The invention discloses a target turning angle control method and device based on rear wheel steering, and the method comprises the steps: setting a tire pressure calibration range and a tire load calibration range; an initial rear wheel target rotation angle is obtained, and a target rotation angle correction parameter calculation model is established; judging whether the tire pressure and the tire load exceed a tire pressure calibration range or a tire load calibration range; if the tire pressure calibration range or the tire load calibration range is not exceeded, outputting an initial rear wheel target rotation angle; if the tire pressure calibration range or the tire load calibration range is exceeded, a target rotation angle correction parameter is obtained through a target rotation angle correction parameter calculation model, a corrected rear wheel target rotation angle is obtained after the initial rear wheel target rotation angle is corrected through the target rotation angle correction parameter, and the corrected rear wheel target rotation angle is output; according to the method, the rear wheel target steering angle of the rear wheel steering system is calculated through the wheel speed, the yaw velocity, the steering system steering angle, the tire pressure and the tire load information of the vehicle, and therefore the operation stability of the vehicle is improved.
本发明公开了一种基于后轮转向的目标转角控制方法及装置,其中,方法包括设置胎压标定范围和轮胎负载标定范围;获取初始后轮目标转角,并建立目标转角修正参数计算模型;判断胎压和轮胎负载是否超出胎压标定范围或轮胎负载标定范围;如果未超过胎压标定范围或轮胎负载标定范围,则输出初始后轮目标转角;如果超过胎压标定范围或轮胎负载标定范围,则通过目标转角修正参数计算模型获取目标转角修正参数,初始后轮目标转角经目标转角修正参数修正后获得修正后轮目标转角,并输出修正后轮目标转角;本发明通过车辆轮速、横摆角速度、转向系统转角、轮胎胎压、轮胎负载信息,计算后轮转向系统的后轮目标转角,从而提高车辆的操纵稳定性。
Target steering angle control method and device based on rear wheel steering
基于后轮转向的目标转角控制方法及装置
17.09.2024
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2024
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