Control system for an internal combustion engine

US5020501A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Chi-Thuan Cao · Ditzingen, DE
• Andreas Erban · Bietigheim-Bissingen, DE
• Helmut Janetzke · Hemmingen, DE
• Henning Cordes · Eberdingen, DE
• Alfred Schulz · Oberriexingen, DE
• Wolfgang Matuschek · Oberriexingen, DE

Key dates

• Filing date: Jul 12, 1990
• Grant date: Jun 4, 1991
• Expiry date: Jul 12, 2010

Classification

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

Abstract

The invention is directed to a control system for an internal combustion engine with reference to air throughput, rotational speed and lambda. In this control system, a decoupling device is provided between open loop and closed loop control signals which act with different speeds. An ignition signal is influenced in dependence upon a lambda-dependent signal via at least one dead time member. In this way, phases having unfavorable opposing influence on control branches of different reaction durations are reduced.