The invention discloses an electric vehicle cooling system and a control method. The electric vehicle cooling system is composed of a motor cooling system and a battery cooling system, the motor cooling system is composed of a liquid storage tank, a radiator, an electric fan, a water temperature sensor, an electric water pump, a motor, a controller and a DCDC, the liquid storage tank, the radiator, the electric fan, the water temperature sensor, the motor, the controller and the DCDC are connected through a cooling pipeline, and the water temperature sensor is used for collecting temperature signals and transmitting the temperature signals to the controller; and the battery cooling system is composed of an electric water pump, a PTC, a heat exchanger, a CHILLER, an electric water pump, a battery, a water temperature sensor and a liquid storage tank which are connected through a cooling pipeline, and the water temperature sensor collects temperature signals and then transmits the temperature signals to the controller. The electric vehicle cooling system control method is divided into a motor cooling control method and a battery cooling control method. According to the electric vehicle cooling system and the control method, the cooling system can be simplified, and power consumption of parts of the cooling system is reduced; and the control method effectively avoids frequent opening and closing of parts of the cooling system and improves NVH of the system.

    本发明公开了一种电动车冷却系统及控制方法。其中,电动车冷却系统,由电机冷却系统和电池冷却系统构成,电机冷却系统,由储液罐、散热器、电动风扇、水温传感器、电动水泵、电机及控制器以及DCDC组成,通过冷却管路连接,水温传感器用于采集温度信号后传递给控制器;电池冷却系统由电动水泵、PTC、换热器、CHILLER、电动水泵、电池、水温传感器以及储液罐组成,通过冷却管路连接,水温传感器采集温度信号后传递给控制器。电动车冷却系统控制方法分为电机冷却控制方法和电池冷却控制方法。本发明该电动车冷却系统及控制方法能简化冷却系统以及降低冷却系统零部件功耗;控制方法有效避免冷却系统零部件频繁开闭,改善系统NVH。


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    Title :

    Electric vehicle cooling system and control method thereof


    Additional title:

    一种电动车冷却系统及其控制方法


    Contributors:
    QIAN XIN (author) / XU YONGXING (author) / DONG XIANGLI (author) / YANG JIANGXIONG (author) / JIN YONGZHEN (author)

    Publication date :

    2021-07-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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