Method and arrangement for controlling an internal combustion engine

US5746176A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Eckart Damson · Stuttgart, DE
• Martin Klenk · Munich, DE
• Stefan Miller · Regensburg, DE

Key dates

• Filing date: Nov 12, 1996
• Grant date: May 5, 1998
• Expiry date: Nov 12, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2250/21
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method and an arrangement for controlling an internal combustion engine is suggested wherein, in at least a first operating range, a lean air/fuel mixture are pregiven and, for a power command from the driver (for example, in transient operating states or in the vicinity of the full load range) a switchover to a stoichiometric mixture takes place; during the transition, the torque change (caused by the change of the air/fuel ratio) is essentially compensated by correspondingly influencing the air supply to the engine.