The invention provides a power supply system for an electric heavy truck and the electric heavy truck. The power supply system for the electric heavy truck according to the present invention comprises: a main battery pack fixedly mounted on the electric heavy truck; the battery pack is detachably mounted on the electric heavy truck; the energy converter is in communication connection with the main battery pack and the battery-replacing battery pack, the input end of the energy converter is electrically connected with the output end of the battery-replacing battery pack, the output end of the energy converter is connected with the output end of the main battery pack in parallel, the main battery pack and the battery-replacing battery pack are each provided with a BMS system, and the energy converter comprises a communication module, an ADC module, a microprocessor, a PWM module and an IGBT module. The large-capacity battery pack is divided into the main battery pack and the battery replacement battery pack, the main battery pack reduces the requirements for charging current and charging connectors, the size of the battery replacement battery pack is reduced, the weight is reduced, and the battery replacement difficulty is reduced; the output voltage of the energy converter is slightly higher than the voltage of the main battery pack, so that the battery pack is discharged preferentially and used preferentially.

    本发明提供一种电动重型卡车用电源系统及电动重型卡车。本发明的电动重型卡车用电源系统,包括:主电池包,固定安装在电动重型卡车上;换电电池包,可拆卸地安装在电动重型卡车上;以及能量变换器,与主电池包和换电电池包分别通信连接,输入端与换电电池包的输出端电连接,输出端与主电池包的输出端并联连接,主电池包和换电电池包分别具有各自的BMS系统,能量变换器包含通信模块、ADC模块、微处理器、PWM模块以及IGBT模块。本发明将大容量电池包拆分为主电池包和换电电池包,主电池包降低了充电电流和充电接插件的要求,换电电池包体积减小、重量减轻,降低了换电难度;能量变换器输出电压比主电池包电压略高,实现换电电池包优先放电而被优先使用。


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    Title :

    Power supply system for electric heavy truck and electric heavy truck


    Additional title:

    电动重型卡车用电源系统及电动重型卡车


    Contributors:
    XU YIFAN (author) / LI DONGMEI (author) / QIU KAI (author) / HUANG WEIDONG (author)

    Publication date :

    2022-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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