The invention relates to the field of electric automobiles, and discloses an electric automobile brake energy recovery system and a control method, the electric automobile brake energy recovery systemcomprises a planetary gear assembly, a driving motor, an energy conversion part and an energy accumulator, the planetary gear assembly comprises a sun gear, a planetary gear, a planet carrier and a gear ring, the planet wheels surround the axis of the sun wheel and are externally meshed with the sun wheel, and the planet wheels are fixedly connected with the planet carrier and internally meshed with the gear ring; a power output shaft of the driving motor is fixedly connected with the sun gear; the energy conversion part is connected with a rotating shaft of the planet carrier and is used forcarrying out energy conversion between the planet carrier and the energy accumulator; and the energy accumulator is connected with the energy conversion part. Through the arrangement of the technicalscheme, energy recovery of the electric automobile in the braking process can be effectively improved, and the endurance mileage of comprehensive driving of the automobile is increased.

    本发明涉及电动汽车领域,公开了一种电动汽车制动能量回收系统及控制方法,其中,所述电动汽车制动能量回收系统包括行星齿轮组件、驱动电机、能量转换部件以及蓄能器,所述星齿轮组件包括太阳轮、行星轮、行星架以及齿圈,多个所述行星轮环绕所述太阳轮轴线与所述太阳轮外啮合,多个所述行星轮与所述行星架固定连接,并与所述齿圈内啮合;所述驱动电机的动力输出轴与所述太阳轮固定连接;所述能量转换部件与所述行星架的转轴连接,用于在所述行星架和蓄能器之间进行能量转换;所述蓄能器与所述能量转换部件连接。通过上述技术方案的设置,能够有效提升电动汽车在制动过程中的能量回收,提升车辆综合行驶的续航里程。


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    Title :

    Electric vehicle braking energy recovery system and control method


    Additional title:

    电动汽车制动能量回收系统及控制方法


    Contributors:
    FEI XIAOTAO (author) / CHANG LYU (author) / WANG DONGMING (author) / LIU DACHENG (author) / SHI HAIFENG (author) / WEN JIE (author) / SHI PINJIA (author) / LIU QIONGQIONG (author) / LIU XIAOYAN (author)

    Publication date :

    2020-11-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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