The invention relates to a whole vehicle energy management method for an extended-range electric vehicle, and relates to the technical field of hybrid vehicle energy management. According to the method, the target travel of the vehicle is divided into independent operation segments through the operation data of the vehicle, the environment information, the driving style of a driver and the like, and the whole vehicle demand power and the driving time of each operation segment are estimated. With the minimum fuel consumption in the travel as the target, planning the generated power reference of the range extender in each operation segment in the vehicle driving process by using an optimization algorithm, and correcting the generated power of the range extender in real time based on the instantaneous demand power of the whole vehicle; and finally, steady-state and transient-state following between the generated power of the range extender and the required power of the whole vehicle in the stroke is realized. According to the invention, the charging and discharging times of the power battery are reduced on the basis of lower fuel consumption, the service life of the power battery is prolonged, and the running economy of the whole life cycle of the extended-range electric vehicle is improved.

    本发明涉及的一种增程式电动汽车的整车能量管理方法,涉及混动汽车能量管理技术领域。本发明通过车辆的运行数据,环境信息,驾驶员驾驶风格等将车辆的目标行程切分成单独的运行片段,并对各运行片段的整车需求功率及行驶时间进行估算。以行程中燃料消耗量最少为目标,利用优化算法对车辆行驶过程中各运行片段增程器的发电功率基准进行规划,并基于整车瞬时需求功率对增程器的发电功率进行实时修正,最终实现了行程中增程器发电功率与整车需求功率之间稳态与瞬态的跟随。本发明在燃料消耗量较低的基础上降低了动力电池的充放电次数,延长了动力电池的寿命,提高了增程式电动汽车全生命周期的运行经济性。


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    Title :

    Whole vehicle energy management method for extended-range electric vehicle


    Additional title:

    一种增程式电动汽车的整车能量管理方法


    Contributors:
    ZHAO TONGJUN (author) / BI YANKUN (author) / CHEN QIULIN (author) / LANG WENSONG (author)

    Publication date :

    2023-11-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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