The invention discloses a hybrid electric vehicle and a control method thereof. The hybrid electric vehicle comprises an engine, a planetary gear set, double clutches, a brake set, a motor and a power battery. The planetary gear set comprises a sun gear, a planetary gear and an outer gear ring; the brake group comprises a first brake for braking the sun gear, a second brake for braking the planetary gear and a third brake for braking the outer gear ring; the engine is rigidly connected with the sun gear through a connecting shaft; double clutches are arranged in the motor, the first clutch is connected with the planetary gear, and the second clutch is connected with the outer gear ring; the outer gear ring is connected with the output end; under the cooperation of the braking set and the double clutches, the engine drives the planetary gear set to do work outwards in the highest thermal efficiency interval, and mechanical energy of the engine is converted into kinetic energy of the hybrid electric vehicle for driving; the motor serves as a generator to assist in adjusting the engine to work in the highest thermal efficiency interval, and meanwhile surplus mechanical energy of the engine is converted into electric energy to charge a power battery.

    本发明公开了一种混合动力汽车及其控制方法,包括:发动机、行星齿轮组、双离合器、制动组、电机和动力电池;行星齿轮组包含太阳齿轮、行星齿轮和外齿圈;制动组包含制动太阳齿轮的第一制动器、制动行星齿轮的第二制动器和制动外齿圈的第三制动器;发动机通过连接轴刚性连接太阳齿轮;电机内置双离合器,其中,第一离合器连接行星齿轮,第二离合器连接外齿圈;外齿圈连接输出端;在制动组与双离合器的配合下,发动机在最高热效率区间驱动行星齿轮组对外做功,将发动机的机械能转换成混合动力汽车的动能以供行驶;并且电机充当发电机协助调节发动机在最高热效率区间工作的同时,将发动机富余的机械能转换成电能为动力电池充电。


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    Title :

    Hybrid electric vehicle and control method thereof


    Additional title:

    一种混合动力汽车及其控制方法


    Contributors:
    LIU YONGHAO (author) / XIANG YU (author) / ZHANG LEI (author)

    Publication date :

    2024-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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