The invention discloses an engine rotating speed control method and device for an extended-range hybrid vehicle, and the method comprises the steps: obtaining the rechargeable power of a battery pack in the vehicle, and taking a part of the rechargeable power of the battery pack as reserved basic power; the heating power of a heating film of the battery pack is obtained, and the reserved power is determined according to the reserved basic power and the heating power; and after the accelerator is loosened under the high-power driving working condition, the engine is requested to reduce the torque, and the generator generates negative torque through reserved power, so that the rotating speed of the engine is reduced. The problem that in the prior art, under the working condition that the charging and discharging power of a battery pack is extremely low, the accelerator loosening range extender flies at a high rotating speed after a driver drives with a large accelerator is solved.

    本发明公开了一种增程式混动车辆的发动机转速控制方法及装置,该方法包括:获取车辆当中的电池包的可充电功率,并将部分的电池包可充电功率作为预留基础功率;获取电池包的加热膜的加热功率,并根据预留基础功率和加热功率确定预留功率;在大功率行车工况松油门后,请求发动机进行扭矩下降,并通过预留功率使得发电机产生负向扭矩进而使发动机转速下降。本发明解决了现有技术中在电池包充放电功率极低工况下驾驶员大油门行车后的松油门增程器飞转速问题。


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    Title :

    Engine rotating speed control method and device for extended-range hybrid vehicle


    Additional title:

    一种增程式混动车辆的发动机转速控制方法及装置


    Contributors:
    TU PENGFEI (author) / KANG WENHUI (author) / SUN TIANLE (author) / WU BAIHE (author) / NING CHENGGANG (author) / WEI LI (author)

    Publication date :

    2024-12-27


    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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