Abstract: In a method for the detection of local displacements and rotations, a sum signal and additionally a difference signal are formed from two separately generated signals of two transducer elements (W1, W2), which are spaced from each other, and subsequently the formed sum signal and the formed difference signal are OR-operated. A device for doubling the local frequency of moving incremental scales comprises an encoder (1a, 1b, 1c), a magnetically sensitive transducer (9, 13), and a signal conditioning stage (6a, 6b) electrically connected thereto. The transducer comprises at least two sensorially active functional groups synchronously using sensorially active groups or sub-groups (W1, W2) which are locally offset in relation to each other by a local phase ? in order to scan the moving scale, and the functional groups comprise means enabling at least two independent partial signals S1=V*sin(?t) and S2=?V*sin(?t)+?) to be produced.

Abstract: The present invention relates to a system for reliably transmitting the position of a control element to an electronic processing unit by way of electric signal lines, wherein the position signal is transmitted by way of several signal channels, and use thereof in a motor vehicle brake system. The present invention further describes a position transmitter for transmitting position signals with a magnetic encoder which is displaceable by a control element in relation to a magnetic transformer, wherein the magnetic transformer(s) along with an integrated electronic signal-conditioning circuit are arranged in an electronic sensor subassembly, as well as a receiving device for receiving a position signal comprising several processing channels for processing the position signals of the position transmitter.

Abstract: The present invention relates to a system for reliably transmitting the position of a control element to an electronic processing unit by way of electric signal lines, wherein the position signal is transmitted by way of several signal channels, and use thereof in a motor vehicle brake system. The present invention further describes a position transmitter for transmitting position signals with a magnetic encoder which is displaceable by a control element in relation to a magnetic transformer, wherein the magnetic transformer(s) along with an integrated electronic signal-conditioning circuit are arranged in an electronic sensor subassembly, as well as a receiving device for receiving a position signal comprising several processing channels for processing the position signals of the position transmitter.

Abstract: The pressure in a motor vehicle tire can be determined by means of a ‘wheel-independent’ device (1) that is in a largely rigid manner connected mechanically to an element (2) of the vehicle body (3, 14) oscillating with the motor vehicle wheel (4). In order to determine the—preferably absolute—tire pressure by combining the evaluation of rotational speed data and axle frequency analysis, said device (1) includes a signal pre-processing element (6) provided with electronic components for processing the sensor signals, said element being connected to a magnetic sensor element (7) and an acceleration sensor element (8) or to a combined magnetic/acceleration sensor element (5) by means of an electrically conductive element connection (9), wherein the magnetic sensor element (7) or the magnetic/acceleration sensor element (5) is operatively connected to a magnetic encoder (16) arranged on the wheel side.

Abstract: The present invention relates to an arrangement comprising a wheel speed sensor (1) and a control device (ECU), wherein the wheel speed sensor is connected to the control device by way of a data interface (k1, k2, k3, k4), wherein the wheel speed sensor includes means for sending rotational speed information in signal channels (t2 . . . t10) and each piece of information is associated with a signal channel and/or a fixed number of signal channels. Further, the wheel speed sensor comprises switch-over means (10, 11) enabling modification of the allocation of the additional information to the available channels by mode switch-over.

Abstract: The present invention relates to a system for transmitting tire condition variables from a transmission device mounted on a motor vehicle to an electronic evaluating or control unit arranged in the area of the vehicle body, which is detachably fastened to a motor vehicle wheel described hereinbelow for providing an electromechanical compound arrangement.

Abstract: The present invention relates to a linear distance sensor for motor vehicles which comprises a displaceable element and a stator. The displaceable element includes a magnetic encoder. Sensor modules that operate according to the AMR principle, GMR principle, or Hall principle are linked stationarily to the stator. The displaceable element is guided by way of a bearing that is connected to the stator and embraces and axially guides the displaceable element. The sensor module(s) is/are linked stationarily to the stator. The field-generating means is/are positively connected to the displaceable element along the longitudinal axis of the displaceable element. The present invention further relates to the use of the linear distance sensor for measuring the pedal or lever position in an actuating device for brakes of motor vehicles.

Abstract: The invention discloses an electrohydraulic pressure control device (30) with integrated pressure sensors (16) for sensing the pressure of a fluid in pressure lines (34), wherein several pressure transducers (16) are arranged in a hollow space (10), each comprising a pressure metering diaphragm (32) and an electrically passive transducer (33), and the transducer does not comprise a device for calibration of the electric transducer signal.

Abstract: The present invention relates to an active magnetic field sensor, in particular a wheel bearing sensor unit, comprising at least one magnetic sensor element (10, 21, 36) for converting a temporally periodic magnetic field into a temporally periodic electric sensor signal at signal outputs (37, 31) and an electronic signal-evaluating circuit, the said magnetic field sensor being electrically fed by way of a sensor interface, wherein an active electric processing of periodic signals (38, 39) of the magnetic sensor element is performed in two or more separate signal channels of the evaluating circuit respectively associated with the sensor signals.

Abstract: The present invention describes an active magnetic sensor, in particular for detecting the rotational behavior of a wheel, comprising a magneto-electric transducer (2) that is electrically connected to a modulator (5), a current source subassembly (4) controlling the signal current output at the sensor output (k3, k4), said sensor being characterized by an undervoltage monitoring circuit (10) which monitors the electric signal prevailing at sensor output (k3, k4) with respect to whether a voltage value falls below a first predetermined threshold voltage (VU) and which controls the signal current output at sensor output (k3, k4) in dependence on the result of this monitoring action by influencing the current source sub-assembly (4).

Abstract: The present invention relates to an automotive vehicle control system, preferably comprising a control logic with at least two control functions, such as ABS and YTC functions, with a tire sensor (tire wall torsion sensor or SWT), i.e., with at least one pick-up for measuring data fitted stationarily on the vehicle body, e.g. a spring strut of a vehicle wheel, and cooperating with at least one encoder applied to the tire wall and co-rotating with the wheel or tire, and with at least one conventional rotational speed sensor that is mounted on the wheel, for example, on the wheel bearing, and includes a measuring data emitter and a pick-up for measuring data, wherein the output information or output signals of the tire sensor and the at least one conventional sensor are correlated and evaluated in an electronic evaluating circuit of the control system to determine vehicle condition variables by means of forces that act on the individual wheels and tires.

Abstract: System, Position Transmitter and a Receiving Device for Reliably Transmitting the Position of a Control Element, and the Use Thereof.

Abstract: The present invention describes a sensor assembly for detecting movements, wherein a sensor signal is produced in an active sensor (1) by an encoder (E) acted upon by the movement, and which includes a first device (2, 3, 4, 5) that permits converting the sensor signal, along with at least one additional information, into an output signal which can be transmitted to an evaluating device, and which is in particular characterized in that a second device (1a) is provided by which a signal voltage that depends on an air slot (d) between the active sensor (1) and the encoder (E) is detected and sent to the first device (2, 3, 4, 5) for transmission as additional information.

Abstract: The present invention relates to a system for detecting safety-critical measured quantities, in particular yaw rates and/or acceleration data in automotive vehicles, comprising at least two independent measuring channels (11, 12) with sensors (YR1, YR2, AX, AY) that are independent of one another and elements for verifying a malfunction or a failure of the measuring channels (5, 8). The first measuring channel (11) and the additional measuring channel(s) (12) are operated in hot redundancy employing sensors of the similar type but not exactly identical in such a manner that the sensors are operated in parallel and without restriction. This invention also relates to a device consisting of a sealed housing (2) with a plug (9), and the aforementioned system is accommodated in the sealed housing.

Abstract: The present invention relates to a method for checking or determining the installation air slot between an active sensor and an encoder, wherein the maximum size of the air slot (maximum air slot) which still ensures trouble-free operation of the sensor depends on the level of the supply voltage of the sensor at least within a range of said supply voltage, and which is more particularly characterized by the following method steps: reducing the supply voltage of the sensor to at least one value by which the maximum air slot is each time decreased by a desired test measure, and comparing the at least one test measure with a desired difference between the maximum air slot and the existing air slot by sensing a variation of the sensor output signal by the reduction of the supply voltage, as well as evaluating the comparison result by signaling and/or storing. A corresponding device is also described.

Abstract: The present invention relates to a linear distance sensor for motor vehicles which comprises a displaceable element (4, 5, 7) and a stator (1, 2, 3). The displaceable element includes a magnetic encoder. Sensor modules that operate according to the AMR principle, GMR principle, or Hall principle are linked stationarily to the stator. The displaceable element is guided by way of a bearing (11) that is connected to the stator and embraces and axially guides the displaceable element. The sensor module(s) is/are linked stationarily to the stator. The field-generating means is/are positively connected to the displaceable element along the longitudinal axis of the displaceable element.

Abstract: An arrangement for sensing the rotational speeds of a wheel or any other rotating member includes a sensor module with a sensor element, a controllable current source with a modulator and a signal conditioning and evaluating circuit. The modulator controls the current source in response to the signals of the sensor element and/or external signals and, as an output signal of the sensor module, delivers a current signal representative of the rotational behavior with status or additional signals superposed on the current signal. The evaluating circuit of the sensor module includes at least two different signal-conditioning networks which, by way of a control network, in dependence on predetermined criteria or conditions, are connected between the sensor element and the modulator controlling the current source and take care of signal conditioning.

Abstract: The invention discloses a system, preferably for influencing the performance of a motor vehicle, comprising a sensor unit with an electric-mechanical transducer and a mechanical-electric transducer with signal recording amplifier, wherein such sensor unit is connected to an A/D signal converter by way of an output and to a b/A signal converter of a digital signal processing unit by way of an input.

Abstract: The invention relates to an arrangement for the protection of electronic functional units and/or functional groups from disturbance quantities. The invention is characterized in that a division of the functional units and/or groups into partial units and/or groups with different sensitivity to the disturbance quantities is provided, in that a different screening from the disturbance quantities is assigned to the partial units and/or groups with different sensitivity to the disturbance quantities, and in that at least two of the screenings complete each other to a screening with a greater efficiency degree or factor, respectively.

Abstract: An arrangement for determining the rotational behavior of a rotating body or encoder (3) includes a sensor module (1) which comprises a sensor element (2; 2.1 to 2.4), a controllable power source (4) supplying a load-independent current representative of the rotational behavior, a modulator (5) that controls the power source (4) as a function of signals of the sensor element (2; 2.1 to 2.4) and of signals supplied by an external signal source through an additional port (K5), and an evaluating circuit (9). The sensor module (1) is magnetically coupled to the encoder (3). The output signal of the sensor module (1) is a signal, representative of the rotational behavior, with a superimposed status signal and/or additional signal.