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1. (WO2019003760) WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE
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Pub. No.: WO/2019/003760 International Application No.: PCT/JP2018/020534
Publication Date: 03.01.2019 International Filing Date: 29.05.2018
IPC:
F16H 61/431 (2010.01) ,E02F 9/22 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
61
Control functions within change-speed- or reversing-gearings for conveying rotary motion
38
Control of exclusively fluid gearing
40
hydrostatic
42
involving adjustment of a pump or motor with adjustable output or capacity
431
Pump capacity control by electro-hydraulic control means, e.g. using solenoid valve
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20
Drives; Control devices
22
Hydraulic or pneumatic drives
Applicants:
株式会社小松製作所 KOMATSU LTD. [JP/JP]; 東京都港区赤坂2-3-6 2-3-6, Akasaka, Minato-ku, Tokyo 1078414, JP
Inventors:
大浅 貴央 OASA, Takahisa; JP
Agent:
新樹グローバル・アイピー特許業務法人 SHINJYU GLOBAL IP; 大阪府大阪市北区南森町1丁目4番19号 サウスホレストビル South Forest Bldg., 1-4-19, Minamimori-machi, Kita-ku, Osaka-shi, Osaka 5300054, JP
Priority Data:
2017-12537527.06.2017JP
Title (EN) WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE
(FR) VÉHICULE DE CHANTIER ET SON PROCÉDÉ DE COMMANDE
(JA) 作業車両及び作業車両の制御方法
Abstract:
(EN) This controller receives a signal from a rotational speed sensor and a hydraulic pressure sensor. On the basis of the rotational speed of an engine, the controller assesses whether the engine is in a state of over-rotation. In accordance with the hydraulic pressure of a hydraulic circuit, the controller determines an upper limit value for the capacity of a pump for traveling. When the controller has assessed that the engine is in a state of over-rotation, the controller limits the capacity of the pump for traveling to be no more than the upper limit value.
(FR) La présente invention concerne un dispositif de commande destiné à recevoir un signal en provenance d'un capteur de vitesse de rotation et d'un capteur de pression hydraulique. En fonction de la vitesse de rotation d'un moteur, le dispositif de commande évalue si le moteur est en état de rotation excessive. En fonction de la pression hydraulique d'un circuit hydraulique, le dispositif de commande détermine une valeur limite supérieure de la capacité de déplacement d'une pompe. Lorsque le dispositif de commande a évalué que le moteur est en état de rotation excessive, le dispositif de commande limite la capacité de déplacement de la pompe de manière à ne pas dépasser la valeur limite supérieure.
(JA) コントローラは、回転速度センサ及び油圧センサからの信号を受信する。コントローラは、エンジン回転速度に基づいて、エンジンが過回転状態にあるかを判定する。コントローラは、油圧回路の油圧に応じて、走行用ポンプの容量の上限値を決定する。コントローラは、エンジンが過回転状態にあると判定したときには、走行用ポンプの容量を上限値以下に制限する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)