APPARATUS AND A METHOD FOR PROVIDING AN ERROR SIGNAL FOR A CONTROL UNIT

摘要

An apparatus for providing an error signal for a control unit, the error signal indicating a malfunction of a sensor unit. The apparatus includes an input module configured to receive a sensor signal from the sensor unit, the sensor signal being a periodic signal between an upper level and a lower level of a physical quantity. Further, the apparatus includes a determination module configured to determine the malfunction of the sensor unit and an output module configured to provide the error signal indicating the malfunction for the control unit. The error signal comprises a predetermined level of the physical quantity which differs from the upper level and from the lower level.

主权项

1. An apparatus for providing an error signal for a control unit, the error signal indicating a malfunction of at least one of the sensor unit and the apparatus, the apparatus comprising:
an input module configured to receive a sensor signal from the sensor unit, the sensor signal being a periodic signal of a physical quantity, wherein the apparatus is configured to transmit a sequence of alive signals indicating an operational state of the sensor unit; and an output module configured to provide the error signal indicating a malfunction of at least one of the sensor unit and the apparatus for the control unit, wherein the error signal comprises a predetermined level of a voltage or a current for at least a predetermined time period, wherein the output module is configured to transmit the error signal for the predetermined time period being longer than a period between two subsequent alive signals of the sequence of alive signals.