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. 08, 2017

Filed:

Jul. 22, 2015
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Shigeru Komatsu, Osaka, JP;

Keiji Takahashi, Osaka, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60W 30/14 (2006.01); B60W 10/06 (2006.01); B60W 10/101 (2012.01);
U.S. Cl.
CPC ...
B60W 30/143 (2013.01); B60W 10/06 (2013.01); B60W 10/101 (2013.01); B60W 2300/152 (2013.01);
Abstract

A speed control device in a traveling work vehicle changes a speed of rotational drive power from an engine to drive vehicle wheels and includes: a target speed calculator determining a target speed, based on operation deflection of a speed change device. A vehicle speed controller adjusting a speed change ratio based on the target speed. A vehicle speed obtainer obtaining an actual vehicle speed. A forcible target speed modifier forcibly modifying the target speed to a lower speed based on operation of a braking device. A release can treat an operation of the speed change device as a trigger to cancel the target speed forcibly modified by the forcible target speed modifier, and conforming the target speed to the actual vehicle speed.


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