The invention discloses a hydro-pneumatic suspension system, a vehicle and a control method of the hydro-pneumatic suspension system. The hydro-pneumatic suspension system comprises a hydraulic pump and at least two suspension oil cylinder sets; the hydraulic pump is connected with an axle pressure oil path and an axle oil return path; each suspension oil cylinder set comprises a left suspension oil cylinder arranged on the left side of the corresponding axle and a right suspension oil cylinder arranged on the right side of the corresponding axle; the left suspension oil cylinders and the right suspension oil cylinders are each provided with a suspension control valve set; and each suspension control valve set comprises a switching control valve block and a switch valve block, wherein theswitching control valve block can connect a rod cavity of the corresponding suspension oil cylinder with the axle pressure oil way and the axle oil return way in a switching mode, and the switch valveblock can connect and disconnect a rodless cavity of the corresponding suspension oil cylinder with a rod cavity of another suspension oil cylinder in the same set. Independent control over the suspension oil cylinders, synchronous control over the coaxial suspension oil cylinders, synchronous control over the suspension oil cylinders on the same side and whole vehicle lifting adjustment can be rapidly achieved, and various driving state requirements can be met.
本发明公开了一种油气悬挂系统、车辆及油气悬挂系统的控制方法,油气悬挂系统包括液压泵和至少两个悬挂油缸组;液压泵与车桥压力油路和车桥回油路连接;每个悬挂油缸组包括设置在相应车桥左侧的左悬挂油缸和设置相应车桥右侧的右悬挂油缸;左悬挂油缸、右悬挂油缸分别配置有各自的悬挂控制阀组;悬挂控制阀组包括:能够将相应悬挂油缸的有杆腔与车桥压力油路、车桥回油路切换连接的切换控制阀块和能够将相应悬挂油缸的无杆腔与同组内另一悬挂油缸的有杆腔连通和关断的开关阀块。本发明能够快速实现悬挂油缸独立控制、同轴悬挂油缸同步控制、同侧悬挂油缸同步控制以及整车升降调节,能够满足各种行驶状态需求。
Hydro-pneumatic suspension system, vehicle and control method of hydro-pneumatic suspension system
一种油气悬挂系统、车辆及油气悬挂系统的控制方法
2020-06-19
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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