METHOD AND APARATUS FOR INCREASING THE TRAFFIC HANDLING PERFORMANCE OF AN ELEVATOR SYSTEM

摘要

A method and apparatus for utilizing unused power available in an elevator that is not fully loaded to improve the traffic handling capacity of an elevator system (1). The present invention can be used to provide an optimiz ed velocity profile for an elevator based on the pre-designed power of the driv e motor (11) and the actual load in the elevator.The invention can achieve velocities higher than the design velocity of the elevator system (1). The method also utilizes surplus torque available to the motor (11) during a tri p to produce an optimized velocity profile that has a short trip time, yet doe s not exceed the torque deliverable by the motor (11) and does not exceed acceptable discomfort levels to the passengers or the mechanical limitations on the system (1).