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. 26, 2019

Filed:

Mar. 24, 2017
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Masao Yoshizawa, Tokyo, JP;

Shunsuke Miyamoto, Tokyo, JP;

Yasunori Ohkura, Tokyo, JP;

Assignee:

Komatsu Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 6/445 (2007.10); B60K 6/54 (2007.10); B60L 15/20 (2006.01); B60W 10/08 (2006.01); B60W 20/17 (2016.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
B60K 6/445 (2013.01); B60K 6/54 (2013.01); B60L 15/20 (2013.01); B60W 10/08 (2013.01); B60W 20/17 (2016.01); E02F 9/22 (2013.01);
Abstract

A hybrid work vehicle includes a traveling device and a control device. The traveling device includes first and second rotary electric machines, an internal-combustion engine, a power transmission device transmitting power output from the engine to a vehicle wheel through at least the first and second machines, a third rotary electric machine applying power to at least one of the first and second machines, and a braking device braking the vehicle wheel. The control device executes a first control of applying the power of the third machine to at least one of the first and second machines and a second control of canceling the first control when a vehicle speed of the traveling device becomes or exceeds a speed threshold value and continuously applies the power from the third machine when a braking force of the braking device is larger than a braking force threshold value during the second control.


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