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. 19, 2016
Filed:
Nov. 25, 2011
Tatsuhiro Hashida, Susono, JP;
Hiroki Nishijima, Suntou-gun, JP;
Tatsuhiro Hashida, Susono, JP;
Hiroki Nishijima, Suntou-gun, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
Abstract
A control device for an internal combustion engine includes a SCR system disposed in an exhaust passage and a particulate matter sensor disposed downstream of the SCR system. The control device applies a particulate matter trapping voltage to the particulate matter sensor, and acquires an output of the particulate matter sensor at a first timing after the start of application of the particulate matter trapping voltage. The control device executes predetermined control in accordance with the output. If a second timing at which an integrated operating time period of the internal combustion engine in a predetermined operating state in which urea-related substances discharged to downstream of the SCR system increase reaches a reference time period after starting application of the particulate matter trapping voltage is earlier than the first timing, the control device stops the predetermined control.