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Four-gear air spring with adjustable volume and method for controlling four-gear air spring

An air spring and volume technology, applied in elastic suspension, gas shock absorber, suspension, etc., can solve the problems of difficult to obtain a look-up table, road environment variability, etc., to overcome local extremes, improve local extremes, good reliability

Inactive Publication Date: 2013-08-14
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the road environment is variable and it is difficult to obtain a complete lookup table

Method used

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  • Four-gear air spring with adjustable volume and method for controlling four-gear air spring
  • Four-gear air spring with adjustable volume and method for controlling four-gear air spring
  • Four-gear air spring with adjustable volume and method for controlling four-gear air spring

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Embodiment Construction

[0024] The structure of the four-speed volume-adjustable air spring of the present invention is as follows: figure 1 As shown, the closed air bag body 5, the first auxiliary air chamber and the second auxiliary air chamber 2 are included, the top of the air bag body 5 is communicated with the main air pipe 7, and the bottom of the air bag body 5 is respectively connected to the first auxiliary air chamber through the first through hole. The chamber 1 communicates with the second secondary air chamber 2 through the second through hole, the main solenoid valve 6 is installed on the main air pipe, the first solenoid valve 3 is installed on the first through hole, and the second through hole is installed on the second through hole. Electromagnetic valve 4, the second secondary air chamber 2 has the same volume as the airbag body 5 when the working height is statically balanced, and the volume of the first auxiliary air chamber 1 is twice that of the airbag body 5.

[0025] A contr...

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Abstract

The invention discloses a four-gear air spring with an adjustable volume and a method for controlling the four-gear air spring. The four-gear air spring with the adjustable volume comprises a closed air bag body, a first auxiliary air chamber and a second auxiliary air chamber. The top of the air bag body is communicated with a main air tube, the lower side of the air bag body is communicated with the first auxiliary air chamber via a first through hole and is communicated with the second auxiliary air chamber via a second through hole, a main electromagnetic valve is mounted on the main air tube, a first electromagnetic valve is mounted on the first through hole, and a second electromagnetic valve is mounted on the second through hole. When the air spring is located at a static balance operational altitude, the volume of the second auxiliary air chamber is identical to that of the air bag body, and the volume of the first auxiliary air chamber is the double of that of the air bag body. The method for controlling the four-gear air spring mainly includes steps of measuring mechanical property curves; building and verifying models; optimizing programs; and executing the programs and the like.

Description

technical field [0001] The invention relates to a four-speed volume-adjustable air spring and a control method thereof, belonging to the technical field of vehicle suspension. Background technique [0002] The electronically controlled air spring suspension system has the advantages of low natural frequency, nonlinear characteristics, and controllable mechanical properties. It has been widely used in luxury passenger cars, high-end passenger cars and special vehicles. With the maturity and rapid development of electronic technology, automatic control technology and vehicle suspension technology, it is possible to develop an electronically controlled air spring suspension system with the active adjustment function of suspension elastic force. The active adjustment of suspension elastic force can be achieved by changing the static The volume of the internal cavity of the air spring at the equilibrium position is realized, and when the initial static load is the same, the inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/04B60G17/052
CPCF16F9/049
Inventor 袁春元王新彦
Owner JIANGSU UNIV OF SCI & TECH
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