A self-heating battery system disclosed by the present invention comprises a battery pack, a motor controller and a motor, the motor controller comprises a first phase bridge arm, a second phase bridge arm and a third phase bridge arm which are connected in parallel, and the motor comprises a first stator inductor, a second stator inductor and a third stator inductor. The input end of the first stator inductor is connected with a connecting point of the first upper bridge arm and the first lower bridge arm, the second stator inductor is connected with a connecting point of the second upper bridge arm and the second lower bridge arm, and the input end of the third stator inductor is connected with a connecting point of the third upper bridge arm and the third lower bridge arm; the battery management unit is used for collecting state parameters of a battery pack and sending out a heating instruction based on the state parameters, and the motor controller selects a first target upper bridge arm, a second target upper bridge arm and a third target lower bridge arm based on the heating instruction. And the switch units of the first target upper bridge arm, the second target upper bridge arm and the third target lower bridge arm are controlled to be switched on and switched off according to a preset frequency.
本发明公开一种自加热电池系统,包括:电池组、电机控制器和电机,电机控制器包括并联的第一相桥臂、第二相桥臂和第三相桥臂,电机包括第一定子电感、第二定子电感和第三定子电感,第一定子电感的输入端与第一上桥臂和第一下桥臂的连接点连接,第二定子电感与第二上桥臂和第二下桥臂的连接点连接,第三定子电感的输入端与第三上桥臂和第三下桥臂的连接点连接,电池组还包括电池管理单元,电池管理单元用于采集电池组的状态参数并基于状态参数发出加热指令,电机控制器基于加热指令选择第一目标上桥臂、第二目标上桥臂和第三目标下桥臂,并控制第一目标上桥臂、第二目标上桥臂和第三目标下桥臂的开关单元按照预设频率接通和断开。
Self-heating battery system
一种自加热电池系统
2023-12-01
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |