JP2012175945A - Working vehicle - Google Patents

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JP2012175945A
JP2012175945A JP2011041465A JP2011041465A JP2012175945A JP 2012175945 A JP2012175945 A JP 2012175945A JP 2011041465 A JP2011041465 A JP 2011041465A JP 2011041465 A JP2011041465 A JP 2011041465A JP 2012175945 A JP2012175945 A JP 2012175945A
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engine
pto
work vehicle
detected
driving
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JP5776221B2 (en
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Akihiko Oka
昭彦 岡
Harumitsu Toki
治光 十亀
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To properly start/stop an engine in a working vehicle which runs with an electric motor, in which a working machine is driven with an engine.SOLUTION: The working vehicle has a configuration for driving running wheels (1, 2) with a driving motor for running (14), and driving the working machine (8) with the engine (3), and includes a controller (29) for controlling to start the engine (3) when a PTO clutch (27) is turned on by a PTO operation unit (19), and controlling to stop the engine (3) when the PTO clutch (27) is turned off by the PTO operation unit (19). The controller determines whether or not charging is required based on the state of a battery for running (13), and controls not to charge when unnecessity of charge of the battery for running (13) is determined even when the engine (3) is driven.

Description

本発明は芝刈機等のＰＴＯで作業機を駆動する作業車両に関する。   The present invention relates to a work vehicle that drives a work machine with a PTO such as a lawn mower.

特許文献１にはエンジンでＰＴＯ及び後輪を駆動し、走行用のバッテリで駆動する電動モータで前輪を駆動し、エンジン３の回転動力で走行用のバッテリを充電する作業車両（芝刈機）について記載されている。   Patent Document 1 discloses a work vehicle (lawn mower) in which a PTO and a rear wheel are driven by an engine, a front wheel is driven by an electric motor that is driven by a traveling battery, and a traveling battery is charged by the rotational power of the engine 3. Are listed.

特開２００４−３５０４７５号公報JP 2004-350475 A

特許文献１の作業車両では基本的にエンジンで走行・作業するものであり、走行用駆動モータは補助的なものである。本発明は、電動モータで走行し、エンジンで作業機を駆動する作業車両において、エンジンの始動・停止を適正に行うことを課題とする。   The working vehicle of Patent Document 1 basically runs and works with an engine, and the driving motor for driving is auxiliary. An object of the present invention is to appropriately start and stop an engine in a work vehicle that travels with an electric motor and drives a work machine with the engine.

この発明は、かかる技術的課題を解決するために次のような技術的手段を講ずる。すなわち、請求項１記載の発明は、走行輪（１，２）と作業機（８）とを備えた作業車両において、走行輪（１，２）を走行用駆動モータ（１４）で駆動すると共に、作業機（８）をエンジン（３）で駆動する構成とし、ＰＴＯ操作手段（１９）でＰＴＯクラッチ（２７）を入りにしたときにエンジン（３）を始動する制御を行なうと共に、ＰＴＯ操作手段（１９）でＰＴＯクラッチ（２７）を切りにするとエンジン（３）を停止する制御を行なう制御手段（２９）を設けたことを特徴とする作業車両とする。   In order to solve this technical problem, the present invention takes the following technical means. That is, according to the first aspect of the present invention, in the work vehicle including the traveling wheels (1, 2) and the work implement (8), the traveling wheels (1, 2) are driven by the traveling drive motor (14). The working machine (8) is driven by the engine (3), and the engine (3) is controlled to start when the PTO clutch (27) is engaged by the PTO operating means (19), and the PTO operating means When the PTO clutch (27) is disengaged in (19), the working vehicle is provided with a control means (29) for controlling to stop the engine (3).

請求項２記載の発明は、走行用駆動モータ（１４）は走行用バッテリ（１３）の電力で駆動する構成とし、走行用バッテリ（１３）はエンジン（３）の動力にて充電可能に構成し、制御手段は走行用バッテリ（１３）の状態から充電の要・不要を判定し、走行用バッテリ（１３）の充電の不要を判定するとエンジン（３）の駆動中も充電を行なわないように制御することを特徴とする請求項１記載の作業車両とする。   According to the second aspect of the present invention, the traveling drive motor (14) is driven by the electric power of the traveling battery (13), and the traveling battery (13) is configured to be rechargeable by the power of the engine (3). The control means determines whether or not charging is necessary from the state of the traveling battery (13), and if it is determined that charging of the traveling battery (13) is not necessary, control is performed so that charging is not performed even while the engine (3) is being driven. The work vehicle according to claim 1, wherein:

請求項３記載の発明においては、作業機は草を刈るモーア（８）であり、制御手段（２９）はＰＴＯクラッチ（２７）が入り状態を検出しているときに、走行輪（１，２）の停止状態が設定時間継続することを検出すると、エンジン（３）を停止する制御を行なうことを特徴とする請求項１または請求項２記載の作業車両とする。   In the invention according to claim 3, the working machine is a mower (8) that cuts grass, and the control means (29) detects the engaged state when the PTO clutch (27) is detected. If the stop state of () continues for a set time, the work vehicle is controlled to stop the engine (3).

請求項４記載の発明においては、作業機は草を刈るモーア（８）であり、モーア（８）で刈った草を集草容器（１１）に収容する構成とし、制御手段はＰＴＯクラッチ（２７）が入り状態を検出しているときに、集草容器（１１）の満量センサ（２４）が満量を検出したときにエンジン（３）を停止する制御を行なうことを特徴とする請求項１から請求項３いずれか記載の作業車両とする。   In the invention according to claim 4, the working machine is a mower (8) that cuts grass, and the grass cut by the mower (8) is stored in the grass collecting container (11), and the control means is a PTO clutch (27 The engine (3) is controlled to stop when the full sensor (24) of the grass collection container (11) detects the full quantity when the state is detected. A working vehicle according to any one of claims 1 to 3.

請求項５記載の発明においては、走行輪（１，２）の停止状態が設定時間継続することを検出することによるエンジン（３）の停止後、走行輪の走行を検出しても、ＰＴＯ操作手段（１９）によるＰＴＯクラッチ（２７）入りを検出するまでは、エンジン（３）の駆動の再開を規制することを特徴とする請求項３記載の作業車両とする。   In the invention according to claim 5, even if the traveling of the traveling wheel is detected after the engine (3) is stopped by detecting that the stopped state of the traveling wheels (1, 2) continues for a set time, the PTO operation is performed. The work vehicle according to claim 3, wherein resumption of driving of the engine (3) is restricted until it is detected that the PTO clutch (27) is engaged by the means (19).

請求項６記載の発明においては、満量センサ（２４）の満量検出によるエンジン（３）停止後、集草容器（１１）の草を排出して満量センサ（２４）による満量を非検出の状態になっても、ＰＴＯ操作手段（１９）によるＰＴＯクラッチ（２７）入りを検出まではエンジン（３）の駆動の再開を規制することを特徴とする請求項４記載の作業車両とする。   According to the sixth aspect of the present invention, after the engine (3) is stopped by detecting the full capacity of the full sensor (24), the grass in the grass collecting container (11) is discharged and the full capacity of the full sensor (24) is reduced. 5. The work vehicle according to claim 4, wherein even if the detection state is reached, the restart of the drive of the engine (3) is restricted until it is detected that the PTO operation means (19) has entered the PTO clutch (27). .

請求項１記載の発明においては、走行時の騒音を低減すると共に、作業時にエンジンによる駆動を行なうため円滑な作業を行なえる。
請求項２記載の発明においては、必要なときだけ走行用バッテリへの充電を行なえるため、効率的な充電を行なえる。 According to the first aspect of the present invention, noise during running can be reduced, and the engine can be driven during work, so that smooth work can be performed.
In the invention according to claim 2, since the battery for traveling can be charged only when necessary, efficient charging can be performed.

請求項３記載の発明においては、走行車体が設定時間以上停止しているときにはモーアを駆動させる意味がないため、エンジンを停止させるものである。無用にエンジンを駆動させずに済む。   In the third aspect of the invention, the engine is stopped because there is no point in driving the mower when the traveling vehicle body is stopped for a set time or longer. It is not necessary to drive the engine unnecessarily.

請求項４記載の発明においては、集草容器が満量のときにさらなる刈草が供給されるのを防止し、かつ、運転者に満杯であることを気づかせ易くすることが出来る。
請求項５記載の発明においては、走行車体の走行を再開しても、運転者が意図しない状態でのエンジンの駆動の再開を防止できるため、安全である。 In the invention according to claim 4, when the grass collecting container is full, it is possible to prevent further grass cutting from being supplied and to make the driver easily aware that the grass is full.
According to the fifth aspect of the present invention, even if the traveling of the traveling vehicle body is resumed, the restart of the engine drive in a state not intended by the driver can be prevented, which is safe.

請求項６記載の発明においては、集草容器内の草を排出しても、運転者が意図しない状態でのエンジンの駆動の再開を防止できるため、安全である。   In the invention described in claim 6, even if the grass in the grass collection container is discharged, it is possible to prevent the engine from restarting in a state not intended by the driver, so that it is safe.

作業車両の側面図Side view of work vehicle 作業車両の平面図Top view of work vehicle 伝動及び制御システム図Transmission and control system diagram 制御フローチャートControl flowchart 制御フローチャートControl flowchart 制御フローチャートControl flowchart 制御フローチャートControl flowchart 制御フローチャートControl flowchart

本発明の実施の形態を乗用型の芝刈機に基づいて説明する。
車体には前輪１と後輪２と、前側にエンジン３等を内装するボンネット４と、ボンネット４の後方でかつステップ７の上方にはステアリングハンドル５を備え、その後方には運転席６を設けている。 An embodiment of the present invention will be described based on a riding lawn mower.
The vehicle body includes a front wheel 1 and a rear wheel 2, a bonnet 4 that houses an engine 3 and the like on the front side, a steering handle 5 behind the bonnet 4 and above the step 7, and a driver's seat 6 is provided behind the steering wheel 5. ing.

前輪１と後輪２の間でステップ７の下方には草を刈るモーア８を設ける。モーア８はモーアリンク機構９により上下方向に昇降可能とし、刈った芝を後部に排出するものである。モーア８で刈った芝は後輪２の間を貫通する案内シュート１０を通過し、車体後部に備える集草容器１１に収容する構成である。   A mower 8 for mowing grass is provided below the step 7 between the front wheel 1 and the rear wheel 2. The mower 8 can be moved up and down by the mower link mechanism 9 and discharges the cut grass to the rear. The grass cut by the mower 8 passes through the guide chute 10 penetrating between the rear wheels 2 and is accommodated in the grass collection container 11 provided at the rear of the vehicle body.

次に芝刈機の制御システムについて説明する。
本実施の形態の芝刈機はエンジン３でモーア８を駆動すると共に、バッテリを充電する構成で、該バッテリの電力により駆動モータで走行輪（後輪）を駆動するものである。 Next, a lawn mower control system will be described.
The lawn mower according to the present embodiment is configured to drive the mower 8 by the engine 3 and to charge the battery, and to drive the traveling wheels (rear wheels) by the drive motor by the electric power of the battery.

さらに、詳細を説明すると、エンジン３の動力でオルタネータ１２を駆動して走行用バッテリ１３を充電する。そして走行用バッテリ１３の電力により走行用駆動モータ１４を駆動するが、インバータ１５で後輪駆動モータの回転数を適宜調節して車速を調節する。詳述はしないが走行用駆動モータ１４は後輪それぞれに設けるタイプでも良いし、１個のモータで行なうようにしても良い。   More specifically, the alternator 12 is driven by the power of the engine 3 to charge the traveling battery 13. The travel drive motor 14 is driven by the power of the travel battery 13, and the vehicle speed is adjusted by appropriately adjusting the rotational speed of the rear wheel drive motor by the inverter 15. Although not described in detail, the traveling drive motor 14 may be a type provided on each rear wheel, or may be performed by a single motor.

走行用バッテリ１３の電力はＤＣコンバータ２５を介してコントローラ用バッテリ２６にも供給される。
コントローラ２９は電源スイッチ１８やＰＴＯスイッチ１９の操作情報や、車速を変更する増速ペダル２２の操作情報や、走行用バッテリ１３の電圧値や残量の情報に基づき、オルタネータ１２の始動・停止を切替える充電用クラッチ（電磁クラッチ）１６の入り切り、インバータ１５の回転数、モーアの駆動・停止を切替えるＰＴＯクラッチ２７の入り切り等を制御する。なお、走行用駆動モータ１４の回生による充電機能を備えても良い。他にも運転操作に基づく走行用駆動モータ１４の回転方向の切り替え（前進・後進の切替え）等を制御する。 The electric power of the traveling battery 13 is also supplied to the controller battery 26 via the DC converter 25.
The controller 29 starts and stops the alternator 12 based on the operation information of the power switch 18 and the PTO switch 19, the operation information of the speed increasing pedal 22 that changes the vehicle speed, and the voltage value and remaining amount information of the traveling battery 13. It controls on / off of the charging clutch (electromagnetic clutch) 16 to be switched, rotation speed of the inverter 15, on / off of the PTO clutch 27 for switching mower driving / stopping, and the like. In addition, you may provide the charge function by regeneration of the drive motor 14 for driving | running | working. In addition, switching of the rotational direction of the traveling drive motor 14 based on the driving operation (switching between forward and reverse) is controlled.

ステアリングハンドル５の周辺には操作パネル１７を設け、電源スイッチ１８とＰＴＯスイッチ１９と表示パネル２０とエンジン自動始動スイッチ２１を備えている。
次に、本実施の形態の各種制御について以下説明する。 An operation panel 17 is provided around the steering handle 5, and includes a power switch 18, a PTO switch 19, a display panel 20, and an engine automatic start switch 21.
Next, various controls of the present embodiment will be described below.

まず、電源をＯＮにしたときについて説明する。
電源スイッチ１８をＯＮにすると走行用バッテリ１３の残量を測定又は算出し、走行可能距離を演算して表示する。走行用バッテリ１３の残量は例えば直近の満充電時からの積算使用電力量から演算される。このとき、走行可能距離が設定距離以下（例えば２ｋｍ以下）の場合には走行不能を表示し、走行可能距離が設定距離以上（例えば２ｋｍ以上）の場合には走行可能を表示しても良い（図４参照）。 First, the case where the power is turned on will be described.
When the power switch 18 is turned on, the remaining amount of the travel battery 13 is measured or calculated, and the travelable distance is calculated and displayed. The remaining amount of the traveling battery 13 is calculated from, for example, the accumulated power consumption since the last full charge. At this time, when the travelable distance is equal to or less than the set distance (for example, 2 km or less), the travel impossibility may be displayed, and when the travelable distance is equal to or greater than the set distance (for example, 2 km or greater) (See FIG. 4).

電源スイッチ１８のＯＮ時に走行用バッテリ１３の残量が設定量以下の場合には、エンジン３が自動的に駆動を開始して走行用バッテリ１３を充電することができる。一方、前記走行用バッテリ１３残量が設定量以上の場合にはエンジン３の駆動を開始しない。なお、このとき、後述のＰＴＯクラッチ２７は切り状態のままとしている。   If the remaining amount of the traveling battery 13 is equal to or less than the set amount when the power switch 18 is turned on, the engine 3 can automatically start to charge the traveling battery 13. On the other hand, the driving of the engine 3 is not started when the remaining amount of the traveling battery 13 is equal to or larger than the set amount. At this time, a PTO clutch 27 described later remains in a disengaged state.

走行用バッテリ１３の残量が設定量以下の場合にエンジン３を自動的に駆動を開始する制御は、エンジン自動始動スイッチ２１の入り操作で予め設定することができる。すなわち、エンジン始動スイッチ２１を切にしているときには、電源スイッチ１８ＯＮ時に走行用バッテリ１３残量が設定量以下の場合でも、自動的にエンジン３の駆動を開始しないことで、運転者が意図しない場合のエンジン３の始動を防止するものである。   Control for automatically starting the engine 3 when the remaining amount of the traveling battery 13 is equal to or less than the set amount can be set in advance by turning on the engine automatic start switch 21. That is, when the engine start switch 21 is turned off, even when the remaining amount of the traveling battery 13 is equal to or less than the set amount when the power switch 18 is turned on, the engine 3 is not automatically started, and the driver does not intend. The engine 3 is prevented from starting.

次に走行開始時について図５に基づいて説明する。
運転者が運転席６に着座して増速ペダル２２を踏むとアクセル情報がコントローラ２９に入力され、走行用駆動モータ１４が駆動を開始し、車体は走行を開始する。走行開始時に走行用バッテリ１３の電圧値を検出し、該電圧値が設定値以上の場合にはそのまま走行し、該電圧値が設定値以下の場合にはエンジン３を自動的に駆動を開始し充電を行なう。このとき、後述のＰＴＯクラッチ２７は切り状態である。 Next, the start of traveling will be described with reference to FIG.
When the driver sits on the driver's seat 6 and steps on the speed increasing pedal 22, accelerator information is input to the controller 29, the driving motor 14 for driving starts driving, and the vehicle body starts driving. The voltage value of the running battery 13 is detected at the start of running, and if the voltage value is equal to or higher than the set value, the vehicle travels as it is. Charge. At this time, a PTO clutch 27 described later is in a disconnected state.

走行開始時は、走行用駆動モータ１４の起動時に大きな電流が流れる。そのため、走行用バッテリ１３が過放電となっていると判定した場合には、エンジン３の駆動による充電を行なうことで走行用バッテリ１３の負荷を軽減し、円滑な走行を行なえるようにする。   At the start of traveling, a large current flows when the traveling drive motor 14 is started. Therefore, when it is determined that the traveling battery 13 is over-discharged, charging by driving the engine 3 reduces the load on the traveling battery 13 so that smooth traveling can be performed.

エンジン３の駆動を行い、充電された結果、走行用バッテリ１３の電圧値が設定値以上にまで到達するとエンジン３は自動的に停止する。以降、走行時は走行用バッテリ１３の電圧値を検出しながら、電圧値によりエンジン３が自動的に駆動を開始したり停止したりする。   As a result of driving and charging the engine 3, the engine 3 automatically stops when the voltage value of the traveling battery 13 reaches a set value or more. Thereafter, the engine 3 automatically starts or stops driving based on the voltage value while detecting the voltage value of the battery 13 for traveling during traveling.

該走行開始時に走行用バッテリ１３の電圧値の検出値によるエンジン３を自動的に駆動開始する制御は、エンジン自動始動スイッチ２１の入り切りに関わらず行なう構成にしても良い。すなわち、運転者が増速ペダル２２を踏むという意思に基づくため、エンジン３を自動的に駆動を開始しても差し支えないためである。   The control for automatically starting the engine 3 based on the detected value of the voltage value of the traveling battery 13 at the start of traveling may be performed regardless of whether the engine automatic start switch 21 is turned on or off. That is, since the driver is based on the intention of stepping on the speed increasing pedal 22, the engine 3 may be started automatically.

次に、作業機による作業時について図６から図８に基づいて説明する。
本実施の形態の作業機は草刈するモーア８で、ＰＴＯ入切操作手段であるＰＴＯスイッチ１９あるいは図示しないが手動のＰＴＯ操作レバーの操作によりエンジン３の駆動が開始すると共に、ＰＴＯクラッチ２７が入りとなり、エンジン３の動力がモーア８へ伝達され、モーア８は駆動する。そして、モーア８で刈り取った草は案内シュート１０を経て集草容器１１に収容される。 Next, a description will be given of the operation by the working machine with reference to FIGS.
The working machine according to the present embodiment is a mower 8 for mowing, the engine 3 starts to be driven by the operation of a PTO switch 19 as a PTO on / off operation means or a manual PTO operation lever (not shown), and a PTO clutch 27 is engaged. Thus, the power of the engine 3 is transmitted to the mower 8, and the mower 8 is driven. The grass cut by the mower 8 is accommodated in the grass collection container 11 through the guide chute 10.

ＰＴＯスイッチ１９の入り操作時には、エンジン３が自動的に駆動を開始すると共にＰＴＯクラッチ２７を入りとし、ＰＴＯスイッチ１９を切り操作するとＰＴＯクラッチ２７が切となりエンジン３が自動的に停止する。   When the PTO switch 19 is turned on, the engine 3 automatically starts driving and the PTO clutch 27 is turned on. When the PTO switch 19 is turned off, the PTO clutch 27 is turned off and the engine 3 is automatically stopped.

但し、ＰＴＯスイッチ１９を入にしてエンジン３を駆動している時でも以下の場合にはＰＴＯクラッチ２７を切にすると共にエンジン３を自動的に停止する。
第一はＰＴＯスイッチ１９を入りにしたが、走行を停止してから設定時間以上経過すると、自動的にＰＴＯクラッチ２７の切が行なわれると共にエンジン３が停止する。すなわち、車体が設定時間以上停止しているときにはモーア８を駆動させる意味がないため、エンジン３を停止させるものである。このとき、車体が走行を開始しても自動的にエンジン３が駆動を再開することを規制し、運転者がＰＴＯスイッチ１９を入り操作するとＰＴＯクラッチ１９が入りとなると共にエンジン３の駆動が再開し、芝刈り作業がなされる。それにより、自動的に草刈作業が発生するのを防止し、安全性が向上する（図７参照）。 However, even when the engine 3 is driven with the PTO switch 19 turned on, the PTO clutch 27 is turned off and the engine 3 is automatically stopped in the following cases.
First, the PTO switch 19 is turned on. However, when the set time has elapsed after the running is stopped, the PTO clutch 27 is automatically disengaged and the engine 3 is stopped. That is, it is meaningless to drive the mower 8 when the vehicle body is stopped for a set time or longer, and therefore the engine 3 is stopped. At this time, even if the vehicle body starts running, the engine 3 is automatically restrained from restarting. When the driver operates the PTO switch 19, the PTO clutch 19 is engaged and the engine 3 resumes driving. And lawn mowing work is done. This prevents the mowing operation from occurring automatically and improves safety (see FIG. 7).

なお、案内シュート１０内に刈り草が詰まったときに排出するために、車体を停止した状態でＰＴＯクラッチ２９を入りにしてエンジン３の駆動を継続するメンテナンススイッチ（図示せず）を設け手も良い。   In addition, a maintenance switch (not shown) is provided for continuing the driving of the engine 3 by turning on the PTO clutch 29 while the vehicle body is stopped in order to discharge when the cut grass is jammed in the guide chute 10. good.

第二は集草容器１１の満量センサ２４が満量を検出した場合である。すなわち、これ以上草刈作業を行なうことは出来ないのでＰＴＯクラッチ２７を切とすると共にエンジン３を停止する。この場合、走行を停止して集草容器１１をダンプさせて収容した草を排出する。このとき、満量センサ２４は満量を非検知状態となるが、エンジン３の駆動は自動的には再開せず、運転者がＰＴＯスイッチ１９を入り操作するとＰＴＯクラッチ２７が入りとなると共にエンジン３の駆動が再開する。それにより、自動的に草刈作業が発生するのを防止し、安全性が向上する（図８参照）。   The second case is when the full sensor 24 of the grass collection container 11 detects the full capacity. That is, since no further mowing work can be performed, the PTO clutch 27 is turned off and the engine 3 is stopped. In this case, the traveling is stopped, the grass collecting container 11 is dumped and the stored grass is discharged. At this time, the full sensor 24 is in a state where the full sensor is not detected, but the driving of the engine 3 is not automatically resumed. When the driver operates the PTO switch 19, the PTO clutch 27 is engaged and the engine is activated. The driving of 3 resumes. This prevents the mowing operation from occurring automatically and improves safety (see FIG. 8).

ＰＴＯスイッチ１９を入り操作すると走行用バッテリ１３の状態（電圧値・容量等）を検出してバッテリ充電の要・不要を行なう。すなわち、ＰＴＯスイッチを入り操作するとＰＴＯクラッチ２７が入りとし、エンジン３が駆動するが、走行用バッテリ１３の状態が十分と判定した場合には充電を行なわない。すなわち、充電用クラッチ１６を入りにしないでオルタネータ１２が駆動をしない。そして、走行用バッテリ１３の状態が不十分と判定した場合に充電用クラッチ１６を入りにしてオルタネータ１２を駆動させて充電を行なう。このような構成にすることで、効率的な充電を行なうことができる（図６参照）。   When the PTO switch 19 is turned on and operated, the state (voltage value, capacity, etc.) of the traveling battery 13 is detected to make the battery charging necessary / unnecessary. That is, when the PTO switch is turned on and operated, the PTO clutch 27 is turned on and the engine 3 is driven, but charging is not performed when it is determined that the state of the traveling battery 13 is sufficient. That is, the alternator 12 is not driven without turning on the charging clutch 16. When it is determined that the state of the traveling battery 13 is insufficient, the charging clutch 16 is engaged and the alternator 12 is driven to perform charging. With such a configuration, efficient charging can be performed (see FIG. 6).

１ 前輪
２ 後輪
３ エンジン
８ 作業機（モーア）
１３ 走行用バッテリ
１４ 走行用駆動モータ
１９ ＰＴＯスイッチ
２４ 満量センサ
２７ ＰＴＯクラッチ
２９ コントローラ 1 Front wheel 2 Rear wheel 3 Engine 8 Working machine (Moor)
13 Traveling Battery 14 Traveling Drive Motor 19 PTO Switch 24 Full Sensor 27 PTO Clutch 29 Controller

Claims (6)

走行輪と作業機とを備えた作業車両において、
走行輪を走行用駆動モータで駆動すると共に、作業機をエンジンで駆動する構成とし、
ＰＴＯ操作手段でＰＴＯクラッチを入りにしたときにエンジンの駆動を開始する制御を行なうと共に、ＰＴＯ操作手段でＰＴＯクラッチを切りにするとエンジンを停止する制御を行なう制御手段を設けたことを特徴とする作業車両。 In a work vehicle equipped with traveling wheels and a work machine,
The driving wheel is driven by a driving motor for driving and the work machine is driven by an engine.
Control means for starting the engine when the PTO clutch is engaged by the PTO operating means and control means for stopping the engine when the PTO clutch is disengaged by the PTO operating means is provided. Work vehicle. 走行用駆動モータは走行用バッテリの電力で駆動する構成とし、走行用バッテリはエンジンの動力にて充電可能に構成し、制御手段は走行用バッテリの状態から充電の要・不要を判定し、走行用バッテリの充電の不要を判定するとエンジン駆動中も充電を行なわないように制御することを特徴とする請求項１記載の作業車両。   The travel drive motor is configured to be driven by the power of the travel battery, the travel battery is configured to be rechargeable by the engine power, and the control means determines whether or not charging is necessary from the state of the travel battery, and travels 2. The work vehicle according to claim 1, wherein when it is determined that charging of the battery for use is not required, the work vehicle is controlled not to be charged even while the engine is driven. 作業機は草を刈るモーアであり、制御手段はＰＴＯクラッチが入り状態を検出しているときに、走行輪の停止状態が設定時間継続することを検出すると、エンジンを停止する制御を行なうことを特徴とする請求項１または請求項２記載の作業車両。   The working machine is a mower that cuts grass, and the control means performs control to stop the engine when it detects that the stop state of the traveling wheel continues for a set time while the PTO clutch is detected. The work vehicle according to claim 1 or claim 2, wherein 作業機は草を刈るモーアであり、モーアで刈った草を集草容器に収容する構成とし、制御手段はＰＴＯクラッチが入り状態を検出しているときに、集草容器の満量センサが満量を検出したときにエンジンを停止する制御を行なうことを特徴とする請求項１から請求項３いずれか記載の作業車両。   The working machine is a mower that cuts grass, and the grass cut by the mower is accommodated in the collecting container, and the control means detects that the full sensor of the collecting container is full when the PTO clutch is detected. 4. The work vehicle according to claim 1, wherein control for stopping the engine is performed when the amount is detected. 走行輪の停止状態が設定時間継続することを検出することによるエンジンの停止後、走行輪の走行を検出しても、ＰＴＯ操作手段によるＰＴＯクラッチ入りを検出するまでは、エンジンの駆動の再開を規制することを特徴とする請求項３記載の作業車両。   After stopping the engine by detecting that the stopped state of the traveling wheel continues for the set time, the engine driving is resumed until the traveling of the traveling wheel is detected until the PTO clutch engagement is detected by the PTO operation means. The work vehicle according to claim 3, wherein the work vehicle is regulated. 満量センサの満量検出によるエンジン停止後、集草容器の草を排出して満量センサによる満量を非検出の状態になっても、ＰＴＯ操作手段によるＰＴＯクラッチ入りを検出まではエンジンの駆動の再開を規制することを特徴とする請求項４記載の作業車両。   After stopping the engine due to full sensor detection, even if the grass in the collection container is discharged and the full sensor sensor is not fully detected, until the PTO clutch is detected by the PTO operating means, The work vehicle according to claim 4, wherein resumption of driving is restricted.
JP2011041465A 2011-02-28 2011-02-28 Work vehicle Expired - Fee Related JP5776221B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017163872A (en) * 2016-03-15 2017-09-21 本田技研工業株式会社 Lawn mower
JP2017163871A (en) * 2016-03-15 2017-09-21 本田技研工業株式会社 Lawn mower
WO2023127230A1 (en) * 2021-12-27 2023-07-06 株式会社クボタ Electric work vehicle

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JP2001163070A (en) * 1999-12-13 2001-06-19 Yanmar Agricult Equip Co Ltd Riding-type framing machine
JP2004166543A (en) * 2002-11-18 2004-06-17 Fuji Heavy Ind Ltd Mowing work vehicle
JP2005130799A (en) * 2003-10-31 2005-05-26 Iseki & Co Ltd Sulky lawn mower

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JP2001163070A (en) * 1999-12-13 2001-06-19 Yanmar Agricult Equip Co Ltd Riding-type framing machine
JP2004166543A (en) * 2002-11-18 2004-06-17 Fuji Heavy Ind Ltd Mowing work vehicle
JP2005130799A (en) * 2003-10-31 2005-05-26 Iseki & Co Ltd Sulky lawn mower

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017163872A (en) * 2016-03-15 2017-09-21 本田技研工業株式会社 Lawn mower
JP2017163871A (en) * 2016-03-15 2017-09-21 本田技研工業株式会社 Lawn mower
WO2023127230A1 (en) * 2021-12-27 2023-07-06 株式会社クボタ Electric work vehicle

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