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1. (WO2018038268) WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE
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Pub. No.: WO/2018/038268 International Application No.: PCT/JP2017/030626
Publication Date: 01.03.2018 International Filing Date: 25.08.2017
IPC:
B62D 5/28 (2006.01) ,B62D 5/065 (2006.01) ,B62D 6/00 (2006.01) ,E02F 9/16 (2006.01) ,E02F 9/22 (2006.01) ,E02F 9/26 (2006.01) ,B62D 113/00 (2006.01) ,B62D 115/00 (2006.01) ,B62D 117/00 (2006.01) ,B62D 119/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
5
Power-assisted or power-driven steering
06
fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
20
specially adapted for particular type of steering gear or particular application
28
for pivoted bogies
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
5
Power-assisted or power-driven steering
06
fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
065
characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
6
Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
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
16
Cabins, platforms, or the like for the driver
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
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
26
Indicating devices
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
113
Position of parts of the steering mechanism, e.g. the steered wheels or the steering wheel
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
115
Angle of articulation of articulated vehicle; Angle of tow-bar to towing vehicle
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
117
Angular velocity of steering wheel
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
119
Steering wheel torque
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:
竹中 唯太 TAKENAKA, Yuita; JP
碇 政典 IKARI, Masanori; JP
中林 正信 NAKABAYASHI, Masanobu; 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:
2016-16594426.08.2016JP
Title (EN) WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE
(FR) ENGIN DE CHANTIER ET PROCÉDÉ DE COMMANDE D'ENGIN DE CHANTIER
(JA) 作業車両および作業車両の制御方法
Abstract:
(EN) A wheel loader (1) comprising steering cylinders (21, 22), a steering pump (31a), a joystick lever (24), a pilot valve (42), an angular velocity corresponding value detection unit (27), a notification unit (29), and a control unit (28). The pilot valve (42) controls the flow rate for oil supplied from the steering pump (31a) to the steering cylinders (21, 22), on the basis of the joystick lever (24) operation amount. The angular velocity corresponding value detection unit (27) detects a corresponding value corresponding to a steering angular velocity that changes on the basis of the oil flow rate. The notification unit (29) sends, to an operator, a notification indicating that the corresponding value has reached a pre-set threshold value, on the basis of the upper limit of the steering angular velocity. If the control unit (28) detects that the corresponding value has reached the threshold value, the control unit (28) causes the notification unit (29) to make a notification.
(FR) Une chargeuse sur pneus (1) comprend des vérins de direction (21,22), une pompe de direction (31a), un levier de commande (24), une vanne pilote (42), une unité de détection de valeur correspondante à la vitesse angulaire (27), une unité de notification (29) ainsi qu'une unité de commande (28). La vanne pilote (42) régule le débit d'huile fournie par la pompe de direction (31a) aux vérins de direction (21, 22) d’après la quantité de fonctionnement du levier de commande (24). L'unité de détection de valeur correspondante à la vitesse angulaire (27) détecte une valeur correspondante à une vitesse angulaire de direction qui évolue en fonction du débit d'huile. L'unité de notification (29) envoie à un opérateur une notification indiquant que la valeur correspondante a atteint une valeur de seuil prédéfinie d’après la limite supérieure de la vitesse angulaire de direction. Si l'unité de commande (28) détecte que la valeur correspondante a atteint la valeur seuil, l'unité de commande (28) amène l'unité de notification (29) à effectuer une notification.
(JA) ホイールローダ(1)は、ステアリングシリンダ(21、22)と、ステアリングポンプ(31a)と、ジョイスティックレバー(24)と、パイロット弁(42)と、角速度対応値検出部(27)と、通知部(29)と、制御部(28)と、を備える。パイロット弁(42)は、ジョイスティックレバー(24)の操作量に基づいてステアリングポンプ(31a)からステアリングシリンダ(21、22)に供給する油の流量を制御する。角速度対応値検出部(27)は、油の流量に基づいて変更されるステアリング角速度に対応する対応値を検出する。通知部(29)は、対応値がステアリング角速度の上限に基づいて予め設定された閾値に達したことを示す通知をオペレータに行う。制御部(28)は、対応値が閾値に達したことを検出した場合に、通知部(29)に通知を行わせる。
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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)