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. 04, 2015
Filed:
Aug. 31, 2011
Kenneth J. Buslepp, Brighton, MI (US);
Daniel G. Brennan, Brighton, MI (US);
Julian R. Verdejo, Farmington, MI (US);
David S. Mathews, Howell, MI (US);
Kenneth J. Buslepp, Brighton, MI (US);
Daniel G. Brennan, Brighton, MI (US);
Julian R. Verdejo, Farmington, MI (US);
David S. Mathews, Howell, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system for a vehicle includes a time stamping module, a period determination module, a stochastic pre-ignition (SPI) indication module, and an SPI remediation module. The time stamping module generates first and second timestamps when a crankshaft of an engine is in first and second crankshaft positions during an engine cycle, respectively. The period determination module determines a period between the first and second timestamps. The SPI indication module selectively indicates that an SPI event occurred within a cylinder of the engine based on the period. The SPI remediation module selectively adjusts at least one engine operating parameter in response to the SPI indication module indicating that the SPI event occurred within the cylinder.