The invention relates to the technical field of intelligent chassis and automobile active safety, in particular to a rear wheel active steering system, a vehicle stability control method, a vehicle stability control system and a medium. The actual rear wheel steering angle is obtained through a rack position signal collected by the rack position sensor in real time and a rear wheel steering structure characteristic look-up table, the control system conducts closed-loop feedback control on the motor according to the deviation between the expected rear wheel steering angle and the actual rear wheel steering angle, and the vehicle is made to work in a safe state all the time. According to the rear wheel active steering control method, driving working condition recognition and instability emergency intervention are utilized, the safety problem of high-speed driving of the vehicle is well solved, and the ideal control effect can be achieved on various different road surfaces, different tire pressures and different vehicle speeds.
本发明涉及智能底盘与汽车主动安全技术领域,具体而言,涉及后轮主动转向系统及车辆稳定性控制方法、系统、介质,当车辆存在失稳风险时,所述控制系统根据车辆行驶状态实时计算期望的后轮转角,通过齿条位置传感器实时采集的齿条位置信号和后轮转向结构特性查表得到实际的后轮转角,控制系统根据期望的后轮转角与实际的后轮转角之间的偏差对电机进行闭环反馈控制,使得车辆始终工作在安全状态。该后轮主动转向控制方法利用行驶工况识别和失稳紧急干预,很好地解决了车辆高速行驶安全性的问题,并在各种不同路面、不同胎压、不同车速时都可以达到理想的控制效果。
Rear wheel active steering system, vehicle stability control method and system and medium
后轮主动转向系统及车辆稳定性控制方法、系统、介质
12.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Rear wheel steering control method and device of vehicle, rear wheel steering controller and medium
Europäisches Patentamt | 2024
|Vehicle rear wheel steering control system and control method
Europäisches Patentamt | 2020
|