| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening and closing controller for a lining member for an opening capable of permitting a high accuracy position detection by a simple treatment by adopting only a rotation sensor. SOLUTION: Pulse signals ICa and ICb with different phases generated by two Hall IC's based on the revolutions of an electric motor driving the lining member for opening are input simultaneously, and the turning direction of the electric motor is judged by the other signal level when one side detects an edge. For example, when ICa: rise and ICb: LO, or ICa: fall and ICb: HI, the electric motor is positive rotation (turning direction CW), in the case of ICa: rise and ICb: HI, or ICa: fall and ICb: LO, the electric motor is reverse rotation (turning direction CCW). By accumulating the revolutions of the electric motor in each direction, the position of the lining member for opening can be detected. |
