Abstract: A method for operating an internal combustion engine enables an improved determination of a preferred position of a shaft of the internal combustion engine. The preferred position of the shaft is derived here on the basis of a signal characterizing a course of combustion of the internal combustion engine as a function of a phase relation determined between this signal and the preferred position of the shaft.

Abstract: A method is described for determining the angle-of-rotation position (?) of a shaft of an internal combustion engine, in particular a crank angle (?) of a crankshaft, information at least about incremental angles of rotation (??) of the shaft and running times (T) for each incremental angle of rotation (??) being detected on the basis of signals which indicate the rotation of the shaft and are spaced with intervals between them, and stored at least temporarily the instantaneous angle-of-rotation position (?) being determined in the period of time between two signals by extrapolation of the angle-of-rotation position (?) thus detected, taking into account at least one angular velocity ({overscore (?)}) and/or change in angular velocity (?{overscore (?)}) extrapolated from the stored information. In addition, a corresponding device is also described.

Abstract: A method for correcting the position of the angle marks of an incremental gear of a rotary speed sensor and/or rotary angle sensor of an internal combustion engine and to a system therefor.

Abstract: A device and a method for controlling an internal combustion engine, in particular a diesel engine, are described. Based on the signal from a structure-borne noise detector, parameters are determined which are used to regulate the internal combustion engine. At least one parameter is determined through an analysis that includes a filtering which selects at least two angular ranges.

Abstract: A method and a device for controlling an internal combustion engine are provided, in which method and device a deviation value is determined based on the comparison of a variable characterizing the combustion process in at least one cylinder with a corresponding setpoint value for this variable. Based on the determined deviation value, a first manipulated variable of a first actuator for influencing the start of activation is adjusted. Furthermore, based on the first manipulated variable, a second manipulated variable of a second actuator for influencing the air mass is adjusted.

Abstract: A method and device for controlling an internal combustion engine. A first variable is predefined on the basis of a signal of a combustion chamber pressure sensor or a structure-borne noise sensor. This first variable characterizes the combustion process in the combustion chamber of at least one cylinder of the engine. A second variable is read from a characteristics map; a manipulated variable for influencing the combustion process is predefinable from this second variable. The characteristics map and/or the second variable read from the characteristics map are adapted as a function of at least one feature which is determined on the basis of the first variable.

Abstract: A method is described for determining the angle-of-rotation position (?) of a shaft of an internal combustion engine, in particular a crank angle (?) of a crankshaft, information at least about incremental angles of rotation (??) of the shaft and running times (T) for each incremental angle of rotation (??) being detected on the basis of signals which indicate the rotation of the shaft and are spaced with intervals between them, and stored at least temporarily the instantaneous angle-of-rotation position (?) being determined in the period of time between two signals by extrapolation of the angle-of-rotation position (?) thus detected, taking into account at least one angular velocity ({overscore (?)}) and/or change in angular velocity (?{overscore (?)}) extrapolated from the stored information. In addition, a corresponding device is also described.

Abstract: A device and a method for controlling an internal combustion engine, where a first variable characterizing the pressure in the combustion chamber of at least one cylinder of the internal combustion engine is measured by at least one sensor. A second variable characterizing the energy released during the combustion is ascertained from the first variable. When a threshold value of the second variable is exceeded, a third variable characterizing the combustion process is detected.

Abstract: A method and device for controlling an internal combustion engine. A first variable is predefined on the basis of a signal of a combustion chamber pressure sensor or a structure-borne noise sensor. This first variable characterizes the combustion process in the combustion chamber of at least one cylinder of the engine. A second variable is read from a characteristics map; a manipulated variable for influencing the combustion process is predefinable from this second variable. The characteristics map and/or the second variable read from the characteristics map are adapted as a function of at least one feature which is determined on the basis of the first variable.

Abstract: A method and device for controlling an internal combustion engine in which a first variable characterizing the pressure in the combustion chamber of at least one cylinder in the internal combustion engine is detected by at least one sensor. A second variable is determined on the basis of the first variable. Features which are assigned to different partial injections are obtained by forming the difference within the second variable.

Abstract: A method and an apparatus for controlling an internal combustion engine are described. At least one sensor serves to detect a first variable that characterizes the pressure in the combustion chamber of at least one cylinder. A second variable, which characterizes the maximum value of the change and/or the location of the maximum value of the change, is determined on the basis of this first variable. This second variable serves to control operating parameters of the internal combustion engine in an open-loop and/or a closed-loop manner.

Abstract: A device and a method are described for controlling an internal combustion engine, in which a control deviation and a governor are allocated to each cylinder of the internal combustion engine, each governor preselecting a cylinder-specific triggering signal on the basis of the allocated control deviation. Cylinder-specific actual values are ascertained on the basis of a signal from a sensor arranged in the exhaust train and are compared to a setpoint value. Triggering signals for the cylinder-individual control of the fuel quantity and/or air quantity are preselected on the basis of the comparison.

Abstract: A method and an apparatus for controlling an internal combustion engine are described. At least one sensor serves to detect a first variable that characterizes the pressure in the combustion chamber of at least one cylinder. A second variable, which characterizes the maximum value of the change and/or the location of the maximum value of the change, is determined on the basis of this first variable. This second variable serves to control operating parameters of the internal combustion engine in an open-loop and/or a closed-loop manner.

Abstract: A device and a method are described for controlling an internal combustion engine, in which a control deviation and a governor are allocated to each cylinder of the internal combustion engine, each governor preselecting a cylinder-specific triggering signal on the basis of the allocated control deviation. Cylinder-specific actual values are ascertained on the basis of a signal from a sensor arranged in the exhaust train and are compared to a setpoint value. Triggering signals for the cylinder-individual control of the fuel quantity and/or air quantity are preselected on the basis of the comparison.

Abstract: The invention is an improvement to a high-frequency-shielded switchgear cabinet having a cabinet body which can be or is composed of wall elements and has at least one opening which can be closed by a cabinet door. Gaps formed in the cabinet body and between the cabinet body and door can be closed or sealed so as to be high-frequency-shielded by means of electrically and magnetically conductive sealing strips. In order to attain a corrosion-free switchgear cabinet which has a long service life and can be easily produced, the wall elements and cabinet door are made of aluminum-zinc-coated sheet metal and are provided at least in regions facing the gaps to be sealed without additional surface-protecting coverings. The sealing strips are directly connected to the untreated surface of the wall elements and/or cabinet door.