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1. WO2015147255 - WORKING VEHICLE

Publication Number WO/2015/147255
Publication Date 01.10.2015
International Application No. PCT/JP2015/059594
International Filing Date 27.03.2015
IPC
F01P 7/04 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
7Controlling of coolant flow
02the coolant being cooling-air
04by varying pump speed, e.g. by changing pump-drive gear ratio
B60K 31/00 2006.1
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
31Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
CPC
B62D 55/06
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
55Endless track vehicles
06with tracks without ground wheels
E02F 3/7609
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
76Graders, bulldozers, or the like with scraper plates or ploughshare-like elements
7609Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
E02F 9/02
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
02Travelling-gear, e.g. associated with slewing gears
E02F 9/0866
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
08Superstructures; Supports for superstructures
0858Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
0866Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
E02F 9/2062
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
2058Electric or electro-mechanical or mechanical control devices of vehicle sub-units
2062Control of propulsion units
E02F 9/2095
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
2058Electric or electro-mechanical or mechanical control devices of vehicle sub-units
2095Control of electric, electro-mechanical or mechanical equipment not otherwise provided for, e.g. ventilators, electro-driven fans
Applicants
  • 株式会社小松製作所 KOMATSU LTD. [JP]/[JP]
Inventors
  • 日野 良章 HINO, Yoshiaki
  • 桐野 量行 KIRINO, Kazuyuki
  • 岩澤 智幸 Iwasawa, Tomoyuki
Agents
  • 新樹グローバル・アイピー特許業務法人 SHINJYU GLOBAL IP
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) WORKING VEHICLE
(FR) VÉHICULE DE CHANTIER
(JA) 作業車両
Abstract
(EN) This working vehicle is equipped with: an engine; a variable-capacity fan pump and a first variable-capacity traveling pump which are driven by the engine; a first variable-capacity traveling motor which is rotated by the hydraulic force of the first variable-capacity traveling pump; a traveling device which is driven by the first variable-capacity traveling motor; a fan motor which is rotated by the hydraulic force of the variable-capacity fan pump; a fan which is driven by the fan motor; an overrun state detection part for detecting an overrun state of the traveling device; and a control unit. When the value detected by the overrun state detection part has become equal to or greater than a first threshold value, the control unit increases the rotation speed of the fan so as to reach a first fan rotation speed. When the detected value has become equal to or greater than a second threshold value which is greater than the first threshold value, the control unit controls the rotation speed of the fan so as to reach a second fan rotation speed which is faster than the first fan rotation speed.
(FR) Selon l'invention, un véhicule de chantier comprend : un moteur ; une pompe de ventilateur à capacité variable et une première pompe mobile à capacité variable qui sont entraînées par le moteur ; un premier moteur mobile à capacité variable qui est mis en rotation par la force hydraulique de la première pompe mobile à capacité variable ; un dispositif mobile qui est entraîné par le premier moteur mobile à capacité variable ; un moteur de ventilateur qui est mis en rotation par la force hydraulique de la pompe de ventilateur à capacité variable ; un ventilateur qui est entraîné par le moteur de ventilateur ; une partie de détection d'état de dépassement pour détecter un état de dépassement du dispositif mobile; et une unité de commande. Lorsque la valeur détectée par la partie de détection d'état de dépassement est devenue égale ou supérieure à une première valeur de seuil, l'unité de commande augmente la vitesse de rotation du ventilateur de manière à atteindre une première vitesse de rotation de ventilateur. Lorsque la valeur détectée est devenue égale ou supérieure à une seconde valeur de seuil qui est supérieure à la première valeur de seuil, l'unité de commande commande la vitesse de rotation du ventilateur de manière à atteindre une seconde vitesse de rotation de ventilateur qui est plus rapide que la première vitesse de rotation de ventilateur.
(JA)  作業車両は、エンジンと、エンジンにより駆動されるファン用可変容量ポンプ及び第1走行用可変容量ポンプと、第1走行用可変容量ポンプの圧油により回転する第1走行用可変容量モータと、第1走行用可変容量モータによって駆動される走行装置と、ファン用可変容量ポンプの圧油により回転するファン用モータと、ファン用モータに駆動されるファンと、走行装置のオーバーラン状態を検出するオーバーラン状態検出部と、制御部とを備える。制御部は、オーバーラン状態検出部によって検出された検出値が第1閾値以上になったとき、ファンの回転速度を上昇させて、第1ファン回転速度となるように制御する。制御部は、検出値が第1閾値より大きい第2閾値以上になったとき、ファンの回転速度を第1ファン回転速度よりも大きい第2ファン回転速度となるように制御する。
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