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:
May. 14, 2002
Filed:
Sep. 30, 1999
Eric Marcheguet, Chatou, FR;
Xavier Moine, Rueil Malmaison, FR;
Renault, Boulogne Billancourt, FR;
Abstract
Process for calculating the torque of an internal combustion engine having electronic injection. The method includes having a cogged target with an indexed reference rotating before a fixed sensor. The defects of the target are corrected by distinguishing the combustion interval of the target from the reference. A term assigned to each interval is $g(b) which is determined in the absence of combustion from the measurement of the engine torque which is proportional to the pressure in the commutator represented by the equation C =K.P =&agr;(&Sgr;N+$g(b) )N where C is the engine torque, P is the pressure, N is the engine power, K is the proportionality factor and &agr; is a constant term.