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:
Nov. 08, 2011
Filed:
Feb. 28, 2008
Hidenori Moriya, Susono, JP;
Hidenori Moriya, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
An internal combustion engine () is provided with an in-cylinder pressure sensor () for detecting an in-cylinder pressure in a combustion chamber () and an ECU (). The ECUcalculates a heat release quantity parameter showing a combustion state based upon a detected in-cylinder pressure, calculates a combustion delay based upon the detected in-cylinder pressure, and determines fuel property based upon a comparison between a calculated heat release quantity parameter and the calculated combustion delay; and a heat release quantity parameter and a combustion delay corresponding to reference fuel.
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