Valeo Schalter Und Sensoren Gmbh

Sylvio Salomon

Uwe Kupfernagel

Marian Roeger

Thomas Jung

Steffen Jaeger

A method for contact detection for an ultrasonic sensor system installed in a concealed or unconcealed manner is disclosed. The method involves detecting reference surroundings information, comprising a time profile of a signal with: noise signal information relating to a wall material and/or airborne sound signal information, using an ultrasonic sensor of the ultrasonic sensor system; storing the reference surroundings information; detecting real-time surroundings information, comprising a time profile of a signal with: noise signal information relating to the wall material and/or airborne sound signal information and/or object sound signal information relating to an object in contact with the wall material, using the ultrasonic sensor; and forming a difference signal between the surroundings information of reference surroundings information and real-time surroundings information, using a computational unit. The difference signal can be interpreted in a further step.

Contact detection by means of an ultrasonic sensor system

The present invention relates to a method for computational noise compensation for an ultrasonic sensor system () that is mounted in a concealed manner, in particular for a vehicle with a wall material (), including the following steps: The present invention also relates to a system for computational ultrasound compensation having means for performing the steps of the method. The present invention further relates to a vehicle having the system for computational ultrasound compensation. The present invention furthermore relates to a computer program, to a data carrier signal, and to a computer-readable medium.

Computational noise compensation for ultrasonic sensor systems

The invention relates to an ultrasonic sensor () for use in a distance detection system () for a vehicle (), wherein the ultrasonic sensor () is designed to be installed jointly with at least one other ultrasonic sensor (), the ultrasonic sensor () has a first input () for connection to a supply lead (), the ultrasonic sensor () has a second input () for connection to a ground potential () of the vehicle (), and the ultrasonic sensor () has an output () for connection to the supply lead (), wherein the ultrasonic sensor () is designed to receive a data signal modulated on the supply lead () via the first input () and to modulate a data signal onto the supply lead () via the output (). The invention also relates to a distance detection system () for a vehicle () having a plurality of the above ultrasonic sensors (), wherein the ultrasonic sensors () are connected to each other in the form of a chain, the output () of a preceding ultrasonic sensor () being connected to the first input () of a subsequent ultrasonic sensor (), a first ultrasonic sensor () in the chain is connected with its first input () to a supply voltage (), and a final ultrasonic sensor () in the chain is connected with its output () to a signalling unit ().

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Bietigheim-Bissingen, Germany

Sylvio Salomon