3D Ultrasonic Wire Laying for Ice-Free Car Bodies The concept of "autonomous driving" is dependent on a large number of sensors. This also includes ultrasonic sensors installed at different positions in the vehicle. It is essential that the car body parts behind which the sensors are placed are ice-free even in winter. So far, solutions for sub-zero temperatures that originate from the production of window heaters have been tested. Wire structures are applied to a film and then joined to a body component by overmoulding or bonding. The machine developer Ruhlamat, in cooperation with a robot manufacturer, has developed an innovative solution that makes this additional work step unnecessary and is more flexible in the design of wire structures on 3D contours.