Brake and suspension integrated anti-pitching structure and control method

Abstract

The invention discloses a brake and suspension integrated anti-pitching structure, which comprises an air filter, wherein the air filter is connected with an air compressor through a pipeline, the aircompressor is connected with an air reservoir through a pipeline, the air reservoir is connected with an air dryer through a pipeline, the air dryer is connected with a four-loop protection valve through a pipeline, the four-loop protection valve is connected with a manual control valve and a vacuum booster through pipelines, the vacuum booster is driven by a brake pedal, the four-loop protectionvalve is connected with a brake, and the brake is connected with an air suspension. On the basis of an existing air suspension and pneumatic braking system, an air path and a corresponding electromagnetic valve are additionally arranged, integrated control over pneumatic braking and the air suspension is achieved, the structure is simple, and implementation is easy. The rigidity of an air springat the rear wheel is enhanced in the starting process, the rigidity of an air spring at the front wheel is enhanced in the braking process, a front shock absorber and a rear shock absorber are conducted at the same time, and the phenomena of downward pressing and upward lifting of a vehicle head are effectively restrained.

Description

technical field [0001] The invention relates to the technical field of suspension systems, in particular to a braking and suspension integrated anti-pitch structure and a control method. Background technique [0002] With the development of the automobile industry, people have higher and higher requirements on the performance of automobiles, among which the requirements on the suspension are mainly to improve the comfort of the ride while taking into account the stability of the operation. In passive suspension technology, the anti-roll performance of the vehicle is often improved by increasing the stiffness of the suspension or installing a stabilizer bar, and the pitch of the vehicle when starting and braking is improved by increasing the stiffness of the suspension, while the higher Suspension stiffness will undoubtedly make the suspension stiffer, which will damage the ride comfort of the vehicle; on the contrary, if a suspension with low roll stiffness and pitch stiffne...

AI Technical Summary

Problems solved by technology

In recent years, some researchers have proposed to change the interconnection state of the air spring in the air suspension to achieve both ride comfort and operational stability of the vehicle. The pitch and roll performance of the vehicle is improved, but due to the fixed interconnection volume of the elastic elements, the improvement of the vehicle performance is limited

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