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:
Nov. 07, 2017

Filed:

Jan. 28, 2015
Applicant:

Kcm Corporation, Hyogo, JP;

Inventors:

Isamu Aoki, Tsukuba, JP;

Koji Hyodo, Kasumigaura, JP;

Tetsuji Tanaka, Abiko, JP;

Kentaro Oomae, Ushiku, JP;

Assignee:

KCM Corporation, Hyogo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/12 (2006.01); F02D 31/00 (2006.01); F02D 29/02 (2006.01); F02D 41/02 (2006.01); F02D 29/04 (2006.01);
U.S. Cl.
CPC ...
F02D 31/009 (2013.01); F02D 29/02 (2013.01); F02D 41/0205 (2013.01); F02D 29/04 (2013.01); F02D 2200/023 (2013.01); F02D 2200/101 (2013.01);
Abstract

A prime mover control device for a work vehicle, includes: a rotation speed control unit that controls a rotation speed of a prime mover in correspondence to an operation quantity of an accelerator operation member; a temperature detection unit that detects a temperature of cooling oil used to cool a brake; and a speed limiting unit that limits a maximum rotation speed of the prime mover by setting a lower limit for the maximum rotation speed when the temperature of the cooling oil detected by the temperature detection unit is higher than a predetermined temperature, compared to a limit set when the temperature of the cooling oil detected by the temperature detection unit is lower than the predetermined temperature, wherein: a maximum vehicle speed is limited by limiting the maximum rotation speed of the prime mover by the speed limiting unit.


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