Abstract: In a sensor device for detecting moisture on a roadway of a vehicle, particularly a motor vehicle, with at least one structure-borne sound sensor, with at least one circuit carrier, wherein the structure-borne sound sensor is connected in a signal-conducting manner to the circuit carrier, it is provided in a manner important for the invention that at least one structure-borne sound sensor is arranged in a housing, that the housing has at least one flat constructed housing area, that the structure-borne sound sensor is connected to the flat constructed housing area, so as to conduct structure-borne sound signals, and in that the housing is constructed as a resonant body, that the at least one circuit carrier is arranged in the housing, that the housing is provided for mounting in a wheel arch of a vehicle, that at least one connecting means for producing a connection between the housing and the wheel arch is assigned to the housing, and that the connecting means is constructed to be vibration damping, at least

Abstract: A method for recognizing and classifying damage incidents and/or contact incidents, in particular on motor vehicles, the different forms of damage incident shall be detected, evaluated and classified by way of detecting and evaluating at least one impact sound signal. An amplitude envelope of the impact sound signal is determined and the impact sound signal is classified based on the time progression of the amplitude envelope. This involves assigning different damage incidents or contact incidents to different kinds of time progression of the amplitude envelope.

Abstract: In a method for determining the spatial position of damage on a glass body, in particular on a windshield of a vehicle, comprising at least one structure-borne sound sensor and at least one evaluation unit, it is provided according to the invention that the spatial position of a signal source of at least one structure-borne sound signal generated by means of the damage is detected, that the spatial position of the damage is concluded from the spatial position of the signal source, that the spatial position of the damage is checked for spatial overlapping with a predetermined region on the glass body, that this information goes into an information signal in the case of overlapping, and that the information signal is output.

Abstract: With a sensor device for detecting at least one contact event on a vehicle, in particular a motor vehicle, with at least one impact sound sensor for detecting at least one impact sound signal, at least one impact sound sensor comprises at least one signal-transferring connection to at least one signal processing means already existing in the vehicle and associated with at least one other sensor means. With this arrangement at least one impact sound sensor comprises an impact-sound-transmitting connection to a section of the outer shell of the vehicle. This allows contact events on the vehicle to be detected.

Abstract: A method for wireless signal transfer from a sensor to a sensor-controlled component is provided. The sensor records a measuring signal and utilises the energy recorded with the measuring signal for operating an associated transmission unit. The signal transmitted by the emission unit is determined by the amount of energy recorded with the measuring signal. This enables the sensor to be operated autonomously.

Abstract: A method is provided for detecting at least one structure-borne sound signal, in particular for detecting at least one damage event and/or at least one contact event. On a motor vehicle with a sensor, provision is made for a site of impact of the damage event and/or contact event to be determined by recording at least one measurement signal at a single sensor having a single structural unit, and for separately determining the distance between the sensor and the site of impact and the direction from which the structure-borne sound signal hits the single sensor. A device is also provided for detecting at least one structure-borne sound signal, in particular a structure-borne sound signal influenced by a damage event and/or contact event, with at least one sensor. The sensor has at least one storage device and at least one signal-transferring connection with at least one evaluation device.

Abstract: A method for recognising and classifying damage incidents and/or contact incidents, in particular on motor vehicles, the different forms of damage incident shall be detected, evaluated and classified by way of detecting and evaluating at least one impact sound signal. An amplitude envelope of the impact sound signal is determined and the impact sound signal is classified based on the time progression of the amplitude envelope. This involves assigning different damage incidents or contact incidents to different kinds of time progression of the amplitude envelope.