The invention relates to a fuel cell vehicle and a low-temperature starting method thereof.The low-temperature starting method comprises the steps that whether the temperature of a power cell is larger than a first preset temperature or not is judged, and if not, the power cell is heated; in the heating process of the power battery, whether the temperature of the fuel battery is larger than a second preset temperature or not is judged, and if yes, the fuel battery is started under the condition that any one of three fuel battery starting conditions is met; the three fuel cell starting conditions are as follows: the heating power of the power cell is greater than/equal to the minimum net power of the fuel cell; the sum of the power battery charging power and the power battery heating power is greater than/equal to the minimum net power of the fuel cell; the sum of the power battery charging power, the power battery heating power and the electric accessory power is greater than/equal to the minimum net power of the fuel cell. According to the invention, the problems of long starting time and large burden of the power battery caused by starting the fuel battery after the power battery is heated in the prior art can be solved.

    本发明涉及一种燃料电池车辆及其低温启动方法,该低温启动方法包括判断动力电池温度是否大于第一预设温度,若否则对动力电池进行加热;在动力电池加热过程中,判断燃料电池温度是否大于第二预设温度,若是,则在三个燃料电池启动条件的任一个满足的情况下,启动燃料电池;三个燃料电池启动条件分别为:动力电池加热功率大于/等于燃料电池最低净功率;动力电池充电功率与动力电池加热功率之和大于/等于燃料电池最低净功率;动力电池充电功率、动力电池加热功率以及电附件功率之和大于/等于燃料电池最低净功率。在本发明中,能够解决现有技术中动力电池加热完成后再开启燃料电池,导致的启动时间较长和动力电池的负担较大的问题。


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    Title :

    Fuel cell vehicle and low-temperature starting method thereof


    Additional title:

    一种燃料电池车辆及其低温启动方法


    Contributors:
    CHAI JIESHI (author) / JIANG SHANGFENG (author) / MENG DESHUI (author) / JIA LI (author)

    Publication date :

    2023-06-02


    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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