Inclination angle determining device for e.g. tractor-trailer, has antennas arranged at vehicle members, respectively and controller determining distance and/or angle between antennas from radio signals of one antenna

摘要

The device has an antenna (5) fixedly arranged at a vehicle member (2) e.g. tractor, and another antenna (6) fixedly arranged at another vehicle member (3) e.g. semi-trailer. A commercial motor vehicle (1) e.g. tractor-trailer, includes a controller to determine a distance and/or an angle between the antennas from radio signals of one of the antennas, where the radio signals are received from the other antenna. The former antenna is arranged at the former vehicle member at a height corresponding to a lower surface of the latter vehicle member. An independent claim is also included for a method for determining an inclination angle between two vehicle members.