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. 27, 2007
Filed:
Jan. 31, 2005
Piet Ameloot, Neuilly sur Seine, FR;
Pascal Folliot, Guyancourt, FR;
Piet Ameloot, Neuilly sur Seine, FR;
Pascal Folliot, Guyancourt, FR;
Peugeot Citroen Automobiles SA, Velizy-Villacoublay, FR;
Abstract
A system for assisting regeneration of depollution included in an exhaust system of a motor vehicle engine by switching the engine between operation in lean mode and operation in rich mode, depending on various parameters for controlling the operation of the engine, which includes a lambda probe placed in the exhaust gas outlet from the engine, and which corrects at least one of the operating parameters of the engine in order to provide closed-loop regulation of the richness of the exhaust gas about a target value while the engine is operating in rich mode.