According to the vehicle wheel speed control method, the current motor rotating speed and the tire radius of the target vehicle are obtained through the motor control module, the current wheel speed is determined according to the current motor rotating speed and the tire radius, and the current speed difference change rate is determined according to the current wheel speed and the current vehicle speed; if the current speed difference change rate is larger than a preset speed difference change rate threshold value, a sliding torque request sent by a whole vehicle control module is terminated, and a motor control module unloads load torque so as to control the wheel speed of a target vehicle; according to the method, the speed difference change rate is determined based on the wheel speed, the control strategy for the load torque is determined based on comparison of the preset change rate numerical value of the road surface, so that the wheel speed is controlled, the determination step for load torque control is reduced, the analysis and judgment steps are concentrated on the motor control module, interaction between the modules is reduced, and the control efficiency is improved. And the control efficiency of the load torque is improved.
本发明实施例中的车辆轮速控制方法,通过电机控制模块获取目标车辆的当前电机转速、轮胎半径,根据当前电机转速和轮胎半径确定当前轮速,并根据当前轮速和所述当前车速确定当前速度差变化率,若所述当前速度差变化率大于预设速度差变化率阈值,则终止整车控制模块发出的滑行扭矩请求,并由电机控制模块卸载负载扭矩,以对目标车辆轮速进行控制;本方法通过基于轮速确定速度差变化率,并基于对路面的预设变化率数值进行比较,确定对负载扭矩的控制策略,以此对轮速进行控制,减少对负载扭矩控制的确定步骤,且本方案将分析判断步骤集中于电机控制模块,减少模块间交互,提升了对负载扭矩的控制效率。
Vehicle wheel speed control method and device, electronic equipment and storage medium
一种车辆轮速控制方法、装置、电子设备及存储介质
2023-09-05
Patent
Electronic Resource
Chinese
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