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:
Oct. 11, 1994
Filed:
Aug. 19, 1993
Applicant:
Inventors:
William H Pettit, Rochester, NY (US);
Daniel F Kabasin, Rochester, NY (US);
Donald D Stoltman, Henrietta, NY (US);
Kenneth J Dauer, Avon, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 60283 ; 60286 ; 60303 ;
Abstract
Control of a fuel quantity and an air quantity delivered to an exhaust gas heater is provided by determining a desired heater air quantity and a desired heater air/fuel ratio both of which may vary over multiple control states, by commanding an air rate in accord with the desired heater air quantity, by adjusting the commanded air quantity in accord with a sensed actual air quantity, and by commanding a fuel quantity in accord with the desired heater air/fuel ratio and either the desired heater air quantity or the sensed actual air quantity.