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Coaxial integrated air spring shock absorber with controllable stiffness and damping linkage

An air spring, one-piece technology, applied in the direction of spring/shock absorber, shock absorber, spring, etc., can solve the problems of high efficiency, practicality, convenience, many parts of shock absorber control mechanism, poor stability, etc., to achieve Improve self-adaptive ability, simplify structure and improve processing effect

Inactive Publication Date: 2011-12-14
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of shock absorber control mechanism has many parts and poor stability.
None of the above methods can meet the requirements of high efficiency, practicality and convenience.

Method used

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  • Coaxial integrated air spring shock absorber with controllable stiffness and damping linkage
  • Coaxial integrated air spring shock absorber with controllable stiffness and damping linkage
  • Coaxial integrated air spring shock absorber with controllable stiffness and damping linkage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] exist figure 1 Among them, the upper sealing plate 5 and the cage 1 securely connect the stepping motor 2 to the main body of the air spring shock absorber. The rotating shaft 13 is sleeved in the piston rod 14, and connects the spool 12 and the output shaft of the stepping motor 2. The stepper motor drives the rotating shaft 13 and the spool 12 to rotate under the control of the ECU, changing the number of small holes overlapping the spool and the piston rod, thereby changing the damping force of the shock absorber. The floating piston 10, the lower sealing cover 9, and the inner tube 8 constitute the main air chamber of the air spring, which is also the floating air chamber of the shock absorber. The inner tube 8 and the outer tube 7 form an annular air channel, and the outer tube 7 and the rubber air bag 6 form a secondary air chamber of the air spring. The piston assembly 11 divides the hydraulic chamber into a recovery chamber and a compression chamber. When the ...

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Abstract

The invention discloses a coaxial integrated air spring absorber with linkage and controllable rigidity and damping, belonging to the technical field of vehicle active suspensions. The coaxial integrated air spring absorber mainly comprises an air spring, a hydraulic absorber main body and a stepping motor assembly, a compression air inflation assembly and an air pressure sensor as well as an airspring deflation assembly and an electromagnetic valve. The air spring and the hydraulic absorber are of a coaxial integrated structure which has compacter structure and is convenient to be installedon a vehicle; the air spring and the absorber realize the associated change of damping and rigidity through a shared air chamber, thereby automatically balancing internal acting force conflict of theair spring and the absorber and being capable of alleviating the shock and violent vibration between a frame and wheels by utilizing the compressibility of air medium and the fluidity of oil medium; and the absorber is not provided with a bottom valve assembly, and a piston assembly comprises a recovery damper valve and a compression damper valve, therefore the structure of the absorber is simplified.

Description

technical field [0001] The invention relates to a vehicle active suspension shock absorber, in particular to a coaxial integrated air spring shock absorber with automatic continuously variable stiffness and adjustable multi-stage damping. When the vehicle is running, the air spring stiffness and shock absorber damping are adjusted by the electronic controller and stepper motor according to the road, load and speed obtained by the driving state sensor, so as to meet the requirements of driving comfort and handling stability under different driving conditions. Background technique [0002] In order to improve the ride comfort and ride comfort of automobiles, more and more vehicles begin to adopt air suspension. As the elastic element of the air suspension, the air spring uses the compressibility of the gas to achieve its elastic effect. Compared with other elastic elements, it has the characteristics of adjustable spring coefficient, adjustable load capacity, easy height contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/50
Inventor 江浩斌杜滢君陈龙胡隽秀
Owner JIANGSU UNIV
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