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US 11,351,943 B2Granted
Method for detecting the application of scratches and bumps
AssigneeAptiv Technologies AG
InventorsRainer Bunse, Andreas Vogt, Vikas Kumar
Life of this patent
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Abstract
A method for detecting scratches and bumps applied to a vehicle uses an acceleration sensor. Signals of the sensor are analyzed and evaluated based on duration and frequency.
Claims14
A method for detecting the application of scratches and/or bumps to a vehicle using at least one acceleration sensor mounted to the vehicle, wherein signals which are output by the acceleration sensor are monitored and analyzed by an electronic device, the method comprising:
- analyzing an envelope of the signals;
- determining that a signal is to be evaluated based on analyzing the envelope;
- and
- evaluating the signal to classify an application of a scratch and/or bump, wherein the evaluating is on the basis of a duration and a frequency of the signal in each of a plurality of frequency bands which are respectively filtered out from a total bandwidth of the signal, wherein the evaluating includes evaluating an amplitude of the signal in each of the plurality of frequency bands to classify the application of the scratch and/or bump based on a relationship between the amplitudes.
1 more element
Dependencies are inferred from the claim text.