Borgwarner Ludwigsburg Gmbh

Beru Ag

Borgwarner Beru Systems Gmbh

Stefan Heinzelmann

Dirk Wüstenhagen

Frank Pechhold

Ganghua Ruan

Arno Marto

Ulrich Schönauer

Arun Sasikumar Sujatha

The invention relates to a method for generating an ion current which occurs as a direct current between a central electrode and one or more side electrodes of a spark plug of a spark ignition engine which is supplied repeatedly with an ignition voltage from an ignition voltage source, wherein the spark ignition engine is assigned an engine control unit, which, in an engine cycle, determines for each spark plug a target ignition point and/or an activation point for the ignition voltage source before the target ignition point, and a second voltage source is provided, which delivers a second voltage for the generation of the ion current, wherein the second voltage source lying in the engine cycle for a first time interval &#x394;t, which is shorter than the duration of the engine cycle, is connected to the electrodes of the spark plug, and wherein the ion current flowing as a result of the application of the second voltage to the electrodes of the spark plug takes a path which avoids the ignition voltage source.

Method and apparatus for generating an ion current between electrodes of a spark plug

A device for directing combustion anomalies of an internal combustion engine, comprising at least one power supply, at least one ion current amplifier, at least one signal filter, at least one ion current signal output, at least one ignition coil actuating electronic system, at least one ignition coil, at least one ion current adapter, and at least one ion current sensor.

Apparatus and method for the detection of knocking combustion

A pressure gauge glow plug for a diesel engine having a plug body, a heating element, and a pressure sensor, which is positioned under pretension between the heating element and the plug body in such a way that the pressure sensor experiences the pressure existing in the combustion chamber of the cylinder in which it is inserted. The heating element is positioned so that it may be slid in an axial direction in the plug body and transmits the pressure in the combustion chamber of the cylinder to the pressure sensor. The pressure sensor is positioned on a heating element support that is permanently bonded to the heating element in a cap that permanently bonded to the plug body. The heating element support and pressure sensor form a unit that has axial play in the interior of the cap.

Pressure gauge glow plug

Growing community of inventors

Talheim, Germany

Stefan Heinzelmann