Patent Document ID: 20080179143
Application ID: 12068861
Patent Flag: 0

Claim One:
1. A method for improving the performance of an elevator system, said elevator system comprising at least one elevator, said elevator comprising at least one elevator door and at least one door operator for opening and closing said elevator door, characterized in that the method comprises the steps of: measuring the acceleration and/or velocity of at least one of the aforesaid elevator doors and the torque of a door motor moving the elevator door; creating for the elevator door a dynamic model incorporating the forces acting on the elevator door; estimating kinetic parameters of the elevator door via the use of the aforesaid measured acceleration or the aforesaid measured velocity and the aforesaid measured torque and the dynamic model of the elevator door; and optimizing the operation of the elevator door via the use of the estimated kinetic parameters to improve the performance of the elevator system.