Torque based fuel cut-off

US7526375B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Kenneth J. Buslepp · Utica, US
• Louis A. Avallone · Milford, US
• Stuart R. Smith · Howell, US
• Donovan L. Dibble · Utica, US

Key dates

• Filing date: Mar 12, 2007
• Grant date: Apr 28, 2009
• Expiry date: Jul 12, 2027

Classification

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

Abstract

An engine control system is provided. The system includes: an engine torque module that estimates torque output based on charge energy; and a cylinder mode module that controls fuel cut-off and adjusts spark timing to the engine based on the torque output.