Method and device for cylinder recognition in an internal combustion engine

US6006726A · kind A · utility

Assignee

• Vogt Electronic AG · DE

Inventors

• Udo Mai · Hauzenberg, DE
• Ekkehard Kollmann · Passau, DE
• Roman Schichl · Passau, DE

Key dates

• Filing date: Feb 6, 1998
• Grant date: Dec 28, 1999
• Expiry date: Feb 6, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02P7/0775
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The present invention provides a device and a method for cylinder sensing in an internal combustion engine. The device according to the invention has a crankshaft sensor device for detecting a crank angle and a predetermined crankshaft position, and outputting corresponding crankshaft signals; an ignition device for igniting the respective cylinder of the internal combustion engine by generating corresponding high-voltage pulses for corresponding control signals, and a control device for receiving the crankshaft signals and outputting the control signals to the ignition device as a function of at least the crankshaft signals, with the control device being so designed that in a cylinder sensing phase, while receiving a crankshaft signal corresponding to a predetermined crankshaft position, it outputs a control signal to generate a high-voltage pulse with a predetermined amplitude that can be reached in at least one specific cylinder; an ignition detection device for determining whether and/or at what ignition voltage the specific cylinder was ignited by the high-voltage pulse and outputting a corresponding ignition detection signal; and a cylinder sensing device for determining whet…