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Assigneeebm-papst Landshut GmbH
InventorsFrank KUTSCHBACH, Franz RIEDMUELLER, Stephan WALD, Markus WEINGART, Anton BERGHAMMER, Robert GOLDNER, Erich GREINER, Volker KLEINE
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The invention relates to a method for checking a time-discrete signal value of a sensor for freedom from errors, wherein the signal value of the sensor is converted into a first measured value and a second measured value by two different evaluating devices of an electronic system, wherein the first and second measured values are transmitted to a control system by the electronic system, and the control system calculates a first control signal from the first measured value and, in parallel thereto, a second control signal from the second measured value, wherein the control system comprises a comparator which compares the first control signal and second control signal to verify the identity thereof.
A method for checking a time-discrete signal value of a sensor for freedom from errors, wherein the signal value of the sensor is converted into a first measured value (8) and a second measured value (9) by two different evaluating devices (5, 6) of an electronic system, wherein the first and second measured values (8, 9) are transmitted to a control system by the electronic system, and the control system calculates a first control signal from the first measured value (8) and, in parallel thereto, a second control signal from the second measured value (9), wherein the control system comprises a comparator (15) which compares the first control signal and the second control signal to check the identity thereof, and wherein the sensor is a rotation sensor (2), which detects a rotation signal of an electric motor, particularly a fan motor (M), as a time-discrete signal value.
The method according to claim 3, characterized in that the control system is designed as a safety-relevant control system (40).
Dependencies are inferred from the claim text.