本发明公开了一种电动助力转向卡滞的监测方法、系统及其车辆,属于车辆技术领域,其中电动助力转向卡滞的监测方法适用于电动助力转向系统,通过获取转向盘的扭矩、电机的扭矩、电机的转子位置和电机的转子转速的信号,根据上述信号来综合判断EPS系统是否存在转向卡滞的问题;当转向盘的扭矩变化、电机的扭矩变化、电机的转子位置变化和电机的转子速度变化中至少一个的变化值超出第一预设阈值,即可判定电动助力转向系统存在转向卡滞故障,能够准确识别出转向卡滞的问题,有利于提高故障的识别率,便于对卡滞问题进行分析,用于设计人员对故障统计分析提供依据,适用于C‑EPS、P‑EPS和DP‑EPS等系统。
The invention discloses an electric power steering clamping stagnation monitoring method and system and a vehicle, and belongs to the technical field of vehicles, the electric power steering clamping stagnation monitoring method is suitable for an electric power steering system, and signals of the torque of a steering wheel, the torque of a motor, the rotor position of the motor and the rotor rotating speed of the motor are obtained; comprehensively judging whether the EPS system has a steering clamping stagnation problem or not according to the signals; when the change value of at least one of the torque change of the steering wheel, the torque change of the motor, the rotor position change of the motor and the rotor speed change of the motor exceeds the first preset threshold value, it can be judged that the electric power steering system has the steering clamping stagnation fault, the steering clamping stagnation problem can be accurately recognized, the fault recognition rate can be increased, and the fault recognition efficiency is improved. And the method is used for providing a basis for statistical analysis of faults by designers, and is suitable for systems such as C-EPS, P-EPS, DP-EPS and the like.
电动助力转向卡滞的监测方法、系统及其车辆
2024-06-14
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |