Generation of an output signal value from sensor signal values of at least three redundant sensors
AssigneeInfineon Technologies AG
InventorWolfgang Granig
Life of this patent
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Abstract
A device for the generation of an output signal value making use of sensor signal values of at least three redundant sensors comprises a computing device that is configured to calculate absolute magnitudes of the differences between all possible pairs of the sensor signal values, and to determine the output signal value taking the calculated absolute magnitudes into consideration.
Claims21
A device for generating an output signal value making use of sensor signal values of at least three redundant sensors, the device comprising:
- a computing device that is configured to:
- calculate mean values of possible pairs of sensor signal values, so that an associated absolute magnitude and an associated mean value are calculated for each pair of the possible pairs;
- determine an associated weighting factor for each pair, of the possible pairs, that depends on a distance of the associated absolute magnitude from a threshold value;
- determine, based on the calculated mean values and the determined weighting factors, contributions of channels associated with the at least three redundant sensors;
- determine the output signal value based on a proportional channel accumulation using the determined contributions of channels;
- perform, based on the output signal value, at least one of a fault-tolerant acquisition or fault correction of at least three redundant sensor channels associated with the at least three redundant sensors;
- and
- generate an output signal based on performing at least one of the fault-tolerant acquisition or the fault correction.
A device for generating an output signal value making use of sensor signal values of at least three redundant sensors, the device comprising:
- a computing device that is configured to:
- ascertain for each signal value a deviation between the sensor signal value and a mean value of all the other sensor signal values;
- determine the sensor signal value for which the largest deviation was ascertained;
- determine the output signal value, wherein the sensor signal value for which the largest deviation has been ascertained is not taken into consideration in the determination of the output signal value;
- perform, based on the determined output signal value, at least one of a fault-tolerant acquisition or fault correction of at least three redundant sensor channels associated with the at least three redundant sensors;
- and
- generate an output signal based on performing at least one of the fault-tolerant acquisition or the fault correction.
A method for generating an output signal value making use of sensor signal values of at least three redundant sensors, comprising:
- calculating mean values of possible pairs of sensor signal values, so that an associated absolute magnitude and an associated mean value are calculated for each pair of the possible pairs;
- determining an associated weighting factor for each pair, of the possible pairs, that depends on a distance of the associated absolute magnitude from a threshold value;
- determining, based on the calculated means value and the determined weighting factors, contributions of channels associated with the at least three redundant sensors;
- determining the output signal value based on a proportional channel accumulation using the determined contributions of channels;
- performing, based on the determined output signal value, at least one of a fault-tolerant acquisition or fault correction of at least three redundant sensor channels associated with the at least three redundant sensors;
- and
- generating an output signal based on performing at least one of the fault-tolerant acquisition or the fault correction.
A method for generating an output signal value making use of sensor signal values of at least three redundant sensors, the method comprising:
- ascertaining for each signal value a deviation between a respective sensor signal value and a mean value of all the other sensor signal values;
- determining a sensor signal value, of the sensor signal values, for which the largest deviation was ascertained;
- determining the output signal value, wherein the sensor signal value for which the largest deviation has been ascertained is not taken into consideration in the determination of the output signal value;
- performing, based on the determined output signal value, at least one of a fault-tolerant acquisition or fault correction of at least three redundant sensor channels associated with the at least three redundant sensors;
- and
- generating an output signal based on performing at least one of the fault-tolerant acquisition or the fault correction.
Dependencies are inferred from the claim text.