JPS6067208U

JPS6067208U - Vehicle height adjustment device

Info

Publication number: JPS6067208U
Application number: JP16035083U
Authority: JP
Inventors: 白鳥　治則; 将石川
Original assignee: トヨタ自動車株式会社
Priority date: 1983-10-17
Filing date: 1983-10-17
Publication date: 1985-05-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案による車輛用車高調整装置の一つの実施
例を示す概略構成図、第２図は第１図に示された第二の
流量制御弁を示す断面図、第３図は第１図に示された電
磁開閉弁等の作動を制御する制御装置を示す解図、第４
図は第１図に示された流量制御弁の他の一つの実施例を
示す断面図、第５図は第４図に示された流量制御弁の流
量制御特性を示すグラフである。１・・・リザーブタンク、２〜５・・・アクチュエータ
、６・・・シリンダ、７・・・ピストン、８・・・ダイ
ヤフラム、９・・・シリンダ室、１０・・・液体室、１
１・・・気体室、１２・・・流体加圧タンク、１３・・
・導管、１４・・・フローデイバイダ、１４ａ、１４ｂ
・・・絞り、１５．１６・・・導管、１７・・・フロー
ディパイダ、１７ａ、１７ｂ・・・絞り、１８〜２２・
・・導管、２３・・・フローデイバイダ、２３ａ、２３
ｂ・・・絞り、２４゜−２５・・・導管、２６・・・ポ
ンプ、２７・・・復帰導管、２　　８・・・流量制御弁
、２９・・・ＩＪ　ＩＪ−フ弁、３０・・・フロープラ
イオリティ弁、３１・・・導管、３２・・・他の流体圧
装置、３３・・・圧力制御弁、３４・・・逆止弁、３５
・・・復帰導管、３６・・・接続部、３７・・・導管、
３８・・・アキュムレータ、３９・・・ダイヤフラム、
４０・・・液体室、４１・・・液体室、４２・・・電磁
開閉弁、４２ａ・・・ソレノイド、４３〜４５・・・電
磁切換弁、４３ａ〜４５ａ・・・ソレノイド、４６〜４
８・・・復帰導管、４９〜５２・・・絞り付き逆止弁装
置、５３〜５６〜絞り、５７〜６０・・・バイパス通路
、６１〜６　　　　。４・・・逆止弁、６５・・・電磁開閉弁、６５ａ・・・
ソレノイド、６６・・・復帰導管、６７・・・流量制御
弁、６８・・・通路、６９・・・環状溝、７０・・・弁
室、７１・・・通路、７２・・・ハウジング、７３・・
・固定絞り、７４・・・弁要素、７５・・・圧縮コイル
ばね、７６・・・溝、７７・・・ソレノイド、７８・・
−制御装置、７９・・・電子制御装置、８０・・・前輪
車高センサ、８１・・・後輪車高センサ、８２・・・イ
ンジケータ、８３・・・イグニッションスイッチ、８４
・・・車速センサ、８５・・・車高ｉｉスイッチ、８６
・・・ハウジング、８７．８８．８９・・・通路、９０
・・・弁室、９１・・・メイン絞り、９２・・・弁要素
、９３．９４・・・室、９４ａ・・・通路、９５・・・
圧縮コイルばね、９６・・・肩部、９７・・・弁室、９
８．９９・・・通路、１００・・・環状溝、１０１・・
・球、１０２・・・弁座、１０３・・・圧縮コイルばね
、１０４・・・バイパス通路、１０５・・・補助流量制
御弁、１０６・・・サブ絞り、１０７・・・弁室、１０
８・・・弁要素、１０９・・・環状溝、１１０・・・圧
縮コイルばね、１１・　１・・・ピストン、１１２・・
・シリンダ室、１１３−ｉ路。FIG. 1 is a schematic configuration diagram showing one embodiment of the vehicle height adjustment device according to the present invention, FIG. 2 is a sectional view showing the second flow control valve shown in FIG. 1, and FIG. An illustration showing the control device that controls the operation of the electromagnetic on-off valve etc. shown in Fig. 1, No. 4
This figure is a sectional view showing another embodiment of the flow control valve shown in FIG. 1, and FIG. 5 is a graph showing the flow control characteristics of the flow control valve shown in FIG. 4. DESCRIPTION OF SYMBOLS 1... Reserve tank, 2-5... Actuator, 6... Cylinder, 7... Piston, 8... Diaphragm, 9... Cylinder chamber, 10... Liquid chamber, 1
1... Gas chamber, 12... Fluid pressurized tank, 13...
- Conduit, 14...Flow divider, 14a, 14b
... Restriction, 15.16 ... Conduit, 17 ... Flow divider, 17a, 17b ... Restriction, 18-22.
... Conduit, 23 ... Flow divider, 23a, 23
b... Throttle, 24°-25... Conduit, 26... Pump, 27... Return conduit, 2 8... Flow rate control valve, 29... IJ IJ-fu valve, 30...・Flow priority valve, 31... Conduit, 32... Other fluid pressure device, 33... Pressure control valve, 34... Check valve, 35
...Return conduit, 36... Connection part, 37... Conduit,
38...Accumulator, 39...Diaphragm,
40...Liquid chamber, 41...Liquid chamber, 42...Solenoid on/off valve, 42a...Solenoid, 43-45...Solenoid switching valve, 43a-45a...Solenoid, 46-4
8...Return conduit, 49-52...Check valve device with throttle, 53-56-throttle, 57-60...Bypass passage, 61-6. 4...Check valve, 65...Solenoid on-off valve, 65a...
Solenoid, 66... Return conduit, 67... Flow rate control valve, 68... Passage, 69... Annular groove, 70... Valve chamber, 71... Passage, 72... Housing, 73・・・
・Fixed throttle, 74...Valve element, 75...Compression coil spring, 76...Groove, 77...Solenoid, 78...
- Control device, 79... Electronic control device, 80... Front wheel height sensor, 81... Rear wheel height sensor, 82... Indicator, 83... Ignition switch, 84
...Vehicle speed sensor, 85...Vehicle height II switch, 86
...housing, 87.88.89...passage, 90
...Valve chamber, 91... Main throttle, 92... Valve element, 93.94... Chamber, 94a... Passage, 95...
Compression coil spring, 96...Shoulder, 97...Valve chamber, 9
8.99... Passage, 100... Annular groove, 101...
- Ball, 102...Valve seat, 103...Compression coil spring, 104...Bypass passage, 105...Auxiliary flow control valve, 106...Sub throttle, 107...Valve chamber, 10
8... Valve element, 109... Annular groove, 110... Compression coil spring, 11. 1... Piston, 112...
- Cylinder chamber, 113-i path.

Claims

[Scope of utility model registration request]

A working fluid supply source, a hydraulic actuator that increases vehicle height by being supplied with working fluid, a passage means for communicating and connecting the working fluid supply source and the actuator, and a passage means provided in the middle of the passage means. a pump means for supplying working fluid from the working fluid supply source to the actuator; an on-off valve provided in the middle of the passage means between the pump means and the actuator; and the pump means and the on-off valve. a pressure control valve provided in the middle of the passage means between the passage means and controlling the internal pressure of the passage means downstream thereof within a predetermined range; and a pressure control valve provided between the pressure control valve and the pump means. a first flow control valve provided in the middle of the passage means to control the flow rate of the working fluid flowing through the passage means to a predetermined amount; and a first flow control valve that controls the flow rate of the working fluid supplied to the pressure control valve in response to the vehicle speed. and a second flow control valve that controls the vehicle height.