Suspension valve group, hydro-pneumatic suspension control system, hydro-pneumatic suspension control method, and vehicle

A technology of oil and gas suspension and control system, applied in the field of vehicle engineering, can solve problems such as difficulty in realizing lifting and lowering operation, and achieve the effect of ensuring system sealing, avoiding system pressure, and increasing system pressure

Active Publication Date: 2016-03-02
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is that it is difficult to realize the lifting operation when the suspension oil cylinder is in a rigid state in the existing oil-pneumatic suspension control system and method

Method used

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  • Suspension valve group, hydro-pneumatic suspension control system, hydro-pneumatic suspension control method, and vehicle
  • Suspension valve group, hydro-pneumatic suspension control system, hydro-pneumatic suspension control method, and vehicle
  • Suspension valve group, hydro-pneumatic suspension control system, hydro-pneumatic suspension control method, and vehicle

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Embodiment Construction

[0046] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0047] refer to figure 2 As shown, the oil-pneumatic suspension control system according to a specific embodiment of the present invention includes: a left suspension cylinder 21 and a right suspension cylinder 22 symmetrically arranged on both sides of the axle 1; a left accumulator 31 and a right energy storage cylinder device 32, the oil chamber of the left accumulator 31 communicates with the rod chamber of the right suspension cylinder 22 and can selectively communicate with the rodless chamber of the left suspension cylinder 21, and the right accumulator 32 is connected to the rod cavity of the left suspension cylinder 21 and can be selectively connected...

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Abstract

The invention relates to the field of vehicle engineering, and discloses a suspension valve group, a hydro-pneumatic suspension control system, a hydro-pneumatic suspension control method, and a vehicle. The hydro-pneumatic suspension control system comprises suspension cylinders (2) which are symmetrically arranged, a left accumulator (31) and a right accumulator (32), and an oil feeding pipe (4) and an oil returning pipe (5). The oil cavities of the left accumulator (31) and the right accumulator (32) are respectively communicated with the rod chambers of the suspension cylinders at the opposite sides, and can be selectively communicated with the rodless chambers of the suspension cylinders (21) at the same sides so as to selectively switch a hydro-pneumatic suspension to a rigid or flexible state. The rodless chambers of the suspension cylinders (2) can be selectively communicated with the oil feeding pipe (4) or the oil returning pipe (5). When the hydro-pneumatic suspension is selectively switched to the rigid state, the rod chamber of at least one suspension cylinder (2) can be selectively communicated with the oil returning pipe (5). By adopting the hydro-pneumatic suspension control system and the hydro-pneumatic suspension control method of the invention, lifting operation can be implemented in the rigid state.

Description

technical field [0001] The invention relates to the field of vehicle engineering, in particular to an oil-pneumatic suspension control system and method. In addition, the present invention also relates to a suspension valve group and a vehicle including the above-mentioned hydropneumatic suspension control system. Background technique [0002] Suspension is a general term for all force-transmitting connection devices between the frame (or load-bearing body) and the axle, and is used to transmit various forces acting on the wheels on the road surface and the moments formed by these forces to the frame (or load-bearing) type body) to ensure the normal running of the vehicle. [0003] Among them, the oil-pneumatic suspension technology that uses accumulators, suspension oil cylinders, and suspension valve groups that control the state and action of the suspension can well meet the requirements due to its superior nonlinear elastic characteristics and good damping performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G21/073B60G17/04B60G17/015
CPCB60G17/0152B60G17/0416B60G21/073
Inventor 郭堃刘学俭
Owner ZOOMLION HEAVY IND CO LTD
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