The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2015
Filed:
Feb. 16, 2011
Applicants:
Satoshi Asami, Hiratsuka, JP;
Jun Koizumi, Hadano, JP;
Shotaro Ishii, Sagamihara, JP;
Inventors:
Assignee:
KOMATSU LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/20 (2006.01); F02D 29/04 (2006.01); B60W 10/30 (2006.01); B60W 30/188 (2012.01); E02F 9/22 (2006.01); F16H 61/472 (2010.01);
U.S. Cl.
CPC ...
F02D 29/04 (2013.01); B60W 10/30 (2013.01); B60W 30/1886 (2013.01); E02F 9/2246 (2013.01); E02F 9/2253 (2013.01); E02F 9/2289 (2013.01); E02F 9/2292 (2013.01); F16H 61/472 (2013.01); Y02T 10/76 (2013.01);
Abstract
A work vehicle includes a drive source, a travel device, a hydraulic pump, a work implement, a traction force detector, a lift force detector and a controller. The traction force detector is configured to detect traction force of the work vehicle. The lift force detector is configured to detect lift force for raising the work implement. The controller is configured to compare a predetermined threshold and a ratio between the lift force and the traction force, and to execute traction force reduction control for reducing the traction force when an increase in the lift force is required.