The invention relates to the technical field of vehicles, in particular to a vehicle drive axle control method, a vehicle drive axle control system and a vehicle. A first power disconnecting mechanism is arranged to disconnect input power of a main speed reducer of one of a middle drive axle and a rear drive axle, and a second power mechanism is arranged to disconnect or connect input power of a wheel end of the one. Whether the gearbox is in the preset gear or not is judged based on the current state information of the vehicle in the fuel-saving mode, and then the first power disconnection mechanism and the second power disconnection mechanism are controlled based on the judgment result. Therefore, transmission of one of the middle drive axle and the rear drive axle can be cut off, the one is converted into a follow-up bearing axle, and the other one transmits power. Meanwhile, due to the fact that the input power of the corresponding main speed reducer is cut off, friction and oil stirring energy loss generated by meshing of gears in the main speed reducer are avoided, and therefore the transmission efficiency is improved, the energy loss is reduced, and the oil consumption of the whole vehicle is reduced.

    本申请涉及车辆技术领域,特别是涉及一种车辆驱动桥的控制方法、车辆驱动桥的控制系统及车辆。通过设置第一动力断开机构,以断开中驱动桥和后驱动桥中一者的主减速器的输入动力,通过设置第二动力机构,以用于断开或接合该一者的轮端的输入动力。通过在节油模式下基于车辆的当前状态信息,判断变速箱是否处于预设挡位,进而基于判断结果对第一动力断开机构和第二动力断开机构进行控制。由此,可以断开中驱动桥和后驱动桥中一者的传动,使该一者转变为随动承载桥,另一者传递动力。同时,由于对应的主减速器的输入动力断开,使得该主减速器内齿轮啮合产生的摩擦和搅油能量损失得以避免,从而提高了传动效率、减少了能量损失,降低了整车油耗。


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    Title :

    Vehicle drive axle control method, vehicle drive axle control system and vehicle


    Additional title:

    车辆驱动桥的控制方法、车辆驱动桥的控制系统及车辆


    Contributors:
    QI CHAO (author) / ZHANG ZHI'OU (author) / ZOU BENHUI (author) / HUANG GUANGCHAO (author) / FAN YONGJUN (author) / GAO JIANGPENG (author) / REN SHUBO (author)

    Publication date :

    2023-09-01


    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



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