The invention relates to the technical field of automobile steering wheel rotation angles and discloses an automobile steering system and a steering wheel absolute angle diagnosis method thereof, an automobile and a medium. The method comprises the following steps of after the automobile steering system is started, acquiring a first steering wheel absolute angle measured by an angle sensor in real time; determining a second steering wheel absolute angle according to the rear wheel speed signal; after it is detected that the absolute value of the angle difference value between the first steering wheel absolute angle and the second steering wheel absolute angle is larger than a preset difference value threshold value, an absolute angle diagnosis mode of the steering wheel being started, and automatic angle diagnosis operation being conducted according to the second steering wheel absolute angle in the absolute angle diagnosis mode. According to the method, the product cost is effectively reduced, and the utilization rate of vehicle-mounted hardware resources is improved; the possibility of automatic angle diagnosis operation under the condition that the absolute angle of the first steering wheel or the absolute angle of the second steering wheel is abnormal is avoided, and safety of the automobile is improved.
本发明涉及汽车方向盘转角技术领域,本发明公开了一种汽车转向系统及其方向盘绝对角度诊断方法、汽车及介质,所述方法包括:在汽车转向系统启动后,实时获取通过角度传感器测得的第一方向盘绝对角度;根据后轮轮速信号确定第二方向盘绝对角度;在检测到第一方向盘绝对角度与第二方向盘绝对角度之间的角度差值的绝对值大于预设差值阈值后,启动方向盘的绝对角度诊断模式,并在绝对角度诊断模式下,根据第二方向盘绝对角度进行角度自动诊断操作。本发明有效降低了产品成本,且提高了车载硬件资源使用率;避免了在第一方向盘绝对角度或第二方向盘绝对角度出现异常的情况下进行角度自动诊断操作的可能性,提高了汽车的安全性。
Automobile steering system, steering wheel absolute angle diagnosis method thereof, automobile and medium
汽车转向系统及其方向盘绝对角度诊断方法、汽车及介质
2021-12-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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