SELECTIVE ELEVATOR BRAKING DURING EMERGENCY STOP

摘要

A method for controlling movement of an elevator car (20) during an emergency stop (S1) comprising the steps of determining a load of the car (S4;S8;S9;S10), determining a travel direction of the car (S3) and monitoring a speed (V) of the car (S6). When the car is travelling downwards (S3) and is lightly loaded (S8) or when the car is travelling upwards (S3) and is heavily loaded (S10), brake torque is applied (S7) only when the speed (V) of the car reaches zero.