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. 20, 2014
Filed:
Nov. 18, 2009
Yoichiro Goya, Susono, JP;
Yoichiro Goya, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
For an A/F sensorequipped with a sensor element, a coverthat covers the sensor element, and a heaterthat raises the temperature of the sensor elementand provided to an exhaust system of an engine, an ECUA has timing estimation means for estimating a timing of vaporizing and disappearing of cover condensed water that is condensed water generated inside and outside of the coverand determining whether an estimated timing has come, and heater control means for supplying a current to the heaterso that the temperature of the sensor elementbecomes equal to a temperature at which the sensor elementdoes not crack even if the sensor elementis moistened until the estimated timing estimated by the timing estimation means at which the cover condensed water vaporizes and disappears comes.