Abstract: A lidar scanning device for use in a motor vehicle includes a light source for emitting light onto an object; a light detector for receiving light that was reflected by the object; and multiple optical imaging elements in the optical path between the object and the light detector.

Abstract: A downhole system includes a drill string having a drilling fluid flow channel and at least one turbine alternator deployed in the flow channel. The turbine alternator is configured to convert flowing drilling fluid to electrical power. A voltage bus is configured to receive electrical power from the turbine alternator and at least one electrical motor is configured to receive electrical power from the voltage bus. An electronic controller is configured to provide active control of the turbine alternator via processing a desired speed of the electrical motor to generate a desired torque current and feeding the desired torque current forward to the turbine alternator. The turbine alternator is responsive to the desired torque current such that it modifies the electrical power provided to the voltage bus in response to the desired torque.

Abstract: A LIDAR device that includes a stator element, and a rotor element that is situated on the stator element. The stator element includes a transmitting device and a receiving device. In the intended mounting position of the LIDAR device on a vehicle, during each half-rotation of the rotor element, a transmission beam of the transmitting device is essentially continuously emittable into a field of view directed toward the front, and a reception beam is essentially continuously receivable from the field of view directed toward the front.

Abstract: A device for determining a position of an object is provided. The device includes at least one first emitter configured to emit a first transmission light signal that travels from the device to the object, and at least one detector that is configured to detect a reception light signal that travels from the object to the detector. The detector includes at least one pixel matrix that includes at least one pixel. The device includes at least one passive polarization adaptation unit configured to control a polarization of the reception light signal as a function of an ambient light signal. A method for determining a position of at least one object with the aid of such a device is also described, in which the measuring-control element measures a first signal-to-noise ratio at a first measuring point in time, and a second signal-to-noise ratio at a second measuring point in time.

Abstract: A sensor device for detecting an object with the aid of light of at least one wavelength, including a transmitting unit for emitting light using at least one light source and a receiving unit for receiving light, the light emitted by the transmitting unit in the plane perpendicular to the transmit path having the form of a circumferential surface, which includes an inner area to which light is not applied, an optical element being situated in a shared part of the transmit and receive paths, in such a way that the cross-section surface of the optical element in the plane perpendicular to the transmit path essentially completely overlaps with its cross-section surface the inner area to which light is not applied.

Abstract: A directed light source supplies a light cone which is guided across a predefined area. A method for controlling the light source includes determining a movement of the light source; estimating an impending change in a section of the area illuminated by the light cone as a result of the determined movement; determining that the section will most likely be illuminated by the changed light cone for longer than predefined; and supplying a dimming signal for the light source.

Abstract: A lidar device for scanning a region to be scanned, using at least one beam, including at least one radiation source for generating the at least one beam, and at least two mirrors rotatable about an axis of rotation, in order to deflect beams reflected by an object, onto a detector oriented perpendicularly to the axis of rotation; the at least two mirrors having, in each instance, a reflectivity for a wavelength range and being connectable to each other at an angle, in a region of the axis of rotation. A method for scanning a region to be scanned, using a lidar device, is also described.

Abstract: An assembly configured to operate a surroundings sensor in a roof area of a means of transportation includes a thermally conductive segment and a thermal interface that is configured to protrude into, and be thermally connected to a volume of, a passenger compartment of the means of transportation.

Abstract: A light transmission element for an optical unit for transmitting and, in the process, adapting the angle of transmitted light, including a sequence of a multitude of optical elements situated in the form of a layer, in which the layer forms a first side and a second side, which face away from one another, a respective optical element including a pair of subelements, which each extend from a geometrically essentially identical base in a tapering manner and which face one another with their bases and extend with different lengths along their taper, and the optical elements being aligned in such a way that subelements having a greater length face the first side and subelements having a lesser length face the second side.

Abstract: A 3-D lidar sensor, in particular, for motor vehicles, includes a laser beam source, an optical receiver and a scanning system for deflecting a laser beam generated by the laser beam source in two scanning directions perpendicular to each other; to increase the functionality, a further detection device for deviations from normal operation being provided in the 3-D lidar sensor. In addition, a corresponding method for operating the 3-D lidar sensor is provided.

Abstract: The disclosure relates to a device for a vehicle. The device comprises a component for the vehicle and an explosive module. The explosive module is configured so as in response to a trigger signal to cause the component to fragment.

Abstract: An apparatus for ascertaining the surroundings for a vehicle includes a housing configured to receive a device for ascertaining the surroundings of the vehicle and a movement device. The movement device is connected to the housing and is coupled to a structural element of the vehicle. The movement device is configured to move the housing relative to the structural element in response to a triggering signal in order to initiate a protective function in a case of an impact effect that is acting upon the vehicle.

Abstract: A device for determining a position of at least one object is described, the device including an emitter array, which is configured to cover a field of view of the device, and which includes at least two emitters, which are situated on a support element, each emitter being configured to cover an illumination area. The device provides that the emitters are individually controllable, the illumination area of the emitters being disjunctive and covering the field of view of the device.

Abstract: A fault tolerant inverter or controlled rectifier system includes a first leg having at least one switch device, a spare leg having at least one spare switch device, a spare leg connect switch associated with the spare leg and the first leg, a fault detection sub-system for detecting a fault in the first leg and outputting a signal on detection of a fault in the first leg, and a leg selection control sub-system that receives the signal output by the fault detection sub-system and controls the operation of the spare leg connect switch in accordance with the output signal, such that on detection of a fault the spare leg may be activated to take over the operation of the first leg.

Abstract: A lidar scanning device for use in a motor vehicle includes a lidar sensor having a predefined scanning field, the lidar sensor being configured for determining the distance of an object within the scanning field, and a pivot device for varying an alignment of the scanning field of the lidar sensor as a function of a driving direction of the motor vehicle.

Abstract: A lidar scanning device for use in a motor vehicle includes a light source for emitting light onto an object; a light detector for receiving light that was reflected by the object; and multiple optical imaging elements in the optical path between the object and the light detector.

Abstract: A fault tolerant inverter or controlled rectifier system includes a first leg having at least one switch device, a spare leg having at least one spare switch device, a spare leg connect switch associated with the spare leg and the first leg, a fault detection sub-system for detecting a fault in the first leg and outputting a signal on detection of a fault in the first leg, and a leg selection control sub-system that receives the signal output by the fault detection sub-system and controls the operation of the spare leg connect switch in accordance with the output signal, such that on detection of a fault the spare leg may be activated to take over the operation of the first leg.

Abstract: A downhole generator system including a controlled rectifier for receiving electrical power from a generator and outputting rectified electrical power. A control system controls the operation of the controlled rectifier and a chopper circuit connected to the output of the controlled rectifier connects a load selectively across the output of the controlled rectifier to regulate the output of the generator system. The control system controls the chopper circuit and/or the controlled rectifier based at least in part on a feed-back signal representative of an electric current output by the generator system and an electric current passing through the chopper circuit.

Abstract: A downhole system includes a drill string having a drilling fluid flow channel and at least one turbine alternator deployed in the flow channel. The turbine alternator is configured to convert flowing drilling fluid to electrical power. A voltage bus is configured to receive electrical power from the turbine alternator and at least one electrical motor is configured to receive electrical power from the voltage bus. An electronic controller is configured to provide active control of the turbine alternator via processing a desired speed of the electrical motor to generate a desired torque current and feeding the desired torque current forward to the turbine alternator. The turbine alternator is responsive to the desired torque current such that it modifies the electrical power provided to the voltage bus in response to the desired torque.

Abstract: An electric machine includes a rotor having at least one pole pair, the at least one pole pair including a first magnetic pole and a second magnetic pole having opposite polarities. The first magnetic pole may include a first inner radial permanent-magnet layer and a first outer radial permanent-magnet layer. The second magnetic pole may include a second inner radial permanent-magnet layer and a second outer radial permanent-magnet layer. An outer end of the first inner radial permanent-magnet layer and an outer end of the second inner radial permanent-magnet layer may be separated by an angle of between about 27 and about 55 electrical degrees. The electric machine may also include a stator having a stator core with an odd number of stator slots per pole pair of the rotor.