The invention relates to the field of new energy automobile control, and particularly discloses a hybrid battery power supply control method and system, a readable storage medium and a pure electric vehicle, the method is applied to a hybrid battery of the pure electric vehicle, and the method comprises the following steps: a VCU analyzes a demand torque T, and judges whether the vehicle is in a driving state or an energy recovery state; the MCU responds to the required torque T and controls a motor to carry out power output or energy recovery; the MCU collects the rotating speed r of the motor and sends the rotating speed r to the VCU, and the VCU estimates the driving power or the energy recovery power P through the torque T and the rotating speed r; the lithium battery BMS1 and the super capacitor BMS2 feed back information to the VCU, and the VCU controls charging and discharging logic of the lithium battery and the super capacitor during driving or energy recovery; the problems that the charging and discharging performance of a pure electric vehicle with a lithium battery as an energy storage mechanism is limited at low temperature and low electric quantity, and the energy density of a super capacitor battery is low are solved, and meanwhile the safety and stability of the hybrid battery are improved.
本发明涉及新能源汽车控制领域,具体公开了一种混合电池供电控制方法、系统、可读存储介质及纯电动车辆,方法应用于纯电动车辆混合电池中,方法包括:VCU解析出需求扭矩T,判断车辆是处于驱动还是能量回收;MCU响应该需求扭矩T并控制电机进行动力输出或能量回收;MCU采集电机转速r发送至VCU,VCU通过扭矩T和转速r预估驱动功率或能量回收功率P;锂电池BMS1和超级电容BMS2将信息反馈至VCU,VCU控制锂电池和超级电容在驱动或者能量回收时充放电逻辑;本发明解决锂电池作为储能机构的纯电动汽车在低温及低电量下充放电性能受限及超级电容电池能量密度低的劣势问题,同时提高混合电池的安全性和稳定性。
Hybrid battery power supply control method and system, readable storage medium and electric vehicle
混合电池供电控制方法、系统、可读存储介质及电动车辆
2023-05-12
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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