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:
Aug. 09, 2005
Filed:
Sep. 23, 2004
Akihiko Minato, Fujisawa, JP;
Akihiko Minato, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
In an internal combustion engine of a premixed charge compression self-ignition type in which fuel and intake gas are premixed with each other, and the mixture is compressed and self-ignites, target ignition timing determination means () to determine a target ignition timing θ based on at least an engine operation state, target compression ratio determination means () to determine a target compression ratio (εt) required for the mixture to ignite, and control means () to control opening and closing of an intake valve () so that an effective compression ratio at the target ignition timing (θ) becomes equal to the target compression ratio (εt) are provided. According to this, the ignition timing of the fuel can be appropriately controlled.