JP3467449B2 - Height adjustment device - Google Patents
Height adjustment deviceInfo
- Publication number
- JP3467449B2 JP3467449B2 JP2000136570A JP2000136570A JP3467449B2 JP 3467449 B2 JP3467449 B2 JP 3467449B2 JP 2000136570 A JP2000136570 A JP 2000136570A JP 2000136570 A JP2000136570 A JP 2000136570A JP 3467449 B2 JP3467449 B2 JP 3467449B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- valve
- vehicle height
- air compressor
- conduit
- 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 - Fee Related
Links
Landscapes
- Vehicle Body Suspensions (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この出願の発明は、自動車の
車高調整装置、特に、空気室を有し、該空気室内の空気
量の増減に応じて車高調整を行う車高調整手段と、選択
的に駆動される電動式空気圧縮機と、該電動式空気圧縮
機を前記空気室に接続する空気導管と、該空気導管の途
中に設けられ、前記空気導管を選択的に開閉する遮断弁
と、前記空気導管の前記遮断弁と前記電動式空気圧縮機
との間を選択的に大気に開放する大気開放弁と、前記遮
断弁と前記大気開放弁の開閉を制御するとともに、前記
電動式空気圧縮機の始動・停止を制御する制御装置とを
備えた車高調整装に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle height adjusting device for an automobile, and more particularly to a vehicle height adjusting means having an air chamber for adjusting the vehicle height according to an increase or decrease in the amount of air in the air chamber. An electrically driven air compressor that is selectively driven, an air conduit that connects the electrically operated air compressor to the air chamber, and a shutoff valve that is provided in the middle of the air conduit and that selectively opens and closes the air conduit. An atmosphere opening valve for selectively opening between the shutoff valve of the air conduit and the electric air compressor to the atmosphere, and controlling the opening and closing of the shutoff valve and the atmosphere release valve, and the electric type The present invention relates to a vehicle height adjusting device including a control device that controls starting and stopping of an air compressor.
【０００２】[0002]
【従来の技術】この種の車高調整装置は周知であり、例
えば特開昭５９−１３０７１８号公報に記載されてい
る。この公開特許公報には、小型、低出力の電動機によ
り円滑に空気圧縮機を始動することができるようにする
ため、車高を高めるべく車高調整するときには、大気開
放弁を開き、且つこの状態を所定時間保持した後に、大
気開放弁を閉じると同時に電動式空気圧縮機を始動し、
遮断弁を開くことが記載されている。また、車高上昇を
停止するときには、上記公開特許公報には記載されてい
ないが、電動式空気圧縮機を停止すると同時に遮断弁を
閉じることが一般的に行われている。2. Description of the Related Art A vehicle height adjusting device of this kind is well known and is disclosed in, for example, Japanese Patent Laid-Open No. 59-130718. In this publication, in order to smoothly start the air compressor with a small-sized, low-output electric motor, when the vehicle height is adjusted to increase the vehicle height, the atmosphere release valve is opened and After holding for a predetermined time, close the atmosphere release valve and start the electric air compressor at the same time,
It is described to open the shutoff valve. Further, when stopping the vehicle height increase, although not disclosed in the above-mentioned Japanese Patent Laid-Open Publication, the shutoff valve is generally closed at the same time when the electric air compressor is stopped.
【０００３】[0003]
【発明が解決しようとする課題】上記公開特許公報に記
載された従来技術においては、電動式空気圧縮機の停止
時の負荷は大きいので、電動式空気圧縮機の停止時の振
動も相当なものとなる。この振動が車両に伝達すること
により不快音を発生していた。In the prior art disclosed in the above-mentioned Japanese Patent Laid-Open Publication, since the load when the electric air compressor is stopped is large, the vibration when the electric air compressor is stopped is considerable. Becomes This vibration is transmitted to the vehicle, which causes an unpleasant sound.
【０００４】この出願の発明は、遮断弁、大気開放弁お
よび電動式空気圧縮機の制御を改良することによって電
動式空気圧縮機の停止時の振動を低減することを技術的
課題とする。An object of the invention of this application is to reduce the vibration when the electric air compressor is stopped by improving the control of the shutoff valve, the atmosphere opening valve and the electric air compressor.
【０００５】[0005]
【課題を解決するための手段】この出願の請求項１の発
明においては、空気室を有し、該空気室内の空気量の増
減に応じて車高調整を行う車高調整手段と、選択的に駆
動される電動式空気圧縮機と、該電動式空気圧縮機を前
記空気室に接続する空気導管と、該空気導管の途中に設
けられ、前記空気導管を選択的に開閉する遮断弁と、前
記空気導管の前記遮断弁と前記電動式空気圧縮機との間
を選択的に大気に開放する大気開放弁と、前記遮断弁と
前記大気開放弁の開閉を制御するとともに、前記電動式
空気圧縮機の始動・停止を制御する制御装置とを備えた
車高調整装置において、前記制御装置は、車高上昇を停
止するときには、前記遮断弁を閉じた状態で、前記遮断
弁と前記電動式空気圧縮機との間の前記空気導管の圧力
を前記大気開放弁を開くことにより低下させた後、前記
電動式空気圧縮機を停止し、その後前記大気開放弁を閉
じるように構成されている。According to the invention of claim 1 of the present application, there is provided a vehicle height adjusting means for selectively adjusting the vehicle height according to an increase / decrease in the amount of air in the air chamber. An electric air compressor driven to, an air conduit connecting the electric air compressor to the air chamber, a shut-off valve provided in the middle of the air conduit for selectively opening and closing the air conduit, An air release valve that selectively opens between the shutoff valve of the air conduit and the electric air compressor to the atmosphere, and controls the opening and closing of the shutoff valve and the air release valve, and the electric air compressor. In a vehicle height adjusting device including a control device for controlling starting and stopping of a machine, the control device, when stopping the increase in vehicle height, keeps the shutoff valve and the electrically operated air valve closed. The pressure of the air conduit between the compressor and the air release valve After reducing by opening stops the electric air compressor, then the air release valve closed
It is configured to twiddle .
【０００６】この出願の請求項２の発明においては、空
気室を有し、該空気室内の空気量の増減に応じて車高調
整を行う車高調整手段と、選択的に駆動される電動式空
気圧縮機と、該電動式空気圧縮機を前記空気室に接続す
る空気導管と、該空気導管の途中に設けられ、前記空気
導管を選択的に開閉する遮断弁と、前記空気導管の前記
遮断弁と前記電動式空気圧縮機との間を選択的に大気に
開放する大気開放弁と、前記遮断弁と前記大気開放弁の
開閉を制御するとともに、前記電動式空気圧縮機の始動
・停止を制御する制御装置とを備えた車高調整装置にお
いて、前記制御装置は、車高上昇を停止するときには、
前記遮断弁を閉じた状態で、かつ前記遮断弁と前記電動
式空気圧縮機との間の前記空気導管の圧力を前記大気開
放弁を開くことにより低下させている状態で、前記電動
式空気圧縮機を停止し、その後前記大気開放弁を閉じる
ように構成されている。In the invention of claim 2 of this application, there is an air chamber, and a vehicle height adjusting means for adjusting the vehicle height according to an increase or decrease in the amount of air in the air chamber, and an electrically driven selectively driven vehicle. An air compressor, an air conduit connecting the electric air compressor to the air chamber, a shutoff valve provided in the middle of the air conduit for selectively opening and closing the air conduit, and the shutoff of the air conduit. A valve and the electric air compressor to selectively open the atmosphere to the atmosphere, and to control the opening and closing of the shutoff valve and the atmosphere opening valve, to start and stop the electric air compressor. In a vehicle height adjusting device including a control device for controlling, the control device, when stopping the vehicle height increase,
In the state where the shutoff valve is closed and the pressure of the air conduit between the shutoff valve and the electric air compressor is reduced by opening the atmosphere release valve, the electric air compression It is configured to stop the machine and then close the atmosphere release valve .
【０００７】[0007]
【作用】この出願の請求項１の発明によれば、電動式空
気圧縮機の停止は、既に大気開放弁が開放されて電動式
空気圧縮機の吐出側の圧力が低下している状態で行われ
るので、停止時の負荷を小さくすることができ、電動式
空気圧縮機の停止時の振動を低減することができる。According to the invention of claim 1 of this application, the electric air compressor is stopped when the atmosphere release valve is already opened and the pressure on the discharge side of the electric air compressor is reduced. Therefore, the load at the time of stop can be reduced, and the vibration at the time of stop of the electric air compressor can be reduced.
【０００８】この出願の請求項２の発明によれば、電動
式空気圧縮機の停止は、大気開放弁が開放されている状
態で行われるので、停止時の負荷を更に小さくすること
ができ、電動式空気圧縮機の停止時の振動を低減するこ
とができる。According to the invention of claim 2 of this application, since the electric air compressor is stopped while the atmosphere release valve is open, the load at the time of stop can be further reduced. Vibration when the electric air compressor is stopped can be reduced.
【０００９】[0009]
【発明の実施の形態】図１は車両への取付用ブラケット
と電動式空気圧縮機との取付関係を示す分解斜視図であ
り、１０は車両への取付用ブラケットであり、その３個
の孔１１には防振ゴム１２が挿入されてその外周部で取
付用ブラケットと連結され、防振ゴム１２の内周部には
電動式空気圧縮機１３の３つのフランジ１４がボルト１
５で連結される。防振ゴム１２は外周部と内周部との間
を薄肉部で連続させて、柔軟性に富んだものとしてい
る。これにより、電動式空気圧縮機１３は取付用ブラケ
ット１０に防振ゴム１２を介して取付られる。1 is an exploded perspective view showing a mounting relationship between a vehicle mounting bracket and an electric air compressor, and 10 is a vehicle mounting bracket having three holes. An anti-vibration rubber 12 is inserted into 11 and is connected to a mounting bracket at its outer peripheral portion, and three flanges 14 of an electric air compressor 13 are attached to the inner peripheral portion of the anti-vibration rubber 12 by bolts 1.
Connected at 5. The anti-vibration rubber 12 has a thin wall portion between the outer peripheral portion and the inner peripheral portion, which is highly flexible. As a result, the electric air compressor 13 is attached to the mounting bracket 10 via the anti-vibration rubber 12.
【００１０】図２は車高調整装置の概略構成を示す図で
ある。図２において、１６および１７はそれぞれ左およ
び右の車輪のためのショックアブソーバである。ショッ
クアブソーバ１６および１７は、ピストンロッド１８お
よび１９に固定され且つアブソーバシリンダ２０および
２１の外周に入筒式に遊嵌合する筒状のアウターカバー
シェル２２および２３と、アウターカバーシェル２２お
よび２３の内側に密閉構造の空気室２４および２５は画
定すべく一端にてアウターカバーシェルの内周部に、ま
た他端にてアブソーバシリンダの外周部にそれぞれ密閉
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２６および２７をそれぞれ備えている。シ
ョックアブソーバ１６および１７はそれぞれ空気室２４
および２５に空気圧が供給されることによりその空気圧
に応じて通常実効長を変化し、これによって車高を調整
するようになっている。FIG. 2 is a diagram showing a schematic structure of the vehicle height adjusting device. In FIG. 2, 16 and 17 are shock absorbers for the left and right wheels, respectively. The shock absorbers 16 and 17 are fixed to the piston rods 18 and 19, and are cylindrical outer cover shells 22 and 23 that are loosely fitted into the outer circumferences of the absorber cylinders 20 and 21 in a cylindrical manner, and the outer cover shells 22 and 23. The air chambers 24 and 25 having a closed structure inside are hermetically connected at one end to the inner circumference of the outer cover shell and at the other end to the outer circumference of the absorber cylinder, respectively, and have a substantially U-shaped cross section. Molded diaphragms 26 and 27, respectively. The shock absorbers 16 and 17 have an air chamber 24, respectively.
By supplying the air pressure to and 25, the effective length is normally changed according to the air pressure, and the vehicle height is adjusted by this.
【００１１】電動式空気圧縮機１３は導管２８、空気乾
燥器２９、導管３０、互いに並列の逆止弁３１，オリフ
ィス３２、導管３３、電磁作動の常閉型の遮断弁３４お
よび３５、導管３６および３７を介して空気室２４およ
び２５に接続されている。電動式空気圧縮機１３は電動
機３８により駆動され、電動機３８は制御装置３９によ
り作動を制御され、車高調整装置が高圧空気を必要とす
るときのみ電力を供給されて運転されるようになってい
る。逆止弁３１とオリフィス３２は車高を下降させる時
の空気乾燥機２９内の低圧状態を確保するためのもので
ある。The electric air compressor 13 includes a conduit 28, an air drier 29, a conduit 30, a check valve 31, an orifice 32, a conduit 33, electromagnetically-operated normally-closed shutoff valves 34 and 35, and a conduit 36 which are parallel to each other. And 37 to the air chambers 24 and 25. The electric air compressor 13 is driven by an electric motor 38, and the operation of the electric motor 38 is controlled by a control device 39 so that the vehicle height adjusting device is supplied with electric power and operated only when high pressure air is required. There is. The check valve 31 and the orifice 32 are for ensuring a low pressure state in the air dryer 29 when lowering the vehicle height.
【００１２】導管２８はその途中にて導管４０、電磁作
動の常閉型の大気開放弁４１を経てドレン管４２に接続
されている。The conduit 28 is connected to a drain pipe 42 via a conduit 40 and an electromagnetically-actuated normally-closed atmosphere opening valve 41 on the way.
【００１３】遮断弁３４および３５と大気開放弁４１は
制御装置３９により開閉作動を個別に制御されるように
なっている。制御装置３９は車高センサ４３によって測
定された車高に応じて電動機３８への通電を制御するよ
うになっている車高センサ４３により測定される車高が
設定値である時には、電動機３８の運転は停止され、遮
断弁３４および３５と大気開放弁４１は閉じている。The shut-off valves 34 and 35 and the atmosphere opening valve 41 are individually controlled to be opened and closed by a controller 39. The control device 39 controls energization of the electric motor 38 according to the vehicle height measured by the vehicle height sensor 43. When the vehicle height measured by the vehicle height sensor 43 is a set value, The operation is stopped, and the shutoff valves 34 and 35 and the atmosphere release valve 41 are closed.
【００１４】乗員数の増加等により車載荷重が増加して
車高が設定値よりも低くなり、これが車高センサ４３に
よって検知されると、図３に示すように、先ず大気開放
弁４１が開かれ、それから所定時間Ｔ１が経過すると電
動機３８が通電されて電動式空気圧縮機１３が駆動さ
れ、大気開放弁４１が開かれてから所定時間Ｔ２が経過
すると大気開放弁４１が閉じられるとともに遮断弁３４
および３５が開かれる。When the vehicle load increases due to an increase in the number of passengers and the like, and the vehicle height becomes lower than the set value, and this is detected by the vehicle height sensor 43, first, as shown in FIG. 3, the atmosphere release valve 41 is opened. After that, when a predetermined time T 1 has elapsed, the electric motor 38 is energized to drive the electric air compressor 13, and the atmosphere release valve 41 is closed after a predetermined time T 2 has elapsed since the atmosphere release valve 41 was opened. Shut-off valve 34
And 35 are opened.
【００１５】このように電動機３８の始動は、大気開放
弁４１が開いた状態の下で行われるものであり、大気開
放弁４１が開いてから電動機３８が始動されるまでの間
に導管２８内の空気圧は相当に低い値まで低下し、従っ
て電動式空気圧縮機１３の負荷、つまり電動機３８の負
荷は小さく、その上、電動式空気圧縮機１３の作動によ
り導管２８内に吐出される圧縮空気の一部が大気開放弁
４１を透して大気中に逃げることから導管２８の空気圧
の上昇も穏やかであるため、電動機３８のトルク変化は
穏やかとなる。このトルク変化が急激であると振動が発
生するのであるが、トルク変化が穏やかであるため振動
は小さいものである。As described above, the electric motor 38 is started under the condition that the atmosphere opening valve 41 is opened, and the inside of the conduit 28 is opened from the time when the atmosphere opening valve 41 is opened until the electric motor 38 is started. Air pressure drops to a considerably low value, so that the load of the electric air compressor 13, that is, the load of the electric motor 38 is small, and the compressed air discharged into the conduit 28 by the operation of the electric air compressor 13 is also decreased. Part of the air passes through the atmosphere release valve 41 and escapes to the atmosphere, so that the increase in the air pressure in the conduit 28 is also gentle, so that the torque change of the electric motor 38 is moderate. Vibration is generated when the torque change is abrupt, but the vibration is small because the torque change is gentle.
【００１６】車高が設定値まで上昇し、これが車高セン
サ４３によって検知されると、図４に示すように先ず遮
断弁３４および３５が閉じられ、同時に大気開放弁４１
が開かれ、遮断弁３４および３５が閉じられてから所定
時間Ｔ３が経過すると電動機３８への通電が停止されて
電動式空気圧縮機１３の駆動が停止され、遮断弁３４お
よび３５が閉じられてから所定時間Ｔ４が経過すると大
気開放弁４１が閉じられる。このように、電動機３８お
よび電動式空気圧縮機１３の停止は大気開放弁４１が開
かれた状態の下で行われ、導管２８内の空気圧力が穏や
かに且つ相当に低い値まで低下しているので、この停止
時の電動機３８のトルク変化も小さく、従って振動は小
さい。When the vehicle height rises to a set value and is detected by the vehicle height sensor 43, the shutoff valves 34 and 35 are first closed as shown in FIG.
Is opened and the shutoff valves 34 and 35 are closed, and when a predetermined time T 3 has passed, the power supply to the electric motor 38 is stopped, the drive of the electric air compressor 13 is stopped, and the shutoff valves 34 and 35 are closed. air release valve 41 is closed when the predetermined time T 4 has elapsed since. In this way, the electric motor 38 and the electric air compressor 13 are stopped while the atmosphere opening valve 41 is opened, and the air pressure in the conduit 28 is gently decreased to a considerably low value. Therefore, the torque change of the electric motor 38 at the time of this stop is small, and therefore the vibration is small.
【００１７】尚、電動式空気圧縮機１３を始動する時、
遮断弁３４および３５は大気開放弁４１を閉じた後に開
くように変更しても良い。また、電動式空気圧縮機１３
を停止する時、遮断弁３４および３５を閉じた後に大気
開放弁４１を開くように変更しても良い。When the electric air compressor 13 is started,
The shutoff valves 34 and 35 may be modified so that they are opened after the atmosphere opening valve 41 is closed. In addition, the electric air compressor 13
When shutting off, the shutoff valves 34 and 35 may be closed and then the atmosphere opening valve 41 may be opened.
【００１８】乗員数の減少等により車載荷重が減少して
車高が設定値よりも高くなった時には遮断弁３４および
３５が開かれ且つ大気開放弁４１が開かれる。これによ
り空気室２４および２５内の高圧空気が大気中に放出さ
れ、空気室２４および２５内の空気圧が低下して車高が
下降する。When the vehicle load decreases due to a decrease in the number of passengers and the vehicle height becomes higher than the set value, the shutoff valves 34 and 35 are opened and the atmosphere opening valve 41 is opened. As a result, the high-pressure air in the air chambers 24 and 25 is released into the atmosphere, the air pressure in the air chambers 24 and 25 decreases, and the vehicle height decreases.
【００１９】[0019]
【発明の効果】以上に説明したように、この出願の請求
項１の発明における制御装置は、車高上昇を停止すると
きには、遮断弁を閉じた状態で、遮断弁と電動式空気圧
縮機との間の空気導管の圧力を大気開放弁を開くことに
より低下させた後、電動式空気圧縮機を停止し、その後
前記大気開放弁を閉じるように構成されており、電動式
空気圧縮機の停止は、既に大気開放弁が開放されて電動
式空気圧縮機の吐出側の圧力が低下している状態で行わ
れるので、停止時の負荷を小さくすることができ、電動
式空気圧縮機の停止時の振動低減により不快音の発生を
抑えることができる。As described above, in the control device according to the invention of claim 1 of this application, when the vehicle height increase is stopped, the shutoff valve and the electric air compressor are closed while the shutoff valve is closed. After reducing the pressure of the air conduit between by opening the atmosphere release valve, stop the electric air compressor , then
The air release valve is configured to be closed , and the electric air compressor is stopped when the air release valve has already been opened and the pressure on the discharge side of the electric air compressor has dropped. The load at the time of stop can be reduced, and the generation of unpleasant noise can be suppressed by reducing the vibration at the time of stop of the electric air compressor.
【００２０】また、この出願の請求項２の発明における
制御装置は、車高上昇を停止するときには、遮断弁を閉
じた状態で、かつ遮断弁と電動式空気圧縮機との間の空
気導管の圧力を大気開放弁を開くことにより低下させて
いる状態で、電動式空気圧縮機を停止し、その後大気開
放弁を閉じるように構成されているため、導管内の空気
圧が穏やかに且つ相当に低い値まで低下しているため、
停止時の負荷を更に小さくすることができ、電動式空気
圧縮機の停止時の振動低減により不快音の発生を抑える
ことができる。Further, the control device in the invention of claim 2 of this application, when stopping the vehicle height increase, in a state closing the shut-off valve, and the air conduit between the shutoff valve and the electric air compressor With the pressure reduced by opening the atmosphere release valve , stop the electric air compressor and then open the atmosphere.
As it is configured to close the release valve , the air pressure in the conduit drops gently and to a fairly low value,
The load at the time of stop can be further reduced, and the generation of unpleasant noise can be suppressed by reducing the vibration at the time of stop of the electric air compressor.
【図１】この出願の発明に係る車高調整装置における電
動式空気圧縮機と車両への取付用ブラケットとの取付関
係を示す図である。FIG. 1 is a diagram showing a mounting relationship between an electric air compressor and a mounting bracket for a vehicle in a vehicle height adjusting device according to the invention of this application.
【図２】この出願の発明に係る車高調整装置の概略構成
を示す図である。FIG. 2 is a diagram showing a schematic configuration of a vehicle height adjusting device according to the invention of this application.
【図３】この出願の発明に係る車高調整装置における電
動式空気圧縮機の始動時の制御を示す図である。FIG. 3 is a diagram showing control at the time of starting the electric air compressor in the vehicle height adjusting device according to the invention of this application.
【図４】この出願の発明に係る車高調整装置における電
動式空気圧縮機の停止時の制御を示す図である。FIG. 4 is a diagram showing control when the electric air compressor is stopped in the vehicle height adjusting device according to the invention of this application.
１３・・・電動式空気圧縮機 １６、１７・・・ショックアブソーバ １８、１９・・・ピストンロッド ２４、２５・・・空気室 ３４、３５・・・遮断弁 ３８・・・電動機 ３９・・・制御装置 ４１・・・大気開放弁 13 ... Electric air compressor 16, 17 ... Shock absorber 18, 19 ... Piston rod 24, 25 ... Air chamber 34, 35 ... Shut-off valve 38: Electric motor 39 ... Control device 41 ... Atmosphere release valve
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭58−110313（ＪＰ，Ａ) 特開 昭60−213513（ＪＰ，Ａ) 特開 昭59−134003（ＪＰ，Ａ) 実開 昭58−60506（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60G 1/00 - 25/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-58-110313 (JP, A) JP-A-60-213513 (JP, A) JP-A-59-134003 (JP, A) Actual development Sho-58- 60506 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) B60G 1/00-25/00
Claims (2)
減に応じて車高調整を行う車高調整手段と、選択的に駆
動される電動式空気圧縮機と、該電動式空気圧縮機を前
記空気室に接続する空気導管と、該空気導管の途中に設
けられ、前記空気導管を選択的に開閉する遮断弁と、前
記空気導管の前記遮断弁と前記電動式空気圧縮機との間
を選択的に大気に開放する大気開放弁と、前記遮断弁と
前記大気開放弁の開閉を制御するとともに、前記電動式
空気圧縮機の始動・停止を制御する制御装置とを備えた
車高調整装置において、前記制御装置は、車高上昇を停
止するときには、前記遮断弁を閉じた状態で、前記遮断
弁と前記電動式空気圧縮機との間の前記空気導管の圧力
を前記大気開放弁を開くことにより低下させた後、前記
電動式空気圧縮機を停止し、その後前記大気開放弁を閉
じるように構成されていることを特徴とする車高調整装
置。1. A vehicle height adjusting means having an air chamber for adjusting a vehicle height according to an increase / decrease in the amount of air in the air chamber, an electrically driven air compressor selectively driven, and the electrically operated air. An air conduit for connecting a compressor to the air chamber, a shutoff valve provided in the middle of the air conduit for selectively opening and closing the air conduit, the shutoff valve for the air conduit, and the electric air compressor A vehicle provided with an atmosphere release valve for selectively opening the space between them to the atmosphere, and a control device for controlling opening / closing of the shutoff valve and the atmosphere release valve and for controlling start / stop of the electric air compressor. In the high adjustment device, the control device releases the pressure of the air conduit between the shutoff valve and the electric air compressor to the atmosphere when the vehicle height increase is stopped while the shutoff valve is closed. After lowering by opening the valve, remove the electric air compressor. Stop and then close the atmosphere release valve
A vehicle height adjusting device, which is configured to be twisted .
減に応じて車高調整を行う車高調整手段と、選択的に駆
動される電動式空気圧縮機と、該電動式空気圧縮機を前
記空気室に接続する空気導管と、該空気導管の途中に設
けられ、前記空気導管を選択的に開閉する遮断弁と、前
記空気導管の前記遮断弁と前記電動式空気圧縮機との間
を選択的に大気に開放する大気開放弁と、前記遮断弁と
前記大気開放弁の開閉を制御するとともに、前記電動式
空気圧縮機の始動・停止を制御する制御装置とを備えた
車高調整装置において、前記制御装置は、車高上昇を停
止するときには、前記遮断弁を閉じた状態で、かつ前記
遮断弁と前記電動式空気圧縮機との間の前記空気導管の
圧力を前記大気開放弁を開くことにより低下させている
状態で、前記電動式空気圧縮機を停止し、その後前記大
気開放弁を閉じるように構成されていることを特徴とす
る車高調整装置。2. A vehicle height adjusting means having an air chamber for adjusting a vehicle height according to an increase or decrease in the amount of air in the air chamber, an electrically driven air compressor selectively driven, and the electrically driven air. An air conduit for connecting a compressor to the air chamber, a shutoff valve provided in the middle of the air conduit for selectively opening and closing the air conduit, the shutoff valve for the air conduit, and the electric air compressor A vehicle provided with an atmosphere release valve for selectively opening the space between them to the atmosphere, and a control device for controlling opening / closing of the shutoff valve and the atmosphere release valve and for controlling start / stop of the electric air compressor. in high adjustment device, wherein the controller, when stopping the vehicle height increases, the air pressure in the air conduit between said shut-off valve in the closed state, and the said shut-off valve powered air compressor In the state where it is lowered by opening the release valve, Turn off the air compressor , then
A vehicle height adjusting device, which is configured to close an air release valve .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000136570A JP3467449B2 (en) | 1993-02-05 | 2000-05-10 | Height adjustment device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01865493A JP3296868B2 (en) | 1993-02-05 | 1993-02-05 | Height adjustment device |
| JP2000136570A JP3467449B2 (en) | 1993-02-05 | 2000-05-10 | Height adjustment device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01865493A Division JP3296868B2 (en) | 1993-02-05 | 1993-02-05 | Height adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000335221A JP2000335221A (en) | 2000-12-05 |
| JP3467449B2 true JP3467449B2 (en) | 2003-11-17 |
Family
ID=30002087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000136570A Expired - Fee Related JP3467449B2 (en) | 1993-02-05 | 2000-05-10 | Height adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3467449B2 (en) |
-
2000
- 2000-05-10 JP JP2000136570A patent/JP3467449B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000335221A (en) | 2000-12-05 |
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