JPS62181412U

JPS62181412U -

Info

Publication number: JPS62181412U
Application number: JP6996086U
Authority: JP
Priority date: 1986-05-12
Filing date: 1986-05-12
Publication date: 1987-11-18
Anticipated expiration: 2001-05-12
Also published as: JPH0546481Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係わる車両用サス
ペンシヨン装置を示す図、第２図Ａ及びＢは３方
向弁の駆動、非駆動状態を示す図、第３図Ａ及び
Ｂはソレノイドバルブの駆動、非駆動状態を示す
図、第４図はＧセンサの出力の一例を示す図、第
５図は車高調整及び姿勢制御時のバルブ開閉を示
す図、第６図は同実施例の動作を示すフローチヤ
ート、第７図は動作を説明するためのタイミング
図である。５ａ……アクチユエータ、５……減衰力切換え
弁、１１……コンプレツサ、１５……リザーブタ
ンク、１９……給気流量制御バルブ、２０……前
輪用給気ソレノイドバルブ、２４……後輪用給気
ソレノイドバルブ、２８……フロント排気バルブ
、３１……リヤ排気バルブ、３４Ｆ……フロント
車高センサ、３７……コントロールユニツト、３
９……Ｇセンサ。 Figure 1 is a diagram showing a vehicle suspension device according to an embodiment of the present invention, Figures 2A and B are diagrams showing the 3-way valve in the driven and non-driven states, and Figure 3 A and B are the solenoid valves. Figure 4 is a diagram showing an example of the output of the G sensor, Figure 5 is a diagram showing valve opening and closing during vehicle height adjustment and attitude control, and Figure 6 is a diagram showing the driving and non-driving states of the same embodiment. A flowchart showing the operation, and FIG. 7 is a timing diagram for explaining the operation. 5a... Actuator, 5... Damping force switching valve, 11... Compressor, 15... Reserve tank, 19... Air supply flow rate control valve, 20... Air supply solenoid valve for front wheels, 24... Supply for rear wheels Gas solenoid valve, 28...Front exhaust valve, 31...Rear exhaust valve, 34F...Front vehicle height sensor, 37...Control unit, 3
9...G sensor.

Claims

[Scope of utility model registration request]

a fluid spring chamber provided for each wheel and interposed between each wheel and the vehicle body; a fluid supply means for supplying fluid to each of the fluid spring chambers via a supply control valve; A fluid discharge means for discharging fluid from the chamber through respective discharge control valves, a front vehicle height sensor for detecting the distance between the front wheels and the vehicle body, and a rear vehicle height sensor for detecting the distance between the rear wheels and the vehicle body. , when the front vehicle height detected by the front vehicle height sensor satisfies the conditions of vibration having an amplitude greater than the set value and a period within the set range with the standard vehicle height as the center of the amplitude,
Front wheel control means outputs a control signal to the supply control valve or discharge control valve to supply and discharge fluid to the fluid spring chamber for the front wheels in a direction to offset the vibration, and detection is performed by the rear vehicle height sensor. When the rear vehicle height satisfies the amplitude condition with the standard vehicle height as the center of amplitude, the amplitude is greater than the set value, and the period is within the set range, the fluid spring chamber for the rear wheels is applied in a direction that cancels out the vibration. A suspension device for a vehicle, comprising rear wheel control means for outputting a control signal to the supply control valve or the discharge control valve to supply and discharge fluid.