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:
Mar. 10, 2015
Filed:
Jan. 31, 2011
Satoshi Fukuhara, Hiratsuka, JP;
Makito Yahata, Komatsu, JP;
Yukihiro Nakanishi, Hiratsuka, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A work vehicle includes an engine, a travel device, a hydraulic pump, a work implement, a torque converter device, and a controller. The torque converter includes a torque converter and a lockup clutch. The controller is configured to switch the lockup clutch between a connected state and a non-connected state in accordance with a travel state of the work vehicle. The controller is configured to determine whether load increase conditions associated with an increase in load on the work implement are satisfied, and to control the lockup clutch so that the lockup clutch is in the non-connected state when the load increase conditions are satisfied.