Air spring with variable rigidity and control system based on same

An air spring and control system technology, applied in the direction of spring, spring/shock absorber, gas shock absorber, etc., can solve the problem of occupying the interior space of the car, and achieve the goal of improving space utilization, good controllability and operational stability. Effect

Pending Publication Date: 2017-06-23
方盛车桥(苏州)有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Although this solution can achieve the purpose of changing the volume of the airbag, it needs to add an additional air chamber with a larger volume, which needs to occupy the space inside the car, and it does not explain under what circumstances to achieve the change of air spring stiffness and how to achieve this change

Method used

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  • Air spring with variable rigidity and control system based on same
  • Air spring with variable rigidity and control system based on same

Examples

Experimental program
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Effect test

Embodiment

[0031] Please refer to figure 1 , the present embodiment is a variable stiffness air spring 100, which includes an airbag 1, a piston 2, a top plate 3 fixed on the airbag 1, and an anti-collision buffer block 4 located in the airbag 1 and fixed on the top plate 3. An airbag air chamber is formed inside the airbag 1 , and an auxiliary air chamber and a solenoid valve 23 for cutting off or connecting the airbag air chamber and the auxiliary air chamber are arranged inside the piston 2 .

[0032] The inside of the piston 2 is provided with a hole 21 that penetrates up and down and communicates with the airbag chamber. The auxiliary air chamber includes a first auxiliary air chamber surrounded by the hole 21 and a second auxiliary air chamber surrounding the first auxiliary air chamber. Auxiliary chamber 22.

[0033] A communication port (not shown in the figure) connecting the first auxiliary air chamber and the second auxiliary air chamber 22 is provided on the upper part of th...

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PUM

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Abstract

The invention discloses an air spring with variable rigidity and a control system based on the same. The air spring comprises an air bag and a piston. An air bag chamber is formed in the air bag. An auxiliary gas chamber and an electromagnetic valve cutting off or communicating the air bag chamber and the auxiliary gas chamber arranged in the piston. According to the invention, the electromagnetic valve is additionally arranged between the air bag chamber and the piston gas chamber and is combined with an ECU control system, a speed sensor and an angle sensor to collect information on speed change, steering angle change and brake condition of an automobile so as to control the electromagnetic valve to be switched on and off to change the rigidity, so that the rigidity of the spring is improved to resist side inclination, inclination and hypsokinesis; by making full use of a space in the piston, the space utilization ratio is improved, and the problem that other spaces of the automobile are occupied; steering states such as emergency brake and sharp bend of the automobile are scientifically and reasonably organically combine with change of the rigidity of the air spring, so that better operability and operating stability are obtained.

Description

[0001] 【Technical field】 [0002] The invention relates to an air spring, in particular to an air spring with variable stiffness and a control system based on the air spring. [0003] 【Background technique】 [0004] The air springs used in traditional vehicles have limited stiffness changes within a certain pressure range. Under complex and changeable working conditions, the vehicle cannot obtain good ride comfort and handling stability. The air spring utilizes the compressibility of gas to realize its elastic effect, and has the functions of buffering and vibration isolation. The suspension system equipped with air springs has better ride comfort and ride comfort than ordinary suspensions. If the stiffness of the air spring is adjusted reasonably during driving, the suspension system and the performance of the vehicle can be reasonably matched. [0005] According to the structural type, the air spring can be divided into two types: capsule type and membrane type. The stiffn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/04F16F9/32F16F9/34F16F9/512
CPCF16F9/04F16F9/3214F16F9/34F16F9/5126
Inventor 杜冀林胡万良梁清林王亚琳曹崇禧黄永亮
Owner 方盛车桥(苏州)有限公司
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