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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.:

US 9855854 B1

PDFFull Text
Date of Patent:
Jan. 02, 2018

Filed:

Dec. 02, 2015

Charge control device and charge control method

Applicants:

Furukawa Electric Co., Ltd., Tokyo, JP;

Furukawa Automotive Systems Inc., Shiga, JP;

Inventors:

Shinichi Nomoto, Tokyo, JP;

Akira Ohno, Tokyo, JP;

Assignees:

FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;

FURUKAWA AUTOMOTIVE SYSTEMS INC., Shiga, JP;

Attorney:

Amin, Turocy & Watson, LLP

Primary Examiner:

Edward Tso

Assistant Examiner:

Ahmed Omar

Int. Cl.
CPC ...
H02J 7/00 (2006.01); B60L 11/18 (2006.01); B60W 30/18 (2012.01); B60L 1/00 (2006.01); B60L 7/18 (2006.01); B60L 11/00 (2006.01); B60L 11/14 (2006.01); B60L 15/20 (2006.01); H01M 10/44 (2006.01); H02J 7/16 (2006.01); H02J 7/14 (2006.01);
U.S. Cl.
CPC ...
B60L 11/1861 (2013.01); B60L 1/003 (2013.01); B60L 7/18 (2013.01); B60L 11/005 (2013.01); B60L 11/14 (2013.01); B60L 11/1848 (2013.01); B60L 11/1862 (2013.01); B60L 15/20 (2013.01); B60W 30/18127 (2013.01); H01M 10/44 (2013.01); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); B60L 2210/40 (2013.01); B60L 2240/12 (2013.01); B60L 2240/441 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2240/662 (2013.01); B60L 2260/26 (2013.01); H02J 7/1446 (2013.01); H02J 7/16 (2013.01); Y02T 10/645 (2013.01); Y02T 10/70 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7016 (2013.01); Y02T 10/7022 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/7275 (2013.01); Y02T 10/7291 (2013.01); Y02T 10/92 (2013.01); Y02T 90/16 (2013.01);
Abstract

To efficiently control charging and regenerative control for a secondary battery. A charge control device, including: a calculation unit (voltage sensor (), current sensor (), and control unit ()) that calculates a state of charge of the secondary battery; a detection unit (vehicle state detection unit ()) that detects a traveling state of the vehicle; and a control unit (control unit ()) that, when it is detected that the vehicle is decelerating, sets a voltage generated by an alternator higher than the terminal voltage of the secondary battery in order to regeneratively charge the secondary battery, that, when it is detected that that the vehicle is not decelerating, sets the voltage generated by the alternator lower than the terminal voltage of the secondary battery when a state of charge is greater than a prescribed second threshold value, and that sets the voltage generated by the alternator higher than the terminal voltage of the secondary battery when the state of charge is less than a prescribed first threshold value. The second threshold value is greater than the first threshold value, and the first threshold value and the second threshold value are set within a low SOC region.

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