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. 13, 2007
Filed:
Jun. 15, 2001
Holger Adler, Stuttgart, DE;
Klaus Allmendinger, Bachhagel, DE;
Dirk Becker, Bruchsal, DE;
Oliver Erlenmayer, Pforzheim, DE;
Andreas Hasert, Remshalden, DE;
Hans-hubert Hemberger, Notzingen, DE;
Anton Kerckhoff, Stuttgart, DE;
Stefan Kurze, Markgroeningen, DE;
Michael Lenz, Fellbach, DE;
Thomas Liebscher, Fellbach, DE;
Ulrich Merten, Le-Echterdingen, DE;
Andreas Roll, Esslingen, DE;
Norbert Ruzicka, Steinenbronn, DE;
Holger Adler, Stuttgart, DE;
Klaus Allmendinger, Bachhagel, DE;
Dirk Becker, Bruchsal, DE;
Oliver Erlenmayer, Pforzheim, DE;
Andreas Hasert, Remshalden, DE;
Hans-Hubert Hemberger, Notzingen, DE;
Anton Kerckhoff, Stuttgart, DE;
Stefan Kurze, Markgroeningen, DE;
Michael Lenz, Fellbach, DE;
Thomas Liebscher, Fellbach, DE;
Ulrich Merten, Le-Echterdingen, DE;
Andreas Roll, Esslingen, DE;
Norbert Ruzicka, Steinenbronn, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
The invention relates to a method for operating a diesel engine in which an air ratio (λ) of the fuel which is to be burnt and of the combustion air supplied is set by a control unit () according to predetermined values. When a value () which is predetermined as a switching criterion is recorded, the control unit () switches to a special operating mode for regeneration of a catalytic converter () and sets the fuel/air ratio according to predetermined values for this operating mode. To achieve more effective regeneration of the catalytic converter, according to the invention it is provided that at least one afterinjection, which is separated in time from a main injection, of fuel which is also to be burnt takes place in the special operating mode.