JP2002048236A - Traveling and driving control device for asphalt finisher, and its control method - Google Patents
Traveling and driving control device for asphalt finisher, and its control methodInfo
- Publication number
- JP2002048236A JP2002048236A JP2000236414A JP2000236414A JP2002048236A JP 2002048236 A JP2002048236 A JP 2002048236A JP 2000236414 A JP2000236414 A JP 2000236414A JP 2000236414 A JP2000236414 A JP 2000236414A JP 2002048236 A JP2002048236 A JP 2002048236A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic motor
- traveling
- asphalt finisher
- hydraulic pump
- controller
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、アスファルトフ
ィニッシャの走行駆動制御装置及びその制御方法に関す
るものであり、特に、ホイール式のアスファルトフィニ
ッシャに於て、走行起動時や上り坂或いは段差越え走行
時等のエンジンストールや走行不能を防止し、円滑な駆
動・走行を行えるようにしたアスファルトフィニッシャ
の走行駆動制御装置及びその制御方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive control device for an asphalt finisher and a control method therefor, and more particularly to a wheel-type asphalt finisher when starting to run, traveling uphill or traveling over a step. The present invention relates to a traveling drive control device for an asphalt finisher and a control method for the same, which can prevent engine stall and running disability and enable smooth driving and traveling.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来の
此種ホイール式のアスファルトフィニッシャは現場間の
移動等を素早く行う必要があり、反対に、施工時には牽
引力を十分確保しなければならず、このため、移動時と
施工時とで走行減速比は大きく異なっていた。従って、
減速比の小さい移動時には走行起動時や上り坂或いは段
差越え走行時等の走行駆動力の確保が著しく困難とな
り、エンジンストールや走行不能等の問題が発生し円滑
な走行が行えなかった。2. Description of the Related Art A conventional wheel-type asphalt finisher of this type needs to quickly move between sites and the like, and on the contrary, it has to secure a sufficient traction force during construction. For this reason, the traveling speed reduction ratio was greatly different between the time of movement and the time of construction. Therefore,
When the vehicle is traveling at a low reduction ratio, it is extremely difficult to secure a traveling drive force at the time of traveling start, traveling uphill, traveling over a step, etc., and problems such as engine stall and traveling inability occur, and smooth traveling cannot be performed.
【０００３】そこで、アスファルトフィニッシャに於
て、走行起動時や上り坂或いは段差越え走行時等のエン
ジンストールや走行不能を防止し、円滑な駆動・走行を
行えるようにするために解決すべき技術的課題が生じて
くるのであり、本発明はこの課題を解決することを目的
とする。[0003] Therefore, in the asphalt finisher, there is a technical problem to be solved in order to prevent engine stall and inability to run at the start of running, running uphill or running over a step, and to enable smooth driving and running. A problem arises, and the present invention aims to solve this problem.
【０００４】[0004]
【課題を解決するための手段】本発明は上記目的を達成
するために提案されたものであり、油圧ポンプに油圧モ
ータを接続し、該油圧モータにより減速装置を介して走
行車輪を回転駆動するように構成されたアスファルトフ
ィニッシャの走行駆動装置に於て、前記油圧モータに回
転数検出センサを設けると共に、該回転数検出センサを
コントローラに接続し、且つ、該コントローラを前記油
圧ポンプ及び前記油圧モータの制御手段に接続し、更
に、該コントローラに前記油圧ポンプの吐出量を制御し
て走行速度を可変する走行設定ダイヤルと前記油圧モー
タの吸収量を制御して「走行モード」と「施工モード」
の設定切替えを行うモード切替えスイッチとを接続した
アスファルトフィニッシャの走行駆動制御装置、及び、
油圧ポンプに油圧モータを接続し、該油圧モータにより
減速装置を介して走行車輪を回転駆動するように構成さ
れたアスファルトフィニッシャの走行駆動装置に於て、
前記油圧モータに回転数検出センサを設けると共に、該
回転数検出センサをコントローラに接続し、且つ、該コ
ントローラを前記油圧ポンプ及び前記油圧モータの制御
手段に接続し、更に、該コントローラに前記油圧ポンプ
の吐出量を制御して走行速度を可変する走行設定ダイヤ
ルと前記油圧モータの吸収量を制御して「走行モード」
と「施工モード」の設定切替えを行うモード切替えスイ
ッチとを接続し、アスファルトフィニッシャの走行モー
ド起動時は前記コントローラにより、前記油圧モータの
吸収量を大とし、且つ、前記油圧ポンプの吐出量を小近
傍に設定して該アスファルトフィニッシャを起動し、そ
して、該起動後にオペレータが前記走行設定ダイヤルを
操作して前記油圧ポンプの吐出量を大とし、これによっ
てアスファルトフィニッシャが加速され、前記回転数検
出センサの回転数が所定回転数になった時は、前記コン
トローラによって前記油圧モータの吸収量を小とし、且
つ、前記油圧ポンプの吐出量を小としてアスファルトフ
ィニッシャを定速走行させるように制御するアスファル
トフィニッシャの走行駆動制御方法、並びに、油圧ポン
プに油圧モータを接続し、該油圧モータにより減速装置
を介して走行車輪を回転駆動するように構成されたアス
ファルトフィニッシャの走行駆動装置に於て、前記油圧
モータに回転数検出センサを設けると共に、該回転数検
出センサをコントローラに接続し、且つ、該コントロー
ラを前記油圧ポンプ及び前記油圧モータの制御手段に接
続し、更に、該コントローラに前記油圧ポンプの吐出量
を制御して走行速度を可変する走行設定ダイヤルと前記
油圧モータの吸収量を制御して「走行モード」と「施工
モード」の設定切替えを行うモード切替えスイッチとを
接続し、アスファルトフィニッシャが走行モードで定速
走行時に、走行負荷の増大によりアスファルトフィニッ
シャが低速になり、前記回転数検出センサの回転数が所
定回転数未満になった時、前記コントローラにより、前
記油圧モータの吸収量を大とし、且つ、前記油圧ポンプ
の吐出量を大としてアスファルトフィニッシャを増速
し、これによって前記回転数検出センサの回転数が所定
回転数になった時は、前記油圧モータの吸収量を小と
し、且つ、前記油圧ポンプの吐出量を小としてアスファ
ルトフィニッシャを定速走行させるように制御するアス
ファルトフィニッシャの走行駆動制御方法を提供するも
のである。SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object. A hydraulic motor is connected to a hydraulic pump, and the traveling wheels are driven to rotate by a hydraulic motor via a reduction gear. In the asphalt finisher traveling drive device configured as described above, the hydraulic motor is provided with a rotation speed detection sensor, the rotation speed detection sensor is connected to a controller, and the controller is connected to the hydraulic pump and the hydraulic motor. The driving mode is controlled by controlling the discharge amount of the hydraulic pump to vary the traveling speed, and the absorption amount of the hydraulic motor is controlled by the controller.
Traveling drive control device of an asphalt finisher connected to a mode changeover switch for performing setting changeover, and
In a traveling drive device of an asphalt finisher configured to connect a hydraulic motor to a hydraulic pump and rotationally drive traveling wheels via the reduction gear by the hydraulic motor,
The hydraulic motor is provided with a rotation speed detection sensor, the rotation speed detection sensor is connected to a controller, and the controller is connected to the hydraulic pump and control means of the hydraulic motor. A travel setting dial that controls the discharge rate of the hydraulic motor to vary the travel speed and the absorption amount of the hydraulic motor to control the travel mode
And a mode changeover switch for changing the setting of the “construction mode”, and when the asphalt finisher is started in the running mode, the controller increases the absorption amount of the hydraulic motor and decreases the discharge amount of the hydraulic pump. The asphalt finisher is activated by setting the vicinity thereof, and after the activation, the operator operates the travel setting dial to increase the discharge amount of the hydraulic pump, whereby the asphalt finisher is accelerated, and the rotation speed detection sensor is operated. When the rotation speed of the asphalt finisher has reached a predetermined rotation speed, the controller reduces the absorption amount of the hydraulic motor and reduces the discharge amount of the hydraulic pump to control the asphalt finisher to run at a constant speed. Traveling drive control method and a hydraulic motor Subsequently, in a traveling drive device of an asphalt finisher configured to rotationally drive traveling wheels by a hydraulic motor through a speed reduction device, the hydraulic motor is provided with a rotational speed detection sensor, and the rotational speed detection sensor Connected to a controller, and the controller is connected to control means of the hydraulic pump and the hydraulic motor, and the controller further controls a discharge amount of the hydraulic pump to vary a travel speed, and a travel setting dial. Connect a mode changeover switch that controls the setting of `` running mode '' and `` construction mode '' by controlling the absorption amount of the hydraulic motor, and when the asphalt finisher is running at a constant speed in the running mode, the asphalt finisher When the speed becomes low and the rotation speed of the rotation speed detection sensor falls below a predetermined rotation speed, the controller By the roller, the absorption amount of the hydraulic motor is increased, and the discharge amount of the hydraulic pump is increased to increase the speed of the asphalt finisher, whereby when the rotation speed of the rotation speed detection sensor reaches a predetermined rotation speed, Another object of the present invention is to provide a traveling drive control method for an asphalt finisher in which the absorption amount of the hydraulic motor is reduced and the discharge amount of the hydraulic pump is reduced to control the asphalt finisher to travel at a constant speed.
【０００５】[0005]
【発明の実施の形態】以下、本発明の一実施の形態を図
１及び図２に従って詳述する。図１に於て、１はアスフ
ァルトフィニッシャの走行駆動制御装置であり、該アス
ファルトフィニッシャの走行駆動制御装置１は油圧ポン
プ２に油圧モータ３が接続されると共に、該油圧モータ
３に減速装置４を介して走行車輪５，５が接続され、更
に、前記油圧モータ３に回転数検出センサ６が設けられ
ると共に、該回転数検出センサ６に、内部にマイクロコ
ンピュータ、Ａ／Ｄ変換器、Ｄ／Ａ変換器及びメモリ
（図示せず）を搭載したコントローラ７が接続され、且
つ、該コントローラ７に前記油圧ポンプ２及び前記油圧
モータ３の制御手段である傾転レギュレータ８，９が接
続されている。又、前記コントローラ７には前記油圧ポ
ンプ２の吐出量を制御して走行速度を変化させる走行設
定ダイヤル１０と前記油圧モータ３の吸収量を制御して
「走行モード」と「施工モード」の設定切替えを行うモ
ード切替えスイッチ１１とが接続されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. In FIG. 1, reference numeral 1 denotes a traveling drive control device of an asphalt finisher. The traveling drive control device 1 of the asphalt finisher has a hydraulic motor 3 connected to a hydraulic pump 2 and a speed reduction device 4 connected to the hydraulic motor 3. The running wheels 5 and 5 are connected to each other, and the hydraulic motor 3 is further provided with a rotation speed detection sensor 6. The rotation speed detection sensor 6 has a microcomputer, an A / D converter, and a D / A A controller 7 equipped with a converter and a memory (not shown) is connected, and the controller 7 is connected to tilt regulators 8 and 9 which are control means for the hydraulic pump 2 and the hydraulic motor 3. The controller 7 controls a travel setting dial 10 for controlling the discharge amount of the hydraulic pump 2 to change the travel speed, and controls the absorption amount of the hydraulic motor 3 to set “travel mode” and “construction mode”. A mode changeover switch 11 for performing a changeover is connected.
【０００６】そして、前記走行設定ダイヤル１０はオペ
レータの操作により前記コントローラ７を介して前記油
圧ポンプ２の前記傾転レギュレータ８に指令信号を送る
ように構成され、該走行設定ダイヤル１０が低速側に操
作された時、前記傾転レギュレータ８に小傾転となるよ
うに信号が送られ、前記油圧ポンプ２は吐出量が小とな
る。反対に、前記走行設定ダイヤル１０が高速側に操作
された時、前記傾転レギュレータ８に大傾転となるよう
に信号が送られ前記油圧ポンプ２は吐出量が大となる。The travel setting dial 10 is configured to send a command signal to the tilt regulator 8 of the hydraulic pump 2 via the controller 7 by an operator's operation. When operated, a signal is sent to the tilt regulator 8 to make a small tilt, and the discharge amount of the hydraulic pump 2 becomes small. Conversely, when the travel setting dial 10 is operated to the high speed side, a signal is sent to the tilt regulator 8 so as to make a large tilt, and the hydraulic pump 2 increases the discharge amount.
【０００７】更に、前記モード切替えスイッチ１１はオ
ペレータの操作により前記コントローラ７を介して前記
油圧モータ３の前記傾転レギュレータ９に指令信号を送
るように構成され、前記モード切替えスイッチ１１が
「走行モード」に切替えられた時、前記傾転レギュレー
タ９に小傾転となるように信号が送られ、前記油圧モー
タ３は吸収量が小となる。反対に、前記モード切替えス
イッチ１１が前記「施工モード」に切替えられた時、前
記傾転レギュレータ９に大傾転となるように信号が送ら
れ前記油圧モータ３は吸収量が大となる。Further, the mode changeover switch 11 is configured to send a command signal to the tilt regulator 9 of the hydraulic motor 3 via the controller 7 by an operation of an operator, and the mode changeover switch 11 is set to a "running mode". , A signal is sent to the tilt regulator 9 to make a small tilt, and the absorption amount of the hydraulic motor 3 becomes small. Conversely, when the mode changeover switch 11 is switched to the “construction mode”, a signal is sent to the tilt regulator 9 to make a large tilt, and the hydraulic motor 3 absorbs a large amount.
【０００８】而して、図１及び図２に示す如く、前記モ
ード切替えスイッチ１０が「走行モード」に設定され、
前記油圧モータ３の吸収量が小に設定されている状態
で、アスファルトフィニッシャを走行起動する時は、前
記コントローラ７の制御により、前記傾転レギュレータ
８の傾転角を小近傍に制御して、前記油圧ポンプ２の吐
出量を小近傍とし、且つ、前記傾転レギュレータ９の傾
転角を大側に制御し、前記油圧モータ３の吸収量を大と
して該アスファルトフィニッシャを起動させる。As shown in FIGS. 1 and 2, the mode changeover switch 10 is set to the "running mode".
When the asphalt finisher is started to run while the absorption amount of the hydraulic motor 3 is set to be small, the tilt angle of the tilt regulator 8 is controlled to be close to small by the control of the controller 7, The discharge amount of the hydraulic pump 2 is set to a small value, the tilt angle of the tilt regulator 9 is controlled to a large value, and the absorption amount of the hydraulic motor 3 is increased to start the asphalt finisher.
【０００９】そして、起動後に、オペレータが前記走行
設定ダイヤル１０を操作して前記油圧ポンプ２の吐出量
を大とすると、アスファルトフィニッシャは増速し、前
記回転数検出センサ６の回転数も高くなるが、該回転数
が所定回転数Ｎ1になった時、前記コントローラ７の制
御により前記傾転レギュレータ９を介して前記油圧モー
タ３の吸収量を小とし、且つ、前記傾転レギュレータ８
を介して前記油圧ポンプ２の吐出量を小としてアスファ
ルトフィニッシャを定速走行に移行させる。この時、前
記回転数検出センサ６の回転数はＮ3となる。When the operator operates the travel setting dial 10 to increase the discharge amount of the hydraulic pump 2 after the start-up, the asphalt finisher increases in speed and the rotational speed of the rotational speed detection sensor 6 also increases. However, when the rotation speed reaches a predetermined rotation speed N 1 , the absorption amount of the hydraulic motor 3 is reduced through the tilt regulator 9 under the control of the controller 7, and the tilt regulator 8
To reduce the discharge amount of the hydraulic pump 2 to make the asphalt finisher shift to constant speed traveling. At this time, the rotational speed of said rotational speed detecting sensor 6 becomes N 3.
【００１０】斯くして、走行モード起動時に大きな駆動
力を確保して、エンジンストールや走行不能を発生させ
ることなく、起動を円滑に行うことができ、又、起動
後、スムーズに定速走行に移行させることができる。In this manner, a large driving force is ensured at the time of starting the driving mode, so that the starting can be performed smoothly without causing the engine stall or running impediment. Can be migrated.
【００１１】又、前記モード切替えスイッチ１１が「走
行モード」に設定されて、前記油圧モータ３の吸収量が
小に設定され、且つ、前記油圧ポンプ２の吐出量が小に
設定されている状態で、前記回転数検出センサ６の回転
数がＮ3となり、アスファルトフィニッシャが定速走行
時に、上り坂や段差越え等により走行負荷が増大して、
アスファルトフィニッシャが低速になり、前記回転数検
出センサ６の回転数が所定回転数Ｎ2未満になった時
は、前記コントローラ７の制御により、前記傾転レギュ
レータ９を介して前記油圧モータ３の吸収量を大とし、
且つ、前記傾転レギュレータ８を介して前記油圧ポンプ
２の吐出量を大としてアスファルトフィニッシャを増速
し、これによって、前記回転数検出センサ６の回転数が
所定回転数Ｎ2になった時、前記油圧モータ３の吸収量
を小とし、且つ、前記油圧ポンプ２の吐出量を小として
アスファルトフィニッシャを再び定速走行させる。この
時、前記回転数検出センサ６の回転数はＮ3となる。A state in which the mode changeover switch 11 is set to the "running mode", the absorption amount of the hydraulic motor 3 is set to a small value, and the discharge amount of the hydraulic pump 2 is set to a small value. in, speed N 3 next to the rotational speed detecting sensor 6, when the asphalt finisher is constant speed running, the running load is increased by uphill and steps beyond the like,
When the speed of the asphalt finisher becomes low and the rotation speed of the rotation speed detection sensor 6 becomes less than the predetermined rotation speed N 2 , the hydraulic motor 3 is absorbed by the tilt regulator 9 under the control of the controller 7. Large amount,
And, when the discharge amount of the hydraulic pump 2 is increased through the tilt regulator 8 to increase the speed of the asphalt finisher, whereby the rotational speed of the rotational speed detection sensor 6 reaches a predetermined rotational speed N 2 , The absorption amount of the hydraulic motor 3 is reduced, and the discharge amount of the hydraulic pump 2 is reduced, so that the asphalt finisher runs at a constant speed again. At this time, the rotational speed of said rotational speed detecting sensor 6 becomes N 3.
【００１２】斯くして、アスファルトフィニッシャが走
行モードで定速走行時に、上り坂や段差越え等の走行負
荷の増大によりアスファルトフィニッシャが低速になっ
た時も、大きな駆動力を確保して、エンジンストールや
走行不能を発生させることなく円滑に増速が行え、又、
増速後、スムーズに定速走行に移行させることができ
る。[0012] Thus, even when the asphalt finisher is traveling at a constant speed in the traveling mode and the asphalt finisher becomes slow due to an increase in the traveling load such as uphill or over a step, the engine stall is ensured. Speed increase can be performed smoothly without causing or running inability,
After the speed increase, it is possible to smoothly shift to the constant speed running.
【００１３】尚、前記モード切替えスイッチ１１が「施
工モード」に設定され、前記油圧モータ３の吸収量が大
に設定されている状態に於ては、アスファルトフィニッ
シャによる施工が行え、オペレータが前記走行設定ダイ
ヤル１０を大に操作して前記油圧ポンプ２の吐出量を大
とするとアスファルトフィニッシャは増速し、反対にオ
ペレータが前記走行設定ダイヤル１０を小に操作して前
記油圧ポンプ２の吐出量を小とするとアスファルトフィ
ニッシャは減速し、この時に、特に、前記コントローラ
７による補正制御は行われない。When the mode changeover switch 11 is set to the "construction mode" and the absorption amount of the hydraulic motor 3 is set to a large value, construction can be performed by the asphalt finisher, and If the discharge amount of the hydraulic pump 2 is increased by operating the setting dial 10 to a large value, the asphalt finisher increases in speed, and conversely, the operator operates the travel setting dial 10 to decrease the discharge amount of the hydraulic pump 2. If the value is small, the asphalt finisher decelerates, and at this time, the correction control by the controller 7 is not particularly performed.
【００１４】又、本発明は、本発明の精神を逸脱しない
限り種々の改変を為すことができ、そして、本発明が該
改変されたものに及ぶことは当然である。The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
【００１５】[0015]
【発明の効果】本発明は上記一実施の形態に詳述したよ
うに、請求項１記載の発明はアスファルトフィニッシャ
の走行駆動装置に於て、油圧モータに回転数検出センサ
を設けると共に、該回転数検出センサをコントローラに
接続し、且つ、該コントローラを油圧ポンプ及び前記油
圧モータの制御手段に接続し、更に、該コントローラに
前記油圧ポンプの吐出量を制御して走行速度を可変する
走行設定ダイヤルと前記油圧モータの吸収量を制御して
「走行モード」と「施工モード」の設定切替えを行うモ
ード切替えスイッチとを接続したから、状況に応じて必
要な駆動力が確保でき、アスファルトフィニッシャの走
行起動や、上り坂或いは段差越え等の駆動・走行が円滑
に行える。According to the present invention, as described in detail in the above embodiment, the invention according to claim 1 provides a traveling drive device for an asphalt finisher, wherein a hydraulic motor is provided with a rotation speed detection sensor, and the rotation speed sensor is provided. A travel setting dial for connecting a number detection sensor to a controller, connecting the controller to control means for the hydraulic pump and the hydraulic motor, and further controlling the discharge amount of the hydraulic pump to the controller to vary the travel speed; And the mode changeover switch for controlling the setting of the "running mode" and the "construction mode" by controlling the absorption amount of the hydraulic motor, the necessary driving force can be secured according to the situation, and the running of the asphalt finisher Startup and driving / running on an uphill or over a step can be performed smoothly.
【００１６】又、請求項２記載の発明はアスファルトフ
ィニッシャの走行モード起動時はコントローラにより、
油圧モータの吸収量を大とし、且つ、油圧ポンプの吐出
量を小近傍に設定して該アスファルトフィニッシャを起
動し、そして、該起動後にオペレータが走行設定ダイヤ
ルを操作して前記油圧ポンプの吐出量を大とし、これに
よってアスファルトフィニッシャが加速され、回転数検
出センサの回転数が所定回転数になった時は、前記コン
トローラによって前記油圧モータの吸収量を小とし、且
つ、前記油圧ポンプの吐出量を小としてアスファルトフ
ィニッシャを定速走行させるように制御するから、走行
起動時に大きな駆動力を確保して起動を円滑に行え、且
つ、起動後、スムーズに定速走行に移行することができ
る。Further, according to the present invention, when the running mode of the asphalt finisher is started, the controller operates by the controller.
The asphalt finisher is started by increasing the absorption amount of the hydraulic motor and setting the discharge amount of the hydraulic pump to a small value, and after the start, the operator operates the travel setting dial to discharge the hydraulic pump. When the asphalt finisher is accelerated by this and the rotation speed of the rotation speed detection sensor reaches a predetermined rotation speed, the absorption amount of the hydraulic motor is reduced by the controller, and the discharge amount of the hydraulic pump is reduced. Is controlled so that the asphalt finisher runs at a constant speed, so that a large driving force can be secured at the time of starting the running, the starting can be performed smoothly, and the running can be smoothly shifted to the constant speed after the start.
【００１７】更に、請求項３記載の発明はアスファルト
フィニッシャが走行モードで定速走行時に、走行負荷の
増大によりアスファルトフィニッシャが低速になり、前
記回転数検出センサの回転数が所定回転数未満になった
時、前記コントローラにより、前記油圧モータの吸収量
を大とし、且つ、前記油圧ポンプの吐出量を大としてア
スファルトフィニッシャを増速し、これによって前記回
転数検出センサの回転数が所定回転数になった時は、前
記油圧モータの吸収量を小とし、且つ、前記油圧ポンプ
の吐出量を小としてアスファルトフィニッシャを定速走
行させるように制御するから、走行モードで定速走行時
に、上り坂や段差越え等の走行負荷の増大によりアスフ
ァルトフィニッシャが低速になった時も大きな駆動力を
確保して増速を円滑に行え、且つ、増速後、スムーズに
定速走行に移行することができる。Further, according to the third aspect of the present invention, when the asphalt finisher is traveling at a constant speed in the traveling mode, the asphalt finisher decreases in speed due to an increase in traveling load, and the rotational speed of the rotational speed detection sensor becomes less than a predetermined rotational speed. When the controller increases the absorption amount of the hydraulic motor and increases the discharge amount of the hydraulic pump to increase the speed of the asphalt finisher, the rotation speed of the rotation speed detection sensor reaches a predetermined rotation speed. When this happens, the absorption amount of the hydraulic motor is reduced, and the discharge amount of the hydraulic pump is controlled to be small so that the asphalt finisher runs at a constant speed. Even when the asphalt finisher becomes slow due to an increase in running load such as over a step, a large driving force is secured to increase speed. To perform, and may transition after accelerated, smoothly constant speed running.
【００１８】斯くして、本発明はアスファルトフィニッ
シャに於て、走行起動時や上り坂或いは段差越え走行時
等のエンジンストールや走行不能を防止し、円滑な駆動
・走行を行なうことができる等、正に著大なる効果を奏
する発明である。Thus, according to the present invention, in an asphalt finisher, it is possible to prevent engine stall or inability to run at the time of starting running, running uphill or running over a step, and perform smooth driving and running. This is an invention that has an extremely great effect.
【図１】本発明の一実施の形態を示し、アスファルトフ
ィニッシャの走行駆動制御装置の説明図。FIG. 1 shows an embodiment of the present invention and is an explanatory diagram of a traveling drive control device for an asphalt finisher.
【図２】図１の回転数検出センサの回転数、油圧モータ
の吸収量及び油圧ポンプの吐出量と時間の関係を示すグ
ラフ。2 is a graph showing the relationship between the rotation speed of a rotation speed detection sensor in FIG. 1, the absorption amount of a hydraulic motor, the discharge amount of a hydraulic pump, and time.
１ アスファルトフィニッシャの走行駆動制御
装置 ２ 油圧ポンプ ３ 油圧モータ ４ 減速装置 ５ 走行車輪 ６ 回転数検出センサ ７ コントローラ １０ 走行設定ダイヤル １１ モード切替えスイッチDESCRIPTION OF SYMBOLS 1 Asphalt finisher traveling drive control device 2 Hydraulic pump 3 Hydraulic motor 4 Reduction gear 5 Traveling wheel 6 Revolution detection sensor 7 Controller 10 Travel setting dial 11 Mode switch
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2D052 AA03 AC01 AD05 AD11 AD17 BD03 BD11 CA03 3D044 AA01 AA21 AA45 AB07 AC39 AC41 AD01 AE19 3H089 AA27 AA32 AA86 CC09 CC12 DA03 EE36 FF04 FF12 GG02 JJ01 3J053 AA01 AB02 AB33 DA06 EA04 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D052 AA03 AC01 AD05 AD11 AD17 BD03 BD11 CA03 3D044 AA01 AA21 AA45 AB07 AC39 AC41 AD01 AE19 3H089 AA27 AA32 AA86 CC09 CC12 DA03 EE36 FF04 FF12 GG02 JJ01 AB02A DA03
Claims (3)
圧モータにより減速装置を介して走行車輪を回転駆動す
るように構成されたアスファルトフィニッシャの走行駆
動装置に於て、前記油圧モータに回転数検出センサを設
けると共に、該回転数検出センサをコントローラに接続
し、且つ、該コントローラを前記油圧ポンプ及び前記油
圧モータの制御手段に接続し、更に、該コントローラに
前記油圧ポンプの吐出量を制御して走行速度を可変する
走行設定ダイヤルと前記油圧モータの吸収量を制御して
「走行モード」と「施工モード」の設定切替えを行うモ
ード切替えスイッチとを接続したことを特徴とするアス
ファルトフィニッシャの走行駆動制御装置。1. A traveling drive device for an asphalt finisher, wherein a hydraulic motor is connected to a hydraulic pump, and the traveling wheels are rotationally driven via a reduction gear by the hydraulic motor. A detection sensor is provided, and the rotation speed detection sensor is connected to a controller, and the controller is connected to control means for the hydraulic pump and the hydraulic motor. Further, the controller controls the discharge amount of the hydraulic pump. A traveling setting dial for varying the traveling speed and a mode changeover switch for switching between a “traveling mode” and a “construction mode” by controlling the absorption amount of the hydraulic motor, and driving the asphalt finisher. Drive control device.
圧モータにより減速装置を介して走行車輪を回転駆動す
るように構成されたアスファルトフィニッシャの走行駆
動装置に於て、前記油圧モータに回転数検出センサを設
けると共に、該回転数検出センサをコントローラに接続
し、且つ、該コントローラを前記油圧ポンプ及び前記油
圧モータの制御手段に接続し、更に、該コントローラに
前記油圧ポンプの吐出量を制御して走行速度を可変する
走行設定ダイヤルと前記油圧モータの吸収量を制御して
「走行モード」と「施工モード」の設定切替えを行うモ
ード切替えスイッチとを接続し、アスファルトフィニッ
シャの走行モード起動時は前記コントローラにより、前
記油圧モータの吸収量を大とし、且つ、前記油圧ポンプ
の吐出量を小近傍に設定して該アスファルトフィニッシ
ャを起動し、そして、該起動後にオペレータが前記走行
設定ダイヤルを操作して前記油圧ポンプの吐出量を大と
し、これによってアスファルトフィニッシャが加速さ
れ、前記回転数検出センサの回転数が所定回転数になっ
た時は、前記コントローラによって前記油圧モータの吸
収量を小とし、且つ、前記油圧ポンプの吐出量を小とし
てアスファルトフィニッシャを定速走行させるように制
御することを特徴とするアスファルトフィニッシャの走
行駆動制御方法。2. A traveling drive device of an asphalt finisher, wherein a hydraulic motor is connected to a hydraulic pump, and the traveling wheel is driven to rotate by a reduction gear by the hydraulic motor. A detection sensor is provided, and the rotation speed detection sensor is connected to a controller, and the controller is connected to control means for the hydraulic pump and the hydraulic motor. Further, the controller controls the discharge amount of the hydraulic pump. A running setting dial that varies the running speed and a mode switch that controls the absorption amount of the hydraulic motor to switch the setting between `` running mode '' and `` construction mode '' are connected, and when the running mode of the asphalt finisher is started, By the controller, the absorption amount of the hydraulic motor is increased, and the discharge amount of the hydraulic pump is set to a small value. After setting, the asphalt finisher is activated, and after the activation, the operator operates the travel setting dial to increase the discharge amount of the hydraulic pump, thereby accelerating the asphalt finisher and rotating the rotation speed detection sensor. When the number reaches a predetermined number of revolutions, the controller controls the absorption amount of the hydraulic motor to be small, and controls the asphalt finisher to run at a constant speed by reducing the discharge amount of the hydraulic pump. Drive control method for asphalt finisher.
圧モータにより減速装置を介して走行車輪を回転駆動す
るように構成されたアスファルトフィニッシャの走行駆
動装置に於て、前記油圧モータに回転数検出センサを設
けると共に、該回転数検出センサをコントローラに接続
し、且つ、該コントローラを前記油圧ポンプ及び前記油
圧モータの制御手段に接続し、更に、該コントローラに
前記油圧ポンプの吐出量を制御して走行速度を可変する
走行設定ダイヤルと前記油圧モータの吸収量を制御して
「走行モード」と「施工モード」の設定切替えを行うモ
ード切替えスイッチとを接続し、アスファルトフィニッ
シャが走行モードで定速走行時に、走行負荷の増大によ
りアスファルトフィニッシャが低速になり、前記回転数
検出センサの回転数が所定回転数未満になった時、前記
コントローラにより、前記油圧モータの吸収量を大と
し、且つ、前記油圧ポンプの吐出量を大としてアスファ
ルトフィニッシャを増速し、これによって前記回転数検
出センサの回転数が所定回転数になった時は、前記油圧
モータの吸収量を小とし、且つ、前記油圧ポンプの吐出
量を小としてアスファルトフィニッシャを定速走行させ
るように制御することを特徴とするアスファルトフィニ
ッシャの走行駆動制御方法。3. A traveling drive device for an asphalt finisher, wherein a hydraulic motor is connected to a hydraulic pump and the traveling wheel is driven to rotate via a reduction gear by the hydraulic motor. A detection sensor is provided, and the rotation speed detection sensor is connected to a controller, and the controller is connected to control means for the hydraulic pump and the hydraulic motor. Further, the controller controls the discharge amount of the hydraulic pump. A running setting dial that varies the running speed and a mode switch that controls the setting of “running mode” and “construction mode” by controlling the absorption amount of the hydraulic motor are connected, and the asphalt finisher operates at a constant speed in the running mode. During traveling, the asphalt finisher slows down due to the increase in traveling load, and the rotational speed of the rotational speed detection sensor is reduced. When the rotation speed is less than a predetermined rotation speed, the controller increases the absorption amount of the hydraulic motor, and increases the discharge amount of the hydraulic pump to increase the speed of the asphalt finisher. When the rotation speed reaches a predetermined rotation speed, the absorption amount of the hydraulic motor is reduced, and the discharge amount of the hydraulic pump is reduced to control the asphalt finisher to run at a constant speed. A drive control method for the finisher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000236414A JP3648137B2 (en) | 2000-08-04 | 2000-08-04 | Driving control method for asphalt finisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000236414A JP3648137B2 (en) | 2000-08-04 | 2000-08-04 | Driving control method for asphalt finisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002048236A true JP2002048236A (en) | 2002-02-15 |
| JP3648137B2 JP3648137B2 (en) | 2005-05-18 |
Family
ID=18728459
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000236414A Expired - Fee Related JP3648137B2 (en) | 2000-08-04 | 2000-08-04 | Driving control method for asphalt finisher |
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| Country | Link |
|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011149496A (en) * | 2010-01-21 | 2011-08-04 | Kubota Corp | Vehicle speed control structure of work vehicle |
| JP2012017649A (en) * | 2010-07-09 | 2012-01-26 | Joseph Voegele Ag | Construction machinery with operation mode control section |
| US8447479B2 (en) | 2010-01-21 | 2013-05-21 | Kubota Corporation | Speed change system for work vehicle |
| JP2019124112A (en) * | 2017-12-13 | 2019-07-25 | ヨゼフ フェゲーレ アーゲー | Road finisher with liftable chassis |
| JP2019143806A (en) * | 2015-09-08 | 2019-08-29 | 株式会社クボタ | Hydraulic system of work machine |
| CN115217017A (en) * | 2022-07-18 | 2022-10-21 | 潍柴动力股份有限公司 | Speed control method, device and equipment for road roller and storage medium |
-
2000
- 2000-08-04 JP JP2000236414A patent/JP3648137B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011149496A (en) * | 2010-01-21 | 2011-08-04 | Kubota Corp | Vehicle speed control structure of work vehicle |
| US8447479B2 (en) | 2010-01-21 | 2013-05-21 | Kubota Corporation | Speed change system for work vehicle |
| US8798878B2 (en) | 2010-01-21 | 2014-08-05 | Kubota Corporation | Speed change system for work vehicle |
| US9283951B2 (en) | 2010-01-21 | 2016-03-15 | Kubota Corporation | Speed change system for work vehicle |
| JP2012017649A (en) * | 2010-07-09 | 2012-01-26 | Joseph Voegele Ag | Construction machinery with operation mode control section |
| US8843280B2 (en) | 2010-07-09 | 2014-09-23 | Joseph Vogele Ag | Construction machine with operating mode control |
| JP2019143806A (en) * | 2015-09-08 | 2019-08-29 | 株式会社クボタ | Hydraulic system of work machine |
| JP2019124112A (en) * | 2017-12-13 | 2019-07-25 | ヨゼフ フェゲーレ アーゲー | Road finisher with liftable chassis |
| US10640931B2 (en) | 2017-12-13 | 2020-05-05 | Joseph Voegele Ag | Road finisher with liftable chassis |
| CN115217017A (en) * | 2022-07-18 | 2022-10-21 | 潍柴动力股份有限公司 | Speed control method, device and equipment for road roller and storage medium |
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| Publication number | Publication date |
|---|---|
| JP3648137B2 (en) | 2005-05-18 |
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