The invention discloses a fuel cell automobile energy management method and device. The method comprises the following steps: calculating driver demand power; calculating the total required power; reading battery pack SOC and temperature related information; the energy management unit inputs the total demand power as a signal to the wavelet transform algorithm module; judging whether a battery driving mode condition is met or not; if yes, outputting by the battery pack; and when the condition is not met, selecting a wavelet basis and a wavelet decomposition series, and performing power distribution according to a third-order wavelet decomposition and reconstruction structure. A wavelet transform algorithm is utilized to extract high-frequency components in power required by a driver, the high-frequency components are output by a power battery which is fast in dynamic response and relatively insensitive to high frequency in service life, and low-frequency components in the power required by the driver are output by a fuel cell, so that the functional requirement of the fuel cell serving as a main power source is met; the output power change rate of the fuel cell is reduced and the durability of the fuel cell is improved.

    本发明公开了一种燃料电池汽车能量管理方法及装置。其中,方法包括如下:计算驾驶员需求功率;计算总需求功率;读取电池包SOC和温度相关信息;能量管理单元将总需求功率作为信号输入到小波变换算法模块;对是否满足电池驱动模式条件进行判断;当满足时,由电池包输出;当不满足时,进行小波基和小波分解级数的选取,并根据三阶小波分解和重构结构,进行功率分配。本发明利用小波变换算法,提取驾驶员需求功率中的高频成分,由动态响应较快、寿命对高频相对不敏感的动力电池输出,而驾驶员需求功率中的低频部分,由燃料电池输出,保证了燃料电池作为主要动力源的功能需求,且降低燃料电池输出功率变化率,改善燃料电池耐久性。


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    Title :

    Fuel cell automobile energy management method and device


    Additional title:

    一种燃料电池汽车能量管理方法及装置


    Contributors:
    YANG TIAN (author) / WEI SONGMAO (author) / YU PEILIANG (author) / LI JIASHUAI (author) / WANG ZILONG (author) / LIU QUANZHOU (author) / HU JIMIN (author) / YAN XIAOXIAO (author) / FANG HAIFENG (author) / YAO ZHANHUI (author)

    Publication date :

    2024-02-20


    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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