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. 02, 2005
Filed:
Oct. 29, 2003
Manuela LA Rosa, Giarre, IT;
Donata Nicolosi, Sangregorio, IT;
Giuseppe Esposito Corcione, Marigliano, IT;
Manuela La Rosa, Giarre, IT;
Donata Nicolosi, Sangregorio, IT;
Giuseppe Esposito Corcione, Marigliano, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
The invention relates to a virtual sensor of exhaust emissions from a fuel-injection endothermic engine having a combustion chamber in each of its cylinders, a fuel injector serving each combustion chamber, and an electronic fuel-injection control unit. Advantageously, the virtual sensor includes an input interface receiving a signal from at least one pressure sensor for measuring the pressure inside at least one combustion chamber of the engine, a second input interface receiving signals from the electronic fuel-injection control unit, and a calculation block to provide estimates of the amounts of nitrogen compounds and particulates in the emissions based on the pressure and other relevant signals to the engine operation.