The invention relates to the technical field of automobile power systems, in particular to an engineering machinery vehicle driving system and a driving method.The engineering machinery vehicle driving system comprises a pure electric driving module, the pure electric driving module comprises a planet row, and a sun gear of the planet row is connected with an EM1 motor through a first gear meshing pair; a gear ring of the planet row is connected with an EM2 motor through a second gear meshing pair, and power of the EM1 motor and power of the EM2 motor are output through a planet carrier of the planet row after being coupled through the planet row. The hydraulic oil pump is connected with the EM1 motor through a third gear meshing pair and the first gear meshing pair, and the EM1 motor drives the hydraulic oil pump to work. The system can solve the problem of motor stalling in the working process of pure electric engineering machinery; the range extending module can be expanded to reduce the electric quantity of the battery and save the cost; compared with a traditional internal combustion engine model, a hydraulic torque converter can be omitted, and the mechanical efficiency is improved.

    本发明涉及汽车动力系统技术领域,具体是一种工程机械车辆驱动系统及驱动方法,包括纯电动驱动模块,所述纯电动驱动模块包括一个行星排,所述行星排的太阳轮通过第一齿轮啮合副与EM1电机连接,所述行星排的齿圈通过第二齿轮啮合副与EM2电机连接,所述EM1电机与所述EM2电机的动力经所述行星排耦合后通过所述行星排的行星架输出;还包括液压油泵,所述液压油泵通过第三齿轮啮合副和所述第一齿轮啮合副与所述EM1电机相连,并通过所述EM1电机驱动所述液压油泵工作。本系统可解决纯电动工程机械工作过程中电机堵转的情况;可拓展增程模块,实现电池电量降低,节省成本;相比于传统内燃机机型,可以取消液力变矩器,提高机械效率。


    Access

    Download


    Export, share and cite



    Title :

    Engineering machinery vehicle driving system and driving method


    Additional title:

    一种工程机械车辆驱动系统及驱动方法


    Contributors:
    TANG SHIFA (author) / ZHI FENG (author) / WANG LONG (author) / SUN YAWEI (author) / CUI FENG (author)

    Publication date :

    2022-04-29


    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



    Engineering machinery running driving system and engineering machinery

    XIONG WEIMIN / CHEN CHANG / WAN LIANG | European Patent Office | 2024

    Free access

    Engineering machinery steering driving wheel system and engineering machinery

    ZHANG JIAXIN / DING TING / CHEN YONGJIANG | European Patent Office | 2023

    Free access

    Hydraulic driving system and engineering machinery

    CHENG DUWANG / LIU YONGPING / JIANG HAOBO | European Patent Office | 2025

    Free access

    Engineering machinery driving system and paver

    REN MAOFA / ZHANG YONG / LIU ZHEN | European Patent Office | 2021

    Free access