The invention provides a battery pack heating device and an electric vehicle, and the battery pack heating device comprises a first driving motor, a first three-phase inverter and a heating motor; the first driving motor is electrically connected with a battery pack through the first three-phase inverter and rotates based on electric energy provided by the battery pack; the heating motor is in transmission connection with a first driving motor, and is driven by the first driving motor to rotate; the heating motor is further electrically connected with the battery pack and used for outputting current generated by rotation to the battery pack so as to heat the battery pack through the current generated by rotation. According to the application, the battery pack can be heated, and meanwhile, the voltage fluctuation of the direct-current bus of the driving motor of the electric vehicle in the heating process of the battery pack can be avoided.
本申请提供一种电池包加热装置和电动车,其中,电池包加热装置包括第一驱动电机、第一三相逆变器、加热电机;所述第一驱动电机通过所述第一三相逆变器与电池包电性连接,并基于所述电池包提供的电能转动;所述加热电机与第一驱动电机传动连接,并基于所述第一驱动电机的带动而转动;所述加热电机还与所述电池包电性连接,用于向所述电池包输出转动所产生的电流,以通过转动所产生的电流加热所述电池包。本申请能够对电池包进行加热,与此同时,本申请能够避免在对电池包进行加热过程中,引起电动车的驱动电机直流母线的电压波动。
Battery pack heating device and electric vehicle
电池包加热装置和电动车
2023-03-07
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
Battery pack driving heating control method and device, battery pack and electric vehicle
European Patent Office | 2022
|Electric vehicle battery pack heating system control method
European Patent Office | 2023
|