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:
Mar. 28, 2017

Filed:

Jul. 23, 2013
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventor:

Kenichi Kitamura, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/20 (2006.01); B60K 6/28 (2007.10); E02F 9/12 (2006.01); B60K 6/485 (2007.10); B60W 10/06 (2006.01); B60W 20/10 (2016.01); H05K 7/20 (2006.01); B60K 1/00 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2091 (2013.01); B60K 6/28 (2013.01); B60K 6/485 (2013.01); B60W 10/06 (2013.01); B60W 20/10 (2013.01); E02F 9/123 (2013.01); E02F 9/2075 (2013.01); E02F 9/2095 (2013.01); H05K 7/20927 (2013.01); B60K 2001/005 (2013.01); Y02T 10/6226 (2013.01); Y02T 10/6286 (2013.01); Y10S 903/907 (2013.01);
Abstract

A hybrid hydraulic excavator includes an engine, a generator motor, a capacitor, a cooling system being configured to cool the capacitor, and a controller. The cooling system includes a circulation mechanism being configured to circulate a cooling water, and a cooler being configured to cool the cooling water with output from the engine. The controller prohibits auto-stop of the engine when it is determined that the capacitor is overheated.


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