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car suspension mechanism

A suspension and shock absorber technology, applied in the field of suspension mechanisms with variable stiffness, can solve the problems of poor adaptation, low service life, poor reliability, etc., and achieve simple structure, large bearing capacity, Good vibration isolation effect

Inactive Publication Date: 2015-08-05
刘浩 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the positive stiffness suspension still used in this technical solution, although the stiffness can be adjusted, has complex structure, poor reliability, low service life, limited effect, and cannot well adapt to different road surface changes

Method used

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Embodiment Construction

[0024] The suspension structure of the present invention reasonably sets the swing arm structure, stiffness and damping, and at the same time can greatly adjust the bearing capacity of the system by changing the pre-deformation amount of positive and negative stiffness springs.

[0025] Such as figure 1 As shown, the body single-degree-of-freedom model of the traditional suspension mechanism in the prior art, due to the natural frequency of the body vibration Keeping the same, in order to ensure the ultra-low frequency vibration isolation effect of the suspension mechanism in the vertical direction of the vehicle body, the suspension mechanism must have an extremely low stiffness, and the negative stiffness structure can effectively solve this problem. The single-degree-of-freedom model of the car body using the suspension mechanism is as follows: figure 2 As shown, the natural frequency of vibration when the body fluctuates with the road surface .

[0026] Depend on i...

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Abstract

The invention discloses a suspension mechanism applicable to an automobile. The suspension mechanism can vertically and horizontally decompose vibration energy in multiple directions of the automobile and lower vibration energy in the vertical direction of an automobile body, thereby lowering transmission ratio of vibration from automobile wheels to the automobile body and improving the traveling smoothness of the automobile and ride comfort for passengers.

Description

technical field [0001] The invention relates to a suspension system for automobiles, more specifically, to a suspension mechanism with variable stiffness applied to automobiles. Background technique [0002] The suspension system transmits all the forces and moments acting between the wheels and the body, and eases the impact of the car on uneven roads, attenuates the vibration transmission rate from the wheels to the body, ensures the comfort of the occupants, and reduces the vibration of the vehicle itself. Dynamic load can effectively improve the ride comfort of the vehicle. [0003] Especially for passenger cars, the suspension system must ensure that the vibration acceleration suffered by the occupants in the car does not exceed the specified limit value, and it must also ensure that the body and wheels have small vibration amplitudes in the resonance area and fast vibration attenuation. [0004] Existing automobiles still use positive-stiffness elastic elements as the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G17/02
Inventor 刘浩屈小贞何辉
Owner 刘浩