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A built-in solenoid valve type semi-active damping continuously adjustable shock absorber and control method

A shock absorber, solenoid valve technology, applied in shock absorbers, liquid shock absorbers, shock absorbers, etc., can solve the problems of small inherent damping, limited shock absorption effect, and reduced vehicle fuel economy.

Active Publication Date: 2021-05-07
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Passive suspension has constant parameters such as stiffness and damping, so the car's vibration reduction effect is limited. Active suspension uses controllable shock absorbers to change the stiffness and damping of the suspension in real time according to road conditions to improve the ride comfort and handling of the vehicle. Stability, but the active suspension consumes a lot of energy and reduces the fuel economy of the vehicle
Active suspension mainly relies on external energy supply to achieve vibration reduction effect, which has always been an important issue restricting the development of active suspension technology, and when the active suspension shock absorber fails or fails, its inherent damping is small, and safety is difficult to guarantee

Method used

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  • A built-in solenoid valve type semi-active damping continuously adjustable shock absorber and control method
  • A built-in solenoid valve type semi-active damping continuously adjustable shock absorber and control method
  • A built-in solenoid valve type semi-active damping continuously adjustable shock absorber and control method

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Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a built-in electromagnetic valve type semi-active damping continuously adjustable shock absorber, including a shock absorber body and a shock absorber control system, is characterized in that the shock absorber body includes a working cylinder (14), a storage Oil cylinder (1), shock absorber dust cover (40), bottom valve assembly, piston assembly, solenoid valve assembly, the oil storage cylinder (1) is half surrounded by the working cylinder (14), so The upper port of the oil storage cylinder (1) and the working cylinder (14) are sealed and connected with a fixed sealing ring (16), and the middle of the top cover of the working cylinder (14) is provided with a And the piston rod (38) of the shock absorber dust cover (40), adopt O-type sealing ring (17) to connect between the described working cylinder (14) and the piston rod (38), and the described piston rod (38) The outer side forms a closed structure with the working cylinder (14) and the...

Embodiment 2

[0045] Such as Figure 4 As shown, the shock absorber control system includes a shock absorber controller (39), a visual nervous system, a solenoid valve drive circuit, a solenoid valve, and a solenoid valve shock absorber. The hollow part at the top of the piston rod (38) is equipped with a shock absorber controller (39), and the input terminal of the shock absorber controller is connected with an unsprung mass velocity sensor for real-time detection of the unsprung mass velocity, Sprung mass velocity sensor for real-time detection of sprung mass velocity, vehicle body speed sensor, force sensor for real-time detection of output damping force of solenoid valve shock absorber, vertical displacement sensor for road surface input, vertical displacement of tire The sensor and the output end of the visual nervous system, wherein the input end of the visual nervous system is connected with a road scanner sensor. The speed sensor of the vehicle speed and the road surface scanner se...

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Abstract

The invention belongs to the technical field of vehicle shock absorbers, and in particular relates to a built-in electromagnetic valve type semi-active damping continuously adjustable shock absorber and a control method, including a shock absorber body and a shock absorber control system, characterized in that the shock absorber The vibrator body includes a working cylinder, an oil storage cylinder, a shock absorber dust cover, a bottom valve assembly, a piston assembly, and a solenoid valve assembly. The invention also discloses a control system for a continuously adjustable shock absorber with built-in damping method, this control method can carry out continuous switching control of different modes of soft and hard damping on the shock absorber, rationally integrate the solenoid valve and the piston inside the damping continuously adjustable shock absorber, and the valve core part adopts different cross-sectional structures, At the same time, guides are designed around the valve core to make the valve core more stable, which can not only achieve better vibration reduction, but also realize damping adjustment of different comfort levels. It is easy to use, saves space, has broad application prospects, and is convenient for popularization and use.

Description

technical field [0001] The invention belongs to the technical field of vehicle shock absorbers, and in particular relates to a built-in electromagnetic valve type semi-active damping continuously adjustable shock absorber and a control method thereof. Background technique [0002] At present, vehicle suspension systems mainly include passive suspension, semi-active suspension and active suspension. Passive suspension has constant parameters such as stiffness and damping, so the car's vibration reduction effect is limited. Active suspension uses controllable shock absorbers to change the stiffness and damping of the suspension in real time according to road conditions to improve the ride comfort and handling of the vehicle. Stability, but the active suspension consumes a lot of energy and reduces the fuel economy of the vehicle. Active suspension mainly relies on external energy supply to achieve vibration reduction effect, which has always been an important issue restrictin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/16F16F9/50B60G17/0165
CPCB60G17/0165B60G2202/24B60G2400/20B60G2400/821F16F9/16F16F9/50
Inventor 寇发荣王睿田蕾景强强高亚威洪锋
Owner XIAN UNIV OF SCI & TECH
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