The embodiment of the invention provides a control method and device for an active return electric power steering system, and relates to the technical field of electric power. The method comprises the steps that the vehicle speed, the steering wheel rotating angle, the steering wheel torque and the motor rotating speed of a vehicle are obtained, the target return speed is determined according to the vehicle speed and the steering wheel rotating angle, the actual return speed of the vehicle is determined according to the motor rotating speed, and the speed difference value is determined according to the target return speed and the actual return speed; the method comprises the steps of determining a corresponding parameter of a PID parameter according to a speed difference value, then determining a target return current according to the speed difference value and the corresponding parameter of the PID parameter, and finally outputting a return torque according to the target return current to control the electric power steering system to return. According to the embodiment of the invention, a return current attenuation module is designed, the dragging hand feeling is reduced, the electric power steering system is controlled, false recognition of the return state is avoided, the stability of the whole electric power steering system is improved, and the method is a better self-adaptive processing method.
本发明实施例提供了一种主动回正电动助力转向系统的控制方法和装置,涉及电动助力技术领域。该方法包括:获取车辆的车速、方向盘转角、方向盘扭矩以及电机转速,根据车速和方向盘转角,确定目标回正速度,根据电机转速确定车辆的实际回正速度,根据目标回正速度和实际回正速度,确定速度差值,再根据方向盘扭矩和车速,确定PID参数的对应参数,然后根据速度差值和PID参数的对应参数,确定目标回正电流,最后根据目标回正电流,输出回正力矩控制电动助力转向系统回正。本发明实施例不仅设计回正电流衰减模块,减少了拽手感,还对电动助力转向系统进行控制,避免回正状态的误识别,提高整个电动助力转向系统的稳定性,是一种更优的自适应的处理方法。
Control method and device of active return electric power steering system
一种主动回正电动助力转向系统的控制方法和装置
2023-06-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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