Robert Boschgmbh

Bernd Rapp

Sascha Joos

Uwe Maienberg

Thomas Mueller

Peter Kappelmann

Tobias Ernst

A method for regulating or controlling the temperature of a sheathed-element glow plug in a heating phase of the sheathed-element glow plug, where a temperature value is determined as a function of a resistance of the sheathed-element glow plug. To render possible the regulation or control of the temperature of the sheathed-element glow plug also during a transient temperature distribution within the sheathed-element glow plug, the resistance used for determining the temperature value during a transient thermal response within the sheathed-element glow plug is calculated with the aid of a physical model.

Method for regulating or controlling the temperature of a sheathed-element glow plug

A method for determining the temperature of a sheathed-element glow plug during operation in an internal combustion engine is described, in which a temperature-resistance reference correlation is determined. In order to reduce the tolerance range of a sheathed-element glow plug, after the sheathed-element glow plug has been installed in the internal combustion engine, a calibration step is carried out in which, with the aid of the temperature-resistance reference correlation determined prior to the installation of the sheathed-element glow plug in the internal combustion engine, a temperature-resistance correlation specific to the sheathed-element glow plug is ascertained, from which the temperature of the sheathed-element glow plug during operation of the sheathed-element glow plug in the internal combustion engine is determined.

Method and device for determining a temperature of a sheathed-element glow plug during operation in an internal combustion engine

In a method for ascertaining a temperature of a sheathed-element glow plug in an internal combustion engine, a temperature difference between the temperature of a glow plug heater inside the sheathed-element glow plug and a temperature at an arbitrary location on the sheathed-element glow plug is determined as a function of at least one operating parameter of the internal combustion engine and/or at least one operating parameter of the sheathed-element glow plug. The temperature of the sheathed-element glow plug is ascertained from a temperature value represented by a measured value, and from the determined temperature difference.

Method and device for ascertaining a temperature of a sheathed-element glow plug in an internal combustion engine

A pressure control for the program-controlled drive of at least one pressure actuating member influences the hydraulic constellation in a transmission via the pressure (p). The program-controlled drive takes place via changes of states (z; Z, Z, Z, Z, Z, Z, Z, Z) from current states (z(t)) to subsequent states (z(t+1)) and that the states (z; Z, Z, Z, Z, Z, Z, Z, Z) are all configurable without change of program. A method is provided for the program-controlled drive of at least one pressure actuating member.

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Hemmingen, Germany

Bernd Rapp