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The specific process is as follows:
On the evening of September 22nd, Mr. Fan drove a white Li ONE back to Qingdao on G 18 Expressway. Near Pingdu city, he turned on the "assisted driving" function, and the speed was about120km/h.
The driving recorder shows that at the high speed around 10 in the evening, a van in front of Mr. Fan began to turn left and changed lanes into Mr. Fan's lane. At this time, because Li Yi was in the "assisted driving" state, he did not slow down and still drove at the speed of120km/h/h.
When the truck changes lanes at 1/3, the distance between the two cars is only two or three meters.
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(Video link)
According to Mr. Fan, from beginning to end, Li ONE's "assisted driving" system did not give any tips, let alone slow down. Seeing a car in front, he quickly stepped on the brakes and slammed the direction to the left. But the distance was too close, too late, and there was a rear-end collision. Lee's right front car crashed into the left rear of the truck.
Fortunately, Mr. Fan, who has been driving for 10 years, controlled the direction and did not have a second collision.
But in this accident, Mr. Fan's parents were seriously injured. Mother was hit in the face by flying car parts and the glass on the co-pilot, resulting in nasal bone fracture and facial trauma. The doctor said that facial plastic surgery was needed later. Although the father in the second row had no trauma, his cervical spine was damaged and he could only be treated conservatively. Mr. Fan still has a lingering fear. If these flying grenades move a few centimeters, the parents' injuries will be more serious, and the consequences will be really unimaginable.
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After this incident, the ideal staff quickly went to see Mr. Fan's parents. So Mr. Fan and the staff had the following questions and answers:
1.？ Why can't Li ONE's "assisted driving" identify the vehicle in front when it is turned on?
A: The time to assist the driver in identification is too short.
2.？ The relative speed of the two cars was about 30km/h at the time of impact, so why was Li ONE's A-pillar so fragile and directly broken?
It hit the bottom of the truck.
3.？ With such a violent collision, why didn't the seven airbags of the whole car open, causing serious injuries?
A: The airbag didn't hit the key.
14 night, Ideal also made an official response to this incident in Weibo-
The accident was judged by the traffic control department, and the big truck should bear all the responsibilities because of illegal merging.
In this accident, due to the improper installation of protective devices that meet the national requirements, the height of the tail of the big truck was too high, which led to the A-pillar directly blocking the container when Li chased the big truck, making the A-pillar the main stress point, and the A-pillar could not bear it alone, resulting in fracture.
In this accident, only the A-pillar was hit, and other parts, including the front cabin longitudinal beam, front beam and collision beam, were not obviously deformed, which did not belong to the airbag protection scene, so the airbag did not open.
In this accident, the tail of the big truck was squeezed into the body, and even if the airbag was detonated, it could not play any protective role.
At the same time, Ideal also admits that the driver assistance system is limited and cannot be identified as the main target when the vehicle in the next lane merges into 1/5.
03
but
Prior to this, Ideal emphasized its "automation" and "safety" in the promotion of assisted driving.
The word "automatic" was put forward in the publicity, but the limitations of the system were not pointed out, which led many car owners to directly think that the system can make the vehicle "automatically" and the road conditions will be relatively relaxed when driving.
The staff said that the system identification time was too short, so it could not be identified. But in fact, as you can see from the video, from the beginning of the truck to the end of the rear-end collision. A * * * has seven seconds.
It stands to reason that this time should be enough to make a systematic response.
Some excellent ADAS can also brake and avoid in time when the vehicle in front of the side suddenly inserts in a car or even a shorter distance.
What about Li ONE's assisted driving?
The ideal assisted driving system is mainly based on vision system and radar. The former uses Mobileye? EyeQ4？ Vision chip, using 77GHz millimeter wave radar. It can be called the mainstream configuration at present.
But, EyeQ4? There are four versions of I * * camera. According to the horizontal perspective, it is divided into 52? And 100? Two versions.
Where 100? The original video output version has the functions of night, fault and AEB, which can identify the lane, vehicle size, speed and acceleration more accurately. The location of the obstacle. The lane line accuracy is about 10%, and the detection distance can reach 200 meters.
But the ideal version is 52, with limited viewing angle and late recognition.
At the same time, in the ideal official description of the side blind area assistance, it is pointed out that the system covers the blind area of the side and rear of the vehicle, but it does not imply that the "front side" is actually its blind area. However, when car owners see such a publicity with the word "coverage", they think it is a system with a wide coverage, and it is hard to think that they have missed the blind spot in front of the side.
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At the same time, the airbag in this accident is also a hot topic of controversy.
Li ONE's airbag sensor is installed in B-pillar, water tank, cross beam, front side rail and airbag computer.
Judging from the accident scene map, it is very coincidental that the Li Yi sensor perfectly avoided the impact …
Because there is no airbag sensor installed in the fender. Therefore, the right front loader cannot be monitored, the airbag curtain will not be opened, the right airbag curtain is not long enough, the front section does not extend to the middle of the A-pillar, and it does not form a complete enclosure with the airbag of the passenger seat. It makes the passenger in the passenger seat very dangerous and can only bear the impact directly.
There is no air curtain protection on the left front and right front. It is precisely because of this that Mr. Fan's mother suffered such a serious facial injury.
In the official response, Li ONE's A-pillar is made of 1500MPA ultra-high strength steel, which is the same as BMW X7, Audi Q7 and Volvo XC90.
But the data of 1500MPA, which is also written in the ideal official response, actually refers to resistance? Stretch? Strength.
In fact, the tensile strength of steel is generally higher than the yield strength, and the yield strength is actually more tested in accidents. In order to make the number look high and make consumers feel that such a high value should be safe, tensile strength will be used to promote it.
The yield strength of Volvo XC90 steel is only 1500 MPa. A Volvo after-sales staff member said that he had never seen a Volvo with such a broken A-pillar. But in the official response, it is ideal to say that the A-pillar material of this car is the same as that of Volvo XC90.
As a result, in this accident, if the force was too strong, the A-pillar which was hard enough broke, but the airbag did not bounce off. If the strength is not enough, the airbag will not bounce off, but the A-pillar that is hard enough is broken …
It can always be seen that there are indeed security risks in the front of Li Yi. The vehicle in front of the side can not be quickly and accurately identified, there is no airbag sensor on the side, the air curtain on the side is incomplete, and the strength of A-pillar is also in doubt. I wonder what kind of improvement Li wants to make to his ideal after this incident.
Latest accident report:?
10On June 5438+05, a netizen posted a video on social media. As can be seen from the video, Li ONE's left front wheel fell off the car after the accident, and it was suspected that the axle was broken.
The official responded to this:
Attachment: Li officially responded to the September 22 incident.
Editor: Nina
Audit: 8AT
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.