The invention discloses a battery SOC management method of a hybrid electric vehicle. The method comprises the steps of collecting a temperature of a battery, determining a current SOC upper limit value, a SOC lower limit value and a SOC median of the battery according to the temperature, determining SOC management limit value of the battery according to the SOC median, and carrying out vehicle power distribution according to the SOC management limit value of the battery. In the management method, the whole vehicle power distribution is carried out according to the battery SOC management limitvalue so that working efficiency of the battery is improved, a service life of the battery is prolonged, and the economy of the whole vehicle is improved under conditions that the battery is ensurednot to be overcharged or overdischarged and an auxiliary regulation effect of the power battery on the main power source of the hybrid vehicle is fully used .

    本发明公开了一种混合动力汽车的电池SOC管理方法,包括:采集电池的温度,根据温度确定电池当前的SOC上限值、SOC下限值以及SOC中值,根据SOC中值确定电池SOC管理限值,根据电池SOC管理限值进行整车功率分配。本发明提出的管理方法中,根据电池SOC管理限值进行整车功率分配,可以保证电池在不过充、过放的前提下,充分发挥动力电池在混动车型对主功率源的辅助调节作用的同时,提高电池的工作效率,延长电池的使用寿命,进而提高整车经济性。


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    Title :

    Battery SOC management method of hybrid electric vehicle


    Additional title:

    一种混合动力汽车的电池SOC管理方法


    Contributors:
    YIN JIANKUN (author) / LIU JIANKANG (author) / LI CHUAN (author)

    Publication date :

    2020-10-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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