Abstract
Method for measuring a lateral displacement to a guide wire buried beneath the road surface in the field with the electro-magnetic guidance is proposed. Electro-magnetic guidance has been used for automated guidance of golf carts for several decades and proven its reliability. Currently, some of low-speed automated vehicles on public road use the same method for reliable operation. If a lateral displacement of a vehicle to the guide wire is easily measured, various type of vehicles can realize reliable automated driving on the road with electro-magnetic guidance. This paper proposes an electric module and algorithm for the above purpose and reports results of experimental evaluation.