The invention relates to a rear wheel steering control method and a rear wheel steering control system. The rear wheel steering control method comprises the steps that S1, the steering angle and the yaw velocity of a steering wheel are obtained in real time; s2, judging whether the vehicle is in a straight running state or not based on the steering angle and the yaw velocity of the steering wheel; s3, judging whether the vehicle enters the bisection road surface or not in response to the condition that the vehicle is in the straight running state; s4, after the vehicle enters the halving road surface, whether the driver intends to keep the vehicle straight on the halving road surface or not is judged; and S5, in response to the situation that the driver intends to go straight on the bisection road surface, rear wheels are controlled to enable the yaw velocity of the vehicle to be 0. Data can be obtained conveniently, hysteresis is avoided, accuracy is high, the driving state of the vehicle can be reflected accurately, the driving intention of a driver can be judged accurately, the rear wheel turning angle is controlled under the condition that the driver intends to go straight, and the vehicle is made to go straight before and after entering the bisection road surface without additional operation such as steering wheel rotation.
本公开涉及一种后轮转向控制方法及后轮转向控制系统,后轮转向控制方法包括:步骤S1:实时获取方向盘转向角和横摆角速度;步骤S2:基于方向盘转向角和横摆角速度,判断车辆是否处于直行状态;步骤S3:响应于车辆处于直行状态,判断车辆是否进入对分路面;步骤S4:响应于车辆进入对分路面后,判断驾驶员在对分路面是否有意图保持车辆直行;步骤S5:响应于驾驶员在对分路面有意图保持直行,控制后轮使车辆的所述横摆角速度为0。获取数据方便且无滞后性、准确性高,可准确地反映车辆行驶状态,以准确地判断驾驶员的驾驶意图,在有意图保持直行的情况下控制后轮转角,使车辆在进入对分路面前后均保持直行状态,无需转动方向盘等额外操作。
Rear wheel steering control method and rear wheel steering system
后轮转向控制方法及后轮转向系统
13.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |