Title:
ELEVATOR OUTAGE EMERGENCY CONTROL METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/252678
Kind Code:
A1
Abstract:
An elevator outage emergency control method and device. The elevator outage emergency control method comprises the following steps: detecting that a power grid is in a power-off state, and acquiring a current running state of an elevator traction machine and a bus voltage value; if the current running state of the elevator traction machine is a motor state, and the bus voltage value is continuously reduced within a preset time, acquiring first energy provided by standby energy of an elevator, second energy generated by decelerating the elevator to a leveling speed, third energy consumed by decelerating the elevator to the leveling speed, and fourth energy consumed by the elevator performing a leveling action; and when the sum of the first energy and the second energy is less than the sum of the third energy and the fourth energy, instructing the elevator to decelerate to zero, and when the speed of the elevator is zero, controlling the elevator to perform the leveling action. Moreover, an elevator outage emergency control device is provided. According to the method and the device, after the power grid is powered off, the elevator can be slowly decelerated and stopped and then run for leveling, thereby achieving the safe rescue of the elevator, reducing the impact force during the running of the elevator, and improving the safety of the elevator.
Inventors:
RONG HONGKAI (CN)
ZHONG ZHAOFENG (CN)
TANG QIWEI (CN)
LIU ZHEN (CN)
YUAN JUNBO (CN)
GUO YAO (CN)
LAI MINGUI (CN)
ZHONG ZHAOFENG (CN)
TANG QIWEI (CN)
LIU ZHEN (CN)
YUAN JUNBO (CN)
GUO YAO (CN)
LAI MINGUI (CN)
Application Number:
PCT/CN2022/075881
Publication Date:
December 08, 2022
Filing Date:
February 10, 2022
Export Citation:
Assignee:
HITACHI BUILDING TECH GUANGZHOU CO LTD (CN)
International Classes:
B66B1/30; B66B5/00; B66B5/02
Foreign References:
| CN113401761A | 2021-09-17 | |||
| CN110697521A | 2020-01-17 | |||
| CN108792869A | 2018-11-13 | |||
| CN108657893A | 2018-10-16 | |||
| JP2001008459A | 2001-01-12 | |||
| DE2354058A1 | 1974-05-16 | |||
| JP2001114482A | 2001-04-24 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
Download PDF:
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