The invention provides a vehicle motor torque control method. The vehicle motor torque control method comprises the steps that torque required by a driver and a torque change gradient changing along with current execution torque of a motor are obtained; if the current accelerator opening degree is in a maintained or increased state, a motor efficiency Map map required in the current state is determined according to the current bus voltage, and a vehicle speed optimization control interval is determined based on the current vehicle speed of the whole vehicle; marking the current working point of the motor in the obtained motor efficiency Map; according to the vehicle speed optimization control interval and the torque required by a driver, a target working point enabling the motor driving efficiency to be the highest is found out in the obtained motor efficiency Map; calculating a torque request gradient according to the current working point and the target working point of the motor; and controlling the motor to change from the current execution torque of the motor to the torque required by the driver according to the torque request gradient.
本发明提供了一种车辆电机扭矩控制方法,包括:获取驾驶员需求扭矩及随电机当前执行扭矩变化的扭矩变化梯度;若当前油门开度处于维持或增加状态,根据当前母线电压确定当前状态下需求的电机效率Map图,并基于当前整车车速确定车速优化控制区间;在获得的电机效率Map图中标注电机的当前工作点;根据车速优化控制区间和驾驶员需求扭矩,在获得的电机效率Map图中查找出使电机驱动效率最高的目标工作点;根据电机的当前工作点和目标工作点,计算扭矩请求梯度;控制电机按照所述扭矩请求梯度从电机当前执行扭矩变化至所述驾驶员需求扭矩。
Vehicle motor driving torque control method and device, vehicle, equipment and medium
一种车辆电机驱动扭矩控制方法、装置、车辆、设备及介质
2022-12-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Motor torque control method, motor torque control device, vehicle and readable storage medium
Europäisches Patentamt | 2020
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