| 发明名称 |
ELEVATOR BRAKING IN A BATTERY POWERED ELEVATOR SYSTEM |
| 摘要 |
An elevator system includes a battery; a machine having a motor to impart motion to an elevator car; an inverter having a plurality of switches to convert DC power from the battery to AC power for the machine in a motoring mode; a speed sensor coupled to the machine, the speed sensor to generate a speed signal indicative of machine speed; and a controller to apply braking signals to a group of the switches in a braking mode, the braking signals having a duty cycle in response to the speed signal. |
| 申请公布号 |
US2016194179(A1) |
申请公布日期 |
2016.07.07 |
| 申请号 |
US201314911378 |
申请日期 |
2013.08.13 |
| 申请人 |
OTIS ELEVATOR COMPANY |
发明人 |
Agirman Ismail;Marvin Daryl J. |
| 分类号 |
B66B1/32;H02P3/18;H02P27/06 |
主分类号 |
B66B1/32 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An elevator system comprising:
a battery; a machine having a motor to impart motion to an elevator car; an inverter having a plurality of switches to convert DC power from the battery to AC power for the machine in a motoring mode; a speed sensor coupled to the machine, the speed sensor to generate a speed signal indicative of machine speed; and a controller to apply braking signals to a group of the switches in a braking mode, the braking signals having a duty cycle in response to the speed signal. |
| 地址 |
Farmington CT US |
