The invention discloses an extended range electric vehicle energy management control method based on multi-objective optimization, which comprises the following steps of: establishing a multi-working-point energy control strategy: respectively selecting a working point when an engine is in a light load, a medium load and a high load, and respectively setting engine output powers corresponding to the three working points as P1, P2 and P3; setting two battery SOC trigger points and two vehicle speed trigger points, switching working points of an engine according to different power battery SOC values and the current vehicle speed value, and performing energy distribution on the whole vehicle under different loads; performing multi-objective optimization on the output power of the working point of the engine by adopting a genetic algorithm of non-dominated sorting with an elitist strategy; introducing the optimized working point parameters into an original multi-working-point control strategy, and the purpose of better fuel oil and emission performance is achieved.

    本发明公开了一种基于多目标优化的增程式电动汽车能量管理控制方法,包括以下步骤:建立多工作点能量控制策略:在发动机处于轻、中、高负荷时各选取一个工作点,三个工作点所对应的发动机输出功率分别为P1、P2、P3;设定两个电池SOC触发点及两个车速触发点,根据不同的动力电池SOC值和当前的车速值,对发动机的工作点进行切换,在不同的负荷下对整车进行能量分配;采用采用带精英策略的非支配排序的遗传算法对发动机工作点输出功率进行多目标优化;将优化后的工作点参数,带入到原有的多工作点控制策略中,已达到燃油和排放性能更优的目的。


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    Title :

    Extended range electric vehicle energy management control method based on intelligent optimization


    Additional title:

    一种基于智能优化的增程式电动汽车能量管理控制方法


    Contributors:
    MIN HAITAO (author) / LUO XIANG (author)

    Publication date :

    2021-07-13


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



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