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:
May. 28, 1996
Filed:
Dec. 09, 1994
Hsien C Pao, Plymouth, MI (US);
Peter J Maloney, Dearborn, MI (US);
Roger L Huffmaster, Canton, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A powertrain controller controls the burned gas recycling rate of an engine as a function of a desired burned gas recycling rate and an actual burned gas recycling rate. The powertrain controller generates a tractive effort request value which is indicative of a force desired by the driver at the wheels of the vehicle. An engine load request value is generated as a function of the tractive effort request value and vehicle speed and is used, along with an actual load value, which is indicative of actual engine load, to generate the desired burned gas recycling rate. The tractive effort request value and other vehicle powertrain control variables are generated according to an optimization process. The burned gas recycling system of the engine may take the form of a Delta Pressure Feedback (DPFE) Exhaust Gas Recirculation (EGR) system or a variable position camshaft system.