JPH03140602A - Active pulsation damper device - Google Patents

Active pulsation damper device

Info

Publication number
JPH03140602A
JPH03140602A JP27481389A JP27481389A JPH03140602A JP H03140602 A JPH03140602 A JP H03140602A JP 27481389 A JP27481389 A JP 27481389A JP 27481389 A JP27481389 A JP 27481389A JP H03140602 A JPH03140602 A JP H03140602A
Authority
JP
Japan
Prior art keywords
capacity
stroke
pulsation
damper
revolutions
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
Application number
JP27481389A
Other languages
Japanese (ja)
Inventor
Yuichi Yoshida
裕一 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP27481389A priority Critical patent/JPH03140602A/en
Publication of JPH03140602A publication Critical patent/JPH03140602A/en
Pending legal-status Critical Current

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  • Pipe Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE:To obtain a hydraulic device which is always less in the pulsation of oil pressure by making a computor, into which signals for number of revolutions and a stroke are inputted, control the capacity of an active pulsation damper to its optimum capacity corresponding to the number of revolutions and the stroke. CONSTITUTION:A hydraulic pump 1 and an actuator 2 function previously, and the capacity of an active pulsation damper 4 which makes the pulsation of oil pressure minimum is obtained through an experiment or simulation calculation for each case of number of revolutions and stroke. The data on the optimum capacity corresponding to above each case of the damper are stored in a computer 3. In the case of actual operation of a hydraulic device, the computer 3 receives signals from a sensor 5 for the number of revolutions and a stroke sensor 6, and reads the optimum capacity of the damper corresponding to each case of the number of revolutions and the stroke from a memory to issue a control signal for controlling the capacity of the active pulsation damper 4. Thus the capacity having the minimum pulsation of hydraulic pressure can be obtained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 〔従来の技術〕 従来の油圧システムにおける脈動除去は、第2図に示す
ように、定格作動時の脈動周波数にあわせてその容積を
決定したパルセージ璽ン・ダンパ8を用いて行っていた
0 〔発明が解決しようとする課題〕 従来の油圧システムにおいては、パルセーション・ダン
パの容積は固定であり、油圧ポンプの回転数が定格作動
時以外の値の時には、脈動周波数がダンパの容積設定値
に対応する周波数と異なるため、脈動を減少させること
はできなかった0また、脈動は油圧システムのインピー
ダンスに値のときに合わせて設定してしまうと、アクチ
ュエータ等が作動した場合、システムインピーダンスが
変化し、脈動を除去することができなくなることがあっ
た。
[Detailed Description of the Invention] [Industrial Field of Application] [Prior Art] As shown in Figure 2, pulsation in a conventional hydraulic system is eliminated by determining its volume according to the pulsation frequency during rated operation. [Problems to be Solved by the Invention] In conventional hydraulic systems, the volume of the pulsation damper is fixed, and the rotation speed of the hydraulic pump is other than the rated operating speed. When the value is 0, the pulsation cannot be reduced because the pulsation frequency is different from the frequency corresponding to the damper volume setting value.In addition, the pulsation is set to match the impedance of the hydraulic system when the value is 0. When an actuator or the like operates, the system impedance changes, making it impossible to eliminate pulsation.

本発明は上記の課題を解決しようとするものである。The present invention seeks to solve the above problems.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のアクティブφパルセーション・ダンパ装置は、
油圧ポンプに設けられた回転数センサ、上記油圧ポンプ
が配管により接続されたアクチュエータに設けられたス
トロークセンサ、上記回転数センサとストロークセンサ
よりそれぞれ回転数信号とストローク信号を入力して最
適容量を演算するコンピュータ、および上記油圧ポンプ
とアクチュエータが接続された配管に接続され上記コン
ピュータより制御信号を入力する容量可変のアクティブ
・パルセーション・ダンパな備えたことを特徴としてい
る。
The active φ pulsation damper device of the present invention includes:
Calculate the optimal capacity by inputting the rotation speed signal and stroke signal from the rotation speed sensor installed on the hydraulic pump, the stroke sensor installed on the actuator to which the hydraulic pump is connected via piping, and the rotation speed sensor and stroke sensor, respectively. A variable capacity active pulsation damper is connected to piping connected to the hydraulic pump and actuator and inputs a control signal from the computer.

〔作用〕[Effect]

上記において、油圧ポンプ回転数及びアクチュエータス
トロークのそれぞれのケースに対応した油圧の脈動を最
も小さくするアクティブ・パルセーション・ダンパの最
適容量のデータを、あらかじめコンピュータにメモリし
ておく。
In the above, data on the optimum capacity of the active pulsation damper that minimizes hydraulic pulsation corresponding to each case of hydraulic pump rotation speed and actuator stroke is stored in advance in the computer.

上記の状態で油圧ポンプ及びアクチュエータを駆動する
と、コンピュータは回転数センサ及びストロークセンサ
よシそれぞれの信号を入力し、それぞれの回転数及びス
トロークのケースに対応した最適なダンパ容量をメモリ
より読み取って制御信号を出力し、アクティブ・パルセ
ージ璽ン・ダンパの容量を制御し、最も油圧の脈動の少
ない容量とする。
When the hydraulic pump and actuator are driven in the above conditions, the computer inputs the signals from the rotation speed sensor and stroke sensor, reads the optimal damper capacity corresponding to each rotation speed and stroke case from memory, and controls it. Outputs a signal and controls the capacity of the active pulseage damper to achieve the capacity with the least hydraulic pulsation.

上記により、変化する油圧ポンプの回転数及びアクチュ
エータのストロークに対応させてダンパ容量を最適容量
に制御できるものとしたため、常に油圧の脈動が少ない
油圧装置とすることができた0 〔実施例〕 本発明の一実施例を第1図に示す。
As a result of the above, the damper capacity can be controlled to the optimum capacity in response to the changing rotational speed of the hydraulic pump and the stroke of the actuator, making it possible to create a hydraulic system with always minimal hydraulic pulsation.0 [Example] Book An embodiment of the invention is shown in FIG.

第1図に示す本実施例は、油圧ポンプ1が配管7を介し
てアクチュエータ2に接続された油圧装置において、上
記油圧ポンプ1に設けられた回転数センサ5、上記アク
チュエータ2に設けられたストロークセンサ6、上記回
転数センサ5とストロークセンサ6より信号を入力する
コンピュータ3、同:1/ピユータ3より信号を入力し
上記配管7に接続された容量可変のアクティブ・パルセ
ージ、l/・ダンパ4を備えている。
The present embodiment shown in FIG. 1 is a hydraulic system in which a hydraulic pump 1 is connected to an actuator 2 via a pipe 7. A sensor 6, a computer 3 which inputs signals from the rotation speed sensor 5 and the stroke sensor 6, a variable capacity active pulseage which inputs signals from the computer 3 and which is connected to the piping 7, and a damper 4. It is equipped with

上記において、あらかじめ油圧ポンプ1及びアクチュエ
ータ2を作動させ、それぞれの回転数及びストロークの
それぞれのケースに対して油圧の脈動が最も小さくなる
アクティブ・パルセーション・ダンパ4の容量を実験又
はシュミレーション計算によって求めておき、油圧ポン
プ回転数及びアクチュエータストロークのそれぞれのケ
ースに対応した最適なダンパ容量のデータをコンピュー
タ3にメモリさせておく。
In the above, the hydraulic pump 1 and the actuator 2 are operated in advance, and the capacity of the active pulsation damper 4 that minimizes the hydraulic pulsation for each case of each rotation speed and stroke is determined by experiment or simulation calculation. Then, data on the optimum damper capacity corresponding to each case of the hydraulic pump rotation speed and actuator stroke is stored in the computer 3.

上記油圧ポンプ1とアクチュエータ2よりなる油圧装置
の実際の稼動時においては、コンピュータ3は回転数セ
ンサ5及びストロークセンサ6よりそれぞれ信号を入力
し、それぞれの回転数及びストロークのケースに対応し
た最適なダンパ容量をメモリより読み取って制御信号を
出力し、アクティブ・パルセーション・ダンパ4の容量
を制御し、最も油圧の脈動の少ない容量とする。
During actual operation of the hydraulic system consisting of the hydraulic pump 1 and actuator 2, the computer 3 inputs signals from the rotation speed sensor 5 and the stroke sensor 6, respectively, and calculates the optimum signal corresponding to each rotation speed and stroke case. The damper capacity is read from the memory, a control signal is output, and the capacity of the active pulsation damper 4 is controlled to the capacity with the least hydraulic pulsation.

上記により、変化する油圧ポンプの回転数及びアクチエ
エータのストロークに対応させてダンパ容量を最適容量
に制御できるものとしたため、常に油圧の脈動が少ない
油圧装置とすることができた0 〔発明の効果〕 本発明のアクティブ拳パルセージ璽ンーfンパ装置は、
油圧ポンプに設けられた回転数セ/すとアクチュエータ
に設けられたストロークセンナよりそれぞれ回転数信号
とストローク信号をコンピュータがへカレ、同コンピュ
ータがアクティブ・パルセージ、ン・ダンパの容量を制
御することによって、ダンパ容量を変化する油圧ポンプ
の回転数及ヒアクチュエータのストロークに対応した最
適容量に制御できるものとしたため、常に油圧の脈動が
少ない油圧装置とすることができた。
As a result of the above, the damper capacity can be controlled to the optimum capacity in response to the changing rotational speed of the hydraulic pump and the stroke of the actuator, thereby making it possible to create a hydraulic system with always minimal hydraulic pulsation.0 [Effects of the Invention] The active fist pulseage device of the present invention includes:
A computer receives the rotation speed signal and stroke signal from the rotation speed sensor installed in the hydraulic pump and the stroke sensor installed in the actuator, respectively, and the computer controls the active pulseage and the capacity of the damper. Since the damper capacity can be controlled to the optimum capacity corresponding to the changing rotational speed of the hydraulic pump and the stroke of the actuator, it is possible to create a hydraulic system in which there is always little hydraulic pulsation.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の説明図、第2図は従来の装
置の説明図である。 1・・・油圧ポンプ、 2・・・アクチュエータ、3・
・・コンピュータ、 4・・・アクティブ・パルセーション・ダンパ、5・・
−回転数センサ、  6・・・ストロークセンサ、7・
・・配管。
FIG. 1 is an explanatory diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a conventional device. 1... Hydraulic pump, 2... Actuator, 3...
...Computer, 4...Active pulsation damper, 5...
- Rotation speed sensor, 6... Stroke sensor, 7.
··Piping.

Claims (1)

【特許請求の範囲】[Claims] 油圧ポンプに設けられた回転数センサ、上記油圧ポンプ
が配管により接続されたアクチュエータに設けられたス
トロークセンサ、上記回転数センサとストロークセンサ
よりそれぞれ回転数信号とストローク信号を入力して最
適容量を演算するコンピュータ、および上記油圧ポンプ
とアクチュエータが接続された配管に接続され上記コン
ピュータより制御信号を入力する容量可変のアクティブ
・パルセーション・ダンパを備えたことを特徴とするア
クティブ・パルセーション・ダンパ装置。
The optimum capacity is calculated by inputting the rotation speed signal and stroke signal from the rotation speed sensor installed on the hydraulic pump, the stroke sensor installed on the actuator to which the hydraulic pump is connected via piping, and the rotation speed sensor and stroke sensor, respectively. and a variable capacity active pulsation damper connected to piping to which the hydraulic pump and actuator are connected, and receiving a control signal from the computer.
JP27481389A 1989-10-24 1989-10-24 Active pulsation damper device Pending JPH03140602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27481389A JPH03140602A (en) 1989-10-24 1989-10-24 Active pulsation damper device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27481389A JPH03140602A (en) 1989-10-24 1989-10-24 Active pulsation damper device

Publications (1)

Publication Number Publication Date
JPH03140602A true JPH03140602A (en) 1991-06-14

Family

ID=17546923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27481389A Pending JPH03140602A (en) 1989-10-24 1989-10-24 Active pulsation damper device

Country Status (1)

Country Link
JP (1) JPH03140602A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008144923A (en) * 2006-12-13 2008-06-26 Nidec Tosok Corp Pulsation preventing structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60139903A (en) * 1983-12-27 1985-07-24 Mitsubishi Heavy Ind Ltd Servo valve
JPS6267307A (en) * 1985-09-19 1987-03-27 Kayaba Ind Co Ltd Cushioning device for cylinder
JPS62200034A (en) * 1986-02-27 1987-09-03 Hino Motors Ltd Vibration control equipment for clutch control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60139903A (en) * 1983-12-27 1985-07-24 Mitsubishi Heavy Ind Ltd Servo valve
JPS6267307A (en) * 1985-09-19 1987-03-27 Kayaba Ind Co Ltd Cushioning device for cylinder
JPS62200034A (en) * 1986-02-27 1987-09-03 Hino Motors Ltd Vibration control equipment for clutch control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008144923A (en) * 2006-12-13 2008-06-26 Nidec Tosok Corp Pulsation preventing structure

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