The invention discloses a multi-gear power constant-voltage driving mode method for a hybrid vehicle, which comprises the following steps: when UDC driving enters, carrying out condition judgment on vehicle speed and fuel quantity of the vehicle, and matching a pre-control process strategy; according to the matched pre-control process strategy, UDC running power process control is carried out, and HCU power control is implemented; and when UDC driving quits, the vehicle is in a UDC power generation driving mode, state judgment is performed on the vehicle, and a corresponding strategy is matched according to a judgment result. According to the method, under the condition that the battery capacity of the hybrid electric vehicle is limited, a high-voltage battery does not need to be involved, and a multi-gear power constant-voltage driving mode that driving power and generated power are instantly used is controlled through power. The utilization rate of the hybrid power system is improved, and the robustness of the whole vehicle system is also improved.

    本发明公开了一种混动汽车多档功率恒压行车模式方法包括,当UDC行车进入,对车辆进行车速与燃油量的条件判断,匹配预控制过程策略;根据匹配的预控制过程策略,进行UDC行车功率过程控制,并实施HCU功率控制;当UDC行车退出,车辆处于UDC发电行车模式,对车辆进行状态判断,并根据判断结果匹配相应策略。本方法可以在混动汽车在电池能力受限下,无需高压电池介入,通过功率控制驱动功率和发电功率即发即用的多档功率恒压行车模式。提高了混合动力系统利用率、也提高了整车系统鲁棒性。


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    Title :

    Multi-gear power constant-voltage driving mode method for hybrid electric vehicle


    Additional title:

    一种混动汽车多档功率恒压行车模式方法


    Contributors:
    ZHOU YAFEN (author) / QIN XIN (author) / WANG DONG (author) / CAO YU (author) / LYU JUNCHENG (author)

    Publication date :

    2024-03-15


    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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