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:
May. 05, 2020

Filed:

Jul. 30, 2018
Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Shigeru Namiki, Saitama, JP;

Yuki Koizumi, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02N 11/08 (2006.01); G07C 5/08 (2006.01); G01R 31/367 (2019.01);
U.S. Cl.
CPC ...
F02N 11/0825 (2013.01); G01R 31/367 (2019.01); G07C 5/0808 (2013.01); F02N 2200/061 (2013.01); F02N 2200/0801 (2013.01); F02N 2200/101 (2013.01); F02N 2200/102 (2013.01); F02N 2300/30 (2013.01);
Abstract

Provided is an electric power system mounted on a vehicle having an engine, a battery, and a starter that starts the engine. The electric power system includes an SOC estimation part, estimating the SOC of the battery based on a first algorithm; an idling stop control part, permitting implementation of an idling stop control when an estimation result of the SOC estimation part satisfies a predetermined automatic stop condition; a full charge determination part, determining whether the battery is in a full charge state based on a second algorithm different from the first algorithm; and a malfunction determination part, determining that malfunction occurs in the SOC estimation part when the battery is estimated in the full charge state by the full charge determination part and the estimation result of the SOC estimation part does not satisfy the automatic stop condition.


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