| 摘要 |
PURPOSE:To perform stable speed control at the time of running at a low speed and further so as to improve accuracy of arriving at a target story by performing the speed control based on a detection value of a flow amount of oil when an elevator approaches the target story to advance into low speed running. CONSTITUTION:After deceleration of an elevator approaching an aimed story, when a speed is detected to provide V1 by a speed detector 18, control is advanced into speed control based on a flow amount. The elevator approaches the aimed story by gradually reducing volume V of the amount of oil corresponding to a residual running distance S. Further, the flow amount is decreased by gradually closing a flow control valve in a valve 9. In this way, also a reduction amount of the volume V of the amount of oil corresponding to the residual running distance S is decreased. Here, an oil amount volume V(n), corresponding to the residual running distance at this time is obtained as in the expression. In a low speed time control command value creating part 23, a control current command value I(n) is obtained based on the volume V(n) obtained from this expression, and the valve is controlled based on this control current command value. |
