JPH0439912U - - Google Patents
Info
- Publication number
- JPH0439912U JPH0439912U JP8270390U JP8270390U JPH0439912U JP H0439912 U JPH0439912 U JP H0439912U JP 8270390 U JP8270390 U JP 8270390U JP 8270390 U JP8270390 U JP 8270390U JP H0439912 U JPH0439912 U JP H0439912U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- oil
- pressure chamber
- pressure
- 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.)
- Granted
Links
- 239000003921 oil Substances 0.000 claims description 23
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Vehicle Body Suspensions (AREA)
Description
第１図は、本考案に基づくアクテイブサスペン
シヨン装置の油圧制御装置の一つの実施例を示す
油圧回路図であり、第２図は同じく本考案の別の
実施例を示す油圧回路図である。
１……車輪、２……上サスペンシヨンアーム、
３……下サスペンシヨンアーム、４……車体、５
……コイルばね、６……油圧アクチユエータ、７
……シリンダ、８……ピストン、９……圧力室、
１０……背圧室、１１……油路、１２……圧力制
御弁、１３……出力ポート、１４……入力ポート
、１５……ドレンポート、１６……アキユームレ
ータ、１７……作動油供給油路、１７ａ……供給
油路、１８……アキユームレータ、１９……作動
油排出油路、１９ａ……排出油路、２０……リタ
ーン通路、２１……第１切換弁、２２……第１ポ
ート、２３……第２ポート、２４……入力ポート
、２５……ドレンポート、２６……絞り、２７…
…ポンプ吐出油路、２８……ドレン油路、２９…
…パイロツト油路、３０……オイルフイルタ、３
１……バイパスチエツク弁、３２……メインチエ
ツク弁、３３……ポンプ切換弁、３４……吐出ポ
ート、３５……ポンプポート、３６……リターン
ポート、３７……油ポンプ、３８……吐出ポート
、３９……吸入ポート、４０……リターン油路、
４１……圧力センサ、４２……リリーフ弁、４３
……アキユムレータ、４４……第２切換弁、４５
……第１ポート、４６……第２ポート、４７……
ドレンポート、４８……絞り、４９……バイパス
油路、５０……オイルクーラ、５１……オイルフ
イルタ、５２……圧力センサ、５３……車高セン
サ、６０……切換弁、６１……絞り、６２……第
１ポート、６３……絞り、６４……第２ポート、
６５……ドレンポート、６６……開閉弁。
FIG. 1 is a hydraulic circuit diagram showing one embodiment of a hydraulic control device for an active suspension system according to the present invention, and FIG. 2 is a hydraulic circuit diagram showing another embodiment of the present invention. 1...Wheel, 2...Upper suspension arm,
3...Lower suspension arm, 4...Vehicle body, 5
... Coil spring, 6 ... Hydraulic actuator, 7
...Cylinder, 8...Piston, 9...Pressure chamber,
10... Back pressure chamber, 11... Oil path, 12... Pressure control valve, 13... Output port, 14... Input port, 15... Drain port, 16... Accumulator, 17... Hydraulic oil Supply oil passage, 17a... Supply oil passage, 18... Accumulator, 19... Hydraulic oil discharge oil passage, 19a... Discharge oil passage, 20... Return passage, 21... First switching valve, 22... ...First port, 23...Second port, 24...Input port, 25...Drain port, 26...Aperture, 27...
...Pump discharge oil path, 28...Drain oil path, 29...
...Pilot oil path, 30...Oil filter, 3
1...Bypass check valve, 32...Main check valve, 33...Pump switching valve, 34...Discharge port, 35...Pump port, 36...Return port, 37...Oil pump, 38...Discharge port , 39... Suction port, 40... Return oil path,
41...Pressure sensor, 42...Relief valve, 43
... Accumulator, 44 ... Second switching valve, 45
...First port, 46...Second port, 47...
Drain port, 48... Throttle, 49... Bypass oil path, 50... Oil cooler, 51... Oil filter, 52... Pressure sensor, 53... Vehicle height sensor, 60... Switching valve, 61... Throttle , 62...First port, 63...Aperture, 64...Second port,
65...Drain port, 66...Open/close valve.
Claims (1)
し、前記圧力室に供給される作動油の圧力に応じ
て各車輪と車体との間の相対距離を個別に可変し
得る油圧アクチユエータと、油ポンプからの作動
油を前記圧力室に供給するための供給油路と、前
記圧力室から作動油をリザーバタンクに戻すため
の排出油路と、前記油圧アクチユエータ毎に設け
られ、前記圧力室に対する前記供給油路と前記排
出油路との接続を制御して前記圧力室に与える作
動油の圧力を個別に制御し得る圧力制御弁とを有
するアクテイブサスペンシヨン装置の油圧制御装
置であつて、 前記各油圧アクチユエータの背圧室を前記排出
油路に連通するリターン通路が設けられると共に
、 前記供給油路と前記油ポンプとの連通及び前記
排出油路と前記リザーバタンクとの連通を各々選
択的に遮断可能であり、かつ遮断時には、前記各
油圧アクチユエータの圧力室と背圧室とを互いに
連通接続可能な切換回路が設けられていることを
特徴するアクテイブサスペンシヨン装置の油圧制
御装置。[Claims for Utility Model Registration] The vehicle has a pressure chamber and a back pressure chamber separated by a piston, and the relative distance between each wheel and the vehicle body is adjusted according to the pressure of hydraulic oil supplied to the pressure chamber. a hydraulic actuator that can be varied individually; a supply oil passage for supplying hydraulic oil from an oil pump to the pressure chamber; a discharge oil passage for returning hydraulic oil from the pressure chamber to the reservoir tank; and the hydraulic actuator. an active suspension device having a pressure control valve that is provided for each of the pressure chambers and that can individually control the pressure of hydraulic oil applied to the pressure chambers by controlling the connection of the supply oil path and the discharge oil path to the pressure chambers; The hydraulic control device is provided with a return passage that communicates a back pressure chamber of each of the hydraulic actuators with the discharge oil passage, and a return passage that communicates between the supply oil passage and the oil pump and between the discharge oil passage and the reservoir. An active suspension characterized by being provided with a switching circuit that can selectively cut off the communication with the tank and, when cut off, connect the pressure chamber and back pressure chamber of each hydraulic actuator to each other. Hydraulic control device of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990082703U JP2514098Y2 (en) | 1990-08-03 | 1990-08-03 | Hydraulic control device for active suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990082703U JP2514098Y2 (en) | 1990-08-03 | 1990-08-03 | Hydraulic control device for active suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0439912U true JPH0439912U (en) | 1992-04-06 |
| JP2514098Y2 JP2514098Y2 (en) | 1996-10-16 |
Family
ID=31629751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990082703U Expired - Lifetime JP2514098Y2 (en) | 1990-08-03 | 1990-08-03 | Hydraulic control device for active suspension system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514098Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012060331A1 (en) * | 2010-11-05 | 2012-05-10 | 日立建機株式会社 | Hydraulic drive device for construction machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62145711U (en) * | 1986-03-05 | 1987-09-14 |
-
1990
- 1990-08-03 JP JP1990082703U patent/JP2514098Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62145711U (en) * | 1986-03-05 | 1987-09-14 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012060331A1 (en) * | 2010-11-05 | 2012-05-10 | 日立建機株式会社 | Hydraulic drive device for construction machine |
| JP2012097885A (en) * | 2010-11-05 | 2012-05-24 | Hitachi Constr Mach Co Ltd | Hydraulic drive device for construction machine |
| CN103201523A (en) * | 2010-11-05 | 2013-07-10 | 日立建机株式会社 | Hydraulic drive device for construction machine |
| CN103201523B (en) * | 2010-11-05 | 2015-05-06 | 日立建机株式会社 | Hydraulic drive device for construction machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2514098Y2 (en) | 1996-10-16 |
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