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. 28, 2019
Filed:
Dec. 17, 2014
Continental Automotive Gmbh, Hannover, DE;
Paul Rodatz, Landshut, DE;
Michael Nienhoff, Regensburg, DE;
Ingo Koops, Regensburg, DE;
Tino Arlt, Regensburg, DE;
CONTINENTAL AUTOMOTIVE GMBH, Hanover, DE;
Abstract
The present disclosure describes a method for checking the signal of a temperature sensor in an exhaust-gas aftertreatment system for an internal combustion engine. The method may include: in an operating state which does not require heating of the reducing agent, activating the heating device for the purposes of checking the temperature sensor; determining whether the signal of the temperature sensor changes by a predefined expected value (ΔT) within a predefined time period (Δt); provisionally identifying the temperature sensor as fault-free if it does; deactivating the heating device; determining whether the signal of the temperature sensor reaches the start temperature (T) again within a time period (Δt); and confirming the temperature sensor as fault-free if it does.