Method and apparatus for controlling the torque of an internal combustion engine

US4370904A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Alfred Muller · Krefeld, DE
• Manfred Schwab · Gerlingen, DE
• Walter Stroh · Cleebronn, DE

Key dates

• Filing date: May 7, 1981
• Grant date: Feb 1, 1983
• Expiry date: May 7, 2001

Classification

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

Abstract

The signal initiating a reduction of engine torque during gear shift is derived from a monitoring of the engine speed. Specifically, the decrease in torque is initiated when engine deceleration, as determined by the negative speed gradient, exceeds a predetermined value. The torque decrease can, as preferred, take place only if a gear shift occurs, or it may take place independent of gear shift in which case high decelerations caused, for example, by rapid application of the brakes, also cause the decrease.