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. 26, 2021
Filed:
Dec. 11, 2017
Cpt Group Gmbh, Hannover, DE;
Peter Hirth, Rösrath, DE;
Thomas Härig, Neunkirchen-Seelscheid, DE;
Vitesco Technologies GmbH, Hannover, DE;
Abstract
A method for operating an electrically heatable catalytic converter in an exhaust tract of an internal combustion engine having at least one honeycomb body through which an exhaust-gas stream can flow, and having at least one electrically heatable heating conductor positioned upstream of the honeycomb body in a throughflow direction of the exhaust gas includes: applying an electrical current to the heating conductor such that the heating conductor is electrically heated in a manner dependent on an ambient temperature around the heating conductor; and electrically heating the heating conductor such that a dwell time of a temperature of the heating conductor is bounded in a temperature range defined by a first lower limit temperature Tand an upper limit temperature T.