Determination of diesel particulate filter load under both transient and steady state drive cycles

US8051645B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Gopal Krishna Chamarthi · Farmington Hills, US
• Edwin Allen Krenz · Canton, US
• David Chester Waskiewicz · Hamburg, US
• Peter Mitchell Lyon · Birmingham, US
• Bradley Dane Gresens · Canton, US
• Norman Hiam Opolsky · Beverly Hills, US
• Michiel J. Van Nieuwstadt · Ann Arbor, US

Key dates

• Filing date: Apr 3, 2008
• Grant date: Nov 8, 2011
• Expiry date: Jul 10, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

Methods for updating the PF soot load of an engine are provided herein. In one example, a soot storage estimate is based on processing operations that occur at different timings. The method can improve soot estimation during some conditions.