The embodiment of the invention provides a vehicle-mounted charger, a power supply system and engineering machinery, and belongs to the field of power supply systems. The vehicle-mounted charger comprises a control module and a power module, wherein the control module is used for acquiring a charging power parameter value of the power battery system and a power supply set power parameter value ofa man-machine interaction unit in response to a charging starting signal, calculating a second input power parameter value, which is used for meeting permission of the body temperature of the vehicle-mounted charger, of the vehicle-mounted charger, converting the charging power parameter value of the power battery system into a first input power parameter value of a vehicle-mounted charging device, taking the minimum value of the set power parameter value of the power supply, the first input power parameter value and the second input power parameter value as the upper limit value of the inputpower, and controlling the input power of a power module in the vehicle-mounted charger. According to the invention, the input current of the charger is controlled, and the power of the output AC charging power supply is limited within a safe range.

    本发明实施例提供一种车载充电机、一种供电系统和一种工程机械,属于供电系统领域。所述车载充电机包括:控制模块和功率模块;所述控制模块用于响应于充电开启信号,获取动力电池系统的充电功率参数值和人机交互单元的电源设定功率参数值;计算车载充电机用于满足车载充电机本体温度允许的第二输入功率参数值;将所述动力电池系统的充电功率参数值,转换成车载充电装置的第一输入功率参数值;将所述电源设定功率参数值、所述第一输入功率参数值和第二输入功率参数值中的最小值,作为输入功率上限值,控制车载充电机中的功率模块的输入功率。本发明控制充电机的输入电流,将输出交流充电电源的功率限制在安全范围内。


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    Title :

    Vehicle-mounted charger, power supply system and engineering machinery


    Additional title:

    车载充电机、供电系统和工程机械


    Contributors:
    SUN LIANG (author) / CAO SHUBI (author) / LI XIAOHAI (author) / LUO KAI (author) / ZHOU BO (author)

    Publication date :

    2021-03-05


    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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