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:
Sep. 11, 2001
Filed:
Feb. 23, 2000
Mark J Poublon, Shelby Township, MI (US);
Kathryn A Wolfe, Sterling Heights, MI (US);
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Abstract
A method for controlling the temperature of a catalyst in a catalytic converter. The method includes the steps of calculating a stabilized catalyst temperature limit, determining a stabilized catalyst temperature without enrichment, comparing the stabilized catalyst temperature limit with the stabilized catalyst temperature without enrichment and enriching a fuel/air ratio to maintain a stabilized catalyst temperature at the stabilized catalyst temperature limit if the stabilized catalyst temperature without enrichment is greater than the stabilized catalyst temperature limit. A vehicle having a controller for controlling the enrichment of an air/fuel ratio to control the temperature of a catalyst in a catalytic converter is also provided.