The invention belongs to the field of vehicle suspensions, and particularly relates to an inflation and deflation system, an oil gas suspension system capable of automatically adjusting pressure and a pressure adjusting method.The inflation and deflation system comprises an air supply device, a first oil source mechanism, a second oil source mechanism and a valve assembly, the air supply device comprises an oil cavity and an air cavity, and an oil discharge port of the oil cavity of the air supply device is provided with a first control valve; a second control valve and a third control valve which are connected in series are arranged at an air vent of an air cavity of the air supply device; the oil conveying end of the first oil source mechanism is connected with an oil liquid cavity of the air supply device; the first output end of the valve assembly is connected with the third control valve, and the second output end of the valve assembly is connected with the first control valve and the second control valve. The oil conveying end of the second oil source mechanism is connected with the input end of the valve assembly. The problem that the compressible stroke of a double-cavity energy accumulator is insufficient when a vehicle is heavy-loaded is solved; by changing the rigidity characteristic of the hydro-pneumatic suspension when the vehicle is heavy-loaded, the problem that the rigidity of the hydro-pneumatic suspension is too large under the heavy-load working condition is solved, and the comfort of the vehicle is improved.

    本发明属于车辆悬架领域,具体涉及一种充放气系统、可自动调压的油气悬架系统及调压方法,充放气系统包括补气装置、第一油源机构、第二油源机构和阀组件,补气装置包括油液腔和气腔,补气装置的油液腔的卸油口设有第一控制阀,补气装置的气腔的通气口设有相互串联的第二控制阀和第三控制阀;第一油源机构的输油端与补气装置的油液腔相连接;阀组件的第一输出端与第三控制阀连接,阀组件的第二输出端分别与第一控制阀和第二控制阀连接;第二油源机构的输油端与阀组件的输入端连接。本发明解决双腔蓄能器在车辆重载时的可压缩行程不足的问题;通过改变油气悬架在车辆重载时的刚度特性,解决油气悬架在重载工况下刚度过大的问题,提高车辆的舒适性。


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    Title :

    Inflation and deflation system, hydro-pneumatic suspension system capable of automatically regulating pressure and pressure regulating method


    Additional title:

    充放气系统、可自动调压的油气悬架系统及调压方法


    Contributors:
    FENG HANDUI (author) / MIAO TIANFENG (author) / WANG YAN (author) / GE CHAO (author) / HUANG HANSHENG (author) / DONG LEI (author) / CHEN CHENG (author)

    Publication date :

    2023-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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