| 摘要 |
PURPOSE:To simplify the control system and also to reduce number of components by controlling simultaneously an angle control motor and a drive motor with a deviation of a detection output at curve running. CONSTITUTION:Since the detected output of an alternating magnetic field from an guide line 18 by detecting coils 16, 17 is the same when a golf cart is at a position A, no angle control motor 10 is activated and a caster 9 runs on the guide line 18 at a high speed. On the other hand, when the golf cart is at a position B, since the guide line 18 is positioned at the right side, the induced electromotive force of the right coil 16 is larger than that of the left coil 17, the motor 10 is activated so as to direct the caster 9 to the right and bring the cart along the guide line. The duty of a chopper circuit 27 is less than 100% by the output of an absolute value circuit 26 so as to decelerate the drive motor 28 in this case. The tracking performance of the golf cart to the guide line 18 is improved with simple constitution in this way. |
