DEVICE AND METHOD FOR MONITORING A DIGITAL CONTROL UNIT WITH REGARD TO FUNCTIONAL SAFETY, AND CONTROLLER

A device for monitoring a digital control unit with regard to functional safety is proposed. The device comprises an interface configured to receive a control signal of the digital control unit for a circuit component. The control signal represents a digital value. Furthermore, the device comprises...

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Bibliographische Detailangaben
Hauptverfasser:	Greslehner-Nimmervoll, Bernhard, Findenig, Rainer, Schmid, Christian
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CALCULATING CODE CONVERSION IN GENERAL CODING COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING COUNTING DECODING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING
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Beschreibung
Zusammenfassung:	A device for monitoring a digital control unit with regard to functional safety is proposed. The device comprises an interface configured to receive a control signal of the digital control unit for a circuit component. The control signal represents a digital value. Furthermore, the device comprises a timer circuit configured to output an associated timer value in each case for successive points in time. The device furthermore comprises a hash value generator, which is configurable, in response to a change in the digital value, to recalculate a hash value on the basis of the change in the digital value and the timer value at the point in time of the change in the digital value.