The invention discloses an electric vehicle low-voltage dual-power-supply system and a control method, and the system comprises a high-voltage power battery, a direct-current voltage conversion module, a power supply coupling control module, a first low-voltage storage battery, a second low-voltage storage battery, a safety isolation module and a load, the first low-voltage storage battery, the second low-voltage storage battery and the load are powered; the direct-current voltage conversion module is connected with the power coupling control module and is used for reducing the output voltage of the high-voltage power battery; the power coupling control module is connected with the first low-voltage storage battery, the second low-voltage storage battery and the insurance isolation module, and is connected with a load through the insurance isolation module, and the power coupling control module is used for carrying out logic judgment according to collected element data and circuit states so as to control the power supply mode of the system; the safety isolation module is used for guaranteeing the safety of the circuit and the load; the load comprises a conventional load and a safe load and is a power supply object of the system.

    本说明书公开一种电动车辆低压双电源系统及控制方法,该系统包括:高压动力电池,直流电压转换模块、电源耦合控制模块、第一低压蓄电池、第二低压蓄电池、保险隔离模块、负载,其中高压动力电池与直流电压转换模块相连,为第一低压蓄电池、第二低压蓄电池和负载供电;直流电压转换模块与电源耦合控制模块相连,对高压动力电池的输出电压进行降压;电源耦合控制模块与第一低压蓄电池相连、与第二低压蓄电池相连、与保险隔离模块相连,并通过保险隔离模块与负载相连,电源耦合控制模块用于根据采集到的元件数据和电路状态进行逻辑判断以控制系统的供电方式;保险隔离模块,用于保障电路和负载安全;负载包括常规负载和安全负载,为系统的供电对象。


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    Title :

    Electric vehicle low-voltage dual-power-supply system and control method


    Additional title:

    一种电动车辆低压双电源系统及控制方法


    Contributors:
    ZHANG HAIZHU (author) / ZHAO JIAWANG (author) / LEE JIN-WON (author) / YAO SHENGWANG (author)

    Publication date :

    2022-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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