The invention relates to the technical field of automobile safety, and provides an air bag self-adaptive control ignition method and system and an automobile, and the method comprises the following steps: S1, entering an air bag automatic ignition control mode when it is detected that the automobile possibly collides; s2, determining the current movement speed v < r-c > of the head of the passenger relative to the air bag based on the acquired image; S3, calculating the movement time t of the head of the passenger moving to the complete unfolding position of the air bag at the current movement speed v < r-c >; and S4, whether vehicle collision exists or not is detected, and if the vehicle collision exists, a safe air bag ignition strategy is adaptively selected based on the movement time t. Pre-ignition time is triggered in combination with an external collision signal, and ignition control and reasonable ignition time of an airbag controller are calculated and adjusted in real time according to the passenger off-position state collected by an internal camera; besides, the calibration method involved in the air bag controller not only can meet reasonable ignition time, but also can save a large number of calibration verification tests in calibration development of the air bag controller.
本发明涉及汽车安全技术领域,提供了一种气囊自适应控制点火方法,系统及汽车,该方法包括如下步骤:S1、在检测到车辆可能发生碰撞时,进入气囊自动点火控制模式;S2、基于采集图像确定乘客头部当前相对气囊的运动速度v r‑c,S3、计算出乘客头部在当前运动速度v r‑c下运动到气囊完全展开位置的运动时间t;S4、检测是否存在车辆碰撞,若检测结果为是,则基于运动时间t自适应的选择安全的气囊点火策略。结合外部碰撞信号触发预点火时间,再根据内部摄像头采集到的乘客离位状态,来实时计算调整气囊控制器点火控制及合理的点火时间;此外,气囊控制器中涉及的标定方法,既能满足合理的点火时间,还可以节省气囊控制器标定开发中的大量标定验证试验。
Airbag self-adaptive control ignition method and system and automobile
一种气囊自适应控制点火方法、系统及汽车
2023-03-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Seat airbag control system, control method and automobile
Europäisches Patentamt | 2020
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