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. 24, 2015

Filed:

Sep. 17, 2013
Applicants:

Kobe Steel, Ltd., Kobe-shi, JP;

Kobelco Construction Machinery Co., Ltd., Hiroshima-shi, JP;

Inventors:

Yoshiaki Kitamura, Kobe, JP;

Takayuki Doi, Hiroshima, JP;

Naoki Goto, Hiroshima, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N 11/06 (2006.01); H02P 9/04 (2006.01); B60L 11/18 (2006.01); E02F 9/20 (2006.01); B60L 9/00 (2006.01);
U.S. Cl.
CPC ...
B60L 11/1814 (2013.01); E02F 9/2091 (2013.01);
Abstract

A charge and discharge control unit () sets an upper-limit charge and discharge electric power as an upper limit of electric power during charging and discharging of a electric storage device () based on temperature of the electric storage device () measured by a temperature measuring unit () and a state of charge of the electric storage device () specified by a charge state specifying unit (). In the case where the operation state determined by an operation state determining unit () is a low-limit operation state, the charge and discharge control unit () sets the upper-limit charge and discharge electric power to be larger than that in the case where the operation state determined by the operation state determining unit () is a high-limit operation state.


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