发明名称 |
Controlling sway of elevator rope using movement of elevator car |
摘要 |
A method reduces a sway of an elevator rope supporting an elevator car by controlling a tension of the elevator rope. The tension is controlled using a movement of the elevator sheave according to a control law of the tension of the elevator rope between two points. The first point is associated with a contact of the elevator rope with the elevator sheave. The second point is associated with a contact of the elevator rope with the elevator car or a counterweight of the elevator car. The control law is a function of one or combination of a relative position, a relative velocity and a relative acceleration between the first and the second points. |
申请公布号 |
US9475674(B2) |
申请公布日期 |
2016.10.25 |
申请号 |
US201313933290 |
申请日期 |
2013.07.02 |
申请人 |
Mitsubishi Electric Research Laboratories, Inc. |
发明人 |
Benosman Mouhacine;Fukui Daiki;Watanabe Seiji;Nakazawa Daisuke |
分类号 |
B66B1/28;B66B7/06 |
主分类号 |
B66B1/28 |
代理机构 |
|
代理人 |
Vinokur Gene;McAleenan James;Tsukamoto Hironori |
主权项 |
1. A method for reducing a sway of an elevator rope supporting an elevator car within an elevator system using a main sheave of the elevator system, comprising:
controlling, using a movement of the main sheave, a tension of the elevator rope according to a control law of the tension between a first point and a second point of the elevator rope, wherein the first point is associated with a contact of the elevator rope with an elevator sheave and the second point is associated with a contact of the elevator rope with the elevator car or a counterweight of the elevator car, wherein the control law is a function of one or combination of a relative position, a relative velocity and a relative acceleration between the first and the second points, wherein the controlling comprises: determining a state of the sway of the elevator rope and a state of the elevator car; controlling a movement of the elevator car according to the control law, wherein the control law is a combination of a function of the state of the sway and a function of the state of the elevator car, wherein the function of the state of the sway is determined such that a frequency of the function of the state of the sway is proportional to a frequency of the sway, and wherein the function of the state of the elevator car is determined such that a frequency of the function of the state of the elevator car is different than the frequency of the function of the state of the sway; and repeating periodically the determining and the controlling until a maximum amplitude of the sway is below a threshold, wherein steps of the method are performed by a processor. |
地址 |
Cambridge MA US |