标签： 苏州水磨会所

Explain in detail the intelligent driver assistance system of Mercedes-Benz EQE, and how to realize each function.

It is obvious that Mercedes-Benz’s road to electrification is not smooth. In the process of "elephant turning around", although Mercedes-Benz launched a variety of new energy vehicles, it did not stir up any splash in the market, such as EQC, EQV and other models, which not only made the monthly sales volume bleak, but also accompanied by the huge suspicion of "changing oil to electricity".

Although it came late and got off to a bad start, the new energy market is the future direction of automobile development, and Mercedes-Benz certainly can’t let go of the "new energy track", so in order to get rid of the stereotype of "changing oil into electricity", increase the profit of pure electric vehicles and expand market share, Mercedes-Benz launched a new pure electric platform-EVA.

After that, Mercedes-Benz models were launched around the EVA platform, and EQS, EQS AMG, EQS SUV and Maybach EQS SUV were launched one after another.

However, the development of things did not succeed in Mercedes-Benz’s wish. Due to the high premium of new models and ungrounded conditions, EQS only achieved more than 200 vehicles in the domestic market in the first half of this year, accompanied by the dilemma of price diving, while other models were even more terrible.

Mercedes-benz EQS

Under the above background, Mercedes-Benz launched the domestic version of EQE, which is more affordable to the people, in an attempt to break this dilemma. However, competitors at this price are emerging one after another, such as BMW i4 and Audi A6 E-Tron, and new domestic forces have long been eyeing up. Therefore, it is not easy to regain a city in the new energy track if you want to rely on EQE. Among the three major parts of electric vehicles (driver assistance system related to three electric/intelligent/automatic driving), the performance of Mercedes-Benz EQE is very important.

At present, the automobile industry has entered the era of smart cars, and the most important embodiment of the intelligence of smart cars is the intelligent driving assistance system. At present, automatic driving cannot be realized, but they are all working in this direction. Mercedes-Benz EQE also regards its L2-level assisted driving as a big selling point in the module of "Perception of Technology".

(Information taken from official website)

So what is the strength of Mercedes-Benz EQE in today’s intelligent driving assistance among the three major electric vehicles? Is it worth looking forward to? In this paper, the intelligent driver assistance system of Mercedes-Benz EQE is analyzed in detail as far as possible through the exclusive arrangement of the intelligent driver assistance function, the configuration of major sensors, the topological structure of wiring harness and the realization paths of various functions.

First, the car profile and driver assistance functions are sorted out

At the beginning of this chapter, in order to make it easier for everyone to intuitively understand the current classification and progress of intelligent driving, and to understand the L2 intelligent driving assistance system of Mercedes-Benz EQE, the author combed out the following information on the basis of China’s Auto Driving Automation Classification (GB/T 40429-2021) which came into effect on March 1, 2022, combined with the actual car scenes used in the corresponding grades.

At present, autonomous driving technology is divided into six grades: L0-L5. Among them, L0 class can’t continuously perform the lateral or longitudinal motion control of vehicles in dynamic driving tasks, but it has the ability to detect and respond to some targets and events in dynamic driving tasks. In this stage, the automatic driving system can perceive the environment and provide information or temporarily intervene in vehicle control to assist the driver to drive the vehicle safely.

The L1-class driving automation system can continuously perform the lateral or longitudinal motion control of vehicles in dynamic driving tasks under its design and operation conditions, and has the ability to detect and respond to some targets and events that are suitable for the lateral or longitudinal motion control of vehicles. The driver and the automatic driving system can perform the driving tasks of vehicles at the same time. At this time, the driver is more like a security officer and mainly supervises the driving behavior of the automatic driving system.

L2 level has the functions of ACC, LCC and other level 1 autopilot systems, and it also has the ability to control lateral and vertical motions at the same time. In the autopilot function of L0-L2 level, the driver has the highest control authority and can intervene at any time to immediately release the control of the autopilot system, which is also the level that can be achieved at present.

L3 level means that the system continuously performs all dynamic driving tasks under its design operating conditions, L4 level means that the system continuously performs all dynamic driving tasks and automatically executes the minimum risk strategy under its design operating conditions, and L5 level means that the system continuously performs all dynamic driving tasks and automatically executes the minimum risk strategy under any driving conditions.

With the above basic information, it will be more convenient to understand the intelligent driver assistance system of Mercedes-Benz EQE.

At present, the domestic version of Mercedes-Benz EQE has a total of three vehicle configurations. The price of EQE 350 Pioneer Edition is 528,000 yuan, the price of EQE 350 Deluxe Edition is 546,000 yuan, and the price of EQE 350 Pre-model Special Edition is 585,000 yuan. It is positioned as a medium and large pure electric vehicle with a cruising range of 717km-752km. According to official data, it provides L2 intelligent driving assistance system.

Turning back to the driver’s assistance function of Mercedes-Benz EQE, the author translated and sorted out various intelligent driver’s assistance functions of Mercedes-Benz EQE by reading the information of Mercedes-Benz official website.

(Translated according to Mercedes-Benz official website data)

For car companies, all intelligent functions are usually divided into two categories: driving and parking. First, because the speed of vehicles is different when driving and parking, the research objects, the application of sensors and various algorithms including decision-making algorithms are also different at the technical level. Second, the functional configuration of intelligent driving is the research object, and the corresponding results are more convenient to be matched on different models in a menu manner.

Mercedes-Benz also divides the intelligent driving assistance system into the above two categories, one is the auxiliary function during parking and the other is the auxiliary function during driving.

As can be seen from the information of Mercedes-Benz official website, the version of the driver assistance operating system comes standard with the classic version of the driver assistance component, while the middle-high version comes standard with the enhanced version of the driver assistance component. Functionally, the low version of the active safety early warning system does not have DOW door opening warning, but the middle-high version is standard. In addition, the road traffic signs in the low version are identified as optional, and the middle-high version is standard. In addition, the number of sensors in the low version is one less than the other two, and the difference lies in the number of cameras.

(According to the information of Mercedes-Benz official website)

However, there must be beautification packaging in the wording of the manufacturer, which may lead to our misunderstanding. In order to avoid this situation, the author will show you the essence through the phenomenon through several functions of Mercedes-Benz EQE.

(According to the data of Mercedes-Benz official website)

Second, the sensor composition of EQE intelligent driver assistance system

1. Number of sensors

Mercedes-Benz EQE provides 23 sensors related to the intelligent driving assistance system, including 1 long-distance millimeter-wave radar, 4 corner radars, 12 parking ultrasonic radars, 1 front binocular stereo multi-function camera, 4 360 parking cameras and 1 in-car viewing angle camera, etc., and is equipped with the enhanced version (P20) of the driving assistance module. The intelligent driving assistance function based on the intelligent navigation distance limiting function (ACCA) can achieve L2 automatic driving level.

In terms of sensor configuration, Mercedes-Benz EQE is far less than the current domestic models of the same level. The new HI version of Extreme Fox Alpha S is equipped with 34 sensors, the whole car of Tucki P7 is equipped with 31 autopilot sensors, and the whole car of Weilai ET7 is equipped with 33 sensors. The prices of these models are far less than those of Mercedes-Benz EQE. Therefore, in the era of smart cars, the cost performance of domestic models is still high, while the Mercedes-Benz brand still has a high premium.

In addition, Mercedes-Benz S-Class /EQS/EQE are all a scheme. There is a laser radar in the topology diagram of foreign vehicle controllers, but the domestic version of EQE has been replaced by a millimeter-wave radar instead of a laser radar, which is different from the foreign version.

One of the most obvious advantages of Mercedes-Benz EQE without laser radar is that it will save costs, because the imported Mercedes-Benz EQS, which is also based on EVA pure electric platform, is equipped with a laser radar. It is reasonable to say that EQE can support laser radar, whether it is overseas or domestic. On the other hand, the policies and regulations of different countries and even cities are different. For example, in North America, different states have different requirements for vehicle headlights. Therefore, in order to save trouble, the geometric multi-beam headlights provided by Mercedes-Benz in North America are also castrated, and the domestic version is the full version. However, the next plan of Mercedes-Benz EQE is to drive automatically at L3 level. In the future, if domestic policies allow, the domestic EQE laser radar will also be on the meeting.

2. Sensor layout

The specific layout of the sensor is shown in the following figure:

(Translated according to Mercedes-Benz official website data)

From the layout, one long-distance millimeter-wave radar is located in front of the vehicle, four corner radars are located on the left and right sides of the front and rear of the vehicle respectively, the positions of 12 ultrasonic radars are shown in the yellow icon in the figure, the front binocular stereo multifunctional camera is located on the roof, and four 360 parking cameras are located on two rearview mirrors and the rear half of the vehicle respectively.

Although the car has reached L2 level of intelligent driver assistance system, it is not worth showing off. L2 level is not high enough, and many cars with more than 100,000 can achieve L2.5 level.

3. Sensor brand, technical highlights and corresponding functions

The sensors carried by Mercedes-Benz EQE have been clearly analyzed. Let’s take a look at the advantages and disadvantages of various sensors:

The hardware of Mercedes-Benz EQE intelligent driving sensor basically comes from big factory suppliers.

In terms of millimeter-wave radar, there is generally a "1+4" method for the millimeter-wave radar equipped with intelligent driving in the industry. It is obvious that Mercedes-Benz EQE has also adopted this number with one long-range millimeter-wave radar arranged in front and four medium-short-range radars arranged at the side and rear of the car.

According to the network information, the millimeter-wave radar of China Net comes from the mainland, and the part numbers are A0009000536/A0009009638/A0009006444 respectively. The intelligent driving assistance function involved is the Distinctive Plus, which mainly participates in the professional version of the Distinctive Pro, the collision alarm and so on.

However, according to the data of foreign versions, there is another scheme for this millimeter-wave radar. The supplier is Bosch, and the part number is A0009052017/A0009055518/A0009051019. There are two possibilities, one is to mix them, and the other is to form a difference between the two.

The four corner radars come from Veoneer, a simple understanding of Veoneer, an automobile technology provider located in Stockholm, Sweden. Its products include radar, laser radar, vision system, advanced intelligent driving assistance, automatic driving software, night driving assistance system, active safety sensors, monocular and stereoscopic vision cameras, and it is worth mentioning that Mercedes-Benz is the first to realize L3 in the world.

The parts number of two corner radars on the outside of the front bumper is A0009051516/A0009059517, which cooperates with millimeter-wave radar to participate in the enhanced version of the automatic distance and speed adjustment system and advanced remote parking; The parts numbers of the two corner radars on the outside of the rear bumper are A0009003335/A0009003138 and A0009051416/A0009059417, which have two main functions. One is similar to the two corner radars on the outside of the front bumper, and cooperates with millimeter-wave radar to participate in the enhanced version of the intelligent navigation distance-limiting function system and advanced remote parking, and the other is to participate in the active blind spot auxiliary system.

The supplier of 12 ultrasonic radars is unknown for the time being. In terms of functions, 6 ultrasonic radars on the front bumper and 6 ultrasonic radars on the rear bumper are all active.

Looking at the visual level again, a binocular stereo multi-function camera on the roof of the domestic EQE adopts Veoneer fourth-generation stereo vision camera system, and the part number is A2239006128/A2239006830/A2239006830, which is composed of fully integrated hardware and sensing software. The camera has been upgraded from the third generation to the fourth generation, and the visual field has been expanded from 52 to 100, with improved accuracy and pixels. This camera uses convolutional neural network technology (CNN) to obtain the available space and detect small obstacles, and at the same time, it can accurately classify and locate the objects in front of the vehicle in combination with 3D stereo, which can be applied to most weather conditions. At the same time, thanks to the core algorithm of Mercedes-Benz, the binocular camera can detect the information of the target without classification, and the situation that obstacles cannot be identified can be well solved. At the same time, the stereo binocular can weaken the demand for lidar and reduce the cost.

It mainly participates in intelligent driving assistance functions such as active lane keeping assistance system, automatic high beam switching (IHC), automatic high beam switching, enhanced version (IHC+), traffic sign recognition, speed sign recognition, advanced head-up display (HUD), distance and speed automatic adjustment system enhanced version (DISTRONIC PLUS) and distance and speed automatic adjustment system professional version (DISTRONIC PRO).

The camera in the car comes from LG’s monocular camera, which is mainly involved in the attention assistance system and will give an early warning when necessary.

The supplier of the other four panoramic cameras for the middle net and exterior rearview mirror is Magna, which acts as a 360 camera and plays a great role in automatic parking.

Third, the brain of EQE intelligent driving system: chip

From the analysis of the sensors in the previous article, it can be seen that the number of sensors carried by Mercedes-Benz EQE is not large, so the requirements for computing power are far less than those of domestic new forces.

At present, the autopilot chip used by Mercedes-Benz EQE has not been disclosed, but according to industry speculation, the Mobileye EyeQ4 chip is used in a high probability.

EyeQ Ultra, the latest version of SoC of Mobileye.

Mobileye mainly provides intelligent assisted driving algorithm+chip solutions to meet the demand of L2-level autopilot. As of last year, about 70% of the world’s production cars were equipped with autopilot chips from Mobileye.

The Xavier 8 core chip of Mercedes-Benz NVIDIA that we often hear is not an intelligent driver assistance chip, but its main function is to support intelligent cockpit experience such as MBUX intelligent human-computer interaction system. In addition, this chip is really carried on the overseas version of EQE, and the domestic version of the chip is not clear.

At present, the computing power of Mercedes-Benz EQE’s self-driving chip is unknown. If it is really a Mobileye EyeQ4 chip, then the computing power is likely to be similar to that of Weilai ES8′ s Mobileye EyeQ4 chip, which is about 2.5TOPS.

However, it is worth mentioning that EQE will realize L3-level automatic driving next, and overseas AMG models of EQE have already confirmed that they will have L3-level assisted driving, so the following models should not adopt Mobileye again. As early as 2017, NVIDIA signed a cooperation agreement with Mercedes-Benz, which will provide smart cockpit chips and autopilot chips for Mercedes-Benz. Therefore, Mercedes-Benz EQE will adopt NVIDIA with greater computing power in the future.

Iv. Topology layout analysis of wire harness

If you want to know how to realize the intelligent driving assistance function of a car, you must know the wiring harness layout.

(Topology diagram of Mercedes EQE harness)

Automotive wiring harness is the network subject of automobile circuit, and there is no automobile circuit without wiring harness. In modern cars, there are many automotive wiring harness, and the electronic control system is closely related to the wiring harness.

Generally speaking, if the functions of microcomputer, sensor and actuator are compared with human body, it can be said that microcomputer is equivalent to human brain, sensor is equivalent to sensory organ, and actuator is equivalent to motor organ, then wiring harness is equivalent to nerve and blood vessel.

Previously, the four buses of automobiles were CAN, LIN, FlexRay and MOST. Generally speaking, CAN bus is the backbone, LIN is the deputy of CAN, FlexRay is the hope of the future, and MOST is responsible for cultural undertakings. However, with the increasing demand for intelligent driving in automobiles, high-speed data transmission is required for applications such as navigation system and parking distance control, so LVDS wiring harness is gradually emerging.

1. CAN bus layout of EQE

CAN is the abbreviation of ControllerArea Network, CAN), which is a multi-master bus between nodes for distributed control system. There is no master-slave distinction in data communication, and any node can initiate data to any other node (one or more), with the highest communication rate of 1Mbps. Taking CAN network as the main network can realize the intelligent control of the automobile, such as automatically locking the door at high speed and automatically opening the door when the airbag pops up. CAN is a Bus communication mode, which means that all nodes are connected to the same transmission medium, which means that the electrical signals in the transmission medium will affect all nodes.

From the vehicle controller topology of Mercedes-Benz EQE, we CAN see that Mercedes-Benz EQE still uses CAN as a means of controller networking. There are 20 groups of CAN buses in Mercedes-Benz EQE, which control many functions of EQE body, including steering wheel assembly/system, etc. In addition, it also plays a vital role in EQE’s intelligent driver assistance system.

2. LIN layout of EQE

LIN(Local Interconnect Network) bus is a supplement to other automobile multi-channel networks such as CAN. In general, LIN does not exist independently in automobiles, but is usually connected with other networks such as upper CAN network, which is suitable for applications that do not have too high requirements on network bandwidth, performance or fault-tolerant functions. For example, in Mercedes EQE, it is mainly used for window control, automatic back door, electric rearview mirror adjustment, seat heating and ventilation, etc., and the use of CAN bus for these functions will cause performance waste.

In Mercedes-Benz EQE, there are 40 groups of LIN buses connected to Ethernet, 1 group of LIN buses connected to FlexRay and 28 groups of LIN buses connected to CAN, some of which have the following functions, and are less related to the intelligent driver assistance system.

It is worth mentioning that Mercedes-Benz EQE is equipped with a new generation of MBUX intelligent human-computer interaction system, with a memory bandwidth of 46.4GB/s per second, which is at the leading level in the industry, so the smoothness of the car operating system is guaranteed to some extent.

3. FlexRay layout of EQE

FlexRay is the research and development achievement after CAN and LIN, which can effectively manage multiple safety and comfort functions. The maximum performance limit of CAN network is 1Mbps, and the maximum performance limit of LIN is 125Kbps, while the maximum data rate of FlexRay on two channels CAN reach 10Mbps, and the total data rate can reach 20 Mbps. Therefore, the network bandwidth of FlexRay may be as much as 20 times that of CAN when applied to vehicle networks.

FlexRay CAN run not only as a single channel system like CAN and LIN networks, but also as a dual channel system. Dual-channel systems can transmit data through redundant networks, which is also an important performance of highly reliable systems.

There are a set of FlexRay buses in Mercedes-Benz EQE, which play a vital role in the intelligent driving assistance of Mercedes-Benz EQE. The related FlexRay bus controllers are as follows:

4. LVDS of EQE

LVDS wiring harness is a bridge between the display screen and the communication motherboard, which plays the role of power supply and signal transmission, and the motherboard transmits the picture to the display screen, that is, the screen wire harness. Any running machine with a screen will inevitably have LVDS wires to transmit data.

There are many electromagnetic radiation sources in the automobile, so anti-interference ability is the most basic requirement of automobile electronic design. In addition, considering the low radiation advantage of LVDS transmission line itself, it hardly causes additional interference to other facilities of the system. LVDS transmission only needs simple resistance connection, which simplifies the circuit layout and the line connection is very simple (using twisted copper cable). LVDS is compatible with various bus topologies: point-to-point topology (one transmitter and one receiver); Multi-branch topology (one transmitter, multiple receivers); Multipoint topology (multiple transmitters, multiple receivers).

Mainly for the 360-degree panoramic image system of Mercedes-Benz EQE. The data transmission technology of Mercedes-Benz 360 image system has experienced two technical changes. Early models used LVDS low-voltage differential signal, while the latest models used HSVL high-speed video link. For example, for E-class cars, LVDS technology was used before 2021, and HSVL technology was adopted in 2021.

At present, there is no sign of LVDS wiring harness in EQE’s vehicle controller topology, but it is certain that Mercedes-Benz EQE adopts LVDS wiring harness.

5. Ethernet main bus of EQE

At present, the mainstream view in the mainstream industry thinks that vehicle Ethernet will become the development trend of intelligent networked automobile bus in the future, so this is also the mainstream direction of many automobile enterprises in research.

There are terminal nodes in the network, which simply means that there is only one Ethernet port on a node; And it is simply understood that there are multiple Ethernet ports on a node, and its main function is to forward information. Switch communication means that all terminal nodes can be connected together through switches, and all transmitted information needs to be forwarded by switches. In switched communication, only two ends of a network line are connected to two ports, and there is no bifurcation. So generally we don’t talk about Ethernet bus, but about Ethernet Network.

In Mercedes-Benz EQE, the Ethernet main bus is connected with 40 groups of LINs, and there is also a controller related to the intelligent driver assistance system:

Actual scene analysis, how does EQE intelligent driver assistance system work?

A car’s intelligent driving assistance system involves many levels, besides the sensor level, there are controller, electronic and electrical architecture level, algorithm and so on, which are the three main modules we often say: perception, decision-making and control. Generally speaking, it is similar to people’s eyes, brain and limbs.

The following will analyze how Mercedes-Benz EQE intelligent driver assistance system works from the practical application scenarios of various intelligent driver assistance functions.

1. PARKING (automatic parking)

On the aspect of automatic parking, major car companies are speeding up the mass production of automatic parking. From the perspective of China’s market layout, the concentration of car companies equipped with APA is high, and the top ten car companies account for 84.1% of the market share. The sales volume of Beijing Benz equipped with APA models is far ahead of other car companies.

At present, there are four automatic parking systems, semi-automatic parking (S-APA), automatic parking (F-APA, RPA), memory parking (HPP) and autonomous parking service (AVP).

The automatic parking function of Mercedes EQE is as follows:

(Translated according to Mercedes-Benz official website data)

Mercedes-Benz also explained EQE’s automatic parking system in detail.

(Translated according to Mercedes-Benz official website data)

According to the data of Mercedes-Benz official website, it can be found that the "parking package with 360 camera and remote parking functions" of Mercedes-Benz EQE supports active parking assistance, memory parking and remote parking assistance. In addition, there is a high-precision self-learning map, so the automatic parking system should be located at the highest SAE L4 level in the automatic parking class: Autonomous parking service (AVP).

According to the analysis of Mercedes-Benz EQE sensor, the configuration of the sensor conforms to the definition of autonomous parking service (AVP).

The automatic parking system includes sensing system, central control system, execution system and human-computer interaction system, which are connected by wiring harness. The fourth chapter above involves wiring harness.

From the design point of view, Mercedes-Benz’s parking system also adopts the integrated parking scheme of looking around and ultrasonic, and the whole car does not use lidar. If lidar is used, the problem of sensor perception limitation will be solved on a large scale.

From the perspective of the whole industry, at present, there are many L2 and L2+ automatic parking integration schemes with car-end transformation as the main technical scheme, and the L4 AVP is involved in Mercedes EQE, so it will also involve the construction of high-precision maps, and the map data needs to be updated regularly and in real time.

It is worth mentioning that the supplier of Mercedes-Benz’s high-precision map construction in overseas models is HERE, whose main function is to serve L3 autopilot. At present, Mercedes-Benz DRIVE PILOT autopilot has landed, and the high-precision map carried by EQE is also paving the way for L3 autopilot on EQE.

Mercedes-Benz DRIVE PILOTL3 Class Autopilot Landing

At present, the domestic version of EQE is equipped with NavInfo. As one of the earliest map vendors in China, NavInfo once became an "oligarch", and NavInfo has close ties with national car companies such as Tesla, Daimler, Ford, BMW, Guangzhou Automobile, Great Wall and Weilai.

According to NavInfo’s new public information, it won the order for the autopilot data management service platform for mass-produced vehicles from Daimler Greater China Investment Co., Ltd. last year, and will build and integrate Daimler’s domestic autopilot platform, and be responsible for the data management service of the platform from November 2021 to November 2024, and at the same time provide data processing services for the passenger cars mass-produced by Daimler Group in China from November 2021 to November 2024 through the platform, so the domestic version of EQE.

After the sensors mentioned above collect the vehicle position information and body state information, the sensing system converts them into digital signals, which provides the basis for the next path planning and decision-making.

In the process of signal transmission, it will be transmitted to the central control system through various routes in the previous chapter (Chapter 4). The specific transmission paths are as follows:

CAN bus –CAN S1 front radar controller area network, CAN S2 rear radar controller area network-controller 4 corner radars (B29/11: left front short-range radar (left front NBR), B29/12: right front short-range radar (right front NBR), B29/13: left rear short-range radar (left rear NBR), B29/14:

Ethernet main bus-controller N41/7: self-learning high-precision map (SHPK), N41/8: position determination.

Chassis FlexRay Bus-A40/11: Multifunctional Camera (MFK).

The information collected by the sensing system is processed and analyzed, and the current position of the vehicle, the position of the target and the surrounding environment are obtained. The central controller judges whether there are parking conditions according to these parameters, calculates the optimal path planning, generates corresponding control instructions, and sends the information such as steering torque and angle information needed in the parking process to the relevant actuators in the form of electrical signals through the vehicle network.

The implementation of Mercedes-Benz EQE is

The signal passes through the chassis FlexRay bus –N68: Electric Power Steering (ES)N68/4: Rear Axle Steering System (HAL)N80: Steering Column Module (Steering Column Tube Module (MRM)) and is finally reflected on the wheels.

The LVDS line is unclear.

2. DRIVING (driving)

In this respect, the functions owned by Mercedes-Benz EQE have been elaborated in the first chapter, and several representative functions are selected for analysis.

2, 1 Active Brake Assist (active brake assist)

Active braking assistance reacts to the actual situation. When there is a collision risk, Mercedes-Benz EQE gives a visual and audible warning, and when the driver does not respond, the system will assist braking.

The sensors involved in the perception level mainly include 1 millimeter wave radar and 12 ultrasonic radars.

Similar to PARKING, the signal is formed by the sensing system, and the transmission path is Ethernet main bus -A89: long-range radar (FBR). The transmission harness of ultrasonic radar is not clear for the time being, but it is clear that the signal must have been transmitted to the central control system.

Finally, at the actuator level, the vehicle will be braked, and the signal transmission path is:

Signal-Chassis FlexRay Bus –N68: Electric Power Steering (ES)N68/4: Rear Axle Steering System (HAL)N80: Steering Column Module (Steering Column Tube Module (MRM))- Brake

At the same time, the signal passes through CAN T：CPC harness to N12/2: SOGE to give an audible warning to the owner.

2, 2 Active Lane Keeping Assist system (active lane keeping assist)

During driving, when EQE deviates from the lane pressing line, the steering wheel will vibrate, and when there is an obstacle beside it, the system will sound an alarm, and at the same time, unilateral braking will intervene to assist the vehicle to return to the right position.

Perception system involves binocular camera on the roof, 4 cameras on the car body, millimeter wave radar, 4 angle radars and 12 ultrasonic radars.

Similar to PARKING, four corner mines are also required to collect information, and the information is transmitted by two wire harnesses: CAN S1: front radar controller area network and CAN S2: rear radar controller area network. This path also participates in active blind spot auxiliary system and intelligent navigation distance limiting function.

In addition, there is the signal of the binocular camera on the roof, and the chassis FlexRay bus-A40/11: Multifunctional Camera (MFK). This signal transmission path is also used in the intelligent navigation distance limiting function, speed sign recognition and traffic signal recognition function.

The information transmission path of millimeter-wave radar is similar to that of active braking assistance, so I won’t go into details, and it is also used for intelligent navigation distance limiting function.

At the execution level, the signal is also transmitted through the chassis FlexRay bus, and finally the vehicle sends out an alarm sound, and the system assists the vehicle to return to the right position.

There are many similarities in the transmission paths of active parking assist system, active braking system, active lane keeping assist system and intelligent navigation distance limiting function. The sensors, actuators and transmission paths involved in each function can also be clearly seen in the harness distribution in Chapter 4 above, and the general idea is similar to that of active braking assist system, active lane keeping assist system and automatic parking analyzed above.

The remaining auxiliary functions can also be analyzed according to the above ideas.

In addition, the actual experience of Mercedes-Benz EQE’s intelligent driver assistance system has been evaluated by German ADAC test before, as follows:

Mercedes-Benz EQE has excellent driving stability and insufficient steering accuracy, but fortunately, with the help of intelligent assisted driving, the model can easily keep driving in a straight line; In terms of braking, the brake pedal feels stiff and there is no clear pressure point. German ADAC test thinks that this is a point that Mercedes-Benz needs to improve, otherwise it will permanently interfere with EQE’s driving experience. In terms of active safety assistance system, Mercedes-Benz is in the leading position in the industry, which is also reflected in EQE models. Under the functions of emergency braking system, including collision and distance warning, it can ensure safety to a great extent; Pedestrian protection is equipped with an active hood, which will automatically rise in the event of collision, thus increasing the distance from hard engine parts. In addition, a predictive emergency braking assistant is standard, which can respond to pedestrians and cyclists.

On the whole, Mercedes-Benz EQE’s intelligent driving assistance has a good help in the actual driving process, but it should be noted that the models tested by ADAC are overseas versions, which are of reference to our domestic consumers, but not much.

VI. Summary

In the research and development of intelligent driving technology, Mercedes-Benz should be regarded as an early brand. As early as 30 years ago, based on the European "Eureka" research plan, it launched an intelligent transportation project called "Prometheus". From the end of 1990s to 2005, Mercedes-Benz introduced a distance control system named DISTRONIC and an upgraded version-Distronic Plus.

After 2015, Mercedes-Benz began to explore intelligent driving through travel services, and in 2018, it cooperated with doctors to launch the Robotaxi service of L4/L5 unmanned taxi in California.

In the last five years, there have been frequent actions. In July 2017, Mercedes-Benz invested in Momenta, a self-driving startup in China, and acquired Torc Robotics in April 2019, which significantly accelerated the intelligent strategy.

However, there is still a significant gap between this speed increase and the research and development, popularization and cost control of smart cars in China. Judging from the cost performance and quantity of its intelligent driving system hardware, the new force of making cars in China is basically the existence of this intelligent driving assistance system that can kill EQE, so from the comparison of peers, this system can’t support the price as high as 500,000 yuan.

Judging from the sensors carried by Mercedes-Benz EQE, it is imperative for Mercedes-Benz EQE to use L3 intelligent driver assistance system. If it can get on the road, then the new domestic forces will only increase, so the high premium of Mercedes-Benz will continue to exist to some extent.

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The Cadillac XT5 showcases the style of a luxury SUV with its exquisite exterior design and dynamic lines. The front face features a family-style shield-shaped air intake grille, coupled with sharp LED headlights, giving the vehicle a strong visual impact. The streamlined design of the body and the tough body contour combine to reflect the perfect fusion of elegance and power. The overall style is both modern and elegant, highlighting the Cadillac brand’s unremitting pursuit of luxury and performance.

沈阳凯迪拉克XT5降价消息，最新报价24.27万！限时特惠

The Cadillac XT5 is luxurious with its refined side design. The body size is 4813mm*1903mm*1682mm and the wheelbase is up to 2857mm, ensuring a spacious interior space and good driving stability. The front and rear wheels are 1645mm, providing balanced handling performance for the vehicle. The tire size is 235/65 R18, and the matching of the modern wheel design not only enhances the visual effect, but also provides the driver with comfortable grip and driving performance. The overall line is smooth, reflecting both the sense of power and elegance, fully demonstrating the elegance and dynamic of the Cadillac XT5.

沈阳凯迪拉克XT5降价消息，最新报价24.27万！限时特惠

The interior design of the Cadillac XT5 is luxurious and atmospheric, with attention to detail and quality. The exquisite leather steering wheel provides a comfortable grip, supports manual up and down + front and rear adjustment, so that the driver can find the best driving position in different driving scenarios. The 8-inch central control screen is clear and easy to use, integrates practical functions such as multimedia system, navigation, phone and air conditioning, and is equipped with automatic speech recognition control system to make driving more convenient. The seats are made of high-quality imitation leather and genuine leather to provide a comfortable riding experience. The main and passenger seats support multi-directional adjustments such as front and rear, backrest, high and low and waist support. It is equipped with heating function, especially the driver’s seat also has a power seat memory function. The second row of seats can also be adjusted back and forth, and supports backrest adjustment, while the proportional reclining space formed after the seat is reclined further enhances practicality.

沈阳凯迪拉克XT5降价消息，最新报价24.27万！限时特惠

The 2.0T engine on the Cadillac XT5 has 237 horsepower and a maximum power of 174 kilowatts, providing the driver with abundant energy output. The torque performance of this engine is equally excellent, with 350 Nm, and with the 9-speed automatic transmission, the vehicle can show smooth handling performance in various road conditions.

In general, Autohome owners appreciate the appearance of the Cadillac XT5. The tough and smooth body lines and family-style front face design he mentioned undoubtedly add a unique charm to this SUV. As a model that combines stability and style, the XT5 has successfully attracted the attention of many consumers with its harmonious proportion and sense of power. Driving in it, whether it is a business trip or a weekend leisure, you can experience the confidence and dignity brought by the XT5.

Nanjing Cadillac XT5 price reduction news, the highest discount 130,000! Only this time

[Autohome Nanjing Discount Promotion Channel] brings you the latest news, this luxury SUV is launching unprecedented promotions in Nanjing. Currently, car buyers can enjoy up to 130,000 yuan in cash, making the original starting price of 242,700 Cadillac XT5 more attractive. This is a great opportunity not to be missed. If you want to seize this price reduction, please be sure to click "Check Car Price" in the quotation form to get a more competitive car purchase price. Act now and put your luxury dreams within reach!

南京凯迪拉克XT5降价消息，最高优惠13万！仅此一次

The exterior design of the Cadillac XT5 is full of power and elegance. Its front face inherits the classic characteristics of the Cadillac family. The iconic shield-shaped air intake grille is equipped with sharp LED headlights, showing a strong sense of technology and luxury temperament. The body lines are smooth, the overall style is full of movement, and the lines are strongly sculptural, which fully reflects the aesthetic concept of American luxury cars. Whether it is the side profile or the tail design, it reflects the exquisite craftsmanship and sports genes of the XT5, which is unforgettable at a glance.

南京凯迪拉克XT5降价消息，最高优惠13万！仅此一次

The side design of the Cadillac XT5 shows the perfect combination of elegance and power. The body size is 4813mm x 1903mm x 1682mm, and the wheelbase reaches 2857mm, making the overall body proportionally coordinated and stable during driving. The front and rear wheel tracks are 1645mm, ensuring the stability of the vehicle during driving. The tire size is 235/65 R18, which can provide good grip whether it is driving on urban roads or in the suburbs. The delicate wheel rim design further enhances the XT5’s sense of movement and visual appeal.

南京凯迪拉克XT5降价消息，最高优惠13万！仅此一次

The interior design of the Cadillac XT5 reflects the perfect blend of luxury and technology. The refined leather steering wheel provides a comfortable grip and supports manual up, down, and front and rear adjustments, making it easy for drivers to operate according to their needs. The 8-inch central control screen has a clear interface, integrated multimedia system, navigation and phone functions, and automatic speech recognition controls, which are convenient for drivers to operate easily on the go.

In terms of seats, the XT5 uses a mix of imitation leather and genuine leather materials to provide passengers with excellent comfort. The main and passenger seats are equipped with 4-way manual adjustment, including front and rear, backrest, height and waist support, to ensure the comfort of long-distance driving. The front seat also provides an additional heating function, which makes winter travel more intimate. In addition, the driver’s seat also has a power seat memory function, so that the driver can quickly find the most comfortable sitting position. The second row of seats also supports front and rear adjustment and backrest adjustment, and has a proportional reclining function, which makes space utilization more flexible.

南京凯迪拉克XT5降价消息，最高优惠13万！仅此一次

The Cadillac XT5 is equipped with a 2.0T turbocharged engine with a maximum power of 174 kilowatts and a corresponding maximum torque of 350 Nm. This power unit has an output of 237 horsepower, which can provide strong power performance. With a 9-speed manual transmission, the driver can enjoy a smooth shifting experience in different road conditions.

In summarizing the owner evaluation of the Cadillac XT5, Autohome emphasized the calmness and high value of its exterior design, as well as the superior experience brought by driving control. Together, these elements have shaped the XT5’s solid image in the hearts of consumers, making it a luxury SUV that meets both visual needs and provides a good driving experience. Whether it is for business or daily travel, the XT5 can win praise for its outstanding performance and design, and live up to its positioning as a luxury brand.

Top ten keywords of the property market in 2022： from ＂four restrictions are loosened＂ to ＂one person buying a house to help the whole family＂

　　2022 is a year of deep adjustment in the real estate market. In the context of the impact of the epidemic and the expected decline in residents’ income, some housing demand was delayed; At the same time, the credit crisis of housing enterprises broke out frequently, the wait-and-see mood of buyers became stronger, and the performance of sales side was weak. However, from the beginning of 2022, favorable policies to support real estate in various places were introduced in turn, and gradual easing continued to be staged. At the central level, it reaffirmed the status of "real estate is a pillar industry of the national economy" and issued a number of policy tools to support the smooth operation of the real estate market.

　　The Paper reviewed the property market in 2022 by taking stock of the top ten keywords of the real estate industry in the past year.

　　Reduce down payment

　　In 2022, credit policies will be optimized in many places, and the purchase cost and purchase threshold of buyers will be further reduced.

　　According to the incomplete statistics of The Paper, more than 100 cities have reduced the down payment ratio of provident fund or commercial personal housing loans to 20% this year, including Chengdu, Sichuan, Shijiazhuang, Shaanxi, Xi ‘an, Taiyuan, Jilin, Changchun, Fuzhou, Fujian, Nanchang, Jiangxi, Chongqing, Guiyang, Guizhou, Lanzhou, Gansu, Yinchuan, Ningxia, Urumqi, Xinjiang, Wuhan, Hubei and other second-tier cities.

　　From the perspective of down payment ratio, institutional statistics show that since 2022, the down payment ratio of the first suite in the unrestricted area has generally dropped to 20%, and the second set has dropped to 30%; The down payment ratio of the first suite in the restricted purchase area is mostly 30%.

　　On January 5, 2023, Ni Hong, Minister of Housing and Urban-Rural Development, mentioned in an exclusive interview with CCTV reporters at the General Station that the buyers of the first house should be strongly supported. The down payment ratio and the first set of interest rates should be lowered. For the purchase of a second house, we should give reasonable support. Trade-in the old for the new, trade-in the small for the big, and give policy support to families with many children.

　　The industry believes that it is expected that in 2023, under the tone of "housing and not speculating", both the supply and demand sides will continue to optimize their policies, and the policy intensity is expected to be further strengthened. The core first-and second-tier cities, especially the core second-tier cities, have greater room for policy optimization. The expectation of policy optimization in first-tier cities is also increasing, and there is room for reducing mortgage interest rate, down payment ratio and taxes.

　　Lower interest rate

　　In 2022, the central bank cut interest rates three times, and the LPR over five years was lowered by a total of 35 basis points, which was the strongest year to cut interest rates after the mortgage interest rate changed anchor LPR in 2019.

　　At the same time, the central bank and China Banking and Insurance Regulatory Commission repeatedly lowered the lower limit of mortgage interest rate. In 2022, in May, the central bank and China Banking and Insurance Regulatory Commission made it clear that the lower limit of the interest rate of the first set of commercial personal housing loans was adjusted to not less than the quoted interest rate of the corresponding term loan market minus 20 basis points; At the end of September, the central bank and China Banking and Insurance Regulatory Commission successively released heavy benefits, and gradually relaxed the lower limit of the interest rate of the first commercial personal housing loan for some cities.

　　According to the monitoring data of the Central Finger Research Institute, as of December 30 last year, nearly 30 cities have reduced the interest rate of the first home loan to below 4%, including Yangjiang, Qingyuan, Yunfu, Zhanjiang, Jining, Wuhan, Guiyang, Jiangmen, Yichang, Xiangyang, Tianjin, Baotou, Fuyang, Shijiazhuang, Qinhuangdao, Kunming, Dalian, Dali, Luzhou, Anqing, Enshi, Wenzhou and Wenzhou.

　　The loan interest rates in some cities have fallen to historical lows. Shijiazhuang and Wenzhou in second-tier cities currently have the lowest interest rates of the first set of commercial loans of 3.8%, while Qingyuan and Zhuzhou in third-and fourth-tier cities have the lowest interest rates of 3.7%.

　　At the same time, the central bank lowered the interest rate of the first personal housing provident fund loan by 15 basis points after seven years. Since October 1, 2022, the interest rate of the first home provident fund loan for more than five years has dropped to 3.1%.

　　On January 5, 2023, the People’s Bank of China and China Banking and Insurance Regulatory Commission issued a notice to establish the first dynamic adjustment mechanism of housing loan interest rate policy. In cities where the sales price of newly-built commercial housing has decreased month-on-month and year-on-year for three consecutive months, the lower limit of the local first home loan interest rate policy can be maintained, lowered or cancelled in stages.

　　"four limits" are loosened

　　The optimization policy of loosening the "four limits" of purchase restriction, loan restriction, price restriction and sales restriction has become the first choice for the regulation of the property market in various places.

　　According to the statistics of the Central Finger Research Institute, as of December 26th, 2022, more than 330 provinces, cities and counties in China have issued more than 1,000 housing market easing policies, which involve optimizing purchase restriction (111 in 48 cities), optimizing loan restriction (240 in 173 cities), optimizing sales restriction (41 in 33 cities) and adjusting price restriction (34 in 29 cities).

　　In March 2022, Zhengzhou started the first shot of adjusting the policy of restricting purchases and loans. Zhengzhou issued the "Notice on Promoting the Benign Cycle and Healthy Development of the Real Estate Industry", which clearly relaxed the purchase restriction and cancelled the "recognition of housing and loan". Subsequently, many cities across the country successively introduced the "four limits" to loosen the property market policy.

　　By the third quarter of 2022, many second-tier hotspot cities will follow up and optimize the purchase restriction policy. According to the statistics of The Paper, the optimization policies of core second-tier cities including Qingdao, Jinan, Suzhou, Tianjin, Chengdu, Xi ‘an, Nanjing, Xiamen, Foshan, Dongguan and Wuhan have been introduced one after another.

　　Buy a house by group purchase

　　"Buying a house by group purchase" has also become an important content in the toolbox of local property market regulation policies in 2022, and many cities have issued documents to encourage group purchase of commercial housing.

　　According to incomplete statistics of The Paper, in the second half of 2022 alone, There are at least Taiyuan in Shanxi, Zhongshan in Guangdong, Shenyang in Liaoning, Tonglu in Zhejiang, Tongling in Anhui, Pu ‘er in Yunnan, Bazhong in Sichuan, Huanggang in Hubei, Changchun in Jilin, Suining in Sichuan, Lianyungang in Jiangsu, Haining in Zhejiang, Macheng in Hubei, Meishan in Sichuan, Hangzhou in Zhejiang, Baise in Guangxi, Zhuji in Zhejiang, Xinghua in Jiangsu, Qingyang in Gansu, Wuzhou in Guangxi, Shaoxing in Zhejiang, Nanning in Guangxi, Zhengzhou in Henan, Laian in Anhui, and Nanning in Hubei. Zunyi, Guizhou, Yiwu, Zhejiang, Quzhou, Hubei, Enshi, Qingdao, Guangxi, Heshan, Linyi, Shandong and other places issued policies or activities related to "buying houses and buying groups".

　　Among the cities that issue "buying houses by group purchase", some cities explicitly encourage government agencies, state-owned enterprises and institutions and other groups to buy houses. At the same time, encouraging real estate enterprises to carry out group purchase concessions is also a major feature of local policies.

　　ensure timely deliveries of presold homes

　　In June, 2022, driven by increasing policy support and active marketing of real estate enterprises, the market showed signs of stabilization. However, in July, the phenomenon of collective "off supply" of buyers caused by the suspension of auction houses appeared in many places, and market confidence was frustrated again, and sales were sluggish.

　　At the end of July, 2022, "Guaranteeing the delivery of buildings and stabilizing people’s livelihood" was first written into the Politburo meeting of the Chinese Communist Party document. No matter the central level, local governments or real estate enterprises, they are actively making efforts to carry out the work related to "guaranteeing the delivery of buildings". According to the monitoring of the Central Finger, over 70 provinces and cities, in combination with local actual conditions, have substantially promoted the implementation of the "Guaranteed Building" initiative.

　　In August last year, the Ministry of Housing and Urban-Rural Development, together with the Ministry of Finance, the People’s Bank of China and other relevant departments, issued special measures to support cities in need to promote the construction and delivery of residential projects that have been sold and are difficult to deliver. At the end of August, media reports showed that the national relief fund earmarked for "Baojiaolou" was launched. The initial scale of this special loan reached 200 billion yuan, and the central bank instructed China Development Bank and China Agricultural Development Bank to arrange it in the existing loan quota.

　　In October last year, the central bank explicitly promoted the use of special loans for "Baojiaolou".

　　In November last year, the Central Bank and China Banking and Insurance Regulatory Commission jointly issued the Notice on Doing a Good Job in Financial Support for the Stable and Healthy Development of the Real Estate Market, which supported the China Development Bank and the Agricultural Development Bank to issue the special loan of "Guaranteed Property" to the borrowers who have been reviewed and filed in compliance with the law, in an efficient and orderly manner, with closed operation and special funds earmarked to support the accelerated construction and delivery of the sold overdue residential projects.

　　At the same time, Pan Gongsheng, member of the Party Committee and Vice President of the People’s Bank of China, introduced at the national symposium on credit work of commercial banks, "The ‘ Baojiaolou ’ On the basis of special loans, the People’s Bank of China will launch 200 billion yuan ‘ Baojiaolou ’ The loan support plan provides commercial banks with zero-cost funds to encourage their support ‘ Baojiaolou ’ Work. "

　　In December last year, the Central Economic Work Conference proposed "to ensure the stable development of the real estate market" and "to do a solid job in ensuring the delivery of buildings, people’s livelihood and stability".

　　Liquidation order

　　From the perspective of housing enterprises, affected by the debt default, in 2022, a number of housing enterprises issued announcements of receiving creditors’ liquidation petitions.

　　According to incomplete statistics of The Paper, in 2022, creditors filed liquidation petitions including Sunshine City, Fantasia Holdings, Fusheng International, China Evergrande, Dafa Real Estate, Tianyu Real Estate, Oceanwide Holdings, Sunac China, Jiayuan International, Xinli Holdings Group, Xiangsheng Holdings Group, Territorial Holdings, Longguang Group, Sanyun Group, Zhongliang Holdings and Xuhui Holdings Group.

　　However, a number of housing enterprises reached a settlement with creditors, or after the final ruling of the court, the final liquidation petition was withdrawn or the two sides entered into a grace agreement.

　　The so-called liquidation petition refers to the listed company’s excessive debts and operational difficulties for various reasons. Creditors or the company itself can submit a liquidation petition to the court, which will hear the liquidation petition. If the petition is passed, the court will issue a compulsory liquidation order to order the company to liquidate.

　　Debt extension

　　According to the monitoring data of the Central Finger Research Institute, as of December 31, 2022, the scale of real estate debt extension has reached 2087.3 yuan, involving 42 related real estate enterprises. In addition, many enterprises plan to launch debt restructuring plans.

　　According to the statistics of The Paper, up to now, three housing enterprises have successfully extended their domestic debts. Among them, Longguang, together with its subsidiaries, proposed the extension of 21 open market bonds, all of which were voted by the holders’ meeting; Sunac Real Estate Group Co., Ltd.’ s overall extension plan of domestic bonds totaling 16 billion yuan was voted by the bondholders’ meeting; In addition, R&F Property’s domestic and overseas bonds totaling about 46.7 billion yuan were all successfully extended.

　　According to the monitoring data of the Central Finger Research Institute, the debt repayment pressure of housing enterprises in 2023 is still relatively high. In 2023, the total amount of credit bonds and overseas debts due by real estate enterprises was 957.96 billion yuan, 70 billion yuan more than the previous year, and the scale of debt repayment by real estate enterprises increased. In particular, in the first quarter of 2023, in January and March, the scale of debt repayment of housing enterprises exceeded 100 billion yuan, and it also exceeded 100 billion yuan in April and July. In recent months, the pressure on debt repayment of housing enterprises was relatively high. At the same time, housing enterprises may still have the risk of debt default. Housing enterprises are under great pressure to repay debts, real estate sales have not stabilized and rebounded significantly, and some housing enterprises have limited financing support, so individual housing enterprises may still default on their debts.

　　Three arrows

　　In 2018, in order to support private enterprises to broaden financing channels, the People’s Bank of China, together with relevant departments, launched a "three arrows" policy combination from three main financing channels: credit, bonds and equity. In the second half of 2022, the financing environment of housing enterprises improved, especially in November, and the central government began to comprehensively strengthen the financing support for housing enterprises, and the "three arrows" made concerted efforts.

　　On November 1, 2022, China Bond Credit Enhancement convened a meeting of 21 private housing enterprises to promote the second batch of credit enhancement projects of more than 10 housing enterprises of about 20 billion yuan. This symposium is also the third time that the Dealers Association has held a symposium on private housing enterprises since August last year.

　　On November 21st of that year, the People’s Bank of China and China Banking and Insurance Regulatory Commission jointly held a national symposium on credit work of commercial banks to study and deploy financial support to stabilize the economy. At the symposium, Pan Gongsheng, member of the Party Committee and vice president of the People’s Bank of China, introduced that on the basis of the special loan for "guaranteed delivery building" launched in the early stage, the People’s Bank of China will launch a loan support plan of 200 billion yuan for six commercial banks to provide commercial banks with zero-cost funds to encourage them to support the work of "guaranteed delivery building". The first arrow "credit" financing force.

　　On November 8, 2022, official website, a dealer association, announced that, with the support and guidance of the People’s Bank of China, the dealer association continued to promote and expand the "second arrow" to support private enterprises, including real estate enterprises, in order to implement a package of policies and measures to stabilize the economy, adhere to the "two unwavering" and support the healthy development of private enterprises. The relevant policies and measures issued by the Dealers Association are the "second arrow" — — Continuation and expansion of bond financing support tools for private enterprises.

　　On November 28th, 2022, CSRC decided to adjust and optimize five measures in equity financing, including resuming mergers and acquisitions and matching financing of listed companies involved in housing, resuming refinancing of listed real estate enterprises and listed companies involved in housing, adjusting and improving the overseas listing policy of real estate enterprises, further giving play to the role of real estate investment trusts (REITs) in revitalizing the existing assets of real estate enterprises, and actively playing the role of private equity investment funds. This is also considered by the industry to be the "third arrow". After the introduction of the "third arrow", many listed real estate enterprises and housing-related enterprises planned to refinance.

　　According to incomplete statistics, it at least includes Country Garden, Agile, Beixin Road and Bridge, Fuxing, Shimao, the new lake treasure, Tiandiyuan, Lujiazui, Vanke, Huaxia Happiness, Jinke, China Merchants Shekou, Jiakai City, Waigaoqiao, Huafa, Guancheng Datong, Greenland Holdings, Dima, gree real estate, Chinese Enterprises, Xincheng Development, Tibet City Investment, and Dexin China.

　　Buying a house by one person and helping the whole family.

　　In 2022, more and more cities introduced a new provident fund policy, making it clear that immediate family members can withdraw the housing provident fund to help buyers pay the purchase price or repay the mortgage, and implement "one person buying a house to help the whole family".

　　According to incomplete statistics of The Paper, by the end of 2022, At least including Shaoyang in Hunan, Chaozhou in Guangdong, Qinhuangdao in Hebei, Zhuhai in Guangdong, Ganzhou in Jiangxi, Cangzhou in Hebei, Chizhou in Anhui, Chuxiong in Yunnan, Tangshan in Hebei, Xianning in Hubei, Quanzhou in Fujian, Tianjin, Maanshan in Anhui, Shenzhen in Guangdong, Hainan, Xinyang in Henan, wuzhong in Ningxia, Huzhou in Zhejiang, Lianyungang in Jiangsu, Taizhou in Zhejiang, Dingxi in Gansu, Suining in Sichuan, Chuzhou in Anhui, Shanwei in Guangdong, Yinchuan in Ningxia and Sichuan. More than 30 local governments, such as Liaocheng in Shandong, Jingzhou in Hubei, Xingyang in Henan and Lai ‘an in Anhui, have issued new policies on provident fund loans. Many places mentioned in the policies that children can withdraw their parents’ provident fund when buying a house, and implement "one person buys a house to help the whole family".

　　Formally, the policy adjustment of "one person buying a house to help the whole family" is carried out from the aspects of helping to repay the loan, helping to withdraw the provident fund to pay the down payment, and withdrawing the relatives’ provident fund to pay the house purchase price. The industry believes that through the help of immediate family members, the economic pressure of buyers can be shared, the purchasing power of residents can be restored from the demand side, and the mood of residents buying houses can be boosted.

　　mainstay industry

　　At the end of December 2022, the central government reiterated that "real estate is a pillar industry of the national economy" and affirmed the importance of real estate, which will help to restore confidence in the real estate market.

　　On December 15th, 2022, Liu He, Vice Premier of the People’s Republic of China delivered a written speech at the fifth round of China-EU dialogue between business leaders and former senior officials. Liu He pointed out that we have great confidence in the overall improvement of China’s economy next year. Real estate is the pillar industry of the national economy. In view of the current downside risks, we have introduced some policies and are considering new measures to improve the balance sheet of the industry and guide the market expectation and confidence to pick up. In the coming period, China’s urbanization is still in a rapid development stage, and there is enough demand space to provide support for the stable development of the real estate industry.

　　On December 18, 2022, the relevant person in charge of the Central Finance Office made an in-depth interpretation of the spirit of the Central Economic Work Conference and the current economic hot issues: the focus of the real estate policy next year (2023) is: First, we must fully recognize the importance of the real estate industry. Real estate is a pillar industry of national economy with long chain and wide coverage. There are still some restrictive policies that hinder the release of consumer demand in housing consumption and other fields, and these consumption potentials should be released.

　　The industry believes that the stability of real estate is crucial to the stable recovery of macro-economy in 2023. Under the positioning of pillar industries, it is expected that the optimization and improvement of policies at both ends of real estate supply and demand will be more direct and rapid in the future, and the intensity is expected to be further increased.

Behind the scenes of the CCTV fire： the price of fireworks used is 350,000 yuan, and the delivery is only 50,000 yuan.

　　From Xu Wei’s unauthorized decision to set off fireworks, to contact with fireworks, to site selection, entry and setting off, a series of illegal operations led to this fire.

　　Large fireworks have not been submitted for approval.

　　According to the regulations, the discharge of Class A fireworks must be approved by the Beijing Municipal Government. On January 19th, 2009, the security office of CCTV issued a notice requesting that "Taiwan is one of the eight places where fireworks and firecrackers are prohibited. During the Spring Festival, fireworks and firecrackers are prohibited in the courtyard of Taiwan, in the dormitory area behind Taiwan and around Taiwan."

　　Sanxiang Company has designed a scheme for setting off Class A fireworks. Fireworks can bloom at an altitude of 160 meters, and the explosion range is about 40 to 50 meters in diameter, which lasts for about two seconds in the air.

　　In court, Xu Wei said that he knew the regulations of the forbidden zone, "but I understand that the CCTV site is not in the forbidden zone". Regarding the regulations on the level and variety of fireworks that can be set off, Xu Wei admitted that "I didn’t look at it. I think it should be a problem that fireworks companies should pay attention to."

　　The discharge operation unit also has the obligation to apply for approval, but Sanxiang Fireworks Company did not apply for approval. Liu Faguo, a shareholder of the company, said that although he did not see the permission and instructions for discharge, he thought that it was okay to discharge in the CCTV yard, and no one was in charge. He knows that only the fireworks of Panda, Yanlong and Doby can be circulated in Beijing, and other fireworks are private guns, so they can’t be sold and set off in Beijing. "But I just want to make money."

　　Waste certificates are mixed up without inspection.

　　According to the regulations, you must apply for a transportation license to sell fireworks in different places. Sanxiang Fireworks entered Beijing illegally, and the transportation permit could not be processed. Liu Faguo found two fireworks licenses for Inner Mongolia, passing through cities including Beijing in an attempt to get away with it. Liu Faguo found Xue Jiwei, who often engaged in transportation in Hebei. Subsequently, Xue Jiwei contacted Zhang Bingjian, a transport driver in Daxing, and asked Zhang to get out of the car and pull fireworks at a price of 2,200 yuan. Liu Faguo specifically instructed that turning on the car radio could interfere with the bomb detector at the checkpoint.

　　On the evening of February 6, fireworks set off from Yongqing Supply and Marketing Cooperative. There are two checkpoints on the way to Beijing, which are located in the north and south of Yongding River Bridge, one is Gu ‘an checkpoint outside the Hebei border, and the other is Daxing Yufa checkpoint inside the Beijing border.

　　That night, there were no personnel on duty at these two checkpoints, and the fireworks car successfully entered Beijing. Subsequently, they took the auxiliary road to bypass the toll booth and drove the car directly under the new CCTV building.

　　The venue is not suitable for forced discharge

　　On February 6, Liu Faguo entered the construction site with Zeng Xu, the fireworks division. Zeng Xu realized that the narrow venue was not suitable for setting off fireworks. He was worried that the fireworks would shatter the glass of the CCTV main building. However, Liu Faguo insisted on using the fireworks scheme. "CCTV people said that it would be useless not to play fireworks, and it must be played, nothing."

　　The fireworks display position has been pushed one or twenty meters in the direction of CCTV Annex Building. The discharge place is only fifty or sixty meters away from the main building. The safe distance of the 6-inch fireworks bomb from the building is 100 meters. In this regard, Zeng Xu said, "I can only do what the boss says."

　　The 6-inch fireworks bomb blooms at an altitude of 160 meters, and the height of the CCTV annex is 159 meters. After the explosion, the high-temperature star fell into the manhole of the window cleaner at the top of the main building of the annex building, causing a fire.

　　-Xu Wei.

　　"Very generous, proud"

　　Xu Wei, a 50-year-old Beijinger, is a professor-level senior engineer. After graduating from Beijing Union University in 1983, he was assigned to work in CCTV. He started as a deputy section chief and was gradually promoted in 20 years until he became the director of the new CCTV office in 2005. After the incident, Xu Wei was removed from public office.

　　A person who worked with Xu Wei recalled that Xu Wei was "generous and proud". One of his junior high school classmates wrote in his blog, "At every class reunion, Xu Wei almost pays the bill for all the students present. He was not a’ top leader’ in his class. But the best after graduation, he should belong to one genus and two. "

　　Therefore, in the choice of fireworks, Xu Wei also asked for "relatively beautiful fireworks, large ones, not the ones at home."

　　-Field visits

　　The burning building is ready to be repaired

　　At 5 o’clock in the afternoon yesterday, the exterior structure of the North Annex Building of CCTV’s new site, which had caught fire, was still dark, and the surrounding area was isolated with a warning line. Individual locations in the downstairs are covered by green protective nets, and iron frames and other items are piled up next to the building.

　　There are security guards on duty at the site of the North Annex Building and at the entrance of the workers’ dormitory on the side, and they can only enter with special certificates.

　　"The repair has not officially started." A worker said that infrastructure such as water and electricity is being cleaned and overhauled to prepare for the restoration and construction. The construction will officially start in the near future, and the specific content and time limit are not clear.

　　-Fire damage

　　The fire caused one firefighter to die and eight people to be injured due to smoke inhalation suffocation. The area of fire and smoke in the building was 21,333 square meters (including 8,490 square meters), and the direct economic loss reached RMB 163,839,300.

　　Fireworks profiteering 300 thousand decoration quality fire "accomplice"

　　Behind the scenes of this fire, the relationship between interests and engineering quality problems were exposed. At present, relevant investigations are still in progress.

　　Quote 350,000 yuan and pick up 50,000 yuan.

　　This fireworks show once claimed to cost one million yuan, but the defendant admitted in the trial that it was actually 350,000 yuan. Liu Fa is the shareholder of Sanxiang Company, and also the business manager, responsible for contacting the fireworks sales and undertaking the fireworks project. He takes the goods from the factory and returns the money to the factory to earn the difference.

　　After Sha Peng and Li Xiaohua contacted Liu Faguo, Liu Faguo invited him to Langfang International Hotel to watch a fireworks show of 300,000 yuan. At that time, Li Xiaohua, who loved fireworks, suggested that there should be several climaxes in the discharge process, and the end should be strengthened, so that the price could be increased to 350,000 yuan, and at the same time, the number of 6-inch fireworks bombs should be reduced. He knows the power of fireworks and is worried about scaring pedestrians on the Third Ring Road.

　　According to Liu Fa’s confession after state affairs, the price of picking up the fireworks from the factory was less than 50,000 yuan. He is prepared to earn a difference of 100,000 yuan by himself, and the rest will be used for freight, travel expenses, accommodation expenses, workers’ wages and design plans, and he is also prepared to pay a benefit of 100,000 yuan.

　　In fact, before the money was settled, the fire broke out and the commission was not finally implemented. On the way to escape in a panic, Liu Faguo asked the relevant personnel to delete the text messages with Sha Peng and others to avoid being verified by the police.

　　It is reported that because the money exchange did not actually happen, this prosecution did not involve this part.

　　High-cost unqualified projects

　　After the fire, the quality problem of CCTV’s new site project is considered as an "accomplice" to the spread of the fire. According to the State Council’s report, one of the four major reasons for the CCTV fire is that "the relevant construction units used a large number of unqualified insulation boards".

　　According to CCTV’s investigation conclusion, the thermal insulation material of the building went too fast after burning, and instantly spread from the top of the North Annex Building to the whole building. This fire is the fastest example of building going too far since the founding of New China.

　　Fifteen employees of Guangdong Zhongshan Sheng Xing Curtain Wall Co., Ltd., who is in charge of the curtain wall decoration of the North Annex Building, and the construction personnel of the external wall decoration of the building were arrested on suspicion of major engineering accidents. The case is still under investigation.

　　According to Caijing, the curtain wall decoration of CCTV’s new site costs a lot of money. The total investment in the construction and installation of the new CCTV site project has exceeded the newly completed Burj Khalifa, the world’s tallest building (the cost is 1.5 billion US dollars, about 10.2 billion yuan). As the curtain wall builder of the North Annex Building, Zhongshan Sheng Xing subcontracted the design, supply and installation of waterproof board of the North Annex Building to Shanghai Jingrui Metal Building System Co., Ltd. on January 18th, 2007. Relevant materials show that Shanghai Elite is a subcontractor selected by CCTV and Zhongshan Sheng Xing through bidding, and the contract price is 5.55 million yuan, but Shanghai Elite can only actually get about 3.78 million yuan according to another "Yin-Yang contract", and the whereabouts of another 1.77 million yuan are unknown.

Rachford decided to renew his contract, and Manchester United’s transfer budget this summer is 200 million.

Manchester United coach Tenghage talked about Rachford and the transfer of the team this summer when interviewed by Manchester United official website:

"Rachford explained his thoughts to me. He wants to stay in the team and help the club succeed. We will reach an agreement on renewing the contract, but I can’t disclose the details yet. Our focus is still on ensuring the top four this season."

"Rachford’s performance this season is very good. He scored many goals and the team played very well. We believe that we will finally get the desired results."

"The signings of the team are still being worked out. Of course, we will need a stable striker to help us score more goals. In addition, we have other goals, but I can’t say yet. "

According to British media reports, Manchester United has a transfer budget of nearly 200 million pounds this summer, including 100 million pounds for strikers and signings in other positions.

Jeff hurt Sun Minghui on purpose？ The injury occurred, and Jeff’s expression was understandable. Zhao Rui’s evaluation was correct

On April 23rd, the highly anticipated playoff battle between Guangdong Men’s Basketball Team and Zhejiang Guangsha kicked off. Since the two sides had already drawn 1-1, the two teams could not retreat in this game. The winning team and Liaoning Men’s Basketball Team joined forces, and the loser could only accept the fate of the end of the season.

Perhaps because of this, after the start of the game, the two sides also pointed the needle at Maimang. Du Runwang from Guangdong men’s basketball team stepped forward first, and his accurate three-pointers helped Guangdong men’s basketball team to take the lead. Then Zhu Junlong from Guangsha, Zhejiang province stepped forward, blocked Ma Shang and Zhang Hao, and hit two three-pointers. Zhu Junlong’s appearance directly changed the situation on the field. Zhejiang Guangsha not only overtook the score, but also took the lead.

The staggered scores also caused a controversial scene on the field. When Guangdong foreign aid Hamilton passed the ball back to Jeff, Sun Minghui made a steal, and the basketball was destroyed by Sun Minghui and left Jeff’s control. In the confrontation, Jeff got the ball, and then Sun Minghui fell to the ground in pain for a long time and failed to get up. Even after the Guangdong men’s basketball team attack ended, Sun Minghui still didn’t get up, and then the referee stopped the game.

Through slow motion, Jeff pushed Sun Minghui away again when he confronted Sun Minghui, and Jeff’s push also made Sun Minghui fall to the ground, and his right elbow severely hit the floor, which is why Sun Minghui failed to get up for a long time. After the slow motion, many fans also angrily criticized Jeff’s little moves, and even some fans questioned Jeff’s intentional injury to Sun Minghui.

Did Jeff really hurt Sun Minghui? First of all, from the slow motion, Jeff only had a physical confrontation with Sun Minghui, and Sun Minghui’s elbow landing after falling was unpredictable, so it was impossible for Jeff to intentionally hurt Sun Minghui.

Secondly, when Sun Minghui fell to the ground, when Du Feng instructed the emergency players to come and explain the tactics, Jeff was still very worried about Sun Minghui’s direction. If Jeff was intentional, Jeff would never have such an expression.

Finally, it is also the evaluation of Zhao Rui. Zhao Rui once said that Jeff is a very calm and clean player. Jeff’s past history also proves that he is not a dirty player, so it is even more impossible for Jeff to intentionally hurt his teammates in the national team. Sun Minghui’s injuries are more accidents, that’s all.

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Writing robot： will it replace human writers？

Writing robot: will it replace human writers?

In the digital age, artificial intelligence technology has penetrated into various fields. Writing is no exception, and more and more writing robots begin to appear. They can automatically generate articles and help people improve their writing efficiency. However, will writing robots become the mainstream instead of human writers? Let’s take a look at the story of tiger writing AI.

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Therefore, we invite everyone to try to use Tiger AI software, learn writing skills and methods on Tiger AI WeChat official account, and share your writing experience with us. Tiger writing AI team is committed to becoming everyone’s partner as an excellent writer, making writing easier, easier and more interesting. Pay close attention to tiger writing AI WeChat official account and start your writing journey!