Abstract: A device and method for determining a classification of an object. A radar spectrum which includes radar reflections is determined as a function of sensor data from a radar sensor. Embeddings of sections from the radar spectrum which include at least one radar reflection are determined and each is assigned to a node of a first graph. Edges are determined as a function of pairwise distances between the embeddings which are assigned to the nodes. For each edge, a feature for the edge is determined as a function of the embeddings of two nodes which are connected to one another by the edge. For each node, a feature for the node is determined as a function of the features for the edges which connect the node to another node. A characteristic quantity is provided for each radar reflection as a function of the sensor data.

Abstract: The disclosure proposes a method for ascertaining and/or monitoring a mechanical state of at least one tie rod apparatus of an electrically assisted steering system of a vehicle, wherein at least one operating characteristic variable, which is correlated to a steering movement, of at least one steering actuator and/or of at least one steering controller of the steering system is ascertained and evaluated for ascertaining and/or for monitoring the mechanical state of the tie rod apparatus.

Abstract: An apparatus and a method for diagnosing an internal combustion engine for a vehicle, the apparatus encompassing: a recognition device that is embodied to recognize a shutoff operation of the internal combustion engine while the vehicle is being operated in particular in a normal operating mode; a detection device that is embodied to detect, during the shutoff operation, a part or several parts of a curve for a rotation speed or an inter-tooth time of a crankshaft of the internal combustion engine; a comparison device that is embodied to compare at least one feature of the part or the several parts of the curve, in a comparison, with a comparison feature; and a diagnostic device that is embodied to perform, as a function of a result of the comparison, a diagnosis with regard to a compression loss in at least one cylinder.

Abstract: The disclosure proposes a method for ascertaining and/or monitoring a mechanical state of at least one tie rod apparatus of an electrically assisted steering system of a vehicle, wherein at least one operating characteristic variable, which is correlated to a steering movement, of at least one steering actuator and/or of at least one steering controller of the steering system is ascertained and evaluated for ascertaining and/or for monitoring the mechanical state of the tie rod apparatus.

Abstract: An apparatus and a method for diagnosing an internal combustion engine for a vehicle, the apparatus encompassing: a recognition device that is embodied to recognize a shutoff operation of the internal combustion engine while the vehicle is being operated in particular in a normal operating mode; a detection device that is embodied to detect, during the shutoff operation, a part or several parts of a curve for a rotation speed or an inter-tooth time of a crankshaft of the internal combustion engine; a comparison device that is embodied to compare at least one feature of the part or the several parts of the curve, in a comparison, with a comparison feature; and a diagnostic device that is embodied to perform, as a function of a result of the comparison, a diagnosis with regard to a compression loss in at least one cylinder.