Abstract: A method for determining data regarding a plurality of functions performed in a vehicle for transmission to a data collection site, in particular for analysis, said method comprising: determining (210), for each of the plurality of functions (201, 202, 203), one or more signals (A, B, C) each at a frequency (222) and having been recorded and/or will be recorded by the respective function; and consolidation of the signals, comprising: checking (230) the signals for multiple existing signals, checking each of the multiple existing signals for different frequencies, and selecting (240), in the case of multiple existing signals at different frequencies, the signal with the highest frequency; and providing (250) information (251) about the consolidated signals in order to determine the data to be transmitted (260).

Abstract: A method for detecting manipulation of a technical device, particularly a technical device in a motor vehicle, especially an exhaust-gas treatment device. The method includes: providing a time series of an input vector having one or more system variables and having at least one manipulated variable for an intervention in the technical device; utilizing a data-based manipulation detection model which includes a recurrent neural network that is designed to determine a state vector as a function of the input vector, and an autoencoder which is designed to determine a reconstructed vector as a function of the state vector, detecting an anomaly as a function of a reconstruction error, which is a function of the reconstructed vector; and detecting a manipulation as a function of the reconstruction error.