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. 05, 2011
Filed:
Nov. 18, 2005
Lionel Cordesses, Velizy Villacoublay, FR;
Didier Martinez, Ecquevilly, FR;
Lionel Cordesses, Velizy Villacoublay, FR;
Didier Martinez, Ecquevilly, FR;
RENAULT s.a.s., Boulogne Billancourt, FR;
Abstract
(EN) The invention concerns a device for controlling an internal combustion engine (), comprising means () for generating a signal for controlling the internal combustion engine (), a sensor () for supplying a pressure measurement signal of a combustion chamber of the internal combustion engine (), and a filtering device () for generating a filtered pressure signal, said filtering device () being made from analog electronic components. The invention is characterized in that the filtering device () has a closed loop configuration with a direct portion () and a return portion (), the return portion comprising a module for re-injecting () said filtered pressure signal (P) and the direct portion including: a first subtracting module () generating the difference between said pressure measurement signal (P) and the output of said re-injection module (), a static non-linear module () in output of said subtracting module, an integrating module () generating said filtered pressure signal (P) by integration from the output of said non-linear module.