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:
Apr. 10, 2018

Filed:

Mar. 22, 2016
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Tomokazu Yamauchi, Okazaki, JP;

Koichi Nakae, Susono, JP;

Assignee:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 20/13 (2016.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60K 6/26 (2007.10); B60K 6/28 (2007.10); B60K 6/387 (2007.10); B60K 6/48 (2007.10); B60K 6/547 (2007.10);
U.S. Cl.
CPC ...
B60W 20/13 (2016.01); B60K 6/26 (2013.01); B60K 6/28 (2013.01); B60K 6/387 (2013.01); B60K 6/48 (2013.01); B60K 6/547 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60K 2006/4808 (2013.01); B60K 2006/4825 (2013.01); B60Y 2200/92 (2013.01); B60Y 2300/60 (2013.01); B60Y 2300/91 (2013.01); B60Y 2400/20 (2013.01); B60Y 2400/602 (2013.01); Y02T 10/626 (2013.01); Y02T 10/6221 (2013.01); Y02T 10/6252 (2013.01); Y10S 903/93 (2013.01);
Abstract

A DC/DC converter is driven when an inter-terminal voltage of a low-voltage battery is lower than a determination voltage and an engine is started when the inter-terminal voltage becomes lower than a determination voltage during the driving of the DC/DC converter so that an alternator is driven at a predetermined driving point at which the alternator can he efficiently driven and the DC/DC converter is controlled such that the inter-terminal voltage of the low-voltage battery becomes a rated voltage. Energy efficiency can be improved since the alternator is efficiently driven.


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