The invention discloses a control method of a battery heating system, the battery heating system and an electric vehicle. The battery heating system comprises a super capacitor and a pulse control unit, and the control method comprises the steps that the temperature value and the SOC value of a power battery are acquired; and when the temperature value is smaller than a preset temperature threshold value and the SOC value is larger than a preset electric quantity threshold value, a heating instruction is sent to a pulse control unit, so that the pulse control unit controls bidirectional energy flow between the power battery and the super capacitor in a pulse current mode according to the heating instruction, and the power battery is heated. Therefore, when the interior of the power battery is heated, the utilization rate of electric energy is increased, the driving range of the whole vehicle under the low-temperature condition is increased, and the user experience feeling is improved.
本发明公开了一种电池加热系统的控制方法及电池加热系统、电动车辆。其中,电池加热系统包括超级电容和脉冲控制单元,该控制方法包括:获取动力电池的温度值和SOC值;在温度值小于预设温度阈值且SOC值大于预设电量阈值时,向脉冲控制单元发出加热指令,以使脉冲控制单元根据加热指令控制动力电池与超级电容之间采用脉冲电流的方式进行双向能量流动,对动力电池进行加热。由此,以在进行动力电池内部加热时,提升对电能的利用率,并且提升低温条件下整车的续驶里程,提高用户体验感。
Control method of battery heating system, battery heating system and electric vehicle
电池加热系统的控制方法及电池加热系统、电动车辆
2023-04-14
Patent
Electronic Resource
Chinese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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