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:
Dec. 20, 2011
Filed:
Mar. 10, 2005
Applicants:
Hiroki Matsuoka, Susono, JP;
Yukihisa Yamamoto, Kariya, JP;
Inventors:
Hiroki Matsuoka, Susono, JP;
Yukihisa Yamamoto, Kariya, JP;
Assignees:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an exhaust purifying apparatus for an internal combustion engine on a vehicle, heating control is executed for supplying fuel to exhaust purification catalysts, thereby increasing the catalyst bed temperature. The heating control is suspended when the vehicle is determined to be driving downhill. Adverse influences due to deactivation of the exhaust purification catalysts during the heating control are reliably avoided.