The invention provides a double-battery parallel control system and method for an electric vehicle. The double-battery parallel control system comprises a first battery pack, a second battery pack, a first control unit, a second control unit, a first MOS tube, a second MOS tube, a main control unit and a load, the first control unit is used for acquiring a first voltage of the first battery pack and sending the first voltage to the main control unit; the second control unit is used for acquiring a second voltage of the second battery pack and sending the second voltage to the main control unit; the main control unit is used for comparing the first voltage and the second voltage with a preset voltage to obtain a comparison result; controlling the first battery pack and/or the second battery pack to discharge the load according to the comparison result; or controlling the load to charge the first battery pack and/or the second battery pack according to the comparison result; the parallel mutual charging circulation of the two battery packs can be effectively blocked, the double-power on-load capacity of the current larger than or equal to 200A is met, the calorific value can be effectively reduced, and the system stability pressure of a top-speed electric motor can be relieved.

    本发明提供了电动车的双电池并联控制系统和方法,包括:第一电池组、第二电池组、第一控制单元、第二控制单元、第一MOS管、第二MOS管、主控单元和负载;第一控制单元用于获取第一电池组的第一电压,并将第一电压发送给主控单元;第二控制单元用于获取第二电池组的第二电压,并将第二电压发送给主控单元;主控单元用于将第一电压和第二电压与预设电压进行比较,得到比较结果;根据比较结果控制第一电池组和/或第二电池组对负载放电;或者,根据比较结果控制负载对第一电池组和/或第二电池组充电;可以有效阻断两块电池组并联互充环流,并满足大于或等于200A电流的双电带载能力,还能有效降低发热量,减轻极速电摩的系统稳定性压力。


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    Title :

    Double-battery parallel control system and method for electric vehicle


    Additional title:

    电动车的双电池并联控制系统和方法


    Contributors:
    SHI GUIFU (author) / MA OUYANG (author) / WEI DEBING (author)

    Publication date :

    2022-03-18


    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 / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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