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AssigneeConti Temic microelectronic GmbH
InventorsReinhard Helldörfer, Günter Anton Fendt, Guido Wetzel, Lothar Weichenberger
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Disclosed is a device for activating a security system in a vehicle including a first and second vehicle sensor (4). The sensor include, respectively, a measuring value sensor (4.1) which can detect acceleration and structure-borne noise, and a central unit (2) which evaluates the signals of at least two vehicle sensors (4) and activates the security system according to the signals. The first and second vehicle sensors have a first direction of sensitivity for at least one measuring value sensor (4.1), which is used to detect acceleration, and a second direction of sensitivity for at least one measuring value sensor (4.1) which is used to detect structure-borne noise.
A device for activating a security system in a vehicle with at least two vehicle sensors (4), each of which can record vibrations in frequency ranges, which are generated both by an acceleration and by structure-borne noise, and which comprise in each case at least one measuring value sensor (4.1) for recording vibrations, and a central unit (2) which evaluates the signals from the vehicle sensors (4), and which activates the security system according to said signals,
A device according to any one of the above claims, characterised in that at least one measuring value sensor (4.1) records the longitudinal structure-borne noise.
A device according to any one of the above claims, characterised in that at least one measuring value sensor (4.1) is designed to enable a specific acceleration range to be programmed.
A device according to any one of the above claims, characterised in that the processing unit (4.2) comprises a filter for the selective recording of the acceleration and/or the structure-borne noise.
A device according to any one of the above claims, characterised in that the processing unit (4.2) is designed to record the signals from the measuring value sensor with a high amplitude, without overtravelling an amplifying circuit arranged in the processing unit (4.2).
A device according to any one of the above claims, characterised in that at least one measuring value sensor (4.1) is a piezoelectric sensor, a strain gauge, a micromechanical sensor or a magnetic restrictive sensor.
A procedure for activating a security system in a vehicle with at least two vehicle sensors (4), which record the vibrations in frequency ranges which are generated both by an acceleration and by structure-borne noise, and which comprises in each case at least one measuring value sensor (4.1) to record vibrations, and a central unit (2) which evaluates the sensor signals from the vehicle signals, and which activates the security system according to said signals, characterised in that in each case, the vehicle sensors
Dependencies are inferred from the claim text.