Patent · US Active

Method for operating an electrically heatable catalyst

US10900400B2 · kind B2 · utility

1Cited by

3References

10Claims

0Family size

Assignee

VITESCO TECHNOLOGIES GMBH · DE

Inventors

Peter Hirth · Rösrath, DE
Thomas Härig · Eppstein, DE

Key dates

Filing date	Dec 11, 2017
Grant date	Jan 26, 2021
Priority date	—
Expiry date	Dec 11, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

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 TG1U and an upper limit temperature TG1O.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.