Robert Boschgmbh

Oleg Schell

Marcel Kneib

A node device for a bus system, including a transceiver for connecting to a bus of the bus system; a controller connected to the transceiver via a transmit line and via a receive line, the controller and the transceiver designed to transfer data from the controller to the transceiver via the transmit line and transferring data from the transceiver to the controller via the receive line; a processor; and an intrusion detection system; the processor being connected to the transceiver via a controller bypass line and being designed to, via the controller bypass line, intercept an intrusion into the bus system identified by the intrusion detection system, the intrusion detection system being designed to detect an intrusion into the bus system in which a further node of the bus system sends a frame including an identifier assigned to a third node of the bus system to the bus.

Frame invalidation in the bus system including intrusion detection system

A computer-implemented method for processing data which are associated for example with a signal transmittable and/or transmitted via a bus system, for example of a vehicle, including: at least intermittent provision of reference data for a statistical model which characterizes at least one average of at least one characteristic of the signal on the basis of a first average determined, for example dynamically, over a predefinable unweighted first number of values for the characteristic, and at least intermittent modification of the reference data at least in part on the basis of a second average determined, for example dynamically, over a predefinable weighted second number of values for the characteristic.

Method and device for processing data associated with a signal

A method for checking a message in a communication system, in which multiple users are connected to a communication medium and exchange messages via same. A time difference between points in time of reception of a message that is sent on the communication medium is ascertained at two different, predefined positions on the communication medium, and based on a comparison of the time to at least one reference time difference, it is determined whether the message originates from a verified user.

Method for checking a message in a communication system

A method for evaluating a signal that is, for example, transferred and/or receivable via a bus system. The method includes: ascertaining a first variable that characterizes a length of a bit sequence associated with the signal, for example, the bit sequence including n bits, where n is greater than or equal to one, and optionally ascertaining a second variable that characterizes a deviation of the length of the bit sequence from a reference bit sequence that includes n bits.

Method and device for evaluating a signal

A method, particularly a computer-implemented method, for determining information of a bus system that has a transmission medium via which signals are transmittable. The method includes: determining a first variable which characterizes a time difference between a first point in time and a second point in time, a signal output by a transmitter onto the transmission medium of the bus system reaching a first position relative to the transmission medium at the first point in time, and the signal output by the transmitter onto the transmission medium of the bus system reaching a second position relative to the transmission medium at the second point in time; evaluating the first variable, at least one time-to-digital converter device being used for determining the first variable.

Method and device for determining information of a bus system

A method for checking a message in a communication system, in which multiple users are connected to a communication medium that includes two signal lines and exchange messages via same. A time difference between points in time of reception of a message that is sent on the communication medium is ascertained at two different, predefined positions on the communication medium, and based on a comparison of the time difference to at least one reference time difference, it is determined whether the message originates from a verified user. During the ascertainment of the time difference at the two positions, in each case a difference signal is formed from signals that have resulted on the two signal lines due to the message.

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Krautheim, Germany

Oleg Schell