Method for controlling spark for particulate filter regenerating

US8136505B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Helmut Hans Ruhland · Eschweiler, DE
• Moritz Klaus Springer · Hagen, DE
• Thomas Lorenz · Chesterfield, US
• Georg Louven · Neuwied, DE

Key dates

• Filing date: Dec 15, 2009
• Grant date: Mar 20, 2012
• Expiry date: Sep 22, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine spark is controlled such that soot held by a particulate filter may be oxidized even during low engine loads.