The invention discloses a wireless charging vehicle end equipment power supply circuit, which is characterized in that a resonance network is connected between a vehicle-end secondary coil and a power conversion assembly, a filter network is connected between a power conversion assembly and a vehicle-end high-voltage battery, a relay is connected between the first connecting end of the filter network and the positive electrodeof the vehicle-end high-voltage battery, a vehicle-end charging controller drives the power conversion assembly to execute pre-charging according to a power request, and a vehicle high-voltage battery controller sends the power request to the vehicle-end charging controller, sends the voltage of a high-voltage battery and the state of the relay at the same time, and controls the state of the relay according to the power request and a pre-charging completion instruction. The invention also relates to a charging control method of the wireless charging vehicle end equipment power supply circuit. According to the invention, backward flowing current of a high-voltage battery at the moment of relay conduction can be avoided, a filter network of vehicle-end charging equipment is effectively protected, the service life of the charging equipment is prolonged, the development cost is reduced, and the efficiency of the charging equipment is effectively improved.

    本发明公开了一种无线充电车端设备电源电路,包括:谐振网络连接在车端副边线圈和功率转换组件之间;滤波网络连接在功率转换组件和车端高压电池之间;继电器连接在滤波网络第一连接端和车端高压电池正极之间;车端充电控制器根据功率请求驱动功率转换组件执行预充电;车辆高压电池控制器向车端充电控制器发送功率请求,同时发送高压电池电压及继电器状态,其根据功率请求和预充电完成指令控制继电器状态。本发明还涉及一种所述无线充电车端设备电源电路的充电控制方法。本发明能避免高压电池在继电器导通瞬间存在的反灌电流,有效保护车端充电设备的滤波网络,延长充电设备的使用寿命,不仅减少了开发成本,而且有效提高了充电设备的效率。


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    Title :

    Wireless charging vehicle end equipment power supply circuit and charging control method


    Additional title:

    无线充电车端设备电源电路和充电控制方法


    Contributors:
    WEI TING (author) / PEI JIAFEN (author) / YANG YANG (author)

    Publication date :

    2021-09-10


    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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