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:
Feb. 23, 2010
Filed:
Jul. 11, 2005
Laure Carbonne, Toulouse, FR;
Patrick Cremona, Mondouzil, FR;
Roger Rouphael, L'Union, FR;
Continental Automotive France, Toulouse, FR;
Abstract
A method for determining the exhaust pressure (P) of a turbocharged internal combustion engine, including a solenoid by-pass valve for the exhaust gas, characterized in that an exhaust pressure (P) is determined as a function of the inlet air flow to the engine, (A), the engine speed (R) and the degree of opening of the solenoid exhaust by-pass valve (T), by interpolation from a reference map having exhaust gas pressure values (P) for given inlet air flow values (A), the engine speed (R) and the degree of opening of the solenoid exhaust by-pass valve (T), and the exhaust pressure determined by the interpolation (P) is corrected as a function of ambient pressure values (P, P).