CONTROL APPARATUS FOR ELEVATORS

A control apparatus for elevators in which one cycle of a fluctuating demand is divided into a plurality of sections, the demand in each section or a service condition value of the elevators for the demand is measured, the demand or the service condition value of the corresponding section is estimated from the measured value, and decision means is comprised to compare the estimated value and the measured value obtained anew and to decide the compared result, so that when the compared result has been decided to fail in satisfying a reference condition, cages are controlled with a value set separately from the estimated value or a value separately calculated for estimation. This brings forth the effect that, even when the measured value has become different from an ordinary value due to the occurrence of a special traffic condition, it is not used for the calculation of the estimative value, so as to permit an accurate estimation when an ordinary traffic condition has been thereafter restored.