| Patent application number | Description | Published |
|---|
| 20090025998 | Arrangement for Determining an Absolute Tilt Angle in Relation to the Horizontal - A system determines an absolute tilt angle in relation to the horizontal, especially for use in a motor vehicle. The system includes at least one sensor element having a main axis of sensitivity and disposed such that its main axis of sensitivity lies in the plane of the tilt angle to be detected. The at least one sensor element produces a sensor signal depending on the tilt angle in relation to the horizontal. The sensor signal is a measured acceleration of the system. The system also includes a device for detecting an acceleration component of the measured acceleration and a processing unit to which the measured acceleration and the acceleration component are supplied in order to determine an acceleration component-corrected acceleration from which the absolute tilt angle of the system in relation to the horizontal can be determined. | 01-29-2009 |
| 20090276125 | Device and Method for Controlling a Passenger Protection System of a Vehicle - A device for controlling a passenger protection system of a motor vehicle includes at least one structure-borne noise sensor, used to receive body vibrations, and an evaluation device, used to evaluate the structure-borne noise signal. The evaluation provides information about an impact object and/or the characteristics of the impact. The evaluation device is configured to analyze the structure-borne noise signal in relation to the frequencies contained therein, wherein the frequency spectrum contained in a signal section is distributed into a plurality of frequency ranges. The current signal energy is determined for each frequency range, and the signal energy of the frequency range is a standardized. The device also comprises a passenger protection system, which can be actuated according to the information relating to the impact object and/or the characteristics of the impact. Further, the evaluation device is embodied such that during standardization, the signal energy of each frequency range is established in relation to the signal energy of a specific reference frequency range, and the resulting ratio course is compared to predetermined threshold values. | 11-05-2009 |
| 20100042296 | METHOD AND DEVICE FOR TRIGGERING A PERSONAL PROTECTION MEANS FOR A VEHICLE - A method and device for triggering a personal protection device for a vehicle, in particular, an occupant protection device in a vehicle. An acceleration sensor provides a first impact parameter Formula, compared with a triggering threshold value. A chassis noise sensor provides a second impact parameter Formula. The triggering threshold value is altered depending on the second impact parameter Formula. | 02-18-2010 |
| 20110071733 | DEVICE FOR DETECTING THE CHARACTERISTICS OF AN IMPACT INTO A MOTOR VEHICLE - A device for the detection of the characteristics of an impact into a motor vehicle includes at least one signal generating unit for generating a defined acoustic impulse sequence depending on the speed of the impact, particularly a structure-borne acoustic impulse sequence due to a deformation of a chassis component of the motor vehicle. The acoustic impulse sequence is generated by way of a mechanical activation of the signal generating device caused by the deformation. A sensor system is disposed to detect the defined acoustic impulse sequence. An analysis unit analyses the signals supplied by the sensor system such that information can be supplied on the characteristics of the impact. | 03-24-2011 |
| 20110190989 | METHOD FOR DETERMINING A CRITERION OF THE SEVERITY OF AN ACCIDENT BY MEANS OF AN ACCLERATION SIGNAL AND A SOLID-BORNE SOUND SIGNAL - A method for determining a criterion of the severity of an accident by means of an acceleration signal and a solid-borne sound signal. The signal edge direction of the absolute value of the acceleration signal is detected. If the signal edge of the absolute value of the acceleration signal drops, the solid-borne sound signal which occurs in the process is evaluated. The solid-borne sound signal may be integrated and the criterion of the severity of the accident is derived therefrom. This criterion of the severity of the accident can be used directly, or as a function of criteria, to trigger the protection devices. | 08-04-2011 |
