Air spring for regulating static rigidity through volume and regulating dynamic rigidity through auxiliary air chamber

Abstract

An air spring in an automobile suspension system is critical to improving the smoothness and the comfort of a vehicle, protecting a road and goods, and restricting overload. In a passive air suspension system which is commonly used in the prior art, because the matching between the static rigidity of the air spring and the whole vehicle is not reasonable and individuation regulation cannot be carried out, the side swinging phenomenon of the vehicle in running is quite serious, so that a passenger and a driver are dizzy and uncomfortable, and the comfort of the passenger and the safe driving of the driver are badly affected. The invention relates to a composite air spring which is occupied by an inner volume of an airbag and is impact-reduced by an auxiliary air chamber specially developed to solve the difficult problem. The air spring regulates the static rigidity through the volume, and solves the difficult problem that the rigidity of the air spring which is selected according to a standard is not matched with an actual requirement and cannot be regulated. The air spring regulates the dynamic rigidity through the auxiliary air chamber, can automatically reduce the dynamic rigidity when the vehicle runs and encounters a bulge on a road surface, so that the impact of the bulge on the vehicle body is reduced, and the comfort of the vehicle can be improved.

Description

1. Technical field: [0001] The invention relates to an air spring of a passive air suspension for vehicles. Its static stiffness is adjusted by a built-in piston, and its dynamic stiffness is adjusted by a fixed orifice on an auxiliary air chamber. Reduce its dynamic stiffness and reduce the impact of bumps on the body. This kind of air spring is especially suitable for passenger buses, urban public buses, as well as large freight trucks and rail transit vehicles, as well as passive air suspension systems and oil-pneumatic suspension systems for special vehicles. 2. Background technology: [0002] In order to improve the ride comfort of the car, improve the comfort of the ride, and reduce the damage of the vehicle to the road and goods, developed countries have widely used air springs in the suspension systems of their transport vehicles. In recent years, my country is also vigorously promoting and mandating the use of air springs. In the continuous development of air spri...

AI Technical Summary

Problems solved by technology

In the passive air suspension system commonly used at present, due to the low anti-roll stiffness of the air spring, the side swing phenomenon of the vehicle during operation is relatively serious, which often causes dizziness and discomfort to the occupants and drivers, seriously affecting Occupant comfort and driver safe driving

One of the main reasons for this phenomenon is that the static stiffness of the air spring cannot be reasonably matched and individually adjusted according to the parameters of the vehicle

The second is: the dynamic stiffness of the air spring cannot be adjusted with the dynamic load

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