According to Peng Pai News, on April 26, a Wenjie M7 vehicle in Yuncheng, Shanxi Province was involved in a traffic accident, and when the vehicle was driving on the highway, it collided with a watering truck and caused a fire, killing three people in the car, including the driver.
According to relatives of the victims, she learned from the video that after the front of the car caught fire, the doors could not be opened and the airbags did not deploy. In the next two days, the "Wenjie M7 rear-end collision fire" sparked heated discussions on the Internet.
The day after the accident, the official issued a statement saying: "We are deeply saddened by the casualties in the accident and express our deep condolences to the victims." According to the national platform data access management regulations, it was learned that the vehicle was traveling at a speed of 115 km/h when the accident occurred, the airbag was opened normally, and the characteristics of the power battery pack were normal. ”
In an interview with reporters, the question sector responded:
"The characteristics of the power battery pack of the accident car are normal, which means that there is no spontaneous combustion of the battery, and the specific cause of the fire needs to wait for the investigation results of the traffic police department; ”
From the perspective of the car, there are three concerns about this incident, one is why the AEB did not play a role, the second is why the airbag was not opened after the collision, and the third is whether the car has a potential safety hazard after the collision. (The third question is the most important)
Since the launch of the car, safety has always been one of the gimmicks of the car company's product promotion, and consumers have indeed not encountered spontaneous combustion in use. Now it seems that the editor may not have been objective enough and too biased before.
Let's take a look at the AEB problem first, and the official explanation is:
"The model involved in the accident is the entry-level non-intelligent driving version, using the Bosch solution. The working range of the Bosch AEB scheme is 4~85km/h, and the speed of 115km/h in the event of a collision is far beyond the trigger range of the Bosch AEB. ”
The editor thinks this statement is acceptable for the time being, since the driving speed exceeds the range of AEB, it makes sense that it has not started. After all, different versions of the car have different features.
Looking at the airbag aspect, both sides have different opinions on this issue. The victim's family believed that the airbag had not been opened, but Wenjie believed that the airbag had been opened normally. The editor does not dare to make assertions on this issue, and still has to wait for the follow-up investigation of the accident to give the truth.
In terms of the fire, according to the official response of the question, "the characteristics of the power battery pack of the accident vehicle are normal, which means that there is no spontaneous combustion of the battery".
But the reality is that the M7 did catch fire after the collision, and the doors could not be opened, which eventually led to the departure of three lives.
The M7 is a range-extender car with two combustion sources: power battery and gasoline. If "there is no spontaneous combustion of batteries", then it is a gasoline leakage, which leads to a large-scale fire, similar to the spontaneous combustion of oil vehicles. However, in most accidents where fuel vehicles spontaneously combust, the probability of escape for passengers in the car is very high, and the fire will not spread rapidly. Therefore, this response of the question world is debatable.
What's worse is that the door could not be opened after the vehicle caught fire, so that the driver and passenger directly lost the opportunity to escape. Here's another detail, after the accident, a number of well-wishers at the scene participated in the rescue, trying to break the windows of the car and rescue the occupants of the car. However, due to the speed of the fire, the rescue was not successful. This also shows from another side that the power battery has a high probability of spontaneous combustion, because the energy density of the battery is too large, there will be explosive combustion after the fire, otherwise the fire will not spread rapidly.
When Wenjie was publicizing, it has been flaunting the safety of its batteries, but this problem has finally been exposed, and the market and consumers have begun to question the safety hazards of Wenjie.
The biggest safety hazard of new energy vehicles is that they are easy to spontaneously combust after a collision, and the chances of escape for passengers in the car are small. This is not a problem for all new energy vehicles. Xiaobian personally pays more attention to safety, and the reason why I have been driving a fuel car is also for this consideration.
The hidden danger of spontaneous combustion of new energy vehicles is brought by high-density power batteries, which is an objective reality that any car company must face. Now it seems that even Huawei has not achieved a breakthrough in safety technology and failed to fundamentally solve the problem of spontaneous combustion after a collision.
It is hoped that the majority of car companies will not only focus on intelligent driving, but also invest more money and technology in automotive safety. Don't wait until after an accident to solve the problem, after all, lives are too expensive.
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