Abstract: A computer-implemented method for the fusion of a plurality of sensor signals using a neural network, a sensor signal including at least one first value that characterizes an expected value of a physical variable and including a second value that characterizes a scatter of the physical variable. In addition the neural network ascertains, based on the plurality of sensor signals, an output that characterizes a fusion of the plurality of sensor signals. The output is a function of a first intermediate output of the neural network. The first intermediate output is ascertained by at least one first neuron and including an ascertained first value that characterizes an expected value of a fusion of the plurality of sensor values, and including an ascertained second value that characterizes a scatter of the fusion, the ascertained second value of the first intermediate output being set to zero if a specifiable condition is fulfilled.

Abstract: A reflection attenuation device for a bus of a bus system and a method for attenuating reflections during a data transfer in a bus system. The reflection attenuation device may close off a free end of bus lines of the bus in a transceiver device of a user station of the bus system. Alternatively, the reflection attenuation device may be connected to a branch point of the bus which is a star point or is used to connect a user station to the bus. Thus, bus users in a vehicle trailer are also connectable to the bus system of the vehicle, as needed. The reflection attenuation device includes at least one pair of electrical semiconductor components connected in parallel, and at least one capacitor that is connected in series to the pair of electrical semiconductor components connected in parallel, for attenuating reflections on a bus line of the bus.

Abstract: Subscriber-stations for a bus-system, and data-transmission method in a bus-system. The subscriber-stations include master-subscriber-station(s) and at least two slave-subscriber-stations for the bus-system.

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 for processing a receive signal recorded by an ultrasonic sensor. Echoes are filtered out from a signal curve of the receive signal using at least one echo criterion in order to obtain a filtered receive signal. At least one noise level of the filtered receive signal is determined in at least one subregion of the signal curve.

Abstract: A method for identifying a road condition, in which a piece of road condition information representing the road condition is determined using a front end air moisture value representing an air moisture at a front end of a vehicle and a rear end air moisture value representing an air moisture at a rear end of the vehicle.

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 and an apparatus for supporting a camera-based environment recognition by a means of transport using road wetness information from a first ultrasonic sensor. The method includes: recording a first signal representing an environment of the means of transport by the first ultrasonic sensor of the means of transport; recording a second signal representing the environment of the means of transport by a camera of the means of transport; obtaining road wetness information on the basis of the first signal; selecting a predefined set of parameters from a plurality of predefined sets of parameters as a function of the road wetness information; and performing an environment recognition on the basis of the second signal in conjunction with the predefined set of parameters.

Abstract: A method for operating ultrasonic sensors of a vehicle. In the method, front ultrasonic sensors of the vehicle are used to detect wind noise at the vehicle, rear ultrasonic sensors of the vehicle are used to detect a road condition in the area of the vehicle, and lateral ultrasonic sensors of the vehicle are used to detect objects in the area of the vehicle.

Abstract: A subscriber station for a serial bus system are provided. The subscriber station includes a message creating device for creating a message to be transmitted serially via a bus of the bus system for at least one further subscriber station of the bus system, so that the message has a first time segment and a second time segment, and a transceiver device for serially sending the message to the bus in such a way that data in the first time segment are sent with a slower data rate than in the second time segment, the transceiver device having in the second time segment at least at times an exclusive, collision-free access to the bus, the message creating device to insert an identification number into the first time segment and to begin the second time segment at the latest after the final bit of the identification number and an additional bit.

Abstract: An ultrasonic system of a vehicle. The ultrasonic system includes: at least one ultrasonic sensor for ascertaining a distance of objects from the vehicle by comparing an emitted signal and a reflected echo, and a calculation apparatus for evaluating a measured signal of the ultrasonic sensor. The calculation apparatus is configured to determine a variance of a ground echo distribution within a roadway portion on which the vehicle is moving, and to ascertain the condition of the roadway portion on the basis of at least one predefined classifier that associates individual values of the variance with a roadway condition.

Abstract: The invention relates to a method for regulating the humidity of a membrane (12) of a fuel cell, comprising the steps of compressing a cathode gas (2) by means of a compressor (22) and humidifying a cathode gas (2) by supplying water to the cathode gas (2) by means of a supply device, the supply device comprising an injection valve (26) by means of which the water is supplied to the already compressed cathode gas (2) on demand.

Abstract: A method for identifying a road condition of a road. A piece of road condition information representing the road condition is determined using a noise level detected by at least one ultrasonic sensor of a vehicle and a bottom echo detected from a road surface in the area of the vehicle.

Abstract: In a method for increasing the data rate of a bus system in which at least at times an exclusive, collision-free access of a subscriber station to a bus line of the bus system is ensured, a subscriber station for the bus system includes a communication control device for evaluating a message that was received by at least one further subscriber station of the bus system via the bus system, the communication control device including at least two RX protocol machines that are set up to use different bit timing parameter data sets in order to evaluate whether the received message is valid, the at least two RX protocol machines each being assigned a register to which the associated RX protocol machine is designed to write the result of its evaluation of the received message.

Abstract: A subscriber station for a serial bus system. The subscriber station encompasses: a communication control device for controlling communication with at least one further subscriber station of the bus system; a transmission/reception device for receiving a message from a bus of the bus system, which message was created by the communication control device or by the at least one further subscriber station of the bus system and is being transferred on the bus; an interference detection unit that is configured to detect interference in the context of transfer of the message on the bus; and an interference processing unit that is configured to evaluate the interference detected by the interference detection unit in terms of the nature and magnitude of the interference, and to adapt communication control by the communication control device to the result of the evaluation of the interference.

Abstract: A method and a device are described for creating a map, including a step of receiving a signal, the signal representing a determination of the position of a vehicle in an area, and the signal including an analysis of the position determination, a step of determining a surface state in the area, based on the analysis and as a function of the position determination, a step of creating a map based on the surface state, the map representing at least the area, and a step of providing the map.

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 for detecting a road condition in the area of a vehicle using sensor data from an acoustic sensor system of the vehicle. A detection rate of false positive objects reproduced in the sensor data is analyzed in an analysis step in order to detect a current road condition, a current value of the detection rate being analyzed using at least one expected value assigned to a road condition.

Abstract: Subscriber-stations for a bus-system, and data-transmission method in a bus-system. The subscriber-stations include master-subscriber-station(s) and at least two slave-subscriber-stations for the bus-system.

Abstract: A method for influencing driving dynamics of a vehicle, in which the driving dynamics are influenced as a function of parameters allocated to a selected driving dynamics mode when the driving dynamics mode is activated, and the driving dynamics are influenced as a function of road state information representing a road state in the region of the vehicle when an automatic mode is activated.