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:
Dec. 27, 2005
Filed:
Nov. 06, 2003
Xinlei Wang, Champaign, IL (US);
Xinqun Gui, Naperville, IL (US);
Shouxian Ren, Aurora, IL (US);
Guoqing Zhang, Lisle, IL (US);
Xinlei Wang, Champaign, IL (US);
Xinqun Gui, Naperville, IL (US);
Shouxian Ren, Aurora, IL (US);
Guoqing Zhang, Lisle, IL (US);
International Engine Intellectual Property Company, LLC, Warrenville, IL (US);
Abstract
A control system (FIG.) for controlling regeneration of a DPF comprises a favorable-condition-based control section (), a regular control section (), and a regeneration termination control section (). Section () initiates regeneration when the actual soot loading of the DPF becomes sufficiently large to mandate initiation of regeneration. Section () initiates regeneration when the actual soot loading reaches an amount less than the amount at which section () mandates regeneration, provided that selected engine operating conditions disclose conditions favorable for regeneration. Section () terminates regeneration when soot loading is reduced to some minimum amount or when conditions for continuing regeneration become unfavorable. By burning trapped soot during favorable conditions, the mandatory regeneration is postponed. This can lower the average amount of trapped soot in the CDPF, thereby lowering the average back-pressure on the engine.