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:
Jan. 29, 2013
Filed:
Jan. 08, 2009
Jun Hasegawa, Komaki, JP;
Jun Hasegawa, Komaki, JP;
Denso Corporation, Kariya, JP;
Abstract
A reference heater energization delay time is established according to an engine conditions (shift range, cooling water temperature, intake-air temperature, ambient temperature, and oil temperature) during starting period. An extension delay time is established according to an engine condition after starting period. A final heater energization delay time is established by adding the extension delay time to the reference heater energization delay time. Until an elapsed time after starting period of engine reaches the final heater energization delay time, an energization of a heater of an exhaust gas sensor is inhibited. When the elapsed time after starting period of engine reaches the final heater energization delay time, the energization of the heater is started to heat a sensor element.