METHOD FOR RECORDING VEHICLE-RELEVANT DATA, IN PARTICULAR FOR DETECTING AND FOR EVALUATING MINOR DAMAGE, SENSOR ARRANGEMENT FOR INSTALLATION IN A VEHICLE AND VEHICLE HAVING THE SENSOR ARRANGEMENT FOR CARRYING OUT THE METHOD
First Claim
1. A method for recording vehicle-relevant data, in particular for detecting and for evaluating minor damage to a vehicle in which structure-borne noise caused by an event, for example, caused by damage and/or a contact is detected and evaluated, comprising:
- recording the structure-borne noise with its entire frequency spectrum,dividing the frequency spectrum with a filter into a lower frequency range and into an upper frequency range,characterizing an event by at least one amplitude in the upper frequency range, wherein the event having an amplitude in the upper frequency range is included in an envelope curve analysis,in the envelope curve analysis for the lower frequency range, determining a lower power density and, for the upper frequency range, determining an upper power density,determining a relative measured value from the ratio of the upper power density to the lower power density, andevaluating the event by means of the relative measured value and storing the event.
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Accused Products
Abstract
A method for recording vehicle-relevant data, in particular for detecting and evaluating damage to a vehicle in which structure-borne noise caused by an event, such as damage or contact, is detected and evaluated. The noise is recorded with its entire frequency spectrum, the frequency spectrum is divided into a lower frequency range and an upper frequency range, and an event is characterized by at least one amplitude in the upper frequency range. The event having an amplitude in the upper frequency range is included in an envelope curve analysis, in which a lower power density and upper power density are determined for a lower and upper frequency range, respectively. A relative measured value is determined from the ratio of the upper power density to the lower power density, an evaluation of the event is made by means of the relative measured value, and the event is stored.
8 Citations
13 Claims
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1. A method for recording vehicle-relevant data, in particular for detecting and for evaluating minor damage to a vehicle in which structure-borne noise caused by an event, for example, caused by damage and/or a contact is detected and evaluated, comprising:
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recording the structure-borne noise with its entire frequency spectrum, dividing the frequency spectrum with a filter into a lower frequency range and into an upper frequency range, characterizing an event by at least one amplitude in the upper frequency range, wherein the event having an amplitude in the upper frequency range is included in an envelope curve analysis, in the envelope curve analysis for the lower frequency range, determining a lower power density and, for the upper frequency range, determining an upper power density, determining a relative measured value from the ratio of the upper power density to the lower power density, and evaluating the event by means of the relative measured value and storing the event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification