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:
Jan. 20, 2004
Filed:
Apr. 22, 2002
Koji Sakakibara, Hekinan, JP;
Denso Corporation, Kariya, JP;
Abstract
An engine control system executes fuel injection and ignition in accordance with a detected engine rotational position. The engine control system has a crank sensor on a crankshaft and a cam sensor on a camshaft. The crank sensor generates a first reference position signal at intervals of 360 degrees CA. The cam sensor generates a second reference position signal at a rotational position different from the crank sensor. The engine control system also includes a means for controlling the engine on the basis of the first reference position signal and a means for controlling the engine on the basis of the second reference position signal. When the engine is started, either of the signals is detected so that it is possible to control the engine in accordance with a rotational position of the engine early. The cam sensor is also used in control of a variable valve timing unit.