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:
Aug. 04, 2015

Filed:

Sep. 11, 2013
Applicant:

Kubota Corporation, Osaka-shi, JP;

Inventors:

Akihiro Matsuzaki, Sakai, JP;

Satoshi Yoshikawa, Sakai, JP;

Michita Kono, Sakai, JP;

Assignee:

Kubota Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K 23/08 (2006.01); B60W 10/06 (2006.01); B60K 28/16 (2006.01);
U.S. Cl.
CPC ...
B60K 23/08 (2013.01); B60W 10/06 (2013.01); B60K 28/16 (2013.01); B60K 2023/0858 (2013.01); B60Y 2200/221 (2013.01); B60Y 2300/181 (2013.01); B60Y 2300/18175 (2013.01);
Abstract

A drive control system for a work vehicle is provided with a power transmission device that drives front wheels and rear wheels, a request determination unit, and a drive mode control unit. The power transmission device has a drive mode switching mechanism that performs drive mode switching between a four-wheel drive mode in which drive power is transmitted to front wheels and rear wheels and a two-wheel drive mode in which drive power is transmitted to only the rear wheels. The request determination unit determines a necessity for an increase in drive power on a contact area of the work vehicle, and outputs an increase request based on the determination result. The drive mode control unit outputs a drive mode switching request for switching to the four-wheel drive mode to the drive mode switching mechanism, in response to output of the increase request.


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