The invention discloses a heating and control method for a dual-motor pure electric vehicle. The dual-motor pure electric vehicle comprises a vehicle control unit, and a heat management controller, a front driving motor, a rear driving motor and a power battery which are connected with the vehicle control unit; the power battery feeds back the battery cell temperature in the battery pack and sends a battery heating request signal when the battery cell temperature in the battery pack is lower than a first preset temperature; the heat management controller detects the temperature of the motor cooling water channel when receiving the battery heating request signal, controls the motor cooling water channel to be connected with the power battery cooling water channel when the temperature of the motor cooling water channel is larger than or equal to a second preset temperature, and sends a cooling liquid temperature rising requirement when the temperature of the motor cooling water channel is smaller than the second preset temperature; and when the vehicle control unit receives the cooling liquid temperature rising requirement sent by the heat management controller, the vehicle control unit sends out a front driving motor locked-rotor heating and rear driving motor active efficiency reduction request. When the vehicle runs in a low-temperature environment, the power battery can be heated.

    本发明一种双电机纯电动车加热及控制方法,包括整车控制器,以及分别与整车控制器连接的热管理控制器、前驱动电机、后驱动电机和动力电池;动力电池反馈电池包内部电芯温度,并在电池包内部电芯温度<第一预设温度时发出电池加热请求信号;热管理控制器在接收到电池加热请求信号时,检测电机冷却水道的温度,在电机冷却水道的温度≥第二预设温度时,控制电机冷却水道与动力电池冷却水道连接,以及在电机冷却水道的温度<第二预设温度时发出冷却液温度升温需求;整车控制器在接收到热管理控制器发出的冷却液温度升温需求时,发出前驱动电机堵转加热、后驱动电机主动降效请求。当车辆在低温环境下行驶时,本发明能够对动力电池进行加热。


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    Title :

    Heating and control system and method for dual-motor pure electric vehicle and dual-motor pure electric vehicle


    Additional title:

    双电机纯电动车加热及控制系统、方法及双电机纯电动车


    Contributors:
    FU BO (author) / GUO SONG (author) / JIA JUNLING (author) / ZHONG CHUAN (author) / DU CHANGHONG (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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