JP3648137B2 - Driving control method for asphalt finisher - Google Patents

Driving control method for asphalt finisher Download PDF

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Publication number
JP3648137B2
JP3648137B2 JP2000236414A JP2000236414A JP3648137B2 JP 3648137 B2 JP3648137 B2 JP 3648137B2 JP 2000236414 A JP2000236414 A JP 2000236414A JP 2000236414 A JP2000236414 A JP 2000236414A JP 3648137 B2 JP3648137 B2 JP 3648137B2
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Prior art keywords
hydraulic motor
asphalt finisher
rotational speed
hydraulic pump
controller
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JP2002048236A (en
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信行 石井
寿保 美濃
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Sumitomo SHI Construction Machinery Co Ltd
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Sumitomo SHI Construction Machinery Co Ltd
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Description

【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方法に関するものである。
【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。
【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。
【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、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、
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。
【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。
【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。
【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。
【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。
【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。
【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。
【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。
【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。
【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。
【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。
【００１６】
【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。
【００１７】
更に、請求項２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、スムーズに定速走行に移行することができる。
【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。
【図面の簡単な説明】
【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。
【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。
【符号の説明】
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[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a driving control method for an asphalt finisher, and in particular, in a wheel-type asphalt finisher, it prevents engine stall or inability to run smoothly when starting running, running uphill or running over a step, and the like. The present invention relates to a traveling drive control method for an asphalt finisher that can perform proper driving and traveling.
[0002]
[Prior art and problems to be solved by the invention]
Conventional wheel type asphalt finishers need to move quickly between sites, and on the other hand, it is necessary to secure sufficient traction force during construction. Was very different. Accordingly, it is extremely difficult to secure the driving force when starting to drive, when going uphill, or when traveling over a step during movement with a small reduction ratio, and problems such as engine stall and inability to travel occur, and smooth traveling cannot be performed.
[0003]
Therefore, in the asphalt finisher, a technical problem to be solved arises in order to prevent engine stall or inability to run when starting running, going uphill or running over a step, and to enable smooth driving and running. The present invention aims to solve this problem.
[0004]
[Means for Solving the Problems]
The present invention has been proposed in order to achieve the above-mentioned object, and a traveling of an asphalt finisher configured to connect a hydraulic motor to a hydraulic pump and rotationally drive a traveling wheel by the hydraulic motor via a speed reducer. In the drive device, the hydraulic motor is provided with a rotational speed detection sensor, the rotational speed detection sensor is connected to a controller, and the controller is connected to the hydraulic pump and the control means of the hydraulic motor, A travel setting dial for controlling the discharge amount of the hydraulic pump to change the travel speed to the controller, and a mode switching switch for controlling the absorption amount of the hydraulic motor to switch the setting between “travel mode” and “construction mode”; connect, running mode startup asphalt finisher by the controller, the absorption amount of the hydraulic motor Daito And, the discharge amount of the hydraulic pump is set to a small vicinity and the asphalt finisher is started, and after the start, the operator operates the travel setting dial to increase the discharge amount of the hydraulic pump, thereby When the asphalt finisher is accelerated and the rotation speed of the rotation speed detection sensor reaches a predetermined rotation speed, the controller reduces the absorption amount of the hydraulic motor and decreases the discharge amount of the hydraulic pump to reduce the asphalt finisher. Driving control method of asphalt finisher that controls the vehicle to run at a constant speed ,
And a traveling drive device for an asphalt finisher configured to connect a hydraulic motor to a hydraulic pump and to rotationally drive a traveling wheel by the hydraulic motor via a speed reducer. The rotational speed detection sensor is connected to the controller, the controller is connected to the control means of the hydraulic pump and the hydraulic motor, and the controller further controls the discharge amount of the hydraulic pump to thereby increase the traveling speed. Connect the travel setting dial that changes the amount of absorption of the hydraulic motor and the mode changeover switch that switches the setting of `` travel mode '' and `` construction mode '', and the asphalt finisher is traveling at constant speed in the travel mode , Asphalt finisher slows down due to an increase in travel load, and the rotation speed of the rotation speed detection sensor is predetermined. When it becomes less than the rolling speed, by the controller, the hydraulic motor absorption large cities, and the Hayashi increasing the asphalt finisher discharge amount of the hydraulic pump as a large, whereby the rotational speed of said rotational speed detecting sensor An asphalt finisher driving control method for controlling the asphalt finisher to run at a constant speed with a small absorption amount of the hydraulic motor and a small discharge amount of the hydraulic pump. It is to provide.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. In FIG. 1, reference numeral 1 denotes an asphalt finisher travel drive control device. The asphalt finisher travel drive control device 1 has a hydraulic motor 3 connected to a hydraulic pump 2 and a speed reducer 4 connected to the hydraulic motor 3. Further, the traveling wheels 5 and 5 are connected to each other, and a rotation speed detection sensor 6 is provided in the hydraulic motor 3. The rotation speed detection sensor 6 includes a microcomputer, an A / D converter, and a D / A. A controller 7 on which a converter and a memory (not shown) are mounted is connected, and tilt regulators 8 and 9 that are control means for the hydraulic pump 2 and the hydraulic motor 3 are connected to the controller 7. The controller 7 controls the discharge amount of the hydraulic pump 2 to change the traveling speed and controls the absorption amount of the hydraulic motor 3 to set the “travel mode” and “construction mode”. A mode switch 11 for switching is connected.
[0006]
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, and the travel setting dial 10 is operated to the low speed side. At this time, a signal is sent to the tilt regulator 8 so as to make a small tilt, and the discharge amount of the hydraulic pump 2 becomes small. On the other hand, 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 has a large discharge amount.
[0007]
Further, the mode changeover switch 11 is configured to send a command signal to the tilt regulator 9 of the hydraulic motor 3 through the controller 7 by an operator's operation, and the mode changeover switch 11 is switched to the “traveling mode”. When this occurs, a signal is sent to the tilt regulator 9 so as to make a small tilt, and the hydraulic motor 3 has a small amount of absorption. On the contrary, when the mode changeover switch 11 is switched to the “construction mode”, a signal is sent to the tilting regulator 9 so as to make a large tilt, and the hydraulic motor 3 has a large absorption amount.
[0008]
Thus, as shown in FIGS. 1 and 2, the asphalt finisher is started to run while the mode changeover switch 10 is set to the “traveling mode” and the absorption amount of the hydraulic motor 3 is set to a small value. When the controller 7 controls, the tilt angle of the tilt regulator 8 is controlled to be close to a small value, the discharge amount of the hydraulic pump 2 is set to a small value, and the tilt angle of the tilt regulator 9 is set. Is controlled to the large side, and the asphalt finisher is started by increasing the absorption amount of the hydraulic motor 3.
[0009]
When the operator operates the travel setting dial 10 to increase the discharge amount of the hydraulic pump 2 after startup, the asphalt finisher speeds up and the rotational speed of the rotational speed detection sensor 6 increases. When the rotational speed reaches the predetermined rotational speed N 1 , the amount of absorption of the hydraulic motor 3 is reduced through the tilt regulator 9 under the control of the controller 7, and the hydraulic pressure is transmitted through the tilt regulator 8. The asphalt finisher is shifted to constant speed running with a small discharge amount of the pump 2. At this time, the rotational speed of the rotational speed detection sensor 6 is N 3 .
[0010]
Thus, it is possible to ensure a large driving force at the start of the running mode, smoothly start up without causing engine stall or inability to run, and smoothly shift to constant speed after starting up. Can do.
[0011]
The mode changeover switch 11 is set to the “traveling mode”, the absorption amount of the hydraulic motor 3 is set to be small, and the discharge amount of the hydraulic pump 2 is set to be small. The rotational speed of the rotational speed detection sensor 6 becomes N 3 , and when the asphalt finisher travels at a constant speed, the traveling load increases due to uphill or oversteps, and the asphalt finisher becomes low speed, and the rotational speed detection sensor 6 rotates. When the number becomes less than the predetermined rotation speed N 2, the amount of absorption of the hydraulic motor 3 is increased through the tilt regulator 9 and the tilt regulator 8 is controlled by the control of the controller 7. wherein the discharge amount of the hydraulic pump 2 Hayashi increasing the asphalt finisher as large, when a result, the rotational speed of said rotational speed detecting sensor 6 reaches a predetermined rotational speed N 2, the oil Absorption smaller towns of the motor 3, and the asphalt finisher is again constant speed travel the discharge rate of the hydraulic pump 2 as small. At this time, the rotational speed of the rotational speed detection sensor 6 is N 3 .
[0012]
Thus, when the asphalt finisher is running at a constant speed in the running mode, even if the asphalt finisher becomes slow due to an increase in running load such as uphill or oversteps, a large driving force is secured to prevent engine stall or running It is possible to smoothly increase the speed without generating, and smoothly shift to constant speed after the speed increase.
[0013]
In the state where the mode change 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 the operator can set the travel setting dial 10. Is increased to increase the discharge amount of the hydraulic pump 2, the asphalt finisher speeds up. Conversely, if the operator operates the travel setting dial 10 to decrease the discharge amount of the hydraulic pump 2. The asphalt finisher decelerates, and at this time, in particular, the correction control by the controller 7 is not performed.
[0014]
In addition, 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 one.
[0016]
【The invention's effect】
As described in detail in the above embodiment, the invention according to claim 1 increases the absorption amount of the hydraulic motor and increases the discharge amount of the hydraulic pump by the controller when the asphalt finisher travel mode is activated. The asphalt finisher is activated by setting it to a small vicinity, 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 the rotational speed detection sensor When the number of revolutions reaches a predetermined number of revolutions, the controller controls the asphalt finisher to run at a constant speed by reducing the absorption amount of the hydraulic motor and reducing the discharge amount of the hydraulic pump. Ensuring a large driving force at startup to ensure smooth startup and smooth transition to constant speed after startup. Can.
[0017]
Further, when the constant-speed running in invention the asphalt finisher of claim 2, wherein the running mode, the asphalt finisher by the increase in the traveling load becomes slow, the rotation speed of the rotation speed detection sensor is 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, whereby the rotation speed of the rotation speed detection sensor reaches a predetermined rotation speed. Controls the asphalt finisher to run at a constant speed with a small absorption amount of the hydraulic motor and a small discharge amount of the hydraulic pump. Even when the asphalt finisher slows down due to an increase in the driving load of the vehicle, a large driving force can be ensured to increase the speed smoothly, and , It is possible to smoothly shift to the constant speed travel.
[0018]
Thus, in the asphalt finisher according to the present invention, it is possible to prevent engine stalls and inability to run when starting running, running uphill or running over a step, and to smoothly drive and run. It is an invention that has a great effect.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an asphalt finisher travel drive control apparatus according to an embodiment of the present invention.
FIG. 2 is a graph showing the relationship between the rotation speed of the rotation speed detection sensor of FIG. 1, the absorption amount of the hydraulic motor, the discharge amount of the hydraulic pump, and time;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Asphalt finisher travel drive control device 2 Hydraulic pump 3 Hydraulic motor 4 Deceleration device 5 Traveling wheel 6 Rotational speed detection sensor 7 Controller 10 Travel setting dial 11 Mode switch

Claims (2)

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。In an asphalt finisher travel drive device configured to connect a hydraulic motor to a hydraulic pump, and to rotate and drive the traveling wheels by the hydraulic motor via a speed reducer, the hydraulic motor is provided with a rotational speed detection sensor. The rotational speed detection sensor is connected to a controller, the controller is connected to the hydraulic pump and the hydraulic motor control means, and the controller controls the discharge amount of the hydraulic pump to vary the traveling speed. A travel setting dial for controlling the absorption amount of the hydraulic motor and a mode changeover switch for switching the setting between the “travel mode” and the “construction mode”, and when the asphalt finisher travel mode is started, the controller The absorption amount of the hydraulic motor is increased, and the discharge amount of the hydraulic pump is set in the vicinity of a small amount to After starting, the operator operates the travel setting dial to increase the discharge amount of the hydraulic pump, thereby accelerating the asphalt finisher, and the rotational speed of the rotational speed detection sensor is set to a predetermined rotational speed. The asphalt finisher is controlled so that the absorption amount of the hydraulic motor is reduced by the controller and the discharge amount of the hydraulic pump is reduced and the asphalt finisher is driven at a constant speed by the controller . Travel drive control method . 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。In an asphalt finisher travel drive device configured to connect a hydraulic motor to a hydraulic pump, and to rotate and drive the traveling wheels by the hydraulic motor via a speed reducer, the hydraulic motor is provided with a rotational speed detection sensor. The rotational speed detection sensor is connected to a controller, the controller is connected to the hydraulic pump and the hydraulic motor control means, and the controller controls the discharge amount of the hydraulic pump to vary the traveling speed. travel set by controlling the absorption of the hydraulic motor and dial to connect the setting switching mode changeover switch performs the "running mode" and "construction mode" to, during constant-speed running in the asphalt finisher is traveling mode, the traveling load Increases the speed of the asphalt finisher, and the rotational speed of the rotational speed detection sensor is a predetermined rotational speed. When it becomes full, by the controller, the hydraulic motor absorption large cities, and the increasing asphalt finisher discharge amount of the hydraulic pump as a large Hayashi, whereby the rotational speed of said rotational speed detecting sensor a predetermined Asphalt finisher driving is characterized in that when the rotation speed is reached, the amount of absorption of the hydraulic motor is reduced and the discharge amount of the hydraulic pump is reduced so that the asphalt finisher runs at a constant speed. Control method.
JP2000236414A 2000-08-04 2000-08-04 Driving control method for asphalt finisher Expired - Fee Related JP3648137B2 (en)

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JP5406744B2 (en) * 2010-01-21 2014-02-05 株式会社クボタ Speed control structure of work vehicle
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PL2405057T3 (en) * 2010-07-09 2018-11-30 Joseph Vögele AG Construction machine with operation mode management
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