The invention discloses an electric commercial vehicle and a low-voltage power supply system thereof. A first direct-current converter in the low-voltage power supply system starts to work according to a starting signal and converts a power supply provided by a power battery into a first preset power supply, and a first energy storage battery is connected with the first direct-current converter. The first preset power supply can be used for charging and power is supplied to the automatic driving device under the condition that the first direct-current converter stops working. And the automatic driving control switch is arranged between the first energy storage module and the automatic driving power supply end and is switched on and off according to a control signal of the low-voltage device. The power supply of the automatic driving device follows the low-voltage device, the first energy storage module can be used for supplying power to the automatic driving device when the electric commercial vehicle is not started, and after the electric commercial vehicle is not started, the power supply after voltage reduction of the first direct-current converter is directly used for supplying power to the automatic driving device. The problem of power supply synchronism of the low-voltage device and the automatic driving device is solved, and the power supply stability of the automatic driving device of the electric commercial vehicle is improved.

    本发明公开了一种电动商用车及其低压供电系统。低压供电系统中第一直流变换器根据启动信号开始工作,并将动力电池提供的电源转换为第一预设电源,第一储能电池与第一直流变流器连接,可以利用第一预设电源进行充电并在第一直流变换器停止工作的情况下为自动驾驶装置供电。自动驾驶控制开关设置于第一储能模块和自动驾驶供电端之间,根据低压装置的控制信号切换通断。自动驾驶装置的供电跟随低压装置,在电动商用车未启动时能够利用第一储能模块为自动驾驶装置供电,而在电动商用车未启动后直接利用第一直流变换器降压后的电源为自动驾驶装置供电,解决了低压装置和自动驾驶装置的供电同步性问题,提高了电动商用车的自动驾驶装置的供电稳定性。


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    Title :

    Electric commercial vehicle and low-voltage power supply system thereof


    Additional title:

    一种电动商用车及其低压供电系统


    Contributors:
    SUN YISHAN (author) / SUN ZUOZHI (author) / WEI MINGRUI (author) / ZHOU LIANGLIANG (author)

    Publication date :

    2022-12-06


    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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