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:
Apr. 03, 2012
Filed:
Jul. 22, 2008
Alessandro Catanese, Orbassano, IT;
Filippo Parisi, Turin, IT;
Eugenio Pisoni, Turin, IT;
Claudio Monferrato, Rondissone, IT;
Alessandro Catanese, Orbassano, IT;
Filippo Parisi, Turin, IT;
Eugenio Pisoni, Turin, IT;
Claudio Monferrato, Rondissone, IT;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A pressure monitoring system for a combustion engine includes, but is not limited to of combustion chambers and pressure sensors associated to at least some of the combustion chambers. A multiplexer has inputs connected to at least a first one and a second one of the pressure sensors. A non-zero phase shift exists between the operating cycles of first and second ones of the combustion chambers associated to the first and second pressure sensors. A controller controls the multiplexer to output data from the first pressure sensor while the first combustion chamber is in a predetermined portion of its operating cycle and pressure data from the second pressure sensor while the second combustion chamber is in the predetermined portion of its operating cycle.