Regulation for a gas engine

US4843558A · kind A · utility

Assignees

• Daimler-Benz AG · DE
• Atlas Fahrzeugtechnik GmbH · DE

Inventors

• Horst Bergmann · Walldürn, DE
• Helmut Daudel · Schorndorf, DE
• Burkhard Brandner · Werdohl, DE
• Klemens Klueppel · Neuenrade, DE

Key dates

• Filing date: Jun 29, 1987
• Grant date: Jun 27, 1989
• Expiry date: Jun 29, 2007

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B1/04
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A regulation for a gas engine with a rotational speed probe for the crankshaft rotational speed, with a rotational speed-load-ignition angle-performance graph memory read out during each crankshaft rotation, with an ignition pulse generator controlled by the performance graph memory, with a lambda-probe, with a load probe, with a vacuum-controlled gas pressure adjusting device for the propulsion gas and with a flow-mixing device for the propulsion gas and the air. The invention provides a regulation for a gas engine which offers a full utilization of the possibilities of the gas engine above all in lean operation and in the partial load range. A rotational speed-load-lambda-performance graph (36) is provided for producing lambda-desired values. The lambda-desired values readied by the rotational speed-load-lambda-performance graph (36) are compared with the lambda-actual values under formation of a lambda difference value. For the adaptation of the ignition angle to the respective lambda actual value a lambda-difference value-load-ignition angle correction value performance graph (29) produces an ignition angle correction value which is added to the base ignition angle value of the…