Method and apparatus for recognizing a vertical misalignment of a clearance sensor
First Claim
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1. A method for recognizing a vertical misalignment of a clearance sensor mounted to a motor vehicle, the method comprising the steps of:
- determining a plurality of pitch angles of the motor vehicle;
determining a frequency of target occurrences, the target occurrences including at least one of an occurrence in which the clearance sensor detects a target and an occurrence in which the clearance sensor detects a target in one cycle but does not detect the target in a subsequent cycle;
determining a correlation between the plurality of pitch angles to the frequency of target occurrences;
determining a fault indicator as a function of the correlation; and
recognizing the vertical misalignment as a function of the fault indicator.
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Abstract
A method and an apparatus on the basis of which a vertical misadjustment or misalignment of a clearance sensor, which is installed in or on a motor vehicle, can be recognized. Pitch motions of the motor vehicle are determined, for example via sensors, in the form of pitch angles, and are correlated in an analysis and control device with data and/or signals which were generated or prepared by the clearance sensor, and which contain the target detections or target detection losses.
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Citations
11 Claims
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1. A method for recognizing a vertical misalignment of a clearance sensor mounted to a motor vehicle, the method comprising the steps of:
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determining a plurality of pitch angles of the motor vehicle; determining a frequency of target occurrences, the target occurrences including at least one of an occurrence in which the clearance sensor detects a target and an occurrence in which the clearance sensor detects a target in one cycle but does not detect the target in a subsequent cycle; determining a correlation between the plurality of pitch angles to the frequency of target occurrences; determining a fault indicator as a function of the correlation; and recognizing the vertical misalignment as a function of the fault indicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for recognizing a vertical misalignment of a clearance sensor mounted to a motor vehicle, comprising:
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means for determining a plurality of pitch angles of the motor vehicle; means for determining a frequency of target occurrences, the target occurrences including at least one of an occurrence in which the clearance sensor detects a target and an occurrence in which the clearance sensor detects a target in one cycle but does not detect the target in a subsequent cycle; means for determining a correlation between the plurality of pitch angles to the frequency of target occurrences; means for determining a fault indicator as a function of the correlation; and means for recognizing the vertical misalignment as a function of the fault indicator.
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Specification