Arrangement and a method for a vehicle operable on electrical road systems

Method for detecting a signal cable in a road by a power collecting arrangement of a vehicle, the power collecting arrangement comprising first and second antennas transversely spaced and connected to a signal receiver, the method comprising:

• receiving, by each of the first and the second antenna, a signal emitted by the signal cable in a road, the signal having predetermined non-symmetric phase characteristics;
• detecting, by the signal receiver, a first and a second signal received by the first and second antenna;
• and
• matching phase characteristics of the first and second detected signal with a known signal having the non-symmetric phase characteristics of the emitted signal, and, determining that the signal cable is located between the first and second antenna when the first detected signal matches the known signal and when the second detected signal does not match the known signal.

Signal cable detection arrangement for a vehicle, the arrangement comprising:

• an antenna arranged to receive a signal emitted by a signal cable in a road, the signal having predetermined phase characteristics;
• and
• a signal receiver connected to the antenna, wherein the signal receiver is configured to:
• detect the signal received by the antenna and determine that the antenna is located vertically above the signal cable when a predetermined phase change is detected in the detected signal.