A special shock absorber for electronically controlled air suspension

Abstract

The invention relates to a shock absorber special for an electronic control pneumatic suspension. The shock absorber comprises a working cylinder, a piston rod is arranged in the working cylinder in a penetrating mode and sleeved with a piston provided with a circulating valve plate and a rebounding valve plate, the piston is also located in the working cylinder, an oil storage cylinder is sleeved with the piston rod and internally provided with a signal sensing device of a vehicle height control system, the upper end of the working cylinder is provided with a connecting screw used for being connected with a vehicle body or a vehicle frame, a valve body is connected to the lower end of the working cylinder, and the lower end of the valve body is connected with a connecting ring used for being connected with a wheel or an axle through a compression valve. The shock absorber has the advantages that the boundary dimension of the shock absorber is reduced, the shock absorber can be conveniently installed on a small passenger car accordingly, and particularly a pneumatic spring and the shock absorber can be assembled in a sleeved mode; the problem that the signal sensing device of the vehicle height control system is difficult to arrange is solved; the compression resistance of the shock absorber is adjusted through changes in the pressure in the pneumatic spring; a common shock absorber in a conventional electronic control pneumatic suspension system is replaced, and an angular displacement sensor in a traditional scheme is eliminated. The system structure is simple, the manufacturing cost is reduced, and the shock absorber is convenient to install and use.

Description

technical field [0001] The invention relates to a shock absorber, an important assembly in the automobile suspension system, in particular to a special shock absorber for electronically controlled air suspension. Background technique [0002] At present, most of the shock absorbers installed in air suspension systems at home and abroad are double-tube type oil storage tank external shock absorbers. The control of the height of the car body is generally realized by a mechanical height valve control valve. Even if there are some electronically controlled air suspensions, including some high-end passenger car air suspensions, their displacement sensors are all independent angular displacement sensors. [0003] However, for small passenger cars, the space around the steering wheel is very tight, and the installation position and connection method of ordinary angular displacement sensors are relatively difficult, and the manufacturing cost is relatively high. [0004] In additi...

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Problems solved by technology

[0003] However, for small passenger cars, the space around the steering wheel is very tight, the installation position and connection method of ordinary angular displacement sensors are relatively difficult, and the manufacturing cost is relatively high

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