Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MOTOR GRADER
Document Type and Number:
WIPO Patent Application WO/2010/016354
Kind Code:
A1
Abstract:
Provided is a motor grader which can avoid an engine stall without degrading the operation feeling during a low-speed running.  The motor grader includes: an engine, a torque converter, driving wheels, an engine rpm detection unit, and a control unit.  The torque converter has a lockup clutch for transmitting a drive force from the engine.  The driving wheels are rotated and driven by the drive force from the engine.  The engine rpm detection unit detects an engine rpm.  The control unit performs control as follows.  When the lockup clutch is in a connected state, the connection state is maintained if the engine rpm is greater than a predetermined lockup release rpm which is smaller than a low idle rpm and the lockup clutch is switched to an open state when the engine rpm is reduced to the lockup release rpm.

Inventors:
NISHIMAKI, Kazuhito (Tsu 23 Futsu-machi, Komatsu-sh, Ishikawa 92, 〒9230392, JP)
西巻 一仁 (〒92 石川県小松市符津町ツ23 株式会社小松製作所 粟津工場内 Ishikawa, 〒9230392, JP)
AIDA, Michihiro (Tsu 23 Futsu-machi, Komatsu-sh, Ishikawa 92, 〒9230392, JP)
相田 倫弘 (〒92 石川県小松市符津町ツ23 株式会社小松製作所 粟津工場内 Ishikawa, 〒9230392, JP)
TAKEKUMA, Noritoshi (Tsu 23 Futsu-machi, Komatsu-sh, Ishikawa 92, 〒9230392, JP)
Application Number:
JP2009/062506
Publication Date:
February 11, 2010
Filing Date:
July 09, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KOMATSU LTD. (2-3-6, Akasaka Minato-k, Tokyo 14, 〒1078414, JP)
株式会社小松製作所 (〒14 東京都港区赤坂2-3-6 Tokyo, 〒1078414, JP)
NISHIMAKI, Kazuhito (Tsu 23 Futsu-machi, Komatsu-sh, Ishikawa 92, 〒9230392, JP)
西巻 一仁 (〒92 石川県小松市符津町ツ23 株式会社小松製作所 粟津工場内 Ishikawa, 〒9230392, JP)
AIDA, Michihiro (Tsu 23 Futsu-machi, Komatsu-sh, Ishikawa 92, 〒9230392, JP)
相田 倫弘 (〒92 石川県小松市符津町ツ23 株式会社小松製作所 粟津工場内 Ishikawa, 〒9230392, JP)
International Classes:
F16H61/14; F16H59/42; F16H59/74; F16H61/684
Foreign References:
JP2000320362A
JPH05272636A
JPH02245572A
JP2005180702A
JP2004256063A
JPH11201279A
JP2005221073A
JP2002098165A
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (South Forest Bldg, 1-4-19 Minamimori-machi, Kita-ku, Osaka-sh, Osaka 54, 〒5300054, JP)
Download PDF: