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:
Jul. 16, 2013
Filed:
Feb. 08, 2011
Daniel B. Mastbergen, Loveland, CO (US);
Daniel B. Mastbergen, Loveland, CO (US);
Woodward, Inc., Fort Collins, CO (US);
Abstract
A regeneration control system for use with a diesel engine having a diesel particulate filter is provided. This regeneration control system utilizes a wide band oxygen sensor placed in the exhaust stream upstream of a regeneration device, as well as an engine speed sensor, to determine when to initiate the regeneration event, and for controlling the regeneration device to ensure proper regeneration of the diesel particulate filter. The after treatment controller utilizes the oxygen percentage signal to calculate or otherwise determine the percentage load at which the diesel engine is operating. This information along with the engine speed information allows the after treatment controller to calculate or otherwise determine exhaust parameters necessary for proper control of the regeneration device.