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Built-in electromagnetic-valve-type semi-active damping-continuous-adjustable shock absorber, and control method

A shock absorber and solenoid valve technology, applied in the direction of shock absorber, liquid shock absorber, shock absorber, etc., can solve the problems of reducing vehicle fuel economy, high energy consumption of active suspension, and limited vibration damping effect , to achieve significant suspension vibration damping effect, ensure safety and operational stability, and compact structure

Active Publication Date: 2020-03-17
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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  • Built-in electromagnetic-valve-type semi-active damping-continuous-adjustable shock absorber, and control method
  • Built-in electromagnetic-valve-type semi-active damping-continuous-adjustable shock absorber, and control method
  • Built-in electromagnetic-valve-type semi-active damping-continuous-adjustable shock absorber, and control method

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Experimental program
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Effect test

Embodiment 1

[0039] 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 described oil storage cylinder (1) is half surrounded by the outside of 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-shaped 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 wo...

Embodiment 2

[0046] 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 damping devices and specifically relates to a built-in electromagnetic-valve-type semi-active damping-continuous-adjustable shock absorber, anda control method. The built-in electromagnetic-valve-type semi-active damping-continuous-adjustable shock absorber comprises a shock absorber body and a shock absorber control system and is characterized in that the shock absorber body comprises a working cylinder barrel, an oil storage cylinder barrel, a shock absorber dustproof cover, a bottom valve assembly, a piston assembly and an electromagnetic valve assembly. The invention also discloses the control method for the built-in damping-continuous-adjustable shock absorber. The control method is characterized in that continuous switching control of different modes can be realized for soft and hard damping of the shock absorber; an electromagnetic valve can be rationally integrated with a piston inside the damping-continuous-adjustable shock absorber; different cross section structures are adopted for a valve core; guidance structures are designed around the valve core, so the valve core is more stable; damping is realized, and damping adjustment of different comfort degrees can be realized; use is convenient; space is saved; use prospect is wide; and promotion and use are easy.

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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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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