It is appropriate to describe the ideal car at present with the words of glory and challenge. On the one hand, the ideal car sales have been reported frequently, on the other hand, the development of the ideal car continues to worry. After the accidents of broken axle and spontaneous combustion, the latest rear end collision accident of ideal car has aroused heated discussion among netizens again. According to media reports, some netizens reported on the social platform recently that a serious traffic accident occurred while driving the ideal one at high speed, causing complete fracture of the front passenger’s A-pillar and causing serious injuries to the passengers in the vehicle. < / P > < p > according to the owner’s recollection, at more than 10:00 p.m. on September 22, his ideal one collided with the rear of the van in front of him during high-speed driving, resulting in the fracture of the A-pillar of the vehicle. The passenger sitting in the co driver’s position had a fracture of the nasal bone, and 33 stitches were sewn on the whole face. Finally, he was judged to be disfigurement and severe concussion, and the rear passengers were slightly concussed. < / P > < p > according to the owner, the speed of collision is not slow, so it seems that the damage degree of A-pillar can be understood, but it is a bit unreasonable that the airbag does not spring off. < / P > < p > for the reason that the vehicle’s air bag does not pop out, the ideal car introduces that the A-pillar does not have a separate sensor, so no airbag is ejected. (the vehicle collision sensor is generally arranged at the anti-collision beam in the front bumper, so is other vehicles. There is no separate sensor in the A-pillar.) < / P > < p > from the accident video and collision results, the truck did not meet the standard, so the vehicle penetrated into the back of the truck, making the A-pillar of the accident vehicle become the main stress point (the front longitudinal beam and energy absorption box on the right side of the vehicle were not damaged, and even the headlamp was not completely broken). The A-pillar could not bear such a large impact force alone, so it was deformed. < / P > < p > query on “why the assisted driving did not recognize the lane change of the vehicle ahead”. According to the ideal car, the current auxiliary driving has limitations on the recognition of vehicles on the side lane and entering the main lane. It can not be recognized as the main target when merging into 1 / 5 vehicle body (in this accident, only 1 / 5 of the truck lane change in front of the vehicle) can be identified. This is also the limitation of the current L2 level auxiliary driving. Therefore, the L2 level auxiliary driving is still dominated by people, which can not be completely replaced at present Make decisions on behalf of others (this is the case with other brands of assisted driving). < / P > < p > it is worth noting that this is not the first time that an ideal car has a potential safety hazard. Since the beginning of this year, the phenomenon of spontaneous combustion and broken axle has occurred successively in ideal cars. < / P > < p > some netizens joked that, “how to wash the broken shaft, broken A-pillar, airbag does not pop out, spontaneous combustion? It must be the fault of the road. The car should not be on the road. It should be kept at home. ” The release and download schedule of Microsoft Flight Simulation varies from region to region