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. 27, 2002
Filed:
Feb. 26, 2001
Henrik Green, Gothenburg, SE;
Jan Dahlgren, Torslanda, SE;
AB Volvo, Gothenburg, SE;
Abstract
A method of adapting the ignition timing in an internal combustion engine to the crankshaft position depending on variations in engine rpm, load and overlap between the inlet and exhaust valves. The ratio between combusted and non-combusted gas in cylinders is computed, and this ratio is utilized, in such a way that the greater the proportion of combusted gas there is, the earlier the ignition will be initiated. The invention also relates to an engine with a control unit and means for computing said ratio and controlling the ignition timing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile