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:
Jul. 14, 2015
Filed:
Oct. 01, 2012
Komatsu Ltd., Tokyo, JP;
Takeshi Yoshikawa, Komatsu, JP;
Taneaki Fujino, Komatsu, JP;
KOMATSU LTD., Tokyo, JP;
Abstract
A crawler work vehicle includes an engine, left and right travel devices, a power transmission device, left and right steering clutches, left and right steering brakes, a rotation speed detecting device, a brake hydraulic pressure obtaining device, and a brake protecting device. The rotation speed detecting device detects an output rotation speed of the steering brakes. The brake hydraulic pressure obtaining device obtains a brake hydraulic pressure supplied to the steering brakes. The brake protecting device refers to the output rotation speed and the brake hydraulic pressure to compute a heat rate of the steering brakes, and executes a protection process of the steering brakes by reducing the engine output upon determining the heat rate that was computed is equal to or greater than a preset first threshold.