JPS62153108U

JPS62153108U -

Info

Publication number: JPS62153108U
Application number: JP4248086U
Authority: JP
Priority date: 1986-03-24
Filing date: 1986-03-24
Publication date: 1987-09-29

Description

[Brief explanation of the drawing]

第１図はこの考案の基本構成を示すブロツク図
、第２図はこの考案の第１実施例を示すブロツク
図、第３図はこの考案の概略構成を示す構成図、
第４図はこの考案に適用し得る減衰力可変シヨツ
クアブソーバの一例を示す断面図、第５図はその
要部の拡大断面図、第６図は変位量検出手段の一
例を示すブロツク図、第７図はその相対変位に対
する出力電圧の関係を示すグラフ、第８図は及び
第９図は夫々制御装置の処理手順の一例を示すフ
ローチヤート、第１０図はこの考案の動作の説明
に供する信号波形図、第１１図はこの考案の第２
実施例における制御装置の処理手順を示すフロー
チヤート、第１２図はその動作の説明に供する信
号波形図である。２ａ〜２ｄ……変位量検出手段、３……制御装
置、４ａ〜４ｄ……電磁ソレノイド、５ａ〜５ｄ
……車輪、６ａ〜６ｄ……減衰力可変シヨツクア
ブソーバ、１０……シノンダチユーブ、１１……
ピストンロツド、１３……減衰力可変部、１９…
…固定プランジヤ、２０……可動プランジヤ、２
２，２３……減衰力可変ポート、１８……変位量
検出コイル、３０……マイクロコンピユータ、３
４ａ〜３４ｄ……駆動トランジスタ。 FIG. 1 is a block diagram showing the basic configuration of this invention, FIG. 2 is a block diagram showing a first embodiment of this invention, and FIG. 3 is a block diagram showing a schematic configuration of this invention.
FIG. 4 is a sectional view showing an example of a variable damping force shock absorber applicable to this invention, FIG. 5 is an enlarged sectional view of its main parts, and FIG. FIG. 7 is a graph showing the relationship between the output voltage and the relative displacement, FIGS. 8 and 9 are flowcharts showing an example of the processing procedure of the control device, and FIG. 10 is a signal diagram for explaining the operation of this invention. The waveform diagram, Figure 11, is the second waveform diagram of this invention.
FIG. 12 is a flowchart showing the processing procedure of the control device in the embodiment, and is a signal waveform diagram for explaining its operation. 2a-2d...displacement detection means, 3...control device, 4a-4d...electromagnetic solenoid, 5a-5d
... Wheels, 6a to 6d ... Variable damping force shock absorber, 10 ... Chinon tube, 11 ...
Piston rod, 13... Damping force variable part, 19...
...Fixed plunger, 20...Movable plunger, 2
2, 23... Damping force variable port, 18... Displacement detection coil, 30... Microcomputer, 3
4a to 34d...drive transistors.

Claims

[Scope of utility model registration request]

A variable damping force shock absorber whose damping force can be changed by inputting a control signal, and a displacement amount detection means for detecting the amount of relative displacement between the sprung mass and the unsprung mass of a vehicle connected by the variable damping force shock absorber. and a direction determination means for determining the direction of relative displacement based on the relative displacement detection value of the displacement amount detection means, and a dead band width for damping force switching with respect to the neutral position according to the relative displacement detection value of the displacement amount detection means. The relative displacement of the shock absorber is determined based on the dead band width setting means to be set, the dead band width set by the dead band width setting means, the relative displacement amount detection value of the displacement amount detection means, and the judgment result of the direction judgment means. When the displacement is within the dead zone and when the displacement is outside the dead zone in a direction away from the neutral position, the control signal that causes the variable damping force shock absorber to have a low damping force is displaced in the direction approaching the neutral position outside the dead zone. 1. A shock absorber control device comprising: control means for respectively outputting the control signals to produce a high damping force.