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:
Feb. 11, 2014
Filed:
May. 09, 2012
Applicant:
Atsushi Shirao, Komatsu, JP;
Inventor:
Atsushi Shirao, Komatsu, JP;
Assignee:
Komatsu Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 61/42 (2010.01);
U.S. Cl.
CPC ...
Abstract
In a work vehicle, a control section increases the displacement of a hydraulic motor for travel when the drive circuit pressure becomes larger than a target pressure determined according to the engine rotational speed, and reduces the displacement of the hydraulic motor when the drive circuit pressure becomes smaller than the target pressure. The control section increases the target pressure of the hydraulic motor for travel when changing the matching point of the absorption torque curve of the hydraulic pump with respect to the output torque curve of the engine.