Title:
GEAR SHIFTING CONTROL DEVICE FOR OPERATION VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/074583
Kind Code:
A1
Abstract:
Disclosed is a gear shifting control device for an operation vehicle, this gear shifting control device being provided with a vehicle speed detection device which detects the speed of the operation vehicle; a transmission which shifts up and shifts down speed stages of a transmission; a gear shifting control device which gives permission for shift-up by the transmission when a vehicle speed detected by the vehicle speed detection device reaches a value not less than a shift-up permitting vehicle speed; a height position detection device which detects the height of an operation machine device; a forward/reverse travel switching device which switches between forward travel of the operation vehicle and the reverse travel thereof; and a shift-up control switching control device which switches between normal control and delay control, the aforementioned normal control being a control operation which causes the transmission to perform shift-up when the vehicle speed reaches a value not less than the shift-up permitting vehicle speed, and the aforementioned delay control being a control operation which delays shift-up timing, compared to normal control.
Inventors:
HYODO, Koji (LTD. TSUCHIURA WORKS INTELLECTUAL PROPERTY DEPT. 650 Kandatsu-machi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
兵藤 幸次 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
SHIMAZU, Atsushi (LTD. TSUCHIURA WORKS INTELLECTUAL PROPERTY DEPT. 650 Kandatsu-machi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
島津 淳志 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
兵藤 幸次 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
SHIMAZU, Atsushi (LTD. TSUCHIURA WORKS INTELLECTUAL PROPERTY DEPT. 650 Kandatsu-machi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
島津 淳志 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
Application Number:
JP2010/072498
Publication Date:
June 23, 2011
Filing Date:
December 14, 2010
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (5-1 Kouraku 2-chome, Bunkyou-ku Tokyo, 04, 〒1120004, JP)
日立建機株式会社 (〒04 東京都文京区後楽二丁目５番１号 Tokyo, 〒1120004, JP)
HYODO, Koji (LTD. TSUCHIURA WORKS INTELLECTUAL PROPERTY DEPT. 650 Kandatsu-machi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
兵藤 幸次 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
SHIMAZU, Atsushi (LTD. TSUCHIURA WORKS INTELLECTUAL PROPERTY DEPT. 650 Kandatsu-machi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
日立建機株式会社 (〒04 東京都文京区後楽二丁目５番１号 Tokyo, 〒1120004, JP)
HYODO, Koji (LTD. TSUCHIURA WORKS INTELLECTUAL PROPERTY DEPT. 650 Kandatsu-machi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
兵藤 幸次 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
SHIMAZU, Atsushi (LTD. TSUCHIURA WORKS INTELLECTUAL PROPERTY DEPT. 650 Kandatsu-machi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
International Classes:
F16H61/02; E02F3/43
Attorney, Agent or Firm:
NAGAI, Fuyuki (Fukoku Seimei Building 2-2-2, Uchisaiwaicho, Chiyoda-k, Tokyo 11, 〒1000011, JP)
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