Abstract: A method and a radar target simulator for generating a simulated radar echo signal. A radar signal is sent with known bandwidth from a radar sensor to be tested. The radar signal is received in the radar target simulator. The radar signal is filtered via a low-pass filter with known filter curve. The frequency spectrum of the filtered radar signal over the full bandwidth of the low-pass filter is determined. A corrected frequency spectrum and the power of a radar signal corresponding to the corrected frequency spectrum are calculated. A scaled radar signal from the filtered radar signal and the radar echo signal as a reflection of the scaled radar signal are calculated. The radar echo signal is sent from a transmitting antenna of the radar target simulator to the radar sensor to be tested.

Abstract: The invention relates to a computer-implemented method for approximating a subset of test results of a virtual test of a device for the at least partially autonomous guidance of a motor vehicle. The invention further relates to a test unit for approximating a subset of test results of a virtual test of a device for the at least partially autonomous guidance of a motor vehicle. The invention also relates to a computer program and a computer-readable data carrier.

Abstract: A method for programming an FPGA, wherein a library with elementary operations and a respective latency table for each of the elementary operations of the library are provided. a data path is defined. The latencies are recorded for a multiplicity of clock rates that are different from one another and these latencies are added for every clock rate so that a total latency for the data path results for this multiplicity of different clock rates. The ratio between the lowest total latency and the total latency at a respective clock rate is determined. A utilization of the FPGA for each clock rate is identified. The ratio between the lowest utilization of the FPGA and the utilization of the FPGA at a respective clock rate is determined. A quality factor for each clock rate while taking into account the total latency and the utilization of the FPGA is determined.

Abstract: A computer-implemented method for creating a control program for a target platform from a graphical control model of a development platform. The graphical control model includes a block diagram with a plurality of blocks. When creating the control program for the target platform from the graphical control model, block pairs that include a first block and a second block are identified, in which the first block and the second block are connected to one another via at least one signal link such that an output of the first block drives an input of the second block. The first block and the second block are designed in such that an input signal of the first block corresponds to an output signal of the second block or designed such that an input signal of the first block corresponds to an intermediate result of the second block.

Abstract: A computer-implemented method is provided for automatically annotating sensor data frames of a spatial sensor and of an area sensor with a spatially overlapping measuring range. Received sensor data frames are initially independently annotated, a bounding box being assigned to each recognized object in the sensor data frame. The sensor data frames of the spatial sensor and the sensor data frames of the area sensor are grouped, based on a temporal correlation. The three-dimensional bounding box for an object is projected into the image plane of the area sensor. If a measure of quality for a match between the projected bounding box and the two-dimensional bounding box is above a predefined threshold value, the boxes are assigned to the same object, and this object is not further checked. Attributes of the object may be subsequently determined.

Abstract: A power electronics module for a test arrangement for testing a power electronics controller includes: supply connections for supplying energy; at least one load connection for providing at least one electrical connection variable; a supply circuit for providing electrical control voltages; a selection circuit with circuit breakers for switching one of the electrical control voltages onto the at least one load connection of the power electronics module; and an interface for controlling the circuit breakers. The supply connections of the power electronics module are AC supply connections. The supply circuit is a multi-phase circuit for providing a plurality of phase voltages on a plurality of phase conductors. The selection circuit connects a phase conductor to the at least one load connection of the power electronics module.

Abstract: A test setup for testing a stereo camera for a vehicle includes: a computing unit; and an autostereoscopic screen. The computing unit is configured to generate synthetic image data and to output the synthetic image data on the autostereoscopic screen in such a way that the image data is detectable by the stereo camera as a stereo image.

Abstract: A computer-implemented method for generating a bird's eye view image of a scene includes: (a) acquiring at least one lidar frame comprising points with inherent distance information and at least one camera image of the scene; (b) generating a mesh representation of the scene by using the at least one lidar frame, the mesh representation representing surfaces shown in the scene with inherent distance information; (c) generating a mask image by classifying pixels of the at least one camera image as representing ground pixels or non-ground pixels of the at least one camera image; and (d) generating the bird's eye view image by enhanced inverse perspective mapping exploiting distance information inherent to the surfaces of the mesh representation, pixels of the mask image classified as ground pixels, and the at least one camera image.

Abstract: The invention relates to a computer system and method having at least one peripheral device, a control module for controlling the peripheral device, and a connection module, which is connected to the control module via a first data link. The connection module has I/O data ports for exchanging pieces of information with the peripheral device, and the peripheral device is connected to one or multiple of the I/O data ports via a second data link. The number of channels in the first data link is smaller than the number of I/O data ports of the connection module. The control module includes a first gateway, which receives pieces of setpoint state information relating to the I/O data ports of the connection module.

Abstract: A computer-implemented method for generating test data for testing a control system of a motor vehicle which evaluates a sensor data stream. Simulated driving is performed through at least part of a virtual simulation environment with a virtual vehicle carrying a virtual sensor by specifying a translational movement of the virtual vehicle in the virtual simulation environment, wherein the virtual sensor has a visual field in which it detects the virtual simulation environment. Synthetic sensor data is generated with the virtual sensor by detecting the virtual simulation environment driven through by the virtual vehicle in the visual field of the virtual sensor. The synthetic sensor data is provided as test data for testing a control system of a motor vehicle which evaluates a sensor data stream.

Abstract: A battery simulator comprising a first electrical circuit for providing a first cell voltage for simulating the electrical voltage of a first battery cell and a second electrical circuit for providing a second cell voltage for simulating the electrical voltage of a second battery cell. The first cell voltage is connected to a local circuit ground and the second cell voltage is connected to the same local circuit ground and connected in series to the first cell voltage in such a way that the local circuit ground forms a pole of the first cell voltage and the second cell voltage. A control electronics is set up to regulate the first cell voltage and the second cell voltage. A saving in components results from the control of two cell voltages by a single control electronics.

Abstract: A method for determining an ego pose of a mobile system and creating a surfel map of a surrounding area of the mobile system via an optimization problem represented by a factor graph includes the steps of: receiving environment sensor data generated by an environment sensor attached to the mobile system, wherein the environment sensor surveys the surrounding area of mobile system, and wherein the environment sensor data represent the surrounding area of the mobile system as a point cloud; generating surfels by converting the point cloud of the received environment sensor data into surfel data; identifying new surfels and known surfels in the generated surfels by comparing the surfel data with the surfel map; and adding a surfel factor for the known surfels to the factor graph and/or adding a surfel node and a surfel factor for the new surfels to the factor graph.

Abstract: A computer-implemented method generates program code of an executable control program for controlling a control system. Functionality of the control program is described at least in part in a graphical model. The graphical model is translated into program code in a text-based programming language. The method includes: generating a first placeholder representing a variable, the first placeholder being used in a predetermined segment of the program code; generating a second placeholder, which is placed before a beginning of the predetermined segment of the program code that uses the first placeholder; and generating a third placeholder, which is placed after an end of the predetermined segment of the program code that uses the first placeholder.

Abstract: A computer-implemented method for data transfer in a network system comprising an external network and an internal network. The external network including at least one first network element and an external network communication element. The internal network including at least one second network element and an internal network communication element. The second network element being designed to communicate solely within the internal network. The data to be sent is encoded and transferred to the external network communication element. The data is transferred to the internal network communication element via the IP communication channel and decoded. The data is re-encoded into an application layer by the internal network communication element and transferred to the second network element.

Abstract: A method for generating source code includes: transforming a block diagram into an intermediate representation, wherein transforming the block diagram into the intermediate representation comprises transforming at least two blocks, wherein at least one loop results from transforming an operation block; identifying at least one candidate loop in the intermediate representation, wherein a loop body of a candidate loop comprises at least one instruction that accesses the array variable; identifying at least one parallelizable loop from the at least one candidate loop; determining build options for the at least one parallelizable loop and the array variable; inserting build pragmas based on the determined build options in the intermediate representation; and translating the intermediate representation into the source code.

Abstract: A computer-implemented method for real-time simulation of the operation of a specific electric motor by a simulator arithmetic unit comprising a programmable logic device on which a generic motor model is implemented. The method includes: providing a generic system of equations corresponding to the generic motor model; receiving specific information corresponding to the specific motor to be simulated for the generic system of equations and inputting this information into the generic system of equations; generating a specific library containing at least some of the arithmetic operations required for the matrix operations for calculating the operation of the specific motor; implementing references in the generic motor model to the arithmetic operations of the specific library required for real-time simulation of the operation of the specific electric motor; and simulating the operation of the specific electric motor by running the generic motor model on the simulator arithmetic unit.

Abstract: A computer system for error-free execution of multiple computer-controlled build and/or initialization steps for an FPGA-based application. The computer system being set up to generate an FPGA program code as part of build steps, to transfer it to a controlled FPGA and to prepare it for execution within the framework of initialization steps. The computer system is also set up to store and/or to check results of the build and/or initialization steps centrally in a writable memory and to check whether at least one previous build and/or initialization step has been completed without errors by reading out the writable memory before a build and/or initialization step and/or before the execution of the initialization program code. This provides a computer system that avoids the disadvantages of the conventional art.

Abstract: In an FPGA, a memory of the FPGA is to be effectively increased. This is achieved by a computer-implemented method for implementing a model-adaptive cache memory having a model state-dependent memory look-ahead on the FPGA.

Abstract: A computer-implemented method for testing an ECU with a simulator is described and presented. The simulator numerically computes a mathematical environment model on a computational unit. The environment model simulates the environment of the ECU at least in part. The ECU and the simulator are coupled with each other via appropriate I/O interfaces and interact with each other. A matrix-vector multiplication is performed when the environment model is numerically computed on the simulator, in which a matrix is multiplied by a vector to form a result vector. The matrix-vector multiplication is broken down into a sequence of summations by two summands, wherein each summand is a product of two factors, one factor being an element of the matrix and the other factor being an element of the vector.

Abstract: A system for measuring the transfer function on a path from a feed antenna via a reflector to a radar sensor testing zone includes: an anechoic chamber; the feed antenna, wherein the feed antenna is configured to transmit and receive a radar signal, and wherein the feed antenna is disposed, together with the reflector, within the anechoic chamber; the radar sensor testing zone, wherein the radar sensor testing zone is a predetermined area within the anechoic chamber; and a retroreflector disposed in the radar sensor testing zone, wherein the retroreflector is configured to cause at least a portion of a measurement signal in the radar frequency range to be reflected back to the feed antenna via the reflector, wherein the measurement signal is received from the feed antenna via the reflector.