| 摘要 |
PURPOSE:To quickly open/close a windowpane through an easy operation by operating a slide operating variable resistor, and operating a position servo system being constituted along with a position detecting variable resistor interlocking with a driving part of the windowpane. CONSTITUTION:In this device, there are provided with a slide operating variable resistor VRc and a position detecting variable resistor VRm interlocking with a driving part for a windowpane. Also, there is provided with a turn signal circuit 2 which emits a command for up and down of the windowpane after comparing a position setting voltage Vref with a position detecting voltage Vw, being formed by these variable resistors VRc, VRm. Ub addition, a driving control circuit 4, controlling a windowpane drive motor on the basis of this command, is installed there. Then, a position servo system is actuated by operating the slide operating variable resistor VRc, opening or closing the windowpane. In this connection, in and around a windowpane lifting end, the ratio of a manupulated variable to a controlled variable is made smaller and thereby fine adjustment at time of its small opening is facilitated. |
