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:
Nov. 06, 2007
Filed:
Jan. 18, 2006
Kunihiko Suzuki, Chiyoda-ku, JP;
Taizo Miyazaki, Chiyoda-ku, JP;
Mamoru Nemoto, Chiyoda-ku, JP;
Takuya Shiraishi, Chiyoda-ku, JP;
Kunihiko Suzuki, Chiyoda-ku, JP;
Taizo Miyazaki, Chiyoda-ku, JP;
Mamoru Nemoto, Chiyoda-ku, JP;
Takuya Shiraishi, Chiyoda-ku, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A spark advance controller capable of controlling spark advance in an internal combustion engine with high accuracy without requiring a larger number of data maps and performing laborious optimization tests using an actual engine. In the spark advance controller, map data for controlling the spark advance is computed by a numerical simulator simulating an internal combustion engine, and the map data for spark advance control is approximated with a regression model. The spark advance is computed by using the regression model depending on the detected operating conditions.