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:
Apr. 22, 2014
Filed:
May. 09, 2012
Atsushi Shirao, Komatsu, JP;
Shigeo Hashimoto, Komatsu, JP;
Atsushi Shirao, Komatsu, JP;
Shigeo Hashimoto, Komatsu, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A working vehicle includes an engine, a hydraulic pump, a first hydraulic motor, a vehicle speed detecting unit, a parking brake, a parking brake operating member and a control unit. The control unit is configured to determine whether the vehicle speed is equal to or greater than a predetermined threshold when the parking brake operating member is operated. The control unit is configured to execute a brake control that decreases a displacement of the first hydraulic pump and increases a displacement of the first hydraulic motor without activating the parking brake when the vehicle speed is equal to or greater than the predetermined threshold in a state when the vehicle is traveling, and to activate the parking brake when the vehicle speed falls below the predetermined threshold.