Patent · US Active

Method for operating a drive device and corresponding drive device

US9909474B2 · kind B2 · utility

0Cited by

5References

7Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Michael Görgen · Kall, DE
Markus Sonner · Bad Birnbach, DE
Felix Knackstedt · Ingolstadt, DE

Key dates

Filing date	Dec 15, 2015
Grant date	Mar 6, 2018
Priority date	—
Expiry date	Jan 10, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating a drive device having an internal combustion engine and an exhaust gas purification device for exhaust gas of the internal combustion engine includes performing an oxygen removal operation for removing oxygen from the exhaust gas purification device, wherein the oxygen removal operation includes at least one of operating the internal combustion engine sub-stoichiometrically and introducing additional fuel into the exhaust gas, wherein the oxygen removal operation is performed until a lambda value detected by a lambda probe arranged in the exhaust gas purification device reaches a defined lambda threshold value.

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