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Intelligent hydraulic cross-linked suspension system

A cross-linked suspension system, hydraulic technology, applied in the direction of fluid pressure actuators, springs, shock absorbers, etc., can solve the problem of being unable to take into account various complex driving conditions, intelligently change the cross-linking mode, and cannot adapt to driving conditions and other problems, to achieve the effect of low processing and installation accuracy, simple structure, and easy processing and manufacturing

Active Publication Date: 2016-08-17
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the cars installed on domestic and foreign cars are traditional independent suspension or non-independent suspension systems. Driving conditions, it is difficult to achieve the desired effect
At the same time, a small number of models are equipped with a cross-linked suspension system, but there is only one cross-linked form. Although it can improve certain performances of the car to a certain extent, it cannot intelligently change the cross-linked method according to different road conditions. Therefore, it still cannot adapt to various driving conditions.
Therefore, the current automobile suspension system cannot take into account various complex driving conditions, and cannot improve the driving safety and comfort of the automobile at the same time.

Method used

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  • Intelligent hydraulic cross-linked suspension system

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Experimental program
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Effect test

Embodiment 1

[0020] Such as Figure 5 , 6 As shown, the first cross-linking mode of the intelligent hydraulic cross-linking suspension system: A1 is connected to C1, B2, and D2, and A2 is connected to C2, B1, and D1. This is the default connection mode of the intelligent hydraulic cross-linking suspension system. In this cross-linking mode, when the vehicle moves vertically, the oil flow through the throttle valve 8 on the pipeline of the accumulator 7 is discharged from the area of ​​the piston rod, and the flow is small, so the vertical damping force generated is very small ; When the vehicle is doing roll motion, due to the left and right cross connections, the oil flow through the throttle valve 8 on the pipeline of the accumulator 7 is discharged by the sum of the area of ​​the rodless cavity and the area of ​​the rod cavity, and the flow is very large, so it will Produces very large roll angle damping, suppressing excessive body roll motion. When the vehicle passes through a rough ...

Embodiment 2

[0022] Such as Figure 7 , 8 Shown: The second cross-linking method of the intelligent hydraulic cross-linking suspension system: A1 is connected to D2, A2 is connected to D1, B1 is connected to C2, and B2 is connected to C1. This cross-linking method is equivalent to the vehicle having two pairs of left and right Cross and two pairs of front and rear cross shock absorber groups, the roll and pitch motion of the body will produce a large dip angle damping, so the vehicle has high roll and pitch stability, which can prevent the vehicle from accelerating, braking or Excessive body inclination is generated when steering, which improves the posture stability and ride comfort of the body. The use of this cross-linking method when the vehicle starts and brakes can reduce the phenomenon of starting and braking nodding.

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Abstract

The invention relates to an intelligent hydraulic cross-linked suspension system, which is characterized in that: a connection port and a lower connection port are provided at the lower section of the oil cylinder of the shock absorber group, the position of the lower connection port is lower than that of the connection port, a throttle valve and the connection port Connection, the left end interface of the external damping valve block is connected to the lower connection port, the right end interface of the external damping valve block is connected to the external damping valve block interface at one end of the tee pipe, and the accumulator interface at the bottom of the tee pipe is connected to the accumulator through the pipeline. The energy device 7 is connected, the b throttle valve is arranged on the pipeline between the three-way pipe and the accumulator, and the central control valve interface at the other end of the three-way pipe is connected with the central control valve E through the pipeline; it connects the shock absorber The internal bottom valve assembly is redesigned and moved to the outside of the shock absorber, which not only has the compression and stretching effect of the original shock absorber, but also has a simpler structure as an external damping valve block, and it is more convenient to adjust the characteristics of the shock absorber, which is realized through the central control valve. The cross-linking function can improve the rolling stiffness of the car, improve the turning stability of the car, improve the pitching stiffness, and improve the off-road performance of the car.

Description

technical field [0001] The invention relates to an intelligent hydraulic cross-linking suspension system, which belongs to the suspension system in the field of automobiles, and in particular to an intelligent hydraulic cross-linking suspension system which can intelligently change the cross-linking mode according to the driving conditions of the vehicle. Background technique [0002] The vehicle's demand for suspension performance will change with the change of driving conditions. For example, when the car is turning, it is hoped that the suspension will be harder to prevent the body from generating large roll motions and improve driving safety; when the car passes through uneven roads When driving, it is hoped that the suspension will be softer, so as to filter out as much as possible the uneven excitation of the ground, reduce the vibration transmitted to the body, and improve driving comfort. [0003] At present, most of the cars installed on domestic and foreign cars ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/34F15B1/02F15B13/08
Inventor 秦民郭孔辉蒋永峰金凌鸽
Owner CHINA FIRST AUTOMOBILE
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