Power enrichment scheduling for coordinated torque control system

US7698048B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Jaehak Jung · Pittsford, US
• Louis A. Avallone · Milford, US
• Christopher E. Whitney · Commerce, US
• Leonard G. Wozniak · Ann Arbor, US
• Klaus Pochner · Gerolzhofen, DE
• Jeffrey M. Kaiser · Cadillac, US

Key dates

• Filing date: Aug 1, 2008
• Grant date: Apr 13, 2010
• Expiry date: Oct 1, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/62
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A control system for an engine of a vehicle includes a requested torque module that determines a first requested torque based on an accelerator pedal position and a current engine torque output capacity. An accelerator effective position module determines an accelerator effective position based on a requested driver axle torque request signal. A power enrichment (PE) module enables a PE mode to provide a richer than stoichiometric fuel equivalence ratio based on the first requested torque and the accelerator effective position.