The invention provides a multi-motor variable-speed driving system for engineering machinery and a control method thereof, a speed change device comprises a high-voltage cabinet (2), one end of the high-voltage cabinet (2) is connected with an energy source (1) and an energy storage device (6) to obtain driving energy, and the other end of the high-voltage cabinet (2) is connected with a hydraulic load (5) through a driving system (4); the system is characterized by further comprising a whole vehicle control unit (3), and the whole vehicle control unit (3) is in signal connection with the energy source (1), the high-voltage cabinet (2), the driving system (4) and the hydraulic load (5); according to different actual working conditions, a plurality of working modes exist, the working conditions with small power requirements do not need to be driven by all the motors, and part of the motors can generate electricity. Therefore, energy waste is reduced, and energy recovery can be realized.

    本发明提供一种用于工程机械的多电机变速驱动系统及其控制方法,所述变速装置包括高压柜(2),所述高压柜(2)一端分别连接能量源(1)和储能装置(6)以获得驱动能源,另一端通过驱动系统(4)连接液压负载(5);其特征在于:还包括整车控制单元(3),所述整车控制单元(3)分别与能量源(1)、高压柜(2)、驱动系统(4)及液压负载(5)信号连接;根据实际工况的不同有多个工作模式,功率需求较小的工况不需要全部电机进行驱动,可以让部分电机进行发电。这样不仅减少了能源浪费,还可以实现能量回收。


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    Title :

    Multi-motor variable speed driving system for engineering machinery and control method of multi-motor variable speed driving system


    Additional title:

    一种用于工程机械的多电机变速驱动系统及其控制方法


    Contributors:
    JIANG LIMING (author) / SHI FENGLI (author)

    Publication date :

    2024-03-29


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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