JPH0482061U - - Google Patents
Info
- Publication number
- JPH0482061U JPH0482061U JP12715690U JP12715690U JPH0482061U JP H0482061 U JPH0482061 U JP H0482061U JP 12715690 U JP12715690 U JP 12715690U JP 12715690 U JP12715690 U JP 12715690U JP H0482061 U JPH0482061 U JP H0482061U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- prime mover
- setting means
- neutral
- setting signal
- 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 description 8
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図ないし第７図は本考案の実施例を示し、
第１図は操作レバー装置の斜視図、第２図は操作
レバー装置の正面図、第３図は制御ブロツク図、
第４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５図は他の
目標回転数マツプを示す説明図、第６図は原動機
の回転数制御処理を示す流れ図、第７図イ，ロは
作業と走行を繰返す場合のそれぞれ異なる原動機
の回転数特性を示す特性線図、第８図ないし第１
０図は従来技術を示し、第８図はホイール式油圧
シヨベルの制御回路図、第９図は操作レバー装置
の斜視図、第１０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、１７……カバナ、
１８……電動モータ（回転数制御手段）、２０…
…ペダルセンサ（第２の回転数設定手段）、２１
……回動角センサ、３１……操作レバー装置（前
後進用の操作手段）、３３……操作レバー、３４
……切換スイツチ（検出器）、３５……アツプダ
ウンスイツチ（第１の回転数設定手段）、３６…
…コントローラ、Ｎ′……中立位置、Ｆ……前進
位置、Ｒ……後進位置、Ｎ……中立ロツク位置。
1 to 7 show embodiments of the present invention,
Fig. 1 is a perspective view of the operating lever device, Fig. 2 is a front view of the operating lever device, Fig. 3 is a control block diagram,
Fig. 4 is an explanatory diagram showing the target rotation speed map stored in the memory area of the controller, Fig. 5 is an explanatory diagram showing other target rotation speed maps, and Fig. 6 is a flowchart showing the rotation speed control process of the prime mover. , Figures 7A and 7B are characteristic diagrams showing the rotation speed characteristics of different prime movers when repeatedly working and traveling, and Figures 8 to 1
0 shows the prior art, FIG. 8 is a control circuit diagram of a wheeled hydraulic excavator, FIG. 9 is a perspective view of an operating lever device, and FIG. 10 is a flowchart 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 traveling), 13 ... Forward/forward switching valve, 17 ... Cabana,
18... electric motor (rotation speed control means), 20...
...Pedal sensor (second rotation speed setting means), 21
... Rotation angle sensor, 31 ... Operation lever device (operation means for forward and backward movement), 33 ... Operation lever, 34
...Changing switch (detector), 35...Up-down switch (first rotation speed setting means), 36...
...controller, N'...neutral position, F...forward position, R...reverse position, N...neutral lock position.
Claims (1)
され、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、前進位置、後進位置または中立位
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、前記原動機の回転数を設定すべく
、設定信号を出力する回転数設定手段と、該回転
数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から
なる作業車両の原動機制御装置において、前記前
後進用の操作手段には、該操作手段を中立位置に
ロツクすべく、前記前進位置、後進位置、中立位
置に加えて中立ロツク位置を設け、さらに、前記
前後進用の操作手段が中立ロツク位置から他の切
換位置に切換えられた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
操作手段が中立ロツク位置から他の切換位置に切
換えられたと判定したとき、前記回転数設定手段
から出力される設定信号を所定の低レベルに低下
させ、前記回転数制御手段により原動機の回転数
を所定の低回転数に制御させる判定制御手段とを
設けたことを特徴とする作業車両の原動機制御装
置。 (2) 前記回転数設定手段は、前記アクチユエー
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の回転数設定手段と、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
の回転数設定手段とを含んでなる請求項(1)に記
載の作業車両の原動機制御装置。[Claims for Utility Model Registration] (1) A prime mover, at least a traveling device that is driven by the prime mover and causes the working vehicle to travel, and a driving device provided on the working vehicle to control the traveling speed of the working vehicle by the traveling device. an operating means for traveling forward and backward that is operated to switch to a forward position, a reverse position, or a neutral position so that the working vehicle is moved forward, backward, or stopped by the traveling device; a rotation speed setting means for outputting a setting signal to set the rotation speed of the prime mover; and a rotation speed setting means for outputting a setting signal to set the rotation speed of the prime mover, and a rotation speed for controlling the rotation speed of the prime mover based on the setting signal output from the rotation speed setting means. In the prime mover control device for a work vehicle, the operating means for forward and backward movement includes a neutral lock position in addition to the forward movement position, reverse movement position, and neutral position, in order to lock the operation means in a neutral position. further comprising a detector for detecting whether or not the forward/reverse operating means has been switched from a neutral lock position to another switching position;
When it is determined that the forward/reverse operation means has been switched from the neutral lock position to another switching position based on the detection signal from the detector, the setting signal output from the rotation speed setting means is set to a predetermined low level. and determination control means for controlling the rotation speed of the prime mover to a predetermined low rotation speed by the rotation speed control means. (2) The rotation speed setting means sets the rotation speed of the prime mover when the actuator is actuated,
a first rotational speed setting means that outputs a setting signal; and a second rotational speed setting means that outputs a setting signal to set the rotational speed of the prime mover according to the amount of operation of the driving operation means.
2. The motor control device for a work vehicle according to claim 1, further comprising rotation speed setting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12715690U JP2528143Y2 (en) | 1990-11-29 | 1990-11-29 | Motor control device for work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12715690U JP2528143Y2 (en) | 1990-11-29 | 1990-11-29 | Motor control device for work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0482061U true JPH0482061U (en) | 1992-07-16 |
| JP2528143Y2 JP2528143Y2 (en) | 1997-03-05 |
Family
ID=31874670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12715690U Expired - Fee Related JP2528143Y2 (en) | 1990-11-29 | 1990-11-29 | Motor control device for work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528143Y2 (en) |
-
1990
- 1990-11-29 JP JP12715690U patent/JP2528143Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528143Y2 (en) | 1997-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |