Patent ID: 9233815
Filing Date: 2016-01-12
CPC Classification: B66B,H02P

Claim Text:
1. An elevator controlling method, comprising: calculating the positional value of an elevator driving motor the every first cycle; generating a control signal every third cycle to control the motor based on the calculated positional value and the rotational speed of the motor calculated every second cycle; and controlling the driving power source of the motor based on the generated control signal, wherein the generating of the control signal comprises: taking a proportional and integral action on the difference between the position-controlled value and the calculated positional value of the motor; calculating a torque-controlled value based on subtraction of a value obtained by multiplying the rotational speed by a first constant and a value obtained by multiplying the positional value by a second constant, from a value obtained through the proportional and integral action; and generating a torque-controlled signal according to the calculated torque-controlled value.