JPH02133219A - Air suspension system control method - Google Patents
Air suspension system control methodInfo
- Publication number
- JPH02133219A JPH02133219A JP28527788A JP28527788A JPH02133219A JP H02133219 A JPH02133219 A JP H02133219A JP 28527788 A JP28527788 A JP 28527788A JP 28527788 A JP28527788 A JP 28527788A JP H02133219 A JPH02133219 A JP H02133219A
- Authority
- JP
- Japan
- Prior art keywords
- air
- vehicle height
- vehicle
- air suspension
- suspension system
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 7
- 230000035939 shock Effects 0.000 claims description 16
- 239000006096 absorbing agent Substances 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 108010082401 thymocyte interaction modulation factor Proteins 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/25—Stroke; Height; Displacement
- B60G2400/252—Stroke; Height; Displacement vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/02—Retarders, delaying means, dead zones, threshold values, cut-off frequency, timer interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/20—Stationary vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自動車等の車輌における車高調整ａｔｔを備
えたエアサスペンシコンシステムの作動制御方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for controlling the operation of an air suspension system equipped with a vehicle height adjustment att in a vehicle such as an automobile.
（従来の技＆）
従来の自動車用エアサスペンションシステムは１周知の
如く、積載画用の変動例えば乗ｔ１の乗降などによる小
高の変化に対して、各重輪のエアシｉツクアソソーハ内
の圧縮空気な給排制御することにより、常にＩＩＬ高を
一定に保つ調整機能を有している。(Conventional Techniques &) As is well known, conventional air suspension systems for automobiles use compressed air in the air suspension system of each heavy wheel to respond to changes in load, such as slight changes in height due to getting on and off the vehicle. It has an adjustment function that always keeps the IIL height constant by controlling the supply and discharge.
そこで、このようなエアサスペンションシステムからな
る作動装首（第３ ｔｇ参照）を備えた４ｊ輌では、先
ず、空車状態から人か東−トすることによる車体の増荷
東て、これを支持するエアショウクアブソーハか縮む。Therefore, in a 4J vehicle equipped with an operating head (see 3rd tg) consisting of such an air suspension system, the first step is to increase the load on the vehicle body by moving people from an empty state to support this. Air shock absorber shrinks.
この状ｆＥを検知した−１（晶センサ（１，４示せず）
からは・Ｉ（高低ドを示す信号かコントローラ（図示せ
ず）に送られこれによりコンプレッサｌへ始動信号か出
力される。該コンプレッサｌの始動と同時に各車軸に対
応するレヘリンクバルブ２．２・・・も前記コントロー
ラからの信号て開弁し、前記コンプレ・ンサｌからの圧
搾空気をドライヤー４を介して各エアショックアブ°ソ
ーハ３，３・・・に送り込む。This state fE was detected -1 (crystal sensor (1, 4 not shown)
From I, a signal indicating high or low is sent to the controller (not shown), which outputs a start signal to the compressor I. At the same time as the start of the compressor I, the rehelink valve 2.2 corresponding to each axle ... opens in response to a signal from the controller, and compressed air from the compressor 1 is sent to each air shock absorber 3, 3, . . . via the dryer 4.
これによって、車高か徐々に復帰し、予め設定したｊｆ
ｉ高位置に達すると、これを検知した前記センサからの
信号で前記コントローラによる各作動９吟を中断させて
、＋ｎＩ記コンプレッサｌを停止させると共に、レベリ
ングバルブ２．２・・・を閉しさせる。As a result, the vehicle height gradually returns to the preset height.
When the high position i is reached, a signal from the sensor that detects this interrupts each operation by the controller, stops the compressor l, and closes the leveling valves 2.2... .
そして、このような制御動作は乗車状態から人か降車す
るなとして車体首玉か軽くなった際にも行われる。即ち
、！］（高センサか車高上昇を検知すると、これよりコ
ントローラを経てボ１記コンブレウサ１のバイパス路中
に設けた排気バルブ５に制御信号か′ｊえられ、これを
開弁させると共に、前記レベリングバルブ２，２・・・
も制御信号を送って、これを開かせる。Such a control operation is also carried out when the head of the vehicle becomes lighter due to someone being in the vehicle and preventing someone from getting off the vehicle. That is,! ] (When the height sensor detects an increase in the vehicle height, a control signal is sent from the controller to the exhaust valve 5 provided in the bypass path of the combustor 1, which opens the valve and also controls the leveling. Valve 2, 2...
also sends a control signal to open it.
従って、各エアショックアブソーバ３．３・・・内の圧
縮空気かドライヤー４を通してフィルター６から大気中
に放出される。Therefore, the compressed air in each air shock absorber 3.3... is discharged into the atmosphere from the filter 6 through the dryer 4.
これによって、エアショックアブソーバ３３・・・内か
減圧され、これに応じてこれ等エアショックアブソーバ
３，３・・・縮むので。As a result, the pressure inside the air shock absorbers 33 is reduced, and accordingly, the air shock absorbers 3, 3... are contracted.
車高が徐々に低くなり、予め設定した高さ位置になると
、前記同様に車高センサによる検出信号で、先の排気バ
ルブ５及びレベリングバルブ２．２・・・を閉して、そ
のときどきの車高を一定の範囲域に保持する。When the vehicle height gradually lowers and reaches a preset height position, the exhaust valve 5 and leveling valve 2.2... are closed based on the detection signal from the vehicle height sensor as described above, and the Maintain vehicle height within a certain range.
かかるエアサスペンシコンシステムの１（（高調整動作
のフローチャートを第２図に示す。A flowchart of the high adjustment operation of such an air suspension system is shown in FIG.
（発明が解決しようとする課Ｘ＆ｉ）
ところで、１−述の従来システムによると、第２Ｌ４示
のフローチャートに示す如く、走行停止トによる駐車時
にイグニッションスイッチをＯＦＦにした後の所定時間
（例えば３０秒）経過した時点て、そのときの車高か高
いか又は低いかを車高センサて判定し、高い場合にのみ
高いｉＦ軸側のレベリングバルブ２と排気バルブ５とを
一定時間の間（例えば３（）秒間）開放して、エアショ
ックアブソーバ３内の圧縮空気を放出し、これによって
目標車高イめに至らない場合には、再度の一定時間放出
を反復した後は、車体か定められた車高位置まて降下し
ない場合ても、前記レベリングバルブ２及び排気バルブ
５を閉鎖するｔｖ制御を行っていた。(Problem X&i to be Solved by the Invention) By the way, according to the conventional system described in 1-1, as shown in the flowchart shown in No. 2L4, a predetermined period of time (for example, 30 seconds) after the ignition switch is turned OFF when parking due to the vehicle stop. ), the vehicle height sensor determines whether the vehicle height at that time is high or low, and only when the vehicle height is high, the leveling valve 2 and exhaust valve 5 on the high iF axis side are connected for a certain period of time (for example, 3 () seconds) to release the compressed air in the air shock absorber 3, and if this does not reach the target vehicle height, repeat the release for a certain period of time again, and then the vehicle body will be raised to the specified level. Even when the vehicle height is not lowered, TV control is performed to close the leveling valve 2 and exhaust valve 5.
そして、この作動制御により、停止時にイクニッシ１ン
スイッチをＯＦＦにした場合の４ｉ高が１１標高さ位置
か若しくはややそれ以トの高さ位置の状態のまま放ｎさ
れることとなり、エアショックアブソーバ３，３・・・
にその伸び切りによる無理な力か加わり、これ等ショッ
クアブソーバ３，３・・・の故障の原因となることを防
いでいた。Due to this operation control, the 4i height when the starter switch is turned OFF at the time of stopping is left at the 11th altitude position or slightly higher, and the air shock absorber 3, 3...
This prevents excessive force from being applied to the shock absorbers 3, 3, etc. due to the full extension, which could cause failure of the shock absorbers 3, 3, and so on.
しかし、乗降する人員が多いとき、即ち、！１（体荷屯
の変化か大きいときには１重体荷２πの増加て＋１体が
大きく沈下し、エアショ・・ｌクアブソーへ３．３・・
・の縮み槌か大きく、これに対抗して、車高位置を目標
値に戻すためには、コンプレッサんＯ動作によりエアシ
ョックアブソーバ３．３・・・に大量の圧搾空気を送り
込む必要かあり、該コンプレッサの長時間作動を必要と
する。However, when there are many people getting on and off, that is,! 1 (When the change in body load is large, the single body load increases by 2π and the body sinks by +1, causing the air shock...l to move to Kuabsaw 3.3...
・The compression hammer is large, and in order to counter this and return the vehicle height position to the target value, it is necessary to send a large amount of compressed air to the air shock absorber 3.3 by operating the compressor. This requires long-term operation of the compressor.
その結果、コンプレッサｌの耐久性を著しく悪化させる
と共に、バッテリーの放電ロスが大きく、シかも、この
間の発１ｊ待ちを強いられていた。As a result, the durability of the compressor 1 is significantly deteriorated, and there is a large discharge loss of the battery, and the user is forced to wait for the battery to be discharged during this period.
そこで１本発明は、車輌用エアサスベンジジンにステム
において、該システムの作動制御、殊に駐車に至る段階
の作動を従来のそれに対して特異にすることによって、
上記従来手段における５Ｉ題を解決することを目的とす
る。Accordingly, one aspect of the present invention is to provide a stem for an air suspension system for a vehicle, by making the operation control of the system, especially the operation at the stage leading to parking, unique from that of the conventional system.
It is an object of the present invention to solve the 5I problem in the above conventional means.
（課題を解決するための１段）
しかして、かかる］１的を達成するために、未発１１１
では、車高センサて検知した車高の高低変化に対応して
エアショックアブソーバ内に圧搾空気を給排して、車高
を一定に保つように作動するエアサスペンションシステ
ムにおいて、エンジン停止１−による該システムの作動
停止時に、前記−１ｐ高センサて検知するそのときの車
高位置か［Ｊ検車高位置よりも異常に高い位置にあると
きの前記圧搾空気の排出動作を介して、［１標！１（高
位置よりも高い位置て前記排出を中止するように制御し
てなるエアサスペンシコンシステム制御方法を提案する
。(1 step to solve the problem) Therefore, in order to achieve the first goal,
In the air suspension system, which operates to maintain a constant vehicle height by supplying and discharging compressed air into an air shock absorber in response to changes in vehicle height detected by a vehicle height sensor, When the system stops operating, the current vehicle height position detected by the -1p height sensor or the [1 standard] is determined through the discharge operation of the compressed air when the vehicle is at a position abnormally higher than the J inspection vehicle height position. ! 1 (Proposes an air suspension system control method in which the ejection is stopped at a position higher than the high position.
（作 用）
エンジン停止によるイグニッションスーイ・ンチのＯＦ
Ｆ操作て、エアサスペンションシステムかそれまての作
動状態から非作動の状態に移行する。(Function) Ignition switch off due to engine stop
F operation changes the air suspension system from its operating state to its inactive state.
この移行時に、乗員降ｉ１ｊなどによる！ｊｉ体荷屯の
軽減て、車高が目標中高位置よりも異常に高い位置にあ
るとき、一定の時間の間たけエアショックアブソーバ内
の圧縮空気を放出する第１段階と、これを経て未た車高
か異常に高い位置にある場合以外はヒ記圧縮空気の放出
を中止する第２段階との制御によって、該システムは管
理される。During this transition, due to crew disembarkation i1j, etc.! ji When the vehicle height is abnormally higher than the target mid-height position due to reduction of body load, the first step is to release the compressed air in the air shock absorber for a certain period of time, and after this, the The system is managed by a second stage of control in which the release of compressed air is stopped unless the vehicle height is abnormally high.
そして、この制御方法によれば、駐車中の車体は多分に
目標値よりも高い車高位置に保持されることとなる。According to this control method, the parked vehicle body is maintained at a vehicle height position that is probably higher than the target value.
（￥施例） 次に１本発明の好ましい実施例について説明する。(¥Example) Next, a preferred embodiment of the present invention will be described.
第１図は本発明の一実施例における作動状態を示すフロ
ーヂャートて、前記第３図示のエアサスペンションシス
テムのｕ１成下に、イクニッションスイッチＯＮに伴う
該システムの作動開始（５ＴＡＲＴ）から通常の走行状
態に至る間の制御動作を、従来のそれと回しくシ、殊に
、東輌停重接の駐車状ｆｌに至る間の制御動作か、Ａ端
から（イタニッションＯＮ→ＯＦＦへ切換わったか？）
のｒ（別で、ＯＮのイグニウションスイッチか以曲から
継続してＯＦＦ状態にある駐車継続状態を除外して、切
換ねったことを示すＹＥＳの判定て、（ＴＩＭＦ、Ｒ）
動作に至り、一定時間（例えば、３０秒間）の乗員降！
１（等による重体荷重の安定期を待って車体状況が（目
標車高か？）を゛月別し、特別な状況下のＹＥＳ状態て
作動終了（Ｆ、Ｎ Ｄ ）する場合の他は、 ＮＯの判
別て（目標より以［−に高し・か？）を′１′４断して
、目標車高よりも高い位置ではあるか異常に高い位置て
もないＮ Ｏ’Ｆ４定の場合に作動終了する一方で、異
常に高いと判定されるＹＥＳで（排気バルブＯＮ）次い
で（レベリングバルブＯＮ）の両バルブ開放動作を経て
、Ｂ端から（目標より高いか？）の判別て、目標車高イ
４よりも高くない即ち未だ異常に高い゛Ｆ１定ＮＯて、
前記バルブ開放作動を循環持続した後に、目標車高値よ
りも高い状！ムまて降下したＹＥＳ ’ｒｌ定で、前記
両バルブを閉鎖する（排気バルブＯＦＦ ）か（レベリ
ングバルブＯＦＦ ）動作を経て作動を終了（ＥＮＤ）
する。FIG. 1 is a flowchart showing the operating state in one embodiment of the present invention, in which the air suspension system shown in FIG. The control operation during the period leading up to the running state should be changed from that of the conventional one.In particular, the control operation during the period leading to the parking state fl with the east vehicle stopped, or whether the control operation was changed from the A end (internment ON → OFF)? )
r (Separately, exclude the parking continuation state where the ignition switch is ON or has been in the OFF state since then, and determine YES to indicate that the switch has not been switched, (TIMF, R)
The crew exits for a certain period of time (for example, 30 seconds)!
1) Wait for the heavy load to stabilize due to etc. and determine the vehicle body condition (target vehicle height?) by month, and then select NO unless the operation is terminated (F, N D) with YES under special circumstances. (Is it higher than the target?) and determines whether the vehicle is at a higher position than the target vehicle height or not abnormally high. While the operation is completed, if YES is determined to be abnormally high, both valves are opened (exhaust valve ON) and then (leveling valve ON), and from the B end (is it higher than the target?), the target vehicle is The F1 constant NO is not higher than high A4, that is, it is still abnormally high.
After continuing to cycle the valve opening operation, the vehicle height is higher than the target vehicle height! At the YES 'rl constant when the temperature drops, both valves are closed (exhaust valve OFF) or (leveling valve OFF) the operation is completed (END).
do.
これによって、走行などのエンジン稼動状態を経た停止
に後の駐−１時に、殆どの場合に車体の高さを［１標車
高値よりも高い状ｆムに置くことか出来、このときのエ
アショツクアブソーバ３．３・・・かうの圧縮空気の放
出を極力少なくして、その内圧を比較的高い状態て保留
しておくことか出来る。As a result, in most cases, when the vehicle is parked after stopping after the engine is running, such as driving, the height of the vehicle can be placed at a position higher than the height of the vehicle, and the air pressure at this time is Shock absorber 3.3... It is possible to reduce the release of compressed air as much as possible and keep its internal pressure in a relatively high state.
（発明の効果）
このように１本発明方法によれば、車高調整ｍｆｌを備
えたエアサスペンションシステムにおいて、エンジン停
ローによる該システムの作動外＋１１時に ｉｌ高七ン
サて検知するそのときの中高位置が１１標中高位置より
も異品に高い（７置にあるときの圧搾空気の放出動作を
介して、ＩＪ漂中高位置よりも晶い位置で前記放出を中
１１＝するように制”ＩＪＩするようになしたので、
、ｉｔ定走行どのエンジン稼動状！Ｅを鮮だ後のエンジ
ン停止ｌ−て駐・１（状態に至る際に、従来「段による
場合の１１標！１ｊ高値又はこれに近い高い位置まて陵
ドする！１（体を、殆どの場合に［１標屯高よりも高い
（ｑ置て保留させることか出来て、これによって、次回
の乗ｉＩ時にＪＡｍ、荷重か少ない例えば１名乗・１（
の場合などは１乗車しても未た１置標重高よりら高い位
置を保っており、そこて、エンジン始動後に［１標車高
になるまてレベリングバルブＪ３よび排気ハルツを開放
した圧縮′／ｐ気の放出動作たけで良く°Ｃ，コンプレ
・ンサの不要な作動を伴わず、そのためのバッテリー故
′市流を消費することなく、かつ、該コンプレッサの耐
久性を向上させる１−で有効である。(Effects of the Invention) As described above, according to the method of the present invention, in an air suspension system equipped with a vehicle height adjustment mfl, when the system is out of operation due to engine stop and low, the il height sensor detects the current middle height. Through the operation of releasing compressed air when the position is abnormally higher than the 11th elevation position (7th position), the release is controlled to be 11= at a higher position than the IJ drifting height position. I decided to do this, so
, it constant driving, which engine operation status! After E is stopped, the engine is stopped and parked. 1 (When reaching the condition, the conventional method is to stop at the 11th mark! 1j at the high price or a high position close to it! In the case of [1 mark height higher than (q), it is possible to put it on hold, and by this, at the next multiplication iI, JAm, the load is less, for example, 1 person multiplication 1 (
In such cases, the vehicle remains at a position higher than the altitude even after one ride, and after starting the engine, the leveling valve J3 and the exhaust valve are opened until the vehicle height reaches one altitude. It is possible to release just enough air/p gas at °C, without unnecessary operation of the compressor, without consuming battery power, and improving the durability of the compressor. It is valid.
また１次回乗１ｊ時に植栽荷重の変化か大きい例えば５
名乗車などの場合には、乗用によって＋ｉｊ高は目標ｆ
めよりも低い位置にはなるか、その！ト体沈降騎は少な
いので、エンジン始動後のコンプレ・ソサ駆動による小
高目標値へ補正する時間か短くて良く、東高調整のため
の待ち時間か短いことは素より、該コンプレッサの作動
時間も短いために、その耐久性を向上させる上で有効に
作用する。Also, at the time of the first multiplication 1j, the change in planting load is large, for example, 5
In the case of a famous car, etc., the +ij height is the target f depending on the ride.
Will it be lower than me? Since there are few cases of body settling, the time required to correct the slight elevation target value by the compressor/sodium drive after engine startup is short, and the waiting time for east height adjustment is short, as well as the operating time of the compressor. Because it is short, it works effectively in improving its durability.
４ 、１ｇ面の筒中な説明
第１ Ｌｉ２は本発明方法の一実施例におけるシステム
作動を示すフローチャート、第２図は従来１′−段にお
けるフローチャート、第３１′Ａはエアサスペンション
システムの一例を示す構成図である。4. In-cylinder explanation of the 1g plane 1st Li2 is a flowchart showing the system operation in one embodiment of the method of the present invention, Fig. 2 is a flowchart in the conventional 1'-stage, and 31'A shows an example of an air suspension system. FIG.
・コンプレッサ ・レベリングバルブ ・エアショックアブソーバ ・排気バルブ ·compressor ・Leveling valve ・Air shock absorber ・Exhaust valve
Claims (1)
ョックアブソーバ内に圧搾空気を給排して、車高を一定
に保つように作動するエアサスペンションシステムにお
いて、エンジン停止による該システムの作動停止時に、
前記車高センサで検知するそのときの車高位置が目標車
高位置よりも異常に高い位置にあるときの前記圧搾空気
の排出動作を介して、目標車高位置よりも高い位置で前
記排出を中止するように制御してなることを特徴とする
エアサスペンションシステム制御方法In an air suspension system that operates to maintain a constant vehicle height by supplying and discharging compressed air into an air shock absorber in response to changes in vehicle height detected by a vehicle height sensor, the system is activated when the engine is stopped. When stopped,
The compressed air is discharged at a position higher than the target vehicle height position through the operation of discharging the compressed air when the current vehicle height position detected by the vehicle height sensor is abnormally higher than the target vehicle height position. A method for controlling an air suspension system, characterized in that the air suspension system is controlled to stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28527788A JPH02133219A (en) | 1988-11-11 | 1988-11-11 | Air suspension system control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28527788A JPH02133219A (en) | 1988-11-11 | 1988-11-11 | Air suspension system control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133219A true JPH02133219A (en) | 1990-05-22 |
Family
ID=17689430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28527788A Pending JPH02133219A (en) | 1988-11-11 | 1988-11-11 | Air suspension system control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2740394A1 (en) * | 1995-10-26 | 1997-04-30 | Bosch Gmbh Robert | SYSTEM FOR REGULATING THE PLATE OF A VEHICLE |
-
1988
- 1988-11-11 JP JP28527788A patent/JPH02133219A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2740394A1 (en) * | 1995-10-26 | 1997-04-30 | Bosch Gmbh Robert | SYSTEM FOR REGULATING THE PLATE OF A VEHICLE |
| FR2766426A1 (en) * | 1995-10-26 | 1999-01-29 | Bosch Gmbh Robert | VEHICLE PLATE REGULATION SYSTEM |
| FR2766425A1 (en) * | 1995-10-26 | 1999-01-29 | Bosch Gmbh Robert | SYSTEM FOR REGULATING THE PLATE OF A VEHICLE |
| US6061615A (en) * | 1995-10-26 | 2000-05-09 | Knorr-Bremse Systeme Fur Nutzfahrzeuge Gmbh | Vehicle body level control system |
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