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US 8,948,961 B2Granted
Apparatus and method for detecting a pedestrian impact
AssigneeRobert Bosch GmbH
InventorsFrank Mack, Sascha Steinkogler
Life of this patent
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Abstract
A method and an apparatus for detecting a pedestrian impact, at least three acceleration sensors being provided which are respectively mounted on the inner side of the bumper cladding and each generate a signal. The pedestrian impact is detected as a function of a time offset between at least two of the three signals. The impact location is identified on the basis of the at least one time offset.
Claims20
An apparatus for detecting a pedestrian impact, comprising:
- at least three acceleration sensors respectively mounted on an inner side of a bumper cladding, each of the sensors generating a respective signal, the signals occurring responsive to a pedestrian impact;
- an evaluation circuit that is configured to:
- as a function of a time offset between at least two of the three signals:
- identify an impact location of the pedestrian impact;
- and
- weight the signals with different respective weights;
- and
- as a function of the weighted signals, detect an additional characteristic of the pedestrian impact;
- wherein the time offset represents a difference in time from when one of the signals exceeds a noise threshold and another signal exceeds the noise threshold.
6 more elements
A method for detecting a pedestrian impact, comprising:
- generating a respective signal responsive to a pedestrian impact and by each of at least three acceleration sensors which are respectively mounted on an inner side of a bumper cladding;
- as a function of a time offset between at least two of the three signals:
- identifying an impact location of the pedestrian impact;
- and
- weighting the signals with different respective weights;
- and
- detecting an additional characteristic of the pedestrian impact as a function of the weighted signals;
- wherein the time offset represents a difference in time from when one of the signals exceeds a noise threshold and another signal exceeds the noise threshold.
5 more elements
Dependencies are inferred from the claim text.