JPH036033U - - Google Patents
Info
- Publication number
- JPH036033U JPH036033U JP6590989U JP6590989U JPH036033U JP H036033 U JPH036033 U JP H036033U JP 6590989 U JP6590989 U JP 6590989U JP 6590989 U JP6590989 U JP 6590989U JP H036033 U JPH036033 U JP H036033U
- Authority
- JP
- Japan
- Prior art keywords
- prime mover
- setting
- reverse
- setting means
- rotational speed
- 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
- 230000007935 neutral effect Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
第１図ないし第４図は本考案の実施例を示し、
第１図は制御ブロツク図、第２図はコントローラ
の記憶エリア内に格納された目標回転数マツプを
示す説明図、第３図は他の目標回転数マツプを示
す説明図、第４図は原動機の回転数制御処理を示
す流れ図、第５図および第６図は従来技術を示し
、第５図はホイール式油圧シヨベルの制御回路図
、第６図はサーボ制御処理を示す流れ図である。
１……原動機、２……油圧ポンプ、３……タン
ク、５……油圧モータ（走行装置）、７……シリ
ンダ装置（アクチユエータ）、９，１０……制御
弁、１１……パイロツトポンプ、１２……パイロ
ツト弁、１２Ａ……走行ペダル（走行用の操作手
段）、１３……前後進切換弁（前後進用の操作手
段）、１７……ガバナ、１８……電動モータ（回
転数制御手段）、１９……燃料レバー装置（第１
の設定手段）、２０……ペダルセンサ（第２の設
定手段）、２１……回転角センサ、３１……切換
スイツチ（検出器）、３２……コントローラ。
1 to 4 show embodiments of the present invention,
Figure 1 is a control block diagram, Figure 2 is an explanatory diagram showing a target rotation speed map stored in the memory area of the controller, Figure 3 is an explanatory diagram showing another target rotation speed map, and Figure 4 is an explanatory diagram showing the prime mover. FIG. 5 and FIG. 6 show a conventional technique, FIG. 5 is a control circuit diagram of a wheeled hydraulic excavator, and FIG. 6 is a flow chart showing servo control processing. DESCRIPTION OF SYMBOLS 1... Prime mover, 2... Hydraulic pump, 3... Tank, 5... Hydraulic motor (traveling device), 7... Cylinder device (actuator), 9, 10... Control valve, 11... Pilot pump, 12 ...Pilot valve, 12A...Travel pedal (operation means for running), 13...Forward/forward switching valve (operating means for forward/backward motion), 17...Governor, 18...Electric motor (rotational speed control means) , 19...Fuel lever device (first
setting means), 20... pedal sensor (second setting means), 21... rotation angle sensor, 31... changeover switch (detector), 32... controller.
Claims (1)
、作業車両を走行させる走行装置と、該走行装置
による作業車両の走行速度を制御すべく、前記作
業車両に設けられた走行用の操作手段と、前記走
行装置により作業車両を前進、後進または停止さ
せるべく、前進、後進、中立のいずれかの位置に
切換操作される前後進用の操作手段と、少なくと
も前記原動機により駆動される作業用のアクチユ
エータと、該アクチユエータの作動時に前記原動
機の回転数を設定すべく、設定信号を出力する第
１の設定手段と、前記走行用の操作手段の操作量
に応じて前記原動機の回転数を設定すべく、設定
信号を出力する第２の設定手段と、該第１、第２
の設定手段から出力された設定信号に基づき前記
原動機の回転数を制御する回転数制御手段と、前
記前後進用の操作手段が中立位置から前、後進位
置に切換えられたか否かを検出する検出器と、該
検出器からの検出信号に基づき前記前後進用の操
作手段が中立位置から前、後進位置に切換えられ
たと判定したときに、前記第２の設定手段から出
力される設定信号を優先させて前記回転数制御手
段により原動機の回転数を制御させる走行判定制
御手段とから構成してなる作業車両の原動機制御
装置。 a prime mover; a traveling device driven by at least the prime mover and causing the working vehicle to travel; a driving operation means provided on the working vehicle to control the traveling speed of the working vehicle by the traveling device; and the traveling device. a forward and backward operation operating means that is operated to switch between forward, reverse, and neutral positions in order to move the work vehicle forward, backward, or stop; a work actuator driven by at least the prime mover; and the actuator. a first setting means for outputting a setting signal in order to set the rotational speed of the prime mover during operation; a second setting means for outputting, the first and second setting means;
rotational speed control means for controlling the rotational speed of the prime mover based on a setting signal output from the setting means; and detection for detecting whether or not the forward/reverse operating means has been switched from a neutral position to a forward or reverse position. and a setting signal outputted from the second setting means when it is determined that the forward/reverse operating means has been switched from a neutral position to a forward or reverse position based on a detection signal from the detector. and a driving determination control means for controlling the rotation speed of the prime mover by the rotation speed control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065909U JP2520464Y2 (en) | 1989-06-06 | 1989-06-06 | Motor control device for work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065909U JP2520464Y2 (en) | 1989-06-06 | 1989-06-06 | Motor control device for work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH036033U true JPH036033U (en) | 1991-01-22 |
| JP2520464Y2 JP2520464Y2 (en) | 1996-12-18 |
Family
ID=31598166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989065909U Expired - Fee Related JP2520464Y2 (en) | 1989-06-06 | 1989-06-06 | Motor control device for work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520464Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60189642A (en) * | 1984-03-07 | 1985-09-27 | Toyoda Autom Loom Works Ltd | Controller for number of revolutions of prime mover in loading vehicle |
-
1989
- 1989-06-06 JP JP1989065909U patent/JP2520464Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60189642A (en) * | 1984-03-07 | 1985-09-27 | Toyoda Autom Loom Works Ltd | Controller for number of revolutions of prime mover in loading vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2520464Y2 (en) | 1996-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |