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. 15, 2007

Filed:

Oct. 11, 2005
Applicants:

Yasuhiro Tanaka, Kariya, JP;

Makoto Kawatsu, Anjo, JP;

Nobutomo Takagi, Okazaki, JP;

Naoki Maeda, Nisshin, JP;

Inventors:

Yasuhiro Tanaka, Kariya, JP;

Makoto Kawatsu, Anjo, JP;

Nobutomo Takagi, Okazaki, JP;

Naoki Maeda, Nisshin, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N 11/08 (2006.01); H02J 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

An engine starting assist system includes an auxiliary ECU having a voltage booster, an engine ECU, a starter relay, and a starter that allows the engine to be started when a current flows through the starter relay. The auxiliary ECU and the engine ECU are powered by a battery and supply currents to the starter relay. When the engine ECU resets the supply of the current to the starter relay because of a voltage drop of the battery during starting of the engine, the auxiliary ECU increases the voltage supplied from the battery using the booster, thereby supplying the current to the starter relay.


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