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. 23, 2007
Filed:
Dec. 02, 2003
Gopichandra Surnilla, West Bloomfield, MI (US);
Harendra S. Gandhi, West Bloomfield, MI (US);
Christian T. Goralski, Jr., Ypsilanti, MI (US);
Robert W. Mccabe, Lathrup Village, MI (US);
George Graham, Ann Arbor, MI (US);
Hungwen Jen, Troy, MI (US);
Gopichandra Surnilla, West Bloomfield, MI (US);
Harendra S. Gandhi, West Bloomfield, MI (US);
Christian T. Goralski, Jr., Ypsilanti, MI (US);
Robert W. McCabe, Lathrup Village, MI (US);
George Graham, Ann Arbor, MI (US);
Hungwen Jen, Troy, MI (US);
Ford Global Technologies LLC, Dearborn, MI (US);
Abstract
A system is described for improving engine and vehicle performance by considering the effects of exhaust conditions on catalyst particle growth. Specifically, engine operation is adjusted to reduce operating in such conditions, and a diagnostic routine is described for determining the effects of any operation that can cause such particle growth. Further, routines are described for controlling various vehicle conditions, such as deceleration fuel shut-off, to reduce effects of the particle growth on emission performance.