The invention discloses an electric vehicle sliding energy recovery optimization control method, system and device and a medium. The control method comprises the steps that a VCU receives battery allowable power; carrying out battery allowable maximum charging power feedforward control; when the actual packing power of the battery is larger than the allowable power limit value of the battery, PID adjustment is carried out based on the error value of the actual packing power and the allowable power of the battery; calculating the available power of the motor according to the real-time power consumed by the high-voltage accessory and the allowable power of the battery; torque value conversion; and calculating and outputting a negative torque threshold value of the motor end. Feedforward and feedback cooperative control over the available power of the battery is added at the VCU end, the charging power of the available battery of the motor is corrected, the phenomenon of battery power supersaturation caused by vehicle sliding and damage to a battery pack are reduced, configuration is only carried out on the software level, and other hardware equipment does not need to be changed or added.
本发明公开了一种电动汽车滑行能量回收优化控制方法、系统、设备及介质,控制方法包括:VCU接收电池许用功率;进行电池许用最大充电功率前馈控制;当电池实际入包功率大于电池许用功率限值时,基于电池实际入包功率和许用功率的误差值,进行PID调节;根据高压附件消耗的实时功率及电池许用功率计算电机可用功率;扭矩值转换;电机端负扭矩阈值计算及输出。本发明通过在VCU端增加对电池可用功率的前馈和反馈协同控制,对电机可用电池充电功率进行修正,减少因车辆滑行产生电池功率过饱和现象,对电池包造成损害,且该发明只在软件层面进行配置,不需要更改增加其他硬件设备。
Electric vehicle sliding energy recovery optimization control method, system, equipment and medium
电动汽车滑行能量回收优化控制方法、系统、设备及介质
2024-08-30
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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