The invention relates to a vehicle rear axle centering system which comprises a high-pressure energy accumulator, a low-pressure energy accumulator, an oil tank, a steering centering cylinder, a switching valve and a pressure limiting valve, the switching valve is provided with a first oil port, a second oil port and a third oil port, the first oil port is connected with the high-pressure energy accumulator, the third oil port is connected with the low-pressure energy accumulator, and the second oil port is connected with the second oil port. The second oil port is connected with the steering centering cylinder, the steering centering cylinder body comprises two oil inlets and an oil return port, and the oil return port of the steering centering cylinder is connected with the oil tank; energy is recycled and utilized through the low-pressure energy accumulator, in addition, the low-pressure energy accumulator enables a floating piston of the steering centering cylinder to move along with a piston rod of the steering centering cylinder in real time, and the rear axle centering locking speed is increased; the rigidity of the vehicle rear axle centering hydraulic system is improved through the high-pressure energy accumulator, the reliability of the vehicle rear axle centering hydraulic system is improved, the high-pressure energy accumulator can effectively absorb instantaneous excitation of the road surface, and the fatigue influence of the instantaneous excitation of the road surface on structural parts is prevented.

    本发明涉及一种车辆后桥对中系统,包括高压蓄能器、低压蓄能器、油箱、转向对中缸、切换阀和限压阀,所述切换阀设有第一油口、第二油口和第三油口,所述第一油口与所述高压蓄能器连接,所述第三油口与所述低压蓄能器连接,所述第二油口与所述转向对中缸连接,所述转向对中缸体包括两个进油口和一个回油口,所述转向对中缸回油口与所述油箱连接;通过低压蓄能器对能量回收与利用,此外低压蓄能器使转向对中缸的浮动活塞即时跟随转向对中缸的活塞杆移动,提高了后桥对中锁定速度;高压蓄能器提高车辆后桥对中液压系统的刚度,提高了车辆后桥对中液压系统的可靠性,高压蓄能器可有效吸收路面瞬时激励,防止了路面瞬时激励对结构件造成的疲劳影响。


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    Title :

    Vehicle rear axle centering system


    Additional title:

    一种车辆后桥对中系统


    Contributors:
    XIAO TIANBO (author) / NIE WENFU (author) / LIU CHANGQING (author) / WANG LEI (author)

    Publication date :

    2023-04-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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