Patent · US Expired

Method and apparatus for improving the quality of exhaust gas emissions from an internal combustion engine

US6192673A · kind A · utility

1Cited by

6References

6Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Christof Gross · Stuttgart, DE
Klaus Schmidt · Schwieberdingen, DE

Key dates

Filing date	Nov 3, 1998
Grant date	Feb 27, 2001
Priority date	—
Expiry date	Nov 3, 2018

Classification

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

Abstract

A method for improving the exhaust gas emissions of an internal combustion engine having an exhaust gas catalyst, wherein the exhaust gas catalyst is heated after starting the internal combustion engine. Regulation of the power output is performed by the generator or generators during the warm-up phase of the exhaust gas catalyst. The power output of the generator or generators is regulated such that this power output is reduced during a period of time until the exhaust gas catalyst has reached a specific minimum temperature.

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