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:
Jun. 22, 2004
Filed:
May. 03, 2002
Masahiko Yuya, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In combustion control apparatus and method for a spark-ignited internal combustion engine, a counter is set to correspond to a drive time duration from a time at which a combustion drive state of the engine is started to be in a stratified combustion drive state to a time immediately before a smolder of a spark plug occurs in a state of which a spark is emitted between an outer electrode of the spark plug and a carbon deposited on an insulator porcelain thereof, a determination of whether it reaches to a time at which the stratified combustion drive state is inhibited is executed on the basis of a value of the counter, and the combustion drive state is forcibly switched from the stratified combustion drive state to a homogeneous combustion drive state when such a determination is carried out that it reaches to the time at which the stratified combustion drive state is inhibited.