The invention discloses a battery control method of an extended-range electric vehicle, a storage medium and a vehicle. The method comprises the steps that the vehicle is controlled to enter a pure electric mode or an extended-range mode; the vehicle control unit calculates a driver demand torque T according to the electric vehicle information, and the motor controller judges whether the vehicle is in a driving state or an energy recovery state according to the demand torque T; through mutual cooperation of the range extender, the lithium ion battery, the super-capacitor battery, the motor controller, the whole machine controller, the first high-voltage relay, the second high-voltage relay and the third high-voltage relay, under the working conditions of low temperature, low residual electric quantity and the like, when the motor outputs power, the super-capacitor is adopted for discharging or the range extender is combined for discharging, and the working efficiency is improved. The large attenuation of the acceleration performance of the vehicle caused by the reduction of the discharge capacity of the lithium ion battery is avoided; and when the estimated energy recovery power is too large or the energy recovery power and the generated power of the range extender are too large, the super capacitor battery is charged, so that the lithium ion battery is prevented from being damaged due to overcharge.
本发明公开了一种增程式电动汽车的电池控制方法、存储介质和车辆,方法包括控制车辆进入纯电模式或者增程模式;整车控制器根据电动汽车车辆信息计算驾驶员需求扭矩T,电机控制器根据需求扭矩T判断车辆处于驱动状态或能量回收状态;本发明通过增程器、锂离子电池、超级电容电池、电机控制器、整机控制器、高压继电器一、高压继电器二和高压继电器三的相互配合,在低温和剩余电量低等工况下,且电机进行动力输出时,采用超级电容放电或者联合增程器放电,避免因锂离子电池放电能力下降导致车辆加速性能出现较大衰减;当预估能量回收功率过大或者能量回收功率与增程器发电功率过大时,向超级电容电池充电,避免锂离子电池因过充从而造成损伤。
Battery control method of extended-range electric vehicle, storage medium and vehicle
一种增程式电动汽车的电池控制方法、存储介质及车辆
2023-05-23
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
European Patent Office | 2023
|European Patent Office | 2024
|Extended-range electric vehicle control method, storage medium and system
European Patent Office | 2023
|European Patent Office | 2023
|European Patent Office | 2024
|