Method and device for correcting the actual limit value of a sensor
AssigneeRobert Bosch GmbH
InventorsAndreas Kirsch, Christoph Biggel
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Abstract
A controlling unit and a method of correcting an actual limit value of a sensor signal is described, wherein above or below the limit value a specific state of the sensor is recognized, the method including the steps of determining a new limit value of the sensor, determining a stability criteria to decide whether the actual limit value is corrected with said new limit value and approaching the actual limit value to the new limit value when the conditions are fulfilled to correct the actual limit value for said sensor.
Claims24
A method of correcting an actual limit value of a sensor signal, wherein above or below the limit value a specific state of the sensor is recognized, the method comprising:
- determining a new limit value of the sensor;
- determining a stability criteria;
- deciding, based on the stability criteria, whether the actual limit value is corrected with the new limit value;
- and
- iteratively modifying the actual limit value to approach the new limit value responsive to a result of the deciding being that the actual limit value for the sensor is to be corrected with the new limit value.
A controlling unit for a sensor, wherein the controlling unit recognizes a specific state of the sensor if the sensor signal is above or below a limit value, the controlling unit comprising:
- an arrangement to determine a new limit value of the sensor;
- an arrangement to determine a stability criteria to decide whether the actual limit value is corrected with the new limit value;
- and
- an arrangement configured to iteratively modify the actual limit value to approach the new limit value responsive to the decision being that the actual limit value for the sensor is to be corrected with the new limit value.
A method for correcting a limit value of a sensor signal, comprising:
- determining, by processing circuitry, whether the sensor signal has been stable over a time period;
- while the limit value of the sensor signal is set to a current limit value, determining, by the processing circuitry, a new limit value for the sensor signal;
- and
- gradually modifying, by the processing circuitry, the limit value of the sensor signal from the current limit value in increments towards the new limit value, wherein the gradual modification is performed conditionally upon the sensor signal being determined to have been stable over the time period.
Dependencies are inferred from the claim text.