The invention discloses a power system of a micro electric vehicle and a control method of the power system. The system comprises a power system composition, a high-voltage power-on process and a lithium battery pack charging and heating process, wherein the power system comprises a power storage battery pack, a motor controller, a direct-current converter and a vehicle-mounted charger, the power-on process is completed by systems such as a BMS, an MCU and an OBC, and participation of a VCU is avoided. On the premise of the existing whole vehicle power system architecture, a CAN bus is used for communicating with a battery management system (BMS), a motor control unit (MCU), a vehicle-mounted charger (OBC) and other systems to control the whole vehicle power system to be safely powered on,moreover, in the power-on process, the high-voltage fault of the whole vehicle power system can be accurately diagnosed, and corresponding processing can be rapidly conducted.

    本发明揭露了一种微型电动汽车的动力系统及其控制方法,包括动力系统组成、高压上电流程、锂电池组充电加热流程,动力系统包括动力蓄电池包、电机控制器、直流转换器、车载充电机,上电流程由BMS、MCU、OBC等系统完成,无整车控制(VCU)参与。本发明在已有整车动力系统架构的前提下,通过CAN总线对电池管理系统(BMS)、电机控制器(MCU)、车载充电机(OBC)等系统进行通讯,来控制整车动力系统安全上电,同时在上电过程中,能准确诊断出整车动力系统的高压故障并迅速作出相应处理。


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    Title :

    Power system of micro electric vehicle and control method thereof


    Additional title:

    一种微型电动汽车的动力系统及其控制方法


    Contributors:
    LI ZHIBO (author) / YANG JUAN (author) / ZHANG GUONENG (author)

    Publication date :

    2020-07-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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