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.
Patent No.:
Date of Patent:
Aug. 08, 2017
Filed:
Aug. 13, 2015
Applicant:
Kobelco Construction Machinery Co., Ltd., Hiroshima-shi, JP;
Inventor:
Takayuki Doi, Hiroshima, JP;
Assignee:
KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F15B 21/08 (2006.01); H02J 7/00 (2006.01); E02F 9/20 (2006.01); G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
F15B 21/08 (2013.01); E02F 9/2075 (2013.01); E02F 9/2091 (2013.01); G01R 31/3679 (2013.01); H02J 7/007 (2013.01); H02J 7/0021 (2013.01);
Abstract
A hybrid construction machine detects the voltage of each cell that forms a battery, calculates a difference voltage between the detected voltage and a predetermined upper-limit working voltage, selects the lower one of the calculated difference voltage and a stored difference voltage, corrects an upper-limit working charging rate to decrease as the selected difference voltage decreases, and controls charging of the battery, based on the corrected upper-limit working charging rate.