Image Number 4 for United States Patent #4253541.
A steering control system of a type wherein an unmanned vehicle is transferred from one cable to another of two crossing cables by a programmed turning operation. According to the invention, a smooth transferring of the vehicle from the programmed turning to a guided travel along the other cable can be achieved. Conditions for the transferring of the vehicle are: (a) an output of a posture angle detection coil is within a predetermined low range, (b) the vehicle has moved by a predetermined distance after starting of the programmed turning and (c) the vehicle is not out of course, i.e. an output of a reference phase detection coil is greater than a preset value.