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:
Mar. 05, 2013
Filed:
Apr. 19, 2010
David S. Mathews, Howell, MI (US);
Tameem K. Assaf, Milford, MI (US);
John V. Bowman, Farmington, MI (US);
Kenneth J. Buslepp, Brighton, MI (US);
Julian R. Verdejo, Farmington, MI (US);
David S. Mathews, Howell, MI (US);
Tameem K. Assaf, Milford, MI (US);
John V. Bowman, Farmington, MI (US);
Kenneth J. Buslepp, Brighton, MI (US);
Julian R. Verdejo, Farmington, MI (US);
Abstract
An engine control system includes a disturbance module, a misfire threshold determination module, a disturbance ratio module, and a spark control module. The disturbance module determines a disturbance value for a past combustion stroke of a cylinder based on rotation of a crankshaft. The misfire threshold determination module determines a jerk value indicative of a misfire within the cylinder. The disturbance ratio module determines a disturbance ratio for the past combustion stroke based on the disturbance value and the jerk value. The spark control module determines a spark timing for a future combustion stroke of the cylinder, determines a spark timing correction for the future combustion stroke based on the disturbance ratio, determines a corrected spark timing based on the spark timing and the spark timing correction, and generates spark during the future combustion stroke based on the corrected spark timing.