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:
Apr. 06, 2004
Filed:
Apr. 12, 2002
Alexander Yuri Gopp, Ann Arbor, MI (US);
John Ottavio Michelini, Sterling Heights, MI (US);
Ford Global Technologies LLC, Dearborn, MI (US);
Abstract
A system and method for controlling a multi-cylinder internal combustion engine having at least one automatically controllable airflow actuator and an exhaust gas recirculation (EGR) system including an EGR valve include determining a desired manifold pressure based at least in part on position of the automatically controllable airflow actuator and controlling the EGR valve such that a measured manifold pressure approaches the desired manifold pressure. In one embodiment, the automatically controllable airflow actuators include a charge motion control valve and a variable cam timing device. In other embodiments, the automatically controllable airflow actuators may include variable valve lift devices, variable valve timing devices, or any other device that affects the residual exhaust gases within the cylinders.