Introduction: Why did AEB fail to avoid collision, the cause of the fire, etc. We asked the community to respond to four major questions about this accident. (Text/Editor Zhou Shengming/Zhang Guangkai) At 14:56 pm on May 6, 2024, AITO Automobile released "Explanation on Technical

Introduction: Why AEB failed to avoid collision, the cause of the fire, etc. asked the world and responded to four major questions about this accident.

(Text/Editor by Zhou Shengming/Zhang Guangkai) At 14:56 pm on May 6, 2024, aito Auto released on the official Weibo "Explanation on technical issues related to Wenjiexin m7 plus in the traffic accident on the Houping Expressway section of Shanxi Province" 》.

On April 26, 2024, a traffic accident occurred on the Houping Expressway in Shanxi Province. A Wenjie Xin m7 plus rear-ended and collided with a road maintenance vehicle while driving in the inner fast lane. This incident has recently received widespread attention on the Internet. Regarding the technical issues related to the Wenjie new m7 plus vehicle (hereinafter referred to as the "accident vehicle") that Wenjie users are concerned about in the accident, Wenjie's official explanation is as follows:

Question 1: Why did the automatic emergency braking (AEB) function not successfully avoid collisions? ?

The braking system of the vehicle involved in the accident was normal before the collision. According to background data analysis, there were two braking actions within 5 minutes before the accident, and the vehicle was able to decelerate normally.

Wenjiexin m7 plus is equipped with a level 2 assisted driving system (not Huawei ads 2.0 intelligent driving system), and its automatic emergency braking (AEB) working range is from 4 to 85km/h. The vehicle speed at the time of the collision was 115km/h, which exceeded the working range of automatic emergency braking (AEB).

Question 2: What caused the vehicle fire? Has the battery spontaneously ignited?

When the accident vehicle collided with the road maintenance vehicle ahead at a high speed of 115km/h, the protruding beam-like hard structure at the rear of the vehicle in front instantly and seriously invaded the front engine room and passenger compartment on the upper left side of the accident vehicle, causing serious damage to the front engine room and passenger compartment, and the wiring harness was instantly damaged. Cut off, the front engine room was ignited by high-temperature components or short-circuit sparks in the wiring harness. The left side of the front engine room caught fire first, and then the fire spread to the entire vehicle. The power battery pack did not spontaneously ignite.

Question 3: Is the airbag deployed normally?

According to background data analysis, before the collision, there was a seat belt buckle signal in the main driver's seat, but there was no seat belt buckle signal in the passenger seat and the three rear seats, and the airbag status monitoring was normal. When a collision occurs, the vehicle's airbags deploy normally.

Question 4: Can the car door be opened after the collision?

Wenjiexin m7 plus has a collision automatic unlocking function and is equipped with a mechanical door handle. In special emergencies, the door can be unlocked by pulling the mechanical door handle. When the vehicle in this accident collided with the road maintenance vehicle ahead at a high speed of 115km/h, the protruding beam-like hard structure at the rear of the vehicle in front instantly and seriously invaded the front engine room and passenger compartment on the upper left side of the accident vehicle, causing the power lines and signals in the front engine room and passenger compartment to be damaged. The line was cut off instantly, and the door handle controller could not receive the pop-up signal. The rescuers broke the window and pulled the inner handle of the mechanical door to open the door to carry out the rescue.

Accident review

On April 26, 2024, a traffic accident occurred on the Houping Expressway in Shanxi Province. A Wenjie Xin m7 plus rear-ended and collided with a road maintenance vehicle during operation while driving in the inner fast lane. Subsequently, the vehicle caught fire. Three people died.

Late at night on April 29, the family members of Shanxi Yuncheng Wenjie m7 accident that caused casualties posted on social platforms, "Thank you to the relevant departments for providing the investigation materials! Thank you to the kind people who broke the window and opened the door to rescue my relatives at the first time. Although they had already been injured due to the vehicle, A life was lost in the collision!”

The family members of the casualties also said, “The deceased is safe! I hope you will ignore or delete all the false reports and content on the Internet, and I hope you will stop disturbing me and my family!”

After the accident, some According to media reports, relevant sources said that the car involved in the accident was equipped with Bosch’s smart driving solution. However, Bosch quickly denied this statement. Bosch stated that after investigation, the vehicle involved was not equipped with the Bosch intelligent driving system (including AEB).

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