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:
Jul. 14, 2015
Filed:
Mar. 01, 2010
Manfred Amann, San Antonio, TX (US);
Terrence F. Alger, Ii, San Antonio, TX (US);
Manfred Amann, San Antonio, TX (US);
Terrence F. Alger, II, San Antonio, TX (US);
SOUTHWEST RESEARCH INSTITUTE, San Antonio, TX (US);
Abstract
Methods and a related system of preventing a pre-ignition event in a spark ignition engine. Unusual crankcase pressure fluctuations often occur prior to a Low-Speed Pre-Ignition (LSPI) event. A high speed high resolution pressure transducer () attached to the crankcase () of an engine () takes a plurality of engine crankcase pressure measurements and relays these measurements to an engine control module (). The pressure measurements are analyzed to determine if unusual pressure fluctuations within the crankcase are occurring. If so, one or more engine control parameters are adjusted in order to mitigate a LSPI event. Various engine control parameters may be adjusted including fuel injection, engine load and combustion timing.