Abstract: A method for evaluating an height of an object in the surrounding environment of a vehicle, using ultrasonic signals acquired by an ultrasonic sensor mounted on the vehicle. In a measurement cycle, a first ultrasonic signal is acquired as an edge reflection or as a directly traveling echo of an object. An expectation window is calculated for an associated interior-corner reflection. A second ultrasonic signal acquired in the expectation window is recognized as an interior-corner reflection associated with the first ultrasonic signal. The first and second ultrasonic signals are combined to form a signal group. A significance is determined for each ultrasonic signal. The signal group is assigned to a first or second echo group. The rates of the assignment to the first and to the second echo group are determined over a number of measurement cycles. An evaluation of the height is based on the first and second rates.

Abstract: An optical distance measuring device and a method for operating an optical distance measuring device are disclosed. In an embodiment an optical distance measuring device includes a pixelated radiation source with at least two pixels, a radiation detector configured to detect electromagnetic radiation emitted by the radiation source and reflected in measuring regions and a control unit configured to operate the radiation source and to receive electrical signals from the radiation detector, wherein the pixelated radiation source is configured to illuminate different measuring regions with electromagnetic radiation with pairwise different properties.

Abstract: A powershift transmission for an agricultural machine includes a transmission housing, an input shaft unit and an output shaft, wherein the input shaft unit and the output shaft extend at least in sections within the transmission housing. An auxiliary shaft is arranged parallel to but offset between the input shaft unit and the output shaft. The input shaft unit and the auxiliary shaft are connected to one another via a front-mounted range unit, and the auxiliary shaft and the output shaft are connected to one another via a rear-mounted range unit. The front-mounted and rear mounted range units each includes at least two gear wheel pairs, the at least two gear wheel pairs being individually coupled or decoupled. The auxiliary shaft unit includes a first auxiliary shaft and a second auxiliary shaft, where the first and second auxiliary shafts are coupled to one another via a reduction gear unit.

Abstract: A method is provided for configuring different numbers of gearshift variants in a stepped powershift transmission for an agricultural working machine. The method includes providing a transmission unit, a front-mounted range unit, a gear reduction unit, a rear-mounted range unit, a housing, a drive shaft, a lay shaft, an output shaft, and a hydraulic control arrangement. The same transmission unit is used for all the numbers of gearshift variants while an identical spatial orientation of the shafts is maintained for all the numbers of gearshift variants. The method further includes adapting exclusively the gearshift variants by varying the front-mounted range unit or the rear-mounted range unit.

Abstract: A method for acquiring the surrounding environment of a motor vehicle. The motor vehicle has at least one ultrasound sensor. The ultrasound sensor includes an ultrasound transducer for sending, the ultrasound sensor receiving acoustic environmental signals, in particular audible environmental signals, in that the ultrasound sensor is controlled in its evaluation in such a way that sound waves having frequencies below a resonant frequency of the ultrasound transducer, in particular audible sound waves, of an environmental signal are acquired and evaluated. Environmental signals are understood as acoustic signals that are not produced by the ultrasound transducer itself, but rather by an external sound source that in particular differs from the motor vehicle. This can be for example the siren of a rescue vehicle or emergency vehicle, or the horn of some other motor vehicle.

Abstract: A sensor, including at least one transducer for emitting signals and for receiving reflected echo signals, the transducer being set up to output an analog measuring signal, an analog-to-digital converter for converting the analog measuring signal into a digital measuring signal, an evaluation unit for evaluating the digital measuring signal, and a communication unit for transmitting a measuring result of the evaluation via a digital communication interface. The communication unit is equipped to receive a request for diagnostic data via the digital communication interface, and is also equipped to switch the sensor to diagnostic operation and to transmit requested diagnostic data via the digital communication interface. The communication unit is set up to communicate with at least two different data rates via the digital communication interface, a higher data rate being used for transmitting the diagnostic data than for transmitting the measuring result during normal operation of the sensor.

Abstract: A powershift transmission for an agricultural machine includes a transmission housing, an input shaft and an output shaft unit. The input shaft and the output shaft unit extend at least at a distance within the transmission housing. The transmission also includes an auxiliary shaft arranged within the transmission housing and offset between the input shaft and the output shaft unit. The input shaft and the auxiliary shaft are connected to one another via a front-mounted range unit, and the auxiliary shaft and the output shaft unit are connected to one another via a rear-mounted range unit. Each range unit includes at least two individual gear wheel pairs which are coupled or decoupled. The output shaft unit includes a main output shaft and an auxiliary output shaft coupled to one another via a reduction gear unit.

Abstract: An optoelectronic semiconductor chip may include an active region configured to emit electromagnetic radiation during operation of said optoelectronic semiconductor chip. The optoelectronic semiconductor chip comprises conversion elements arranged to convert the wavelength of the electromagnetic radiation emitted by the active region during operation, and at least one barrier at least partially impermeable to the electromagnetic radiation emitted by the active region. The barrier is disposed in a lateral direction between the conversion elements, the lateral direction being parallel to the main extension plane of the semiconductor body, and the barrier extending transversely to the lateral direction. The active region has at least two emission regions which can be driven separately from each other, and each of the conversion elements is disposed in a radiation direction of the electromagnetic radiation emitted from one of the emission regions.

Abstract: A method and system is disclosed for creating a machine learning model that is reconfigurable. A fixed parameter model is created to include fixed feature values obtained during a training process for the machine learning model. The fixed parameter model may include a fixed base classifier used by the machine learning model to classify objects detected by an ultra-sonic system within a vicinity of a vehicle. A configurable parameter model may be created to include feature values that are different from the fixed feature values, the configurable parameter model including a modified base classifier. A vehicle controller may receive and update the fixed parameter model with the configurable parameter model. The machine learning model may be updated to use the configurable parameter model to classify the objects detected by the ultra-sonic system.

Abstract: A system and method is disclosed for classifying one or more objects within a vicinity of a vehicle. Ultra-sonic data may be received from a plurality of ultra-sonic sensors and may comprise echo signals indicating one or more objects that are proximally located within a vicinity of a vehicle. One or more features may be calculated from the ultra-sonic data using one or more signal processing algorithms unique to each of the plurality of ultra-sonic sensors. The one more features may be combined using a second-level signal processing algorithm to determine geometric relations for the one or more objects. The one or more features may then be statistically aggregated at an object level. The one or more objects may then be classified using a machine learning algorithm that compares an input of each of the one or more features to a trained classifier.

Abstract: A method and system is disclosed for tuning a machine learning classifier. An object class requirement may be provided and include rank thresholds. The object class requirements may also include a range goal that defines a minimum distance from the object the machine learning algorithm should not provide false positive results. A base classifier may be trained using a weighted loss function that includes one or more weight values that are computed using the one or more object class requirements. An output of the weighted loss function may be evaluated using an objective function which may be established using the one or more object class requirements. The one or more weights may also be re-tuned using the weighted loss function if the output of the weighted loss function does not converge within a predetermined loss threshold.

Abstract: An operating method for an ultrasound transceiver device, where the ultrasound transceiver device is alternately and, in particular alternatingly operated in a transmit mode and in a receive mode; subsequently to a transmit mode and/or prior to a receive mode, the ultrasound transceiver device is actively damped by the action of a sequence of counter control pulses; a phase position and/or a damping energy are/is iteratively determined or adapted via a training by a measure of the damping success at least temporarily assuming or approaching an at least locally optimal value.

Abstract: A method for recognizing a noise represented in a receive signal of an ultrasonic sensor. A characteristic spectrum of the noise is compared with a noise spectrum of the receive signal, the noise spectrum including at least two noise levels determined in different frequency bands of the receive signal.

Abstract: A method is provided for classifying an object, in particular in the surroundings of a motor vehicle, using an ultrasonic sensor system, the ultrasonic sensor system including a plurality of spatially distributed ultrasonic sensors. A plurality of measurements are carried out continuously during a measurement, an ultrasonic signal being emitted by one of the ultrasonic sensors, a signal being received by at least one of the ultrasonic sensors which includes a plurality of reflected echo signals, so-called multiple echoes, and the received echo signals being associated with an object. A plurality of features may be determined from the received echo signals. The object is classified as a function of a combination of at least two of these features, in particular as a pedestrian.

Abstract: A device for locating a vehicle for an inductive energy transmission from an inductive charging device to the vehicle includes an ultrasound transmitter, which emits at least one first ultrasonic signal. At least three ultrasound receivers are situated on the vehicle, which receive an ultrasonic signal sequence having a direct receive signal and further receive signals in each case. A processing unit is situated on the vehicle, which is developed to ascertain the earliest receive direct receive signals within the ultrasonic signal sequences and to ascertain a position of the vehicle relative to the primary coil of the inductive charging device as a function of the ascertained direct receive signals.

Abstract: A method for classifying objects in the surroundings of a vehicle using ultrasonic sensors which emit ultrasonic pulses and receive ultrasonic echoes reflected by objects. Distances between the sensors and objects reflecting ultrasonic pulses are ascertained via at least two ultrasonic sensors including overlapping fields of vision, and a position determination of the reflecting objects taking place using lateration and the assignment of the received ultrasonic echoes to object hypotheses for distinguishing between extensive objects and point-like objects.

Abstract: An assembly is disclosed. In an embodiment an assembly includes a light source configured to illuminate a field of view, a control circuit configured to operate the light source and a camera configured to record a scene in the field of view, wherein the light source comprises at least one semiconductor component having at least one semiconductor chip, wherein the semiconductor chip has an semiconductor layer sequence with an active region, wherein the semiconductor chip comprises the plurality of pixels, wherein the plurality of pixels are configured to generate radiation of the light source, wherein the control circuit has a memory configured to store operational data of the light source, wherein the control circuit is configured to operate the pixels on basis of the operational data, and wherein the arrangement is configured to perform an adaptation of at least a part of the operational data in the memory during operation of the arrangement.

Abstract: A method for measuring precipitation. The method includes a read-in step, a detection step and a determination step. In the read-in step, data packets of at least one ultrasonic sensor are read in. Excitations detected by the ultrasonic sensor within a measuring time window are mapped in a data packet. The excitations are mapped as time values and intensity values. The time value represents a detection point in time of an excitation. The intensity value represents an amplitude of the excitation. In the detection step, excitations are detected as drop events. An excitation is detected as a drop event induced by a pulse of an impacting drop if the time value and/or the intensity value of the excitation satisfies at least one characteristic of a drop event. In the determination step, a precipitation intensity is determined, using a number of drop events detected per time unit.

Abstract: A method for detecting a ground echo signal of an ultrasonic sensor of a vehicle. The ultrasonic sensor emits a signal at a first frequency or having a first frequency profile, the signal is reflected by a roadway surface and the reflected signal is received by the ultrasonic sensor and/or by an additional ultrasonic sensor. The received echo signal is filtered with the aid of a matched filter, the matched filter being adapted to the emitted signal and having a characterizing frequency. In this way a ground echo signal is determined from the filtered signal. The instantaneous vehicle speed is determined and an expected Doppler shift of the reflected signal is determined as a function of the instantaneous vehicle speed. The first frequency or the first frequency profile and/or the characterizing frequency of the matched filter is/are adapted as a function of the Doppler shift to be expected.

Abstract: A method is accordingly provided for operating an ultrasonic sensor, a plurality of measuring cycles being successively carried out. In each measuring cycle—an electroacoustic transducer of the ultrasonic sensor is excited using an excitation pulse, causing it to mechanically oscillate, as a result of which a measuring signal is transmitted by the transducer, an echo signal is received by the transducer, and a piece of object information is ascertained from the echo signal. The frequency curve of the excitation pulse is differentiated into two measuring cycles successively carried out at least at the end of the frequency curve. The ascertained pieces of object information from at least two measuring cycles are compared with one another and an interference is identified as a function of the result of the comparison.