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Air spring for adjusting static stiffness and dynamic stiffness by filler and floating throttle plate

An air spring and throttling adjustment technology, which is applied in the direction of springs, spring/shock absorbers, gas shock absorbers, etc., can solve the problem that the adjustment of stiffness is not continuous, so as to achieve smooth and continuous adjustment and adjust the stiffness characteristic curve more reasonable and controllability, the effect of improving the dynamic stiffness adjustment ability

Inactive Publication Date: 2012-04-04
杨洁
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  • Application Information

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Problems solved by technology

This adjustment of stiffness is not continuous

Method used

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  • Air spring for adjusting static stiffness and dynamic stiffness by filler and floating throttle plate
  • Air spring for adjusting static stiffness and dynamic stiffness by filler and floating throttle plate

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Embodiment Construction

[0009] The specific embodiment of the present invention is: its static stiffness adjustment method is: when the air spring is assembled, first fill the cavity of the lower mounting seat 5 with a filler 7 whose volume has been determined through calculation or testing, and the filled filler 7 occupies the volume of the same volume of compressed air, which increases the static stiffness of the air spring; on the contrary, taking out part of the filled filler 7 increases the volume of the same volume of compressed air, which relatively reduces the static stiffness of the air spring ; Its dynamic stiffness adjustment method is: when the vehicle is stationary and in a relatively stable running state, the vehicle body does not move up and down much, and the airflow flowing through the inner ring throttle hole on the throttle adjustment plate 4 is not much, and its upper and lower surfaces have no pressure The pressure difference or the pressure difference is not large, and the thrott...

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Abstract

The air spring in the existing automobile suspension system plays an important role in improving the smoothness and the operation stability of vehicles and protecting roads and goods. In order to effectively adjust the dynamic stiffness and the static stiffness of the air spring, people adopt connection of a main air chamber and an auxiliary air chamber and realize the adjustment by change of a throttle valve on a channel. The control signal for adjusting the stiffness is acquired by multiple paths of sensors and is transmitted to a computer for processing, then an action instruction is sent and then the stiffness of the air spring is adjusted. But the control mode has large response time lag and high cost. Aiming at the difficulty, the invention studies a novel air spring for adjusting the dynamic stiffness and the static stiffness by self-adaptive pressure difference. The novel air spring achieves the purpose of adjusting the stiffness continuously by directly utilizing a pressure signal in an air bag to control a throttle pressure difference on the main air chamber and the auxiliary air chamber, and achieves the purpose of weakening the impact of convex blocks to vehicle bodies by utilizing reverse impact pressure difference of the main air chamber and the auxiliary air chamber to control the throttle valve. In the air spring, the structure is simple, the response is fast and reliable, the cost is low and the static rigidity also can be adjusted conveniently.

Description

1. Technical field: [0001] The invention relates to an air spring which is used for a vehicle air suspension to adjust the static stiffness by a filler and adjust the dynamic stiffness by a floating throttling plate. This air spring is especially suitable for passenger buses, city public buses, freight vehicles, as well as rail transit vehicles, special vehicles and high-end cars. 2. Background technology: [0002] In order to improve the ride comfort of the car, improve ride comfort and handling stability, and reduce vehicle damage to roads and goods, air springs are widely used in the suspension systems of their transport vehicles in developed countries. In recent years, my country is also vigorously promoting and mandating the use of air springs. In the continuous development of air spring technology, in order to further improve the stiffness adjustment characteristics of air spring, so that it is more suitable for people's continuous improvement of vehicle performance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/04F16F9/34F16F9/44F16F9/512
Inventor 杨洁
Owner 杨洁
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