Electronic control system for an internal combustion engine

US4582031A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Helmut Janetzke · Hemmingen, DE
• Helmut Kauff · Schwieberdingen, DE
• Alfred Schulz · Oberriexingen, DE

Key dates

• Filing date: Oct 14, 1983
• Grant date: Apr 15, 1986
• Expiry date: Oct 14, 2003

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2200/704
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Disclosed is an electronic system for computing control magnitudes for a control system of an internal combustion engine. The control magnitudes are derived by computation from measured auxiliary parameters. The control magnitude such as suction pipe pressure is computed from its relationship with the flow rate of air mass, or throttle valve position and rotary speed. Atmospheric pressure is computed from the air mass flow, rotary speed and throttle valve position or from the cross-section of the channel by-passing the throttle valve and from the supplied air mass. The computation arrangement can be either analog or digital.