Method for establishing a table of correction values and sensor signal and a sensor module
First Claim
1. Method of establishing a table of correction values for detecting zero point deviations in a sensor module of a vehicle, wherein at least one sensor, preferably at least two sensors, sensing the movement of the vehicle and at least one temperature sensor is provided, characterized by the steps of determining deviations from the zero points of the sensor in a calibration mode when passing through a temperature profile, and classifying the deviations from the zero points of the sensor and associating temperature values or classes with the deviations.
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Accused Products
Abstract
A system for establishing a table of correction values for detecting deviations from zero in a sensor module of a vehicle, wherein a sensor sensing the movement of the vehicle a sensor for sensing the temperature of the vehicle movement sensor and is provided, and a method for determining a corrected sensor signal and a sensor module for determining a corrected sensor signal.
66 Citations
18 Claims
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1. Method of establishing a table of correction values for detecting zero point deviations in a sensor module of a vehicle, wherein at least one sensor, preferably at least two sensors, sensing the movement of the vehicle and at least one temperature sensor is provided, characterized by the steps of
determining deviations from the zero points of the sensor in a calibration mode when passing through a temperature profile, and classifying the deviations from the zero points of the sensor and associating temperature values or classes with the deviations.
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14. Method of determining a corrected sensor signal in accordance with a sensed temperature in a sensor module of a vehicle, wherein at least one sensor, preferably at least two sensors, sensing the movement of the vehicle and at least one temperature sensor is provided,
characterized by the steps of determining a deviation from the zero point of the sensor signal in a calibration mode at a predetermined temperature, and storing the zero point of the sensor signal corrected by the deviation at the temperature value as a correction value, determining the temperature of the sensor module during operation of the vehicle, reading the correction value out of the memory, and correcting the sensor signal with the correction value according to the relation {dot over (Ψ - )}Sensor-Module={dot over (Ψ
)}Sensor−
{dot over (Ψ
)}0(τ
). - View Dependent Claims (16, 18)
- )}Sensor-Module={dot over (Ψ
Specification