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1. WO2013145336 - WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE

Publication Number WO/2013/145336
Publication Date 03.10.2013
International Application No. PCT/JP2012/061877
International Filing Date 09.05.2012
IPC
F16H 61/42 2010.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within change-speed- or reversing-gearings for conveying rotary motion
38Control of exclusively fluid gearing
40hydrostatic
42involving adjustment of a pump or motor with adjustable output or capacity
CPC
B60K 28/165
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
28Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
10responsive to conditions relating to the vehicle 
16responsive to, or preventing, skidding of wheels
165acting on elements of the vehicle drive train other than the propulsion unit and brakes, e.g. transmission, clutch, differential
B60W 10/06
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10Conjoint control of vehicle sub-units of different type or different function
04including control of propulsion units
06including control of combustion engines
B60W 10/103
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10Conjoint control of vehicle sub-units of different type or different function
10including control of change-speed gearings
101Infinitely variable gearings
103of fluid type
B60W 2510/0638
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2510Input parameters relating to a particular sub-units
06Combustion engines, Gas turbines
0638Engine speed
B60W 2540/10
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2540Input parameters relating to occupants
10Accelerator pedal position
B60W 2710/0644
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2710Output or target parameters relating to a particular sub-units
06Combustion engines, Gas turbines
0644Engine speed
Applicants
  • 株式会社小松製作所 KOMATSU LTD. [JP]/[JP] (AllExceptUS)
  • 白尾 敦 SHIRAO, Atsushi [JP]/[JP] (UsOnly)
Inventors
  • 白尾 敦 SHIRAO, Atsushi
Agents
  • 新樹グローバル・アイピー特許業務法人 SHINJYU GLOBAL IP
Priority Data
2012-07893930.03.2012JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE
(FR) VÉHICULE DE TRAVAUX ET PROCÉDÉ DE CONTRÔLE D'UN VÉHICULE DE TRAVAUX
(JA) 作業車両及び作業車両の制御方法
Abstract
(EN)
This work vehicle is provided with: an engine, a hydraulic pump, a hydraulic motor for traveling, an accelerator operation member, and a control unit. The hydraulic pump is driven by the engine. The hydraulic motor for traveling is driven by hydraulic oil discharged from the hydraulic pump. The accelerator operation member is operated in order to set the target rotational velocity of the engine. The control unit performs traction control that reduces the maximum traction by means of limiting the capacity of the hydraulic motor for traveling to an upper limit capacity that is smaller than the maximum capacity. During traction control, in accordance with the increase of the engine rotational velocity or the amount of operation of the accelerator operation member, the control unit increases the upper limit capacity of the hydraulic motor for traveling.
(FR)
L'invention concerne un véhicule de travaux comprenant : un moteur, une pompe hydraulique, un moteur hydraulique de déplacement, un élément d'actionnement d'accélérateur, et une unité de commande. La pompe hydraulique est entraînée par le moteur. Le moteur hydraulique de déplacement est entraîné par de l'huile hydraulique fournie par la pompe hydraulique. L'élément d'actionnement d'accélérateur est actionné afin de régler la vitesse de rotation cible du moteur. L'unité de commande effectue un contrôle de la traction qui réduit la traction maximale au moyen d'une limitation de la capacité du moteur hydraulique de déplacement à une capacité de limite supérieure qui est inférieure à la capacité maximale. Pendant le contrôle de la traction, conformément à l'augmentation de la vitesse de rotation du moteur ou de l'ampleur du fonctionnement de l'élément d'actionnement d'accélérateur, l'unité de commande augmente la capacité de limite supérieure du moteur hydraulique de déplacement.
(JA)
 作業車両は、エンジンと、油圧ポンプと、走行用油圧モータと、アクセル操作部材と、制御部と、を備える。油圧ポンプは、エンジンによって駆動される。走行用油圧モータは、油圧ポンプから吐出された作動油によって駆動される。アクセル操作部材は、エンジンの目標回転速度を設定するために操作される。制御部は、走行用油圧モータの容量を最大容量よりも小さい上限容量に制限することにより最大牽引力を低減させるトラクション制御を行う。制御部は、トラクション制御において、アクセル操作部材の操作量又はエンジン回転速度の増大に応じて走行用油圧モータの上限容量を増大させる。
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