Abstract: An inductive rotor position sensor device for detecting a rotor angular position of a rotor of an electric machine. The inductive rotor position sensor device includes a transmitter coil for generating electromagnetic waves and a receiver coil for detecting the electromagnetic waves generated by the transmitter coil and influenced by the rotor, and includes a processing unit, which is designed to activate the transmitter coil and to evaluate the electromagnetic waves detected by the receiver coil for determining the rotor angular position. The coils and the processing unit are situated on a shared circuit board. The coils are situated on a front side, and the processing unit is situated on a rear side of the circuit board which faces away from the front side.

Abstract: An optical system, in particular a LiDAR system, is provided, including at least one optical transmitter and at least one optical detector as well as a data processing unit. The optical transmitter is configured to emit a scanning light beam into the surroundings to scan same for surroundings objects. The optical detector is configured to receive a reflected light beam from the surroundings. The optical system is configured to a) detect and differentiate reflected light beams in at least two wavelength ranges and/or b) detect and differentiate reflected light beams having at least two polarization directions. The optical system is configured with the aid of the data processing unit to determine the surface properties of the scanned surroundings objects from the differences between the reflected light beams and the emitted scanning light beams.

Abstract: A device for determining a surface state of a roadway traveled or to be traveled by a vehicle, wherein the device comprises at least one light source for emitting primary light in the direction of the roadway traveled or to be traveled; at least one detector device for detecting secondary light that has been reflected and/or scattered by the roadway traveled or to be traveled; and an evaluation unit configured to emit, on the basis of the secondary light detected, the surface state of the roadway traveled or to be traveled by the vehicle. The essence of the invention is that the device furthermore comprises at least one first semiconductor chip, wherein at least two diodes are arranged on the at least one first semiconductor chip.

Abstract: A method for ascertaining a solid physical state of water on a roadway surface. The method encompasses: emitting light having at least two predefined wavelengths or predefined wavelength ranges which differ from one another; receiving a signal representing an intensity of a portion of the emitted light which is scattered back by the roadway surface to an optical sensor; ascertaining a solid physical state of water on a roadway surface based on a ratio of received values for light intensities of the respective predefined wavelengths or predefined wavelength ranges within the signal; classifying the solid physical form of water on the roadway surface by reconciling absolute values of the signal with a first predefined threshold value and/or by reconciling a signal-to-noise ratio of the signal with a second predefined threshold value; and using the ascertained information regarding the solid physical state of the water in the transportation device.

Abstract: A method for operating a sensor device for determining a road condition. Beams of at least one beam source are generated and emitted into a scanning area. Beams that are scattered or reflected back from the scanning area are ascertained by at least one detector and evaluated for determining the road condition with the aid of the control unit coupled to the detector. Temperature-dependent influences on at least one component of the sensor device are ascertained with the aid of at least one sensor. The temperature-dependent influences on the component of the sensor device are compensated for by a heating device and/or a cooling device and/or during the evaluation by the control unit. A control unit and a computer program are also described.

Abstract: A displacement sensor has a magnetic measuring transducer and at least two sensor units, which are arranged at different positions spaced from each other, the measuring transducer being slidably mounted relative to the sensor units. The measuring transducer is magnetized such that it has a magnetic field which rotates at least partially about an axis of rotation along the measuring transducer, and the axis of rotation of the magnetic field runs parallel to the sliding direction of the measuring transducer. The sensor units are designed to each sense two magnetic measured variables proportionally to the magnetic field strength, both measured variables being sensed by both sensor units.

Abstract: A sensor device includes an encoder element and at least two housing-affixed, magnetic field-sensitive sensors. The encoder element can be displaced in a direction of movement. The sensors are configured to determine a position and/or movement of the encoder element. The encoder element has a first magnet arrangement, which has differently aligned magnetic fields along the direction of movement of the encoder element, and a second magnet arrangement, which has differently aligned magnetic fields along the direction of movement of the encoder element.

Abstract: A path sensor includes: a sensing device; at least two sensor units assigned to the sensing device, wherein the sensing device can be displaced relative to the sensor units and has a property changing at least once from a starting value to an end value along the sensing device, which property can be detected by the sensor units; and an evaluation unit, which is designed to determine the position of the sensing device relative to the sensor units as a function of the property values detected by the sensor units. The sensing device has at least two sections following on from one another in the direction of movement, along which sections the property changes from at least the starting value to at least the end value, wherein the change has different gradients in the sections.

Abstract: An optical system, in particular a LiDAR system, is provided, including at least one optical transmitter and at least one optical detector as well as a data processing unit. The optical transmitter is configured to emit a scanning light beam into the surroundings to scan same for surroundings objects. The optical detector is configured to receive a reflected light beam from the surroundings. The optical system is configured to a) detect and differentiate reflected light beams in at least two wavelength ranges and/or b) detect and differentiate reflected light beams having at least two polarization directions. The optical system is configured with the aid of the data processing unit to determine the surface properties of the scanned surroundings objects from the differences between the reflected light beams and the emitted scanning light beams.

Abstract: The disclosure relates to a method for operating a rotational speed sensor of a motor vehicle with a signal encoder ring having a plurality of magnet elements arranged uniformly over its circumference with alternating orientation, and with a signal receiver having at least two sensor elements arranged uniformly apart from one another for sensing magnetic fields of the magnets. Information bits are generated based on magnetic field strengths detected by the sensor elements and made available as a rotational speed information signal. At a low rotational speed, an additional rotational speed information signal is generated and added to the rotational speed information signal. The additional signal comprises additional rotational speed pulses inserted between two normal rotational speed pulses. As a result, a plurality of rotational speed pulses are available per period of the encoder ring and a higher resolution of determination of the speed becomes possible.

Abstract: A displacement sensor has a magnetic measuring transducer and at least two sensor units, which are arranged at different positions spaced from each other, the measuring transducer being slidably mounted relative to the sensor units. The measuring transducer is magnetized such that it has a magnetic field which rotates at least partially about an axis of rotation along the measuring transducer, and the axis of rotation of the magnetic field runs parallel to the sliding direction of the measuring transducer. The sensor units are designed to each sense two magnetic measured variables proportionally to the magnetic field strength, both measured variables being sensed by both sensor units.

Abstract: A path sensor includes: a sensing device; at least two sensor units assigned to the sensing device, wherein the sensing device can be displaced relative to the sensor units and has a property changing at least once from a starting value to an end value along the sensing device, which property can be detected by the sensor units; and an evaluation unit, which is designed to determine the position of the sensing device relative to the sensor units as a function of the property values detected by the sensor units. The sensing device has at least two sections following on from one another in the direction of movement, along which sections the property changes from at least the starting value to at least the end value, wherein the change has different gradients in the sections.

Abstract: A sensor housing for a wheel-sensor device for a vehicle includes a first receiving aperture, a second receiving aperture, a first rotational-speed sensor, a rotary transducer, and a second rotational-speed sensor. The first sensor is configured to be inserted into the first aperture, and the sensor housing with the inserted first sensor is configured to be mounted on the vehicle. The rotary transducer is configured to co-rotate with a vehicle wheel and to trigger a change in a first physical quantity. The second sensor is configured to be inserted adjacent to the first sensor in the first aperture or in the second aperture, and the sensor housing, with the inserted first and second sensors, is configured to be mounted on the vehicle. The rotary transducer co-rotating with the rotating wheel triggers the change in the first physical quantity and a change in a second physical quantity.

Abstract: A sensor device includes an encoder element and at least two housing-affixed, magnetic field-sensitive sensors. The encoder element can be displaced in a direction of movement. The sensors are configured to determine a position and/or movement of the encoder element. The encoder element has a first magnet arrangement, which has differently aligned magnetic fields along the direction of movement of the encoder element, and a second magnet arrangement, which has differently aligned magnetic fields along the direction of movement of the encoder element.

Abstract: A device is configured to determine a relative deflection of two transmitter elements by a sensor element. The transmitter elements are arranged at the sensor element. The deflection of the transmitter elements with respect to one another at the sensor element can be determined based on a degree of overlap of conductive regions of the transmitter elements by the sensor element.

Abstract: The disclosure relates to a method for operating a rotational speed sensor of a motor vehicle with a signal encoder ring having a plurality of magnet elements arranged uniformly over its circumference with alternating orientation, and with a signal receiver having at least two sensor elements arranged uniformly apart from one another for sensing magnetic fields of the magnets. Information bits are generated based on magnetic field strengths detected by the sensor elements and made available as a rotational speed information signal. At a low rotational speed, an additional rotational speed information signal is generated and added to the rotational speed information signal. The additional signal comprises additional rotational speed pulses inserted between two normal rotational speed pulses. As a result, a plurality of rotational speed pulses are available per period of the encoder ring and a higher resolution of determination of the speed becomes possible.

Abstract: A sensor housing for a wheel-sensor device for a vehicle includes a first receiving aperture, a second receiving aperture, a first rotational-speed sensor, a rotary transducer, and a second rotational-speed sensor. The first sensor is configured to be inserted into the first aperture, and the sensor housing with the inserted first sensor is configured to be mounted on the vehicle. The rotary transducer is configured to co-rotate with a vehicle wheel and to trigger a change in a first physical quantity. The second sensor is configured to be inserted adjacent to the first sensor in the first aperture or in the second aperture, and the sensor housing, with the inserted first and second sensors, is configured to be mounted on the vehicle. The rotary transducer co-rotating with the rotating wheel triggers the change in the first physical quantity and a change in a second physical quantity.

Abstract: A device is configured to determine a relative deflection of two transmitter elements by a sensor element. The transmitter elements are arranged at the sensor element. The deflection of the transmitter elements with respect to one another at the sensor element can be determined based on a degree of overlap of conductive regions of the transmitter elements by the sensor element.

Abstract: A device for determining motion parameters includes a magnetic multipole that generates an alternating magnetic field, at least one magnetic sensor for measuring the magnetic field of the magnetic multipole, and an evaluation and control unit for evaluating the signals from the magnetic sensor. The magnetic sensor includes a magnetizable core, a drive coil, and a measuring coil. The evaluation and control unit charges the drive coil with a periodic drive signal so as to bring about a periodic magnetic reversal of the core and detects the points in time at which the magnetic reversals occur in the core. Based on the points in time at which the magnetic reversals occur, the evaluation and control unit determines a current value of the effective magnetic field of the magnetic multipole within a defined measuring range representing a range around a zero crossing of the magnetic field of the magnetic multipole.

Abstract: An angle sensor for determining a rotation angle of a rotatable body, such as a steering column in a motor vehicle, includes a gear wheel. The orientation of a magnetic field generated by the gearwheel is configured to be detected by a magnetic field sensor. The gear wheel is comprised of a magnetisable material, such as hard ferrite, into which a magnetization is introduced. The gear wheel is stronger in a central region than in an edge region in which the teeth are arranged. In order to weakly magnetize the edge region, which minimizes a negative influence of the teeth on the homogeneity of the generated magnetic field, the front face of the gear wheel is configured to be magnetized. The magnetization process advantageously takes place at the same time as an injection moulding process to form the gearwheel. A method is implemented to produce the gear wheel.