JPS621763Y2 - - Google Patents
Info
- Publication number
- JPS621763Y2 JPS621763Y2 JP14176781U JP14176781U JPS621763Y2 JP S621763 Y2 JPS621763 Y2 JP S621763Y2 JP 14176781 U JP14176781 U JP 14176781U JP 14176781 U JP14176781 U JP 14176781U JP S621763 Y2 JPS621763 Y2 JP S621763Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- air chamber
- vehicle height
- valve
- air pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000725 suspension Substances 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 description 16
- 230000035939 shock Effects 0.000 description 13
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は、自動車等の車輌に用いられる車輌用
懸架装置に係り、更に詳細には車高調整機能を有
する車輌用懸架装置に係る。[Detailed Description of the Invention] The present invention relates to a vehicle suspension system used for vehicles such as automobiles, and more particularly to a vehicle suspension system having a vehicle height adjustment function.
空気室を有し該空気室に供給される空気圧に応
じて車高を調整する車高調整機能を備えたシヨツ
クアブソーバを含み、車高が所定値より低いとき
にはエアコンプレツサの如き空気圧発生装置が発
生する空気圧を前記空気室へ供給し、シヨツクア
ブソーバの通常実効長を長くして車高を修正する
よう構成された車輌用懸架装置が従来から提案さ
れている。 It includes a shock absorber that has an air chamber and has a vehicle height adjustment function that adjusts the vehicle height according to the air pressure supplied to the air chamber, and when the vehicle height is lower than a predetermined value, an air pressure generating device such as an air compressor is activated. A vehicle suspension system has been proposed in the past that is configured to supply generated air pressure to the air chamber to lengthen the normally effective length of the shock absorber to correct the vehicle height.
上述の如きシヨツクアブソーバに於ける空気室
は、空気ばねとしても作用し、このため特に車高
が低くなつて空気室に供給されている空気圧が高
いときにはこの空気ばね定数が大きくなり、車輌
の乗心地性が悪くなることがある。このためシヨ
ツクアブソーバとは別に空気室を設け、この空気
室をシヨツクアブソーバの空気室に連通接続し、
これによつて全体の空気室の容積を拡大し、空気
ばね定数を小さくして乗心地性が悪化しないよう
にすることが従来から考えられている。 The air chamber in the shock absorber as described above also acts as an air spring. Therefore, especially when the vehicle height is low and the air pressure supplied to the air chamber is high, this air spring constant becomes large and the ride of the vehicle increases. You may feel uncomfortable. For this purpose, an air chamber is provided separately from the shock absorber, and this air chamber is communicated and connected to the air chamber of the shock absorber.
Conventionally, it has been considered to increase the volume of the entire air chamber and reduce the air spring constant to prevent the ride comfort from deteriorating.
しかし、上述の如き別の空気室が設けられる
と、車高調整の際に、特に車高が低くなつて空気
室の空気圧を高くする場合、前記別の空気室の容
積分だけそれがないときに比して空気を余分に供
給しなければならず、車高調整時間を長くする原
因になる。 However, if another air chamber as described above is provided, when adjusting the vehicle height, especially when the vehicle height is lowered and the air pressure in the air chamber is increased, if the air pressure in the air chamber is not increased by the volume of the other air chamber. It is necessary to supply more air compared to the above, which causes a longer vehicle height adjustment time.
本考案は車輌の乗心地性の改善のために別の空
気室が設けられても車高調整時間を増大すること
がない改良された車輌用懸架装置を提供すること
を目的としている。 SUMMARY OF THE INVENTION An object of the present invention is to provide an improved suspension system for a vehicle that does not increase the vehicle height adjustment time even if a separate air chamber is provided to improve the riding comfort of the vehicle.
かかる目的は、主空気室と、前記主空気室に連
通し空気ばね特性を調整する副空気室と、前記主
空気室へ空気圧を供給する空気圧供給手段と、車
高調整時には前記主空気室と前記副空気室との連
通を遮断する弁とを有していることを特徴とする
車輌用懸架装置によつて達成される。 The purpose is to provide a main air chamber, an auxiliary air chamber that communicates with the main air chamber and adjusts the air spring characteristics, an air pressure supply means that supplies air pressure to the main air chamber, and a main air chamber that communicates with the main air chamber when adjusting the vehicle height. This is achieved by a vehicle suspension system characterized by having a valve that cuts off communication with the auxiliary air chamber.
上述の如き構成によれば、車高調整時には弁に
より主空気室と副空気室との連通が遮断されるこ
とにより車高調整のための主空気室の空気圧調整
が副空気室の容積の影響を受けることなく迅速に
行われ、副空気室が設けられたことによつて車高
調整に要する時間が長くなることが回避される。
尚、車高調整時以外には主空気室と副空気室とが
連通して空気ばねの空気室の実効容積の拡大が図
られて良く、これにより空気ばね定数が小さい値
に保たれて乗心地性が良好に保たれるようにな
る。 According to the configuration described above, when adjusting the vehicle height, the communication between the main air chamber and the auxiliary air chamber is cut off by the valve, so that the air pressure adjustment of the main air chamber for adjusting the vehicle height is influenced by the volume of the auxiliary air chamber. This is done quickly without causing any damage, and the provision of the auxiliary air chamber avoids an increase in the time required for vehicle height adjustment.
Besides, when adjusting the vehicle height, the main air chamber and the auxiliary air chamber may communicate with each other to expand the effective volume of the air chamber of the air spring, thereby keeping the air spring constant to a small value and increasing the Comfort will be maintained well.
以下に添付の図を参照して本考案を実施例につ
いて詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.
添付の図は本考案による車輌用懸架装置の一つ
の実施例を示す概略構成図である。図に於て、１
及び２は各々図には示されていない左右の車輪の
ためのシヨツクアブソーバを示している。シヨツ
クアブソーバ１及び２は、各々ピストンロツド
３，４に固定されアブソーバシリンダ５，６の外
周に入筒式に遊嵌合する筒状のアウタカバーシエ
ル７，８と、該アウタカバーシエルの内側に密閉
構造の主空気室９，１０を郭定すべく一端にて前
記アウタカバーシエルの内周部に他端にて前記ア
ブソーバシリンダの外周部に各々密閉接続されほ
ぼＵ字型断面を有するローリングシール型のダイ
ヤフラム１１，１２とを備えている。シヨツクア
ブソーバ１及び２は各々主空気室９，１０に空気
圧が供給されることにより通常実効長を変化し、
これにより車高を調整するようになつている。 The attached figure is a schematic diagram showing one embodiment of a vehicle suspension system according to the present invention. In the figure, 1
and 2 designate shock absorbers for the left and right wheels, which are not shown in the figures, respectively. The shock absorbers 1 and 2 have cylindrical outer cover shells 7 and 8 which are fixed to the piston rods 3 and 4 and are loosely fitted around the outer circumferences of the absorber cylinders 5 and 6, and are sealed inside the outer cover shells. A rolling seal type having a substantially U-shaped cross section, which is hermetically connected to the inner periphery of the outer cover shell at one end and the outer periphery of the absorber cylinder at the other end to define the main air chambers 9 and 10 of the structure. diaphragms 11 and 12. The shock absorbers 1 and 2 normally change their effective lengths by supplying air pressure to the main air chambers 9 and 10, respectively.
This allows the vehicle height to be adjusted.
１３はエアコンプレツサを示しており、該エア
コンプレツサ１３は導管１４、エアドライヤ１
５、導管１６、導管１７、開閉弁１８及び導管１
９を経てリザーブタンク（蓄圧器）２０に接続さ
れ、また導管１６と１７は導管２１、開閉弁２
２、導管２３、継手２４及び導管２５，２６を経
て主空気室９及び１０に各々接続れている。 Reference numeral 13 indicates an air compressor, and the air compressor 13 is connected to a conduit 14 and an air dryer 1.
5, conduit 16, conduit 17, on-off valve 18 and conduit 1
9 is connected to a reserve tank (accumulator) 20, and conduits 16 and 17 are connected to a conduit 21 and an on-off valve 2.
2, connected to the main air chambers 9 and 10 via a conduit 23, a joint 24 and conduits 25, 26, respectively.
主空気室９及び１０は導管２５，２６、継手２
４、導管２７、開閉弁２８及び導管２９を経て副
空気室３０に接続されている。この副空気室３０
は導管２９，３１、開閉弁３２及び導管３３を経
て導管１６及び１７に接続されている。また導管
１４は導管３４、開閉弁３５を経てドレン管３６
に接続されている。 Main air chambers 9 and 10 are connected to conduits 25, 26 and joints 2
4, it is connected to the sub-air chamber 30 via a conduit 27, an on-off valve 28, and a conduit 29. This sub air chamber 30
is connected to the conduits 16 and 17 via conduits 29, 31, an on-off valve 32, and a conduit 33. In addition, the conduit 14 passes through a conduit 34, an on-off valve 35, and then a drain pipe 36.
It is connected to the.
開閉弁１８，２２，２８，３２及び３５は各々
電磁式の開閉弁として構成され、制御装置３７に
よつてその作動を個別に制御されるようになつて
いる。制御装置３７は、車高センサ３８によつて
測定された車高と、圧力センサ３９によつて測定
されたリザーブタンク２０の空気圧と、圧力セン
サ４０によつて測定された副空気室３０の空気圧
と、圧力センサ４１によつて測定された主空気室
９及び１０の空気圧とに応じてエアコンプレツサ
１３の作動及び開閉弁１８，２２，２８，３２，
３５の開閉を制御するようになつている。 The on-off valves 18, 22, 28, 32, and 35 are each configured as an electromagnetic on-off valve, and their operations are individually controlled by a control device 37. The control device 37 controls the vehicle height measured by the vehicle height sensor 38, the air pressure in the reserve tank 20 measured by the pressure sensor 39, and the air pressure in the auxiliary air chamber 30 measured by the pressure sensor 40. and the air pressure in the main air chambers 9 and 10 measured by the pressure sensor 41, the operation of the air compressor 13 and the on-off valves 18, 22, 28, 32,
It is designed to control the opening and closing of 35.
次にその作動について説明する。 Next, its operation will be explained.
車高センサ３８により測定される車高が設定値
であるときには、開閉弁２２，３２及び３５は閉
じており、開閉弁２８は開いている。従つてこの
ときには、副空気室３０は主空気室９及び１０と
連通し、シヨツクアブソーバ１及び２の空気ばね
定数を小さくすべく作用している。このときリザ
ーブタンク２０の空気圧が所定値以下であること
が圧力センサ３９によつて検出されていれば、開
閉弁１８が開いており、またエアコンプレツサ１
３が作動してこれが発生する空気圧がリザーブタ
ンク２０に蓄圧される。圧力センサ３９によりリ
ザーブタンク２０の空気圧が所定値に達したこと
が検出されると、開閉弁１８が閉じ、またエアコ
ンプレツサ１３の作動が停止する。 When the vehicle height measured by the vehicle height sensor 38 is at the set value, the on-off valves 22, 32, and 35 are closed, and the on-off valve 28 is open. Therefore, at this time, the auxiliary air chamber 30 communicates with the main air chambers 9 and 10 and acts to reduce the air spring constants of the shock absorbers 1 and 2. At this time, if the pressure sensor 39 detects that the air pressure in the reserve tank 20 is below a predetermined value, the on-off valve 18 is open and the air compressor 1
3 is activated and the air pressure generated is stored in the reserve tank 20. When the pressure sensor 39 detects that the air pressure in the reserve tank 20 has reached a predetermined value, the on-off valve 18 closes and the operation of the air compressor 13 is stopped.
乗員の増大等により車載荷重が増大して車高が
設定値以下に低下し、これが車高センサ３８によ
つて検出されると、開閉弁２８，３２及び３５が
閉じ、開閉弁１８と２２が開弁する。これにより
リザーブタンク２０から主空気室９及び１０へ空
気圧が供給される。これによりリザーブタンク２
０の空気圧が所定値以下にまで低下するとエアコ
ンプレツサ１３が作動し、このエアコンプレツサ
よりも主空気室９及び１０へ空気圧が供給される
ようになる。主空気室９及び１０に空気圧が供給
され、これに伴いシヨツクアブソーバ１及び２の
通常実効長が増大して車高が設定値まで上昇する
と、開閉弁２２が閉じ、開閉弁３２が開く。この
とき開閉弁１８は開いたままで、開閉弁２８と３
５は閉じたままである。これによりリザーブタン
ク２０及びエアコンプレツサ１３より供給される
空気圧は副空気室３０へ供給される。圧力センサ
４０によつて測定される副空気室３０の空気圧が
圧力センサ４１によつて測定される主空気室９及
び１０の空気圧に等しくなると、開閉弁３２が閉
じ、開閉弁２８が開く。これにより副空気室３０
は再び主空気室９及び１０に連通し、シヨツクア
ブソーバ１及び２の空気ばね定数を低くすべく作
用する。 When the load on the vehicle increases due to an increase in the number of passengers, etc., and the vehicle height falls below the set value, and this is detected by the vehicle height sensor 38, the on-off valves 28, 32, and 35 are closed, and the on-off valves 18 and 22 are closed. Open the valve. As a result, air pressure is supplied from the reserve tank 20 to the main air chambers 9 and 10. This allows reserve tank 2
When the air pressure at 0 falls below a predetermined value, the air compressor 13 is activated, and air pressure is supplied to the main air chambers 9 and 10 from the air compressor. When air pressure is supplied to the main air chambers 9 and 10, and the normal effective lengths of the shock absorbers 1 and 2 increase accordingly, and the vehicle height rises to a set value, the on-off valve 22 closes and the on-off valve 32 opens. At this time, the on-off valve 18 remains open, and the on-off valves 28 and 3
5 remains closed. As a result, the air pressure supplied from the reserve tank 20 and the air compressor 13 is supplied to the sub-air chamber 30. When the air pressure in the auxiliary air chamber 30 measured by the pressure sensor 40 becomes equal to the air pressure in the main air chambers 9 and 10 measured by the pressure sensor 41, the on-off valve 32 closes and the on-off valve 28 opens. As a result, the auxiliary air chamber 30
again communicates with the main air chambers 9 and 10 and acts to lower the air spring constant of the shock absorbers 1 and 2.
このように、車高調整時には主空気室と副空気
室とを切離し、先ず主空気室の空気圧を車高が設
定値になるまで上昇させた後に、副空気室の空気
を上昇させ、主空気室と副空気室の空気圧が互い
に等しくなつたときその両者を再び連通させるよ
うになつているから、副空気室が設けられている
ことにより車高調整に要する時間が延長されるこ
とがなく、また副空気室は車高調整時以外にはシ
ヨツクアブソーバの空気ばね特性を調整すべく有
効に作用する。 In this way, when adjusting the vehicle height, the main air chamber and the auxiliary air chamber are separated, and the air pressure in the main air chamber is first raised until the vehicle height reaches the set value, then the air in the auxiliary air chamber is raised, and the main air chamber is When the air pressures in the chamber and the auxiliary air chamber become equal to each other, the two are communicated again, so the provision of the auxiliary air chamber does not extend the time required to adjust the vehicle height. Furthermore, the auxiliary air chamber functions effectively to adjust the air spring characteristics of the shock absorber at times other than when adjusting the vehicle height.
尚、上述の如き車高調整後にはエアコンプレツ
サ１３の作動と開閉弁１８の開閉により再びリザ
ーブタンク２０に空気圧が蓄圧される。 After the vehicle height adjustment as described above, air pressure is again accumulated in the reserve tank 20 by operating the air compressor 13 and opening/closing the on-off valve 18.
乗員の低下等により車載荷重が低下して車高が
設定値より高くなつた時には、開閉弁２２，２
８，３５が開かれ、主空気室９，１０及び副空気
室３０の空気圧がドレン管３６より排出され、そ
れら空気室の空気圧が低下することにより車高が
低下する。空気圧を排出することにより行なわれ
る車高の低下は比較的速く行なわれるので、主空
気室と副空気室の空気圧の排出が同時に行なわれ
て良く、またこれをより一層速くする必要がある
場合は、車高低下時、最初は開閉弁２２と３５の
みを開いて主空気室９及び１０の空気圧を所定値
まで低下された後、次に開閉弁２２を閉じ、開閉
弁３２を開いて副空気室３０の空気圧を排出し、
副空気室の空気圧が主空気室の空気圧まで低下し
た時に開閉弁２２と３２と３５とを閉じ、開閉弁
２８を開けば良い。 When the vehicle load decreases due to a decrease in the number of occupants, etc., and the vehicle height becomes higher than the set value, the on-off valves 22, 2
8 and 35 are opened, the air pressure in the main air chambers 9 and 10 and the sub air chamber 30 is discharged from the drain pipe 36, and the air pressure in these air chambers decreases, thereby lowering the vehicle height. Since the vehicle height is lowered relatively quickly by discharging the air pressure, the air pressure in the main air chamber and the auxiliary air chamber may be discharged at the same time, and if it is necessary to discharge the air pressure even faster, When the vehicle height is lowered, only the on-off valves 22 and 35 are first opened to reduce the air pressure in the main air chambers 9 and 10 to a predetermined value, and then the on-off valve 22 is closed, and the on-off valve 32 is opened to reduce the air pressure in the main air chambers 9 and 10 to a predetermined value. exhaust the air pressure in chamber 30;
When the air pressure in the auxiliary air chamber drops to the air pressure in the main air chamber, the on-off valves 22, 32, and 35 may be closed, and the on-off valve 28 may be opened.
以上に於ては本考案を特定の実施例について詳
細に説明したが、本考案はこれに限定されるもの
ではなく本考案の範囲内にて種々の実施例が可能
であることは当業者にとつて明らかであろう。 Although the present invention has been described in detail with respect to specific embodiments above, it will be appreciated by those skilled in the art that the present invention is not limited thereto and that various embodiments are possible within the scope of the present invention. It should be obvious.
添付の図は本考案による車輌用懸架装置の一つ
の実施例を示す概略構成図である。
１，２……シヨツクアブソーバ、３，４……ピ
ストンロツド、５，６……アブソーバシリンダ、
７，８……アウタカバーシエル、９，１０……主
空気室、１１，１２……ダイヤフラム、１３……
エアコンプレツサ、１４……導管、１５……エア
ドライヤ、１６，１７……導管、１８……開閉
弁、１９……導管、２０……リザーブタンク、２
１……導管、２２……開閉弁、２３……導管、２
４……継手、２５，２６，２７……導管、２８…
…開閉弁、２９……導管、３０……副空気室、３
１……導管、３２……開閉弁、３３，３４……導
管、３５……開閉弁、３６……ドレン管、３７…
…制御装置、３８……車高センサ、３９〜４１…
…圧力センサ。
The attached figure is a schematic diagram showing one embodiment of a vehicle suspension system according to the present invention. 1, 2...Shock absorber, 3, 4...Piston rod, 5, 6...Absorber cylinder,
7, 8... Outer cover shell, 9, 10... Main air chamber, 11, 12... Diaphragm, 13...
Air compressor, 14... conduit, 15... air dryer, 16, 17... conduit, 18... on-off valve, 19... conduit, 20... reserve tank, 2
1... Conduit, 22... On-off valve, 23... Conduit, 2
4...Joint, 25, 26, 27...Conduit, 28...
...Opening/closing valve, 29...Conduit, 30...Sub-air chamber, 3
1... Conduit, 32... On-off valve, 33, 34... Conduit, 35... On-off valve, 36... Drain pipe, 37...
...Control device, 38...Vehicle height sensor, 39-41...
...Pressure sensor.
Claims (1)
性を調整する副空気室と、前記主空気室へ空気圧
を供給する空気圧供給手段と、車高調整時には前
記主空気室と前記副空気室との連通を遮断する弁
とを有していることを特徴とする車輌用懸架装
置。 a main air chamber, a sub-air chamber communicating with the main air chamber to adjust air spring characteristics, an air pressure supply means for supplying air pressure to the main air chamber, and the main air chamber and the sub-air chamber when adjusting the vehicle height. A suspension system for a vehicle, comprising a valve that cuts off communication with the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14176781U JPS5845110U (en) | 1981-09-22 | 1981-09-22 | Vehicle suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14176781U JPS5845110U (en) | 1981-09-22 | 1981-09-22 | Vehicle suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5845110U JPS5845110U (en) | 1983-03-26 |
| JPS621763Y2 true JPS621763Y2 (en) | 1987-01-16 |
Family
ID=29934837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14176781U Granted JPS5845110U (en) | 1981-09-22 | 1981-09-22 | Vehicle suspension system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5845110U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58136808U (en) * | 1982-03-11 | 1983-09-14 | 三菱自動車工業株式会社 | air suspension system |
| JPS59180908U (en) * | 1983-05-23 | 1984-12-03 | カヤバ工業株式会社 | vehicle height adjustment device |
| JPS626817A (en) * | 1985-07-02 | 1987-01-13 | Mazda Motor Corp | Suspension device for automobile |
| DE10006024C1 (en) * | 2000-02-11 | 2001-10-25 | Continental Ag | Method for filling pressure chambers of level regulator used in car suspension comprises feeding hydraulic fluid from reservoir to chambers while pressure difference exceeds threshold value and intermittently afterwards |
-
1981
- 1981-09-22 JP JP14176781U patent/JPS5845110U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5845110U (en) | 1983-03-26 |
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