Method for controlling catalytic converter heat losses during coasting shutoff

US6510685B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Martin-Peter Bolz · Laufenburg (Baden), DE
• Udo Sieber · Bietigheim, DE

Key dates

• Filing date: Jan 5, 2001
• Grant date: Jan 28, 2003
• Expiry date: Jan 5, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

The invention is directed to a method of controlling catalytic converter heat losses during coasting shutoff in an internal combustion engine which includes a valve and a valve positioner having an adjustable stroke set point, and a catalytic converter. In the method, the stroke set point is fixed as a function of a temperature of the catalytic converter.