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.

Date of Patent:
May. 13, 2014

Filed:

Dec. 25, 2009
Applicants:

Koji Uematsu, Oyama, JP;

Kazuhiro Hatake, Kanagawa, JP;

Yuya Kusumoto, Hiratsuka, JP;

Inventors:

Koji Uematsu, Oyama, JP;

Kazuhiro Hatake, Kanagawa, JP;

Yuya Kusumoto, Hiratsuka, JP;

Assignee:

Komatsu Ltd., Minato-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/20 (2006.01); B60K 23/00 (2006.01); B60T 8/17 (2006.01); B60W 10/184 (2012.01);
U.S. Cl.
CPC ...
Abstract

A traction control device includes: rotation speed detectors provided to wheels; a control-start determiner that determines whether or not to control a braking mechanism and a differential adjusting mechanism based on rotation speeds; a braking mechanism controller that controls the braking mechanism based on a result of the determination of the control-start determiner; and a differential adjusting mechanism controller that controls the differential adjusting mechanism based on the result of the determination of the control-start determiner, in which the control-start determiner includes: a right-left-wheel rotation speed difference calculating section; a front-rear-wheel rotation speed difference calculating section; and a control-start determining section that determines whether or not to start controlling at least one of the braking mechanism and the differential adjusting mechanism when one of rotation speed differences reaches or exceeds a predetermined threshold.


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