Abstract: An element which generates a magnetic field for fastening a compressor wheel to a turboshaft of an exhaust-gas turbocharger, has a basic body and a thread. In order to specify an element which generates a magnetic field for fastening a compressor wheel to a turboshaft, which element generates as high a magnetic field strength as possible and nevertheless can absorb without damage the forces and the tightening torques which occur during fastening of the compressor wheel to the turboshaft, the entire basic body includes a magnetic material and a sleeve is arranged in the basic body, which sleeve includes a non-magnetic material and has the thread which can be screwed to a mating thread of the turboshaft.

Abstract: The invention relates to an active sensor element for recording the speed of an exhaust gas turbocharger, comprising a suppressor circuit which has at least one diode. In order to specify a device for temperature measurement at the turbocharger and in particular at the turbocharger in the region of the active sensor, the current-voltage characteristics of the diode are evaluated for determining the temperature in the sensor element.

Abstract: A compressor casing for an exhaust gas turbocharger is disclosed. The exhaust gas turbocharger has a rotatable turboshaft, a compressor wheel mounted on the turboshaft, and a turbine wheel mounted on the turboshaft. The compressor casing includes a sensor for measuring a rotational speed of the turboshaft. The sensor is embedded in the compressor casing and forms an integral component of the compressor casing.

Abstract: A belt force measuring device has a measuring spring (12), of which the strain is a measure of the belt force. The measuring spring (12) is arranged and formed as a tension spring in such a way that, depending on the belt force, the spring extends between first and second mountings. A strain measuring structure (23), which is rigidly arranged on the measuring spring (12), is integrated in a housing (2) of a belt buckle (1).

Abstract: Presented is an exhaust gas turbocharger. The turbocharger includes a compressor, a turbine, a compressor wheel mounted rotatably in the compressor, a rotatably mounted turboshaft, a device for detecting the rotational speed of the turboshaft, an element for varying a magnetic field, and a turbine wheel mounted rotatably in the turbine. The compressor wheel is mechanically connected to the turbine wheel via the turboshaft. The device for detecting the rotational speed includes the element for varying the magnetic field which is disposed on or in the turboshaft in the region between the compressor wheel and the turbine wheel. The variation of the magnetic field occurring as a function of the rotation of the turboshaft. The turbocharger further includes a sensor element, which detects the variation of the magnetic field and converts it into signals which can be evaluated electrically, arranged in proximity to the element for varying the magnetic field.

Abstract: An exhaust fume turbocharger for an internal combustion engine comprises a compressor and a turbine. A compressor wheel is rotatably mounted in the compressor and a turbine wheel is rotatably mounted in the turbine. The compressor wheel is mechanically connected to the turbine wheel by a rotatably mounted turboshaft. The compressor wheel is connected to the turboshaft by a fastening element and the exhaust fume turbocharger comprises a system for sensing the rotational speed of the turboshaft. The arrangement for sensing the rotational speed is arranged at the end of the turboshaft on the side of the compressor with an element for varying a magnetic field between the compressor wheel and the fastening element. The magnetic field is varied depending on the rotation of the turboshaft and a sensor element is arranged in the proximity of the element for varying the magnetic field for sensing the variation in the magnetic field and converting it into electrical signals.

Abstract: A force sensor for an electromechanical brake has a closed ring having a C-shaped profile that is open inwardly. Force is introduced along the inner circumference of the ring.

Abstract: A particle filter is monitored with a sequence of steps. A pressure loss at the particle filter is measured. The volumetric flow of exhaust gas is acquired and a filter load value is calculated from the pressure loss and the volumetric flow of exhaust gas. The filter load value is recorded as a function of a drive parameter and the filter load value is differentiated with respect to the drive parameter. The differentiation of the filter load allows a particle filter breakdown to be deduced when the differentiation is less than or equal to zero.

Abstract: Particle concentration is monitored in a gas stream, in particular rust particle concentration in the exhaust gas stream of an internal combustion engine. A sensor in the gas stream collects the particles that are monitored. The sensor is integrated as a capacitive element in an electromagnetic resonant circuit excited by an alternating voltage. The sensor includes a non-conducting base body and two electrodes spaced apart from each other. A characteristic value of the resonant circuit varying on the basis of the particle load of the sensor is determined as a reference value when the sensor is unloaded. The change in the characteristic value due to the particle load is determined relative to the reference value.

Abstract: The invention relates to an exhaust-gas turbocharger (1) for an internal combustion engine, said turbocharger comprising a device (26) for detecting the speed of the turbocharger shaft (5). The device (26) for detecting the speed comprises an element (21) for varying a magnetic field, which is located on and/or in the end (10) of the turbocharger shaft (5) that is on the compressor side, said variation of the magnetic field (25) taking place in accordance with the rotation of the turbocharger shaft (5). A sensor element (19) is provided in the vicinity of the element (21) for varying the magnetic field (25), said sensor element detecting the variation in the magnetic field and converting it into electric signals that can be evaluated.

Abstract: A belt force measuring device has a measuring spring, the expansion of which is a measure of the belt force. It further has a detector which is arranged on the measuring spring rigidly to a first bearing of the measuring spring. Furthermore, a sensor element is provided which is arranged on the measuring spring rigidly to a second bearing of the measuring spring. The measuring spring is arranged and formed such that it expands between the first and second bearing as a function of the belt force.

Abstract: Seatbelt lock casing with an integrated force-sensing device for measuring a belt tensile force acting on a seatbelt lock, containing a moving anchor that protrudes through an opening formed in a front wall of the casing and has a stop that restricts the movement of the anchor from the casing against an elastic support operating between the casing and anchor, and a sensor attached to the casing for registering the position of the moving anchor.

Abstract: Force-sensing unit for measuring a belt tensile force acting on a seatbelt lock, including a casing with an opening formed in a front side, and further including a moving anchor which is located in the casing and which protrudes through the opening and which has a stop that restricts the movement of the lug from the casing against an elastic support, and a sensor for registering the position of the moving anchor, whereby the casing can be attached between the seatbelt lock and an anchorage, characterized in that the elastic support is provided by a torsion spring supported on the anchor and on the casing on both sides of the anchor.

Abstract: A particle filter is monitored with a sequence of steps. A pressure loss at the particle filter is measured. The volumetric flow of exhaust gas is acquired and a filter load value is calculated from the pressure loss and the volumetric flow of exhaust gas. The filter load value is recorded as a function of a drive parameter and the filter load value is differentiated with respect to the drive parameter. The differentiation of the filter load allows a particle filter breakdown to be deduced when the differentiation is less than or equal to zero.

Abstract: The invention relates to a force sensor for an electromechanical brake. The force sensor comprises a closed ring having a C-shaped profile that is open inward. Force is introduced along the inner circumference of the ring.

Abstract: A pressure measurement unit in a pressure measurement system has a housing section (8) which has an internal space (9) with internal surfaces, and a ceramic unit (1) which has a pressure diaphragm (2) and at least one external surface, with the ceramic unit (1) held in the press fit in the housing section (8) and with radial holding stresses operating between the external surface of the ceramic unit (1) and the internal surfaces of the housing section (8). A method for manufacturing a corresponding pressure measurement unit with a housing section (8) and with a ceramic unit (1) which has a pressure diaphragm (2) and at least one external surface, with holding stresses built up between the housing section (8) and the ceramic unit (1), which hold the ceramic unit (1) in the internal space of the housing section (8).

Abstract: A belt force measuring device has a measuring spring (12), the strain of which is a measure of the belt force. The measuring spring (12) is arranged and formed as a tension spring in such a way that, depending on the belt force, it extends between the first and second mountings. It also has a strain measuring structure (23), which is rigidly arranged on the measuring spring (12), the measuring spring (12) being arranged such that it is integrated in a housing (2) of a belt buckle (1).

Abstract: A belt force measuring device has a measuring spring, the expansion of which is a measure of the belt force. It further has a detector which is arranged on the measuring spring rigidly to a first bearing of the measuring spring. Furthermore, a sensor element is provided which is arranged on the measuring spring rigidly to a second bearing of the measuring spring. The measuring spring is arranged and formed such that it expands between the first and second bearing as a function of the belt force.

Abstract: Seatbelt lock casing with an integrated force-sensing device for measuring a belt tensile force acting on a seat-belt lock, containing a moving anchor that protrudes through an opening formed in a front wall of the casing and has a stop that restricts the movement of the anchor from the casing against an elastic support operating between the casing and anchor, and a sensor attached to the casing for registering the position of the moving anchor.

Abstract: Force-sensing unit for measuring a belt tensile force acting on a seatbelt lock, including a casing with an opening formed in a front side, and further including a moving anchor which is located in the casing and which protrudes through the opening and which has a stop that restricts the movement of the lug from the casing against an elastic support, and a sensor for registering the position of the moving anchor, whereby the casing can be attached between the seatbelt lock and an anchorage, characterized in that the elastic support is provided by a torsion spring supported on the anchor and on the casing on both sides of the anchor.