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. 20, 2001
Filed:
Aug. 14, 2000
Jing Sun, Bloomfield Township, MI (US);
Ilya Vladimir Kolmanovsky, Ypsilanti, MI (US);
Jeffrey Arthur Cook, Dearborn, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A method of modeling and controlling a direct injection stratified charge (DISC) engine coupled to a lean NOx trap that is periodically purged. The method comprises the steps of receiving as inputs a plurality of engine operating parameters and generating an indicated engine torque value, feedgas emission values, and an exhaust gas temperature value. Each of the output values is generated in accordance with a respective hybrid DISC engine model including an engine torque model, a feedgas emissions model, and an exhaust gas temperature model. The feedgas emissions model and exhaust gas temperature models further include submodels for generating output values as a function of either stratified or homogeneous engine operation.