The invention relates to the technical field of automobile control, in particular to a pedestrian head protection method and system. Comprising the following steps: acquiring a pedestrian head movement track after a pedestrian collides; acquiring a motion track of the vehicle based on the vehicle speed and the deceleration; determining a contact position and contact time of the pedestrian head and the vehicle based on the motion trail of the pedestrian head and the motion trail of the vehicle; determining tire deflation ending time according to the contact time of the pedestrian head and the vehicle and the set contact time, and determining tire deflation starting time according to the tire deflation ending time; the tire deflation starting time is corrected until the set requirement is met; and the tire is deflated according to the corrected tire deflation starting time. The head of the pedestrian is protected based on tire pressure control, when the pedestrian collides with the front portion of the vehicle, pressure relief can be conducted on the tires in advance, the vehicle body is lowered, and the head of the pedestrian is buffered.
本发明涉及汽车控制技术领域,具体地指一种行人头部保护方法及保护系统。包括,获取行人在碰撞发生时刻后行人头部的运动轨迹;基于车辆车速和减速度获取车辆的运动轨迹;基于行人头部的运动轨迹和车辆的运动轨迹确定行人头部与车辆的接触位置以及接触时间;根据行人头部与车辆接触时间与设定接触时间确定轮胎泄气结束时间,根据轮胎泄气结束时间确定轮胎泄气开始时间;对轮胎泄气开始时间进行修正,直至满足设定要求;按照修正后的轮胎泄气开始时间开始对轮胎进行泄气。本申请基于胎压控制对行人头部进行保护,能够在行人与车辆前部发生碰撞时,提前对轮胎泄压降低车身,对行人头部进行缓冲。
Pedestrian head protection method and protection system
行人头部保护方法及保护系统
2024-09-17
Patent
Electronic Resource
Chinese
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