JPH0321365B2 - - Google Patents
Info
- Publication number
- JPH0321365B2 JPH0321365B2 JP1682484A JP1682484A JPH0321365B2 JP H0321365 B2 JPH0321365 B2 JP H0321365B2 JP 1682484 A JP1682484 A JP 1682484A JP 1682484 A JP1682484 A JP 1682484A JP H0321365 B2 JPH0321365 B2 JP H0321365B2
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- air
- wheel
- vehicle height
- passage
- 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
- 238000001035 drying Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/0408—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics details, e.g. antifreeze for suspension fluid, pumps, retarding means per se
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Pressure Circuits (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、エアスプリングのエア封入部に対す
るエアの給排により車高調整を行なうようにした
車両の車高調整装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a vehicle height adjustment device for a vehicle, which adjusts the vehicle height by supplying and discharging air to and from an air-filled portion of an air spring.
（従来技術）
従来、第１図に示す如く、コンプレツサー１、
ドライヤ２Ｆ，２Ｒ、切替バルブ３ｌ，３ｒ４
ｌ，４Ｒを介して、圧縮エアを前左輪Fl、前右輪
Fr、後左輪Rl、後右輪Rrの各エアスプリング５
ｌ，５ｒ，６ｌ，６ｒのエア封入部に供給して車
高を上げる一方、車高を下げるときには、排気バ
ルブ７Ｆ，７Ｒを開き、ドライヤ２Ｆ，２Ｒを介
してエア封入部内のエアを外部に排出するように
した車高調整装置が提案されている。（実開昭58
−98210号公報参照）。(Prior Art) Conventionally, as shown in FIG.
Dryer 2F, 2R, switching valve 3l, 3r4
Compressed air is supplied to the front left wheel Fl and the front right wheel through L and 4R.
Air springs 5 for Fr, rear left wheel Rl, and rear right wheel Rr
1, 5r, 6l, and 6r to raise the vehicle height. When lowering the vehicle height, the exhaust valves 7F and 7R are opened and the air in the air sealed portions is exhausted to the outside via the dryers 2F and 2R. A vehicle height adjustment device that discharges water has been proposed. (Jitsukai 1978
-Refer to Publication No. 98210).
ところで、ドライヤ２Ｆ，２Ｒを介して各エア
スプリング５ｌ〜６ｒのエア封入部に供給された
圧縮エアを再びドライヤ２Ｆ，２Ｒを介して外部
に排出するのは、ドライヤ２Ｆ，２Ｒの再生とい
う効果もあるが、特に排気する圧縮エア中の水分
をカツトすることにより、排気バルブ７Ｆ，７Ｒ
の排気口から排出される圧縮エアに含まれている
水分が、排出口の排気流に逆行して排気口から吸
い込まれ、過剰な水分でバルブなどがさびるのを
防止するためである。 By the way, discharging the compressed air supplied to the air sealing portion of each air spring 5l to 6r via the dryers 2F, 2R to the outside via the dryers 2F, 2R also has the effect of regenerating the dryers 2F, 2R. However, by cutting out moisture in the compressed air to be exhausted, exhaust valves 7F and 7R
This is to prevent moisture contained in the compressed air discharged from the exhaust port from being sucked in from the exhaust port against the exhaust flow at the exhaust port and rusting the valves etc. due to excessive moisture.
一方、上記のような構成の車高調整装置におい
て、土砂などですべつて車輪が空転したとき、前
左輪Flと後右輪Rr、または前右輪Frと後左輪Rl
のように、対角線上で対称な車輪の車高を一時的
に上げて駆動力をアツプさせることにより、脱出
を容易にするためのスタツク脱出回路を採用した
場合には、さらにスタツク脱出用の切替バルブを
いくつか必要とする。 On the other hand, in the vehicle height adjustment device configured as described above, when all the wheels are spinning due to dirt etc., the front left wheel Fl and the rear right wheel Rr, or the front right wheel Fr and the rear left wheel Rl
If a stack escape circuit is adopted to facilitate escape by temporarily raising the vehicle height of diagonally symmetrical wheels to increase the driving force, the switch for stack escape may be added. Requires several valves.
そして、通常の車高調整時のエア排出のときは
勿論、このスタツク脱出のための車高調整時のエ
ア排出のときにも、ドライヤを介してエアを排出
することが上述の理由から要望されるが、この場
合には、スタツク脱出用の切替バルブと上記切替
バルブ３ｌ〜４ｒ、排気バルブ７Ｆ、７Ｒとをど
のように関連させれば合理的に制御できるのかが
問題となる。 For the reasons mentioned above, it is desired to discharge air through a dryer, not only when discharging air during normal vehicle height adjustment, but also when discharging air during vehicle height adjustment to escape from the stack. However, in this case, the problem is how to relate the switching valve for stack escape, the switching valves 3l to 4r, and the exhaust valves 7F and 7R for rational control.
（発明の目的）
本発明は、上記要望に応えるためになされたも
ので、通常の車高調整時及びスタツク脱出のため
の車高調整時の双方において、ドライヤを介して
エアを排出することを実現化した車高調整装置を
提供することを目的とするものである。(Purpose of the Invention) The present invention has been made in response to the above-mentioned needs, and it is possible to discharge air through a dryer both during normal vehicle height adjustment and during vehicle height adjustment for escaping from a stack. The purpose of this invention is to provide a realized vehicle height adjustment device.
（発明の構成）
このため本発明は、第３図の発明構成図に示す
ように、エアを圧縮するためのコンプレツサー１
９と、該コンプレツサー１９の出口に接続され、
コンプレツサー１９で圧縮されたエアを乾燥する
ためのドライヤ２０と、該ドライヤ２０とコンプ
レツサー１９との間に配置され、圧縮エアを排気
する排気バルブ１７と、車両の前後輪の夫々左右
に設けられ、バルブ手段を介してドライヤ２０の
出口に接続され、圧縮エアの給排気によつて車高
調整を行なうエアスプリング２６ｌ，２６ｒ，２
７ｌ，２７ｒとから成る車高調整装置において、
上記ドライヤ２０の出口が前輪用通路２８Ｆと
後輪用通路２８Ｒとに分岐され、
前輪用通路２８Ｆは、第５切替バルブ３５を介
して前左輪用エアスプリング２６ｌに接続され、
後輪用通路２８Ｒは、第６切替バルブ３６を介
して後左輪用エアスプリング２７ｌに接続され、
前輪用通路２８Ｆの第５切替バルブ３５の出口
側から分岐した第１分岐通路２８ａは、第１切替
バルブ３１と第３切替バルブ３３を介して後左輪
用エアスプリング２７ｌに接続され、
後輪用通路２８Ｒの第６切替バルブ３６の出口
側から分岐した第２分岐通路２８ｂは、第２切替
バルブ３２と第４切替バルブ３４を介して前左輪
用エアスプリング２６ｌに接続され、
第１切替バルブ３１と第３切替バルブ３３との
間から分岐した第３分岐通路２８ｃは、前右輪用
エアスプリング２６ｒに接続され、
第２切替バルブ３２と第４切替バルブ３４との
間から分岐した第４分岐通路２８ｄは、後右輪用
エアスプリング２７ｒに接続されていることを特
徴とするものである。(Structure of the Invention) Therefore, the present invention provides a compressor 1 for compressing air, as shown in the block diagram of the invention in FIG.
9 and an outlet of the compressor 19,
a dryer 20 for drying the air compressed by the compressor 19; an exhaust valve 17 disposed between the dryer 20 and the compressor 19 to exhaust the compressed air; Air springs 26l, 26r, 2 are connected to the outlet of the dryer 20 via valve means and adjust the vehicle height by supplying and discharging compressed air.
7l and 27r, the outlet of the dryer 20 is branched into a front wheel passage 28F and a rear wheel passage 28R, and the front wheel passage 28F is connected to a front left wheel passage through a fifth switching valve 35. The rear wheel passage 28R is connected to the air spring 26l, and the rear wheel passage 28R is connected to the rear left wheel air spring 27l via the sixth switching valve 36. The branch passage 28a is connected to the rear left wheel air spring 27l via the first switching valve 31 and the third switching valve 33, and is a second branch passage branched from the outlet side of the sixth switching valve 36 of the rear wheel passage 28R. 28b is connected to the front left wheel air spring 26l via the second switching valve 32 and the fourth switching valve 34, and the third branch passage 28c branched from between the first switching valve 31 and the third switching valve 33 is , the fourth branch passage 28d, which is connected to the front right wheel air spring 26r and branched from between the second switching valve 32 and the fourth switching valve 34, is connected to the rear right wheel air spring 27r. This is a characteristic feature.
そして、通常の高車調整時においては、前輪の
み車高調整するときは、第１、第５切替バルブ３
１，３５を用い、後輪のみ車高調整するときは第
２、第６切替バルブ３２，３６を用いて、夫々ド
ライヤ２０を介してエアを給排する一方、スタツ
ク脱出のための車高調整時においては、前左輪―
後右輪の車高調整するときは、第４、第５切替バ
ルブ３４，３５を用い、前右輪―後左輪の車高調
整するときは第３、第６切替バルブ３３，３６を
用いて、夫々ドライヤ２０を介してエアを給排す
るようになつている。 During normal vehicle height adjustment, when adjusting the vehicle height of only the front wheels, the first and fifth switching valves 3
1 and 35, and when adjusting the vehicle height only for the rear wheels, the second and sixth switching valves 32 and 36 are used to supply and discharge air through the dryer 20, respectively, while adjusting the vehicle height for getting out of the stuck. Sometimes the front left wheel -
When adjusting the vehicle height of the rear right wheel, use the fourth and fifth switching valves 34 and 35, and when adjusting the vehicle height between the front right wheel and the rear left wheel, use the third and sixth switching valves 33 and 36. , air is supplied and discharged through a dryer 20, respectively.
（発明の効果）
本発明によれば、第１〜第６切替バルブを用い
て切替制御することにより、通常の車高調整時も
スタツク脱出のための車高調整時も、すべてドラ
イヤを介してエアを排出することができるので、
ドライヤの再生効果が促進され寿命が向上すると
ともに、従来のように前輪側と後輪側に、夫々専
用のドライヤを設ける必要がなく、１個のドライ
ヤで足りるからコスト安にもなる。(Effects of the Invention) According to the present invention, by performing switching control using the first to sixth switching valves, both normal vehicle height adjustment and vehicle height adjustment for escaping from a stack are performed through the dryer. Air can be discharged, so
The regeneration effect of the dryer is promoted and its lifespan is improved, and there is no need to provide separate dedicated dryers for the front and rear wheels as in the past, and only one dryer is required, resulting in lower costs.
（実施例）
第２図に示すように、車両の車高調整装置は、
例えば車両エンジンルーム内に、コンプレツサー
ユニツト１３と、リザーブタンクユニツト１４
と、バルブユニツト１５とが配置され、車両のダ
ツシユボード内に、コントロールユニツト１６が
配置されて基本構成される。(Example) As shown in Fig. 2, the vehicle height adjustment device is
For example, in the engine room of a vehicle, there is a compressor unit 13 and a reserve tank unit 14.
and a valve unit 15 are disposed, and a control unit 16 is disposed within the dash board of the vehicle.
上記コンプレツサーユニツト１３は、モータ１
８によるコンプレツサー１９の回転で圧縮エア
を、ドライヤ２０を介して送り出すようになつて
いる。該ドライヤ２０は、エンジンルーム内にエ
グゾーストマニホールドの近くに配置すると、エ
ア乾燥効果が向上するので好ましい。 The compressor unit 13 has a motor 1
Compressed air is sent out through a dryer 20 by the rotation of the compressor 19 by the compressor 8. It is preferable to arrange the dryer 20 in the engine room near the exhaust manifold because this improves the air drying effect.
上記ドライヤ２０とコンプレツサー１９との間
には、排気バルブ１７が設けられる。 An exhaust valve 17 is provided between the dryer 20 and the compressor 19.
上記リザーブタンクユニツト１４は、ドライヤ
２０から送り出された圧縮エアを切替バルブ２３
を介してリザーブタンク２１に貯めておくもの
で、該リザーブタンク２０に対しては安全バルブ
２２が設けられる。なお、２４は圧力センサであ
る。 The reserve tank unit 14 transfers the compressed air sent out from the dryer 20 to a switching valve 23.
A safety valve 22 is provided to the reserve tank 20. Note that 24 is a pressure sensor.
上記バルブユニツト１５は、車両の前左輪用エ
アスプリング２６ｌ、前右輪用エアスプリング２
６ｒ、後左輪用エアスプリング２７ｌ、後右輪用
エアスプリング２７ｒの各エア封入部に対して設
けられる。 The valve unit 15 includes an air spring 26l for the front left wheel and an air spring 2 for the front right wheel of the vehicle.
6r, the rear left wheel air spring 27l, and the rear right wheel air spring 27r.
上記リザーブタンク２１からのエア通路（ドラ
イヤ２０の出口）２８は、前輪用通路２８Ｆと後
輪用通路２８Ｒとに分岐され、前輪用通路２８Ｆ
は、第５切替バルブ３５を介して前左輪用エアス
プリング２６ｌに接続され、後輪用通路２８Ｒ
は、第６切替バルブ３６を介して後左輪用エアス
プリング２７ｌに接続され、前輪用通路２８Ｆの
第５切替バルブ３５の出口側から分岐した第１分
岐通路２８ａは、第１切替バルブ３１と第３切替
バルブ３３を介して後左輪用エアスプリング２７
ｌに接続され、後輪用通路２８Ｒの第６切替バル
ブ３６の出口側から分岐した第２分岐通路２８ｂ
は、第２切替バルブ３２と第４切替バルブ３４を
介して前左輪用エアスプリング２６ｌに接続さ
れ、第１切替バルブ３１と第３切替バルブ３３と
の間から分岐した第３分岐通路２８ｃは、前右輪
用エアスプリング２６ｒ接続され、第２切替バル
ブ３２と第４切替バルブ３４との間から分岐した
第４分岐通路２８ｄは、後右輪用エアスプリング
２７ｒに接続されている。 The air passage 28 from the reserve tank 21 (outlet of the dryer 20) is branched into a front wheel passage 28F and a rear wheel passage 28R.
is connected to the front left wheel air spring 26l via the fifth switching valve 35, and is connected to the rear wheel passage 28R.
is connected to the rear left wheel air spring 27l via the sixth switching valve 36, and the first branch passage 28a branched from the outlet side of the fifth switching valve 35 of the front wheel passage 28F is connected to the first switching valve 31 and the second switching valve 31. 3 Air spring 27 for the rear left wheel via the switching valve 33
A second branch passage 28b is connected to the rear wheel passage 28R and is branched from the outlet side of the sixth switching valve 36 of the rear wheel passage 28R.
A third branch passage 28c is connected to the front left wheel air spring 26l via the second switching valve 32 and the fourth switching valve 34, and is branched from between the first switching valve 31 and the third switching valve 33. A fourth branch passage 28d connected to the front right wheel air spring 26r and branched from between the second switching valve 32 and the fourth switching valve 34 is connected to the rear right wheel air spring 27r.
なお、３０，…，３０はチエツクバルブであ
る。 Note that 30, . . . , 30 are check valves.
上記コントロールユニツト１６は、各バルブ１
７，２２，２３，３１〜３６等を切替制御するた
めのもので、コントローラ３７に対して、メイン
スイツチ３８と車高切替スイツチ３９とスタツク
脱出用スイツチ４３とが設けられるとともに、前
輪用車高センサ４１と後輪用車高センサ４２とが
設けられる。 The control unit 16 includes each valve 1.
7, 22, 23, 31 to 36, etc., the controller 37 is provided with a main switch 38, a vehicle height changeover switch 39, and a stack escape switch 43. A sensor 41 and a rear wheel height sensor 42 are provided.
また、スタツク脱出回路の作動中は警報を発す
るワーニングブザー４４と、これを表示するデイ
スプレイ４５とが設けられる。 Furthermore, a warning buzzer 44 that issues an alarm while the stack escape circuit is in operation, and a display 45 that displays this are provided.
さらに、連速センサ４６が設けられ、車速に応
じて車高を調整するようになつている。 Furthermore, a continuous speed sensor 46 is provided to adjust the vehicle height according to the vehicle speed.
上記のように車高調整装置を構成すれば、メイ
ンスイツチ３８をオンすると、リザーブタンクユ
ニツト１４の切替バルブ２３が切替わり、モータ
１８によるコンプレツサー１９の回転で圧縮エア
がドライヤ２０を介してリザーブタンク２１に貯
められる。 If the vehicle height adjustment device is configured as described above, when the main switch 38 is turned on, the switching valve 23 of the reserve tank unit 14 is switched, and the rotation of the compressor 19 by the motor 18 causes compressed air to flow through the dryer 20 to the reserve tank. It can be stored in 21.
そして、車高切替スイツチ３９または前輪用車
高センサ４１による検出信号でコントローラ３７
から前輪Fl、Frの車高上げの指令がでると、第
１、第５切替バルブ３１，３５が切替わり、リザ
ーブタンク２１からエア通路２８→前輪用通路２
８Ｆ→第５切替バルブ３５を介して前左輪用エア
スプリング２６ｌのエア封入部にエアが供給され
ると同時に、第５切替バルブ３５からさらに第１
切替バルブ３１を介して前右輪用エアスプリング
２６ｒのエア封入部に供給され、前輪Fl、Frの
車高が上がる。 Then, the controller 37 receives a detection signal from the vehicle height changeover switch 39 or the front wheel vehicle height sensor 41.
When a command to raise the vehicle height of the front wheels Fl and Fr is issued from
8F→Air is supplied to the air sealing part of the front left wheel air spring 26l via the fifth switching valve 35, and at the same time, air is supplied from the fifth switching valve 35 to the first switching valve 35.
The air is supplied to the air sealed portion of the front right wheel air spring 26r through the switching valve 31, and the vehicle height of the front wheels Fl and Fr is raised.
また、車高切替スイツチ３９または後輪用車高
センサ４２による検出信号でコントローラ３７か
ら後輪Rl、Rrの車高上げの指令がでると、第２、
第６切替バルブ３２，３６が切替わり、リザーブ
タンク２１からエア通路２８→後輪用通路２８Ｒ
→第６切替バルブ３６を介して後左輪用エアスプ
リング２７ｌのエア封入部にエアが供給されると
同時に、第６切替バルブ３６からさらに第２切替
バルブ３２を介して後右輪用エアスプリング２７
ｒのエア封入部にエアが供給され、後輪Rl、Rr
の車高が上がる。 Further, when a command to raise the vehicle height of the rear wheels Rl and Rr is issued from the controller 37 in response to a detection signal from the vehicle height changeover switch 39 or the rear wheel vehicle height sensor 42, the second
The sixth switching valves 32 and 36 switch, and from the reserve tank 21 to the air passage 28 → the rear wheel passage 28R
→At the same time, air is supplied to the air sealed portion of the rear left wheel air spring 27l via the sixth switching valve 36, and at the same time, air is further supplied from the sixth switching valve 36 to the rear right wheel air spring 27 via the second switching valve 32.
Air is supplied to the air sealing part of r, and the rear wheels Rl, Rr
The vehicle height will increase.
さらに、車高切替スチツチ３９または前、後輪
用車高センサ４１，４２による検出信号でコント
ローラ３７から前、後輪Fl、Fr、Rl、Rrの車高
を同時に上げる指令がでた場合も、上述と同様に
して、前、後輪Fl、Fr、Rl、Rrの車高が同時に
上がる。 Furthermore, if a command is issued from the controller 37 to raise the vehicle height of the front and rear wheels Fl, Fr, Rl, and Rr simultaneously by a detection signal from the vehicle height switch 39 or the front and rear wheel height sensors 41 and 42, In the same manner as described above, the vehicle heights of the front and rear wheels Fl, Fr, Rl, and Rr are raised at the same time.
一方、前輪Fl、Frの車高が上がつた状態から、
車高切替スイツチ３９または前輪用車高センサ４
１による検出信号でコントローラ３７から前輪
Fl、Frの車高下げの指令がでると、リザーブタ
ンクユニツト１４の切替バルブ２３がクローズ位
置に復帰すると同時に排気バルブ１７が切替わ
り、前左、右輪用エアスプリング２６ｌ、２６ｒ
のエア封入部からエア供給系を逆行しドライヤ２
０を介して排気バルブ１７の排気口１７ａからエ
アが排出され、前輪Fl、Frの車高が下がる。 On the other hand, since the vehicle height of the front wheels Fl and Fr has increased,
Vehicle height switch 39 or front wheel height sensor 4
1, the controller 37 sends the front wheel
When a command to lower the vehicle height of Fl and Fr is issued, the switching valve 23 of the reserve tank unit 14 returns to the closed position, and at the same time the exhaust valve 17 is switched, and the air springs 26l and 26r for the front left and right wheels are switched.
The air supply system is reversed from the air sealing part of the dryer 2.
Air is discharged from the exhaust port 17a of the exhaust valve 17 through the exhaust valve 17, and the vehicle height of the front wheels Fl and Fr is lowered.
また、後輪Rl、Rrの車高が上がつた状態から、
車高切替スイツチ３９または後輪用車高センサ４
２による検出信号でコントローラ３７から後輪
Rl、Rrの車高下げの指令がでると、リザーブタ
ンクユニツト１４の切替バルブ２３がクローズ位
置に復帰すると同時に、排気バルブ１７が切替わ
り、後左、右輪用エアスプリング２７ｌ，２７ｒ
のエア封入部からエア供給系を逆行しドライヤ２
０を介して排気バルブ１７の排気口１７ａからエ
アが排出され、後輪Rl、Rrの車高が下がる。 In addition, since the vehicle height of the rear wheels Rl and Rr has increased,
Vehicle height switch 39 or rear wheel height sensor 4
2, the controller 37 sends a signal to the rear wheel.
When a command is issued to lower the vehicle height of Rl and Rr, the switching valve 23 of the reserve tank unit 14 returns to the closed position, and at the same time the exhaust valve 17 is switched, and the rear left and right wheel air springs 27l, 27r are activated.
The air supply system is reversed from the air sealing part of the dryer 2.
Air is exhausted from the exhaust port 17a of the exhaust valve 17 through the exhaust valve 17, and the vehicle height of the rear wheels Rl and Rr is lowered.
さらに、車高切替スイツチ３９または前、後輪
用車高センサ４１，４２による検出信号でコント
ローラ３７から前、後輪Fl、Fr、Rl、Rrの車高
を同時に下げる指令がでた場合も、上述と同様に
して、前、後輪Fl、Fr、Rl、Rrの車高も同時に
下がる。 Furthermore, if a command is issued from the controller 37 to lower the vehicle height of the front and rear wheels Fl, Fr, Rl, and Rr at the same time by the detection signal from the vehicle height changeover switch 39 or the front and rear wheel vehicle height sensors 41 and 42, In the same manner as described above, the vehicle heights of the front and rear wheels Fl, Fr, Rl, and Rr are also lowered at the same time.
つぎに、スタツク脱出用スイツチ４３を前左輪
Flと後右輪Rrのスタツク脱出位置Fl−Rrに切替
えると、第４、第５切替バルブ３４，３５が切替
わり、リザーブタンク２１からエア通路２８→前
輪用通路２８Ｆ→第５切替バルブ３５を介して、
前左輪用エアスプリング２６ｌのエア封入部にエ
アが供給されると同時に、第５切替バルブ３５か
ら、さらに第４切替バルブ３４を介して後右輪用
エアスプリング２７ｒのエア封入部にエアが供給
され、前左輪Flと後右輪Rrの車高が上がる。 Next, turn the stack escape switch 43 on the front left wheel.
When Fl and the rear right wheel Rr are switched to the stack escape position Fl-Rr, the fourth and fifth switching valves 34 and 35 are switched, and the air passage 28 from the reserve tank 21 → the front wheel passage 28F → the fifth switching valve 35 is switched. Through,
At the same time as air is supplied to the air sealed portion of the front left wheel air spring 26l, air is supplied from the fifth switching valve 35 and further via the fourth switching valve 34 to the air sealed portion of the rear right wheel air spring 27r. The vehicle height of the front left wheel Fl and rear right wheel Rr increases.
そして、スタツク脱出用スイツチ４３をニユー
トラル位置に切替えると、リザーブタンクユニツ
ト１４の切替バルブ２３がクローズ位置に復帰す
ると同時に、排気バルブ１７が切替わり、前左、
後右輪用エアスプリング２６ｌ，２７ｒのエア封
入部からエア供給系を逆行しドライヤ２０を介し
て排気バルブ１７の排気口１７ａからエアが排出
され、前左輪Flと後右輪Rrの車高が下がる。 Then, when the stack escape switch 43 is switched to the neutral position, the switching valve 23 of the reserve tank unit 14 returns to the closed position, and at the same time, the exhaust valve 17 is switched and the front left,
Air flows backward through the air supply system from the air sealed portions of the air springs 26l and 27r for the rear right wheel, passes through the dryer 20, and is discharged from the exhaust port 17a of the exhaust valve 17, increasing the vehicle height of the front left wheel Fl and the rear right wheel Rr. Go down.
また、スタツク脱出用スイツチ４３を前右輪
Frと後左輪Rlのスタツク脱出位置Fr−Rlに切替
えると、第３、第６切替バルブ３３，３６が切替
わり、リザーブタンク２１からエア通路２８→後
輪用通路２８Ｒ→第60切替バルブ３６を介して、
後左輪用エアスプリング２７ｌのエア封入部にエ
アが供給されると同時に、第６切替バルブ３６か
ら、さらに第３切替バルブ３３を介して前右輪用
エアスプリング２６ｒのエア封入部にエアが供給
され、前右輪Frと後左輪Rlの車高が上がる。 Also, set the stack escape switch 43 to the front right wheel.
When the Fr and rear left wheel Rl are switched to the stack escape position Fr-Rl, the third and sixth switching valves 33 and 36 are switched, and the air passage 28 from the reserve tank 21 → the rear wheel passage 28R → the 60th switching valve 36 is switched. Through,
At the same time as air is supplied to the air sealed portion of the air spring 27l for the rear left wheel, air is supplied from the sixth switching valve 36 and further via the third switching valve 33 to the air sealed portion of the air spring 26r for the front right wheel. The vehicle height of the front right wheel Fr and rear left wheel Rl increases.
そして、スタツク脱出用スイツチ４３をニユー
トラル位置に切替えると、リザーブタンクユニツ
ト１４の切替バルブ２３がクローズ位置に復帰す
ると同時に、排気バルブ１７が切替わり、前右、
後左輪用エアスプリング２６ｒ，２７ｌのエア封
入部からエア供給系を逆行しドライヤ２０介して
排気バルブ１７の排気口１７ａからエアが排出さ
れ、前右輪Frと後左輪Rlの車高が下がる。 Then, when the stack escape switch 43 is switched to the neutral position, the switching valve 23 of the reserve tank unit 14 returns to the closed position, and at the same time, the exhaust valve 17 is switched and the front right,
Air flows backward through the air supply system from the air sealed portions of the rear left wheel air springs 26r and 27l, and is discharged from the exhaust port 17a of the exhaust valve 17 via the dryer 20, lowering the vehicle height of the front right wheel Fr and the rear left wheel Rl.
第１図は従来の車高調整装置の回路図、第２図
は本発明に係る車高調整装置の回路図、第３図は
発明構成図である。
１３……コンプレツサーユニツト、１４……リ
ザーブタンクユニツト、１５……バルブユニツ
ト、１６……コントロールユニツト、１７……排
気バルブ、１９……コンプレツサー、２０……ド
ライヤ、２６ｌ，２６ｒ……前左、右輪用エアス
プリング、２７ｌ，２７ｒ……後左、右輪用エア
スプリング、３１……第１切替バルブ、３２……
第２切替バルブ、３３……第３切替バルブ、３４
……第４切替バルブ、３５……第５切替バルブ、
３６……第６切替バルブ、４３……スタツク脱出
用スイツチ。
FIG. 1 is a circuit diagram of a conventional vehicle height adjustment device, FIG. 2 is a circuit diagram of a vehicle height adjustment device according to the present invention, and FIG. 3 is a configuration diagram of the invention. 13... Compressor unit, 14... Reserve tank unit, 15... Valve unit, 16... Control unit, 17... Exhaust valve, 19... Compressor, 20... Dryer, 26l, 26r... Front left , air spring for right wheel, 27l, 27r... air spring for rear left, right wheel, 31... first switching valve, 32...
Second switching valve, 33...Third switching valve, 34
...Fourth switching valve, 35...Fifth switching valve,
36...Sixth switching valve, 43...Stack escape switch.
Claims (1)
コンプレツサーの出口に接続され、コンプレツサ
ーで圧縮されたエアを乾燥するためのドライヤ
と、該ドライヤとコンプレツサーとの間に配置さ
れ、圧縮エアを排気する排気バルブと、車両の前
後輪の夫々左右に設けられ、バルブ手段を介して
ドライヤの出口に接続され、圧縮エアの給排気に
よつて車高調整を行なうエアスプリングとから成
る車高調整装置において、 上記ドライヤの出口が前輪用通路と後輪用通路
とに分岐され、 前輪用通路は、第５切替バルブを介して前左輪
用エアスプリングに接続され、 後輪用通路は、第６切替バルブを介して後左輪
用エアスプリングに接続され、 前輪用通路の第５切替バルブの出口側から分岐
した第１分岐通路は、第１切替バルブと第３切替
バルブを介して後左輪用エアスプリングに接続さ
れ、 後輪用通路の第６切替バルブの出口側から分岐
した第２分岐通路は、第２切替バルブと第４切替
バルブを介して前左輪用エアスプリングに接続さ
れ、 第１切替バルブと第３切替バルブとの間から分
岐した第３分岐通路は、前右輪用エアスプリング
に接続され、 第２切替バルブと第４切替バルブとの間から分
岐した第４分岐通路は、後右輪用エアスプリング
に接続されていることを特徴とする車高調整装
置。[Scope of Claims] 1. A compressor for compressing air, a dryer connected to the outlet of the compressor and for drying the air compressed by the compressor, and a dryer disposed between the dryer and the compressor for compressing the air. A vehicle consisting of an exhaust valve that exhausts air, and an air spring that is provided on each side of the front and rear wheels of the vehicle, is connected to the outlet of a dryer via valve means, and adjusts the vehicle height by supplying and exhausting compressed air. In the high adjustment device, the outlet of the dryer is branched into a front wheel passage and a rear wheel passage, the front wheel passage is connected to the front left wheel air spring via a fifth switching valve, and the rear wheel passage is The first branch passage, which is connected to the air spring for the rear left wheel via the sixth switching valve, and which branches from the outlet side of the fifth switching valve of the front wheel passage, connects to the air spring for the rear left wheel via the first switching valve and the third switching valve. A second branch passage branched from the outlet side of the sixth switching valve of the rear wheel passage is connected to the front left wheel air spring via the second switching valve and the fourth switching valve. The third branch passage branched from between the first switching valve and the third switching valve is connected to the front right wheel air spring, and the fourth branch passage branched from between the second switching valve and the fourth switching valve. , a vehicle height adjustment device characterized by being connected to an air spring for the rear right wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1682484A JPS60161209A (en) | 1984-01-31 | 1984-01-31 | Car height adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1682484A JPS60161209A (en) | 1984-01-31 | 1984-01-31 | Car height adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60161209A JPS60161209A (en) | 1985-08-22 |
| JPH0321365B2 true JPH0321365B2 (en) | 1991-03-22 |
Family
ID=11926921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1682484A Granted JPS60161209A (en) | 1984-01-31 | 1984-01-31 | Car height adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60161209A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561654A (en) * | 2011-12-30 | 2012-07-11 | 广州市番禺康达木业有限公司 | Solid wood foor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066573B2 (en) * | 1985-07-23 | 1994-01-26 | 三井東圧化学株式会社 | Indian manufacturing method |
| FR2750652B1 (en) * | 1996-07-04 | 1998-11-13 | Peugeot | SYSTEM FOR CONTROLLING A HYDROPNEUMATIC SUSPENSION OF A MOTOR VEHICLE |
-
1984
- 1984-01-31 JP JP1682484A patent/JPS60161209A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561654A (en) * | 2011-12-30 | 2012-07-11 | 广州市番禺康达木业有限公司 | Solid wood foor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60161209A (en) | 1985-08-22 |
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