公开(公告)号：US20170210595A1

公开(公告)日：2017-07-27

申请号：US15383128

申请日：2016-12-19

Applicant: LSIS CO., LTD.

Inventor： Ju-Beom SON

IPC: B66B1/30 ,  B66B5/02 ,  B66B5/00

CPC classification number: B66B1/30 ,  B66B5/0018 ,  B66B5/021 ,  B66B5/027 ,  B66B2201/00

Abstract: The present invention relates to a method for controlling an operation of an elevator, which is capable of moving the elevator to a near floor by using an auxiliary power supply such as a battery in an emergency situation where a commercial power supply cannot be used, while minimizing power consumption through automatic control. The method includes: detecting the current operation zone of the elevator when an auxiliary power supply driving situation occurs; and operating the elevator by using the auxiliary power supply to correspond to the detected current operation zone. The detected current operation zone corresponds to one of an acceleration zone, a constant speed zone, a creep zone and a seating zone.

公开(公告)号：US20180254624A1

公开(公告)日：2018-09-06

申请号：US15660224

申请日：2017-07-26

Applicant: LSIS CO., LTD.

Inventor： Ju-Beom SON

IPC: H02H1/00 ,  H02M5/40 ,  H02H7/10

CPC classification number: H02H1/0007 ,  H02H3/044 ,  H02H7/10 ,  H02H9/001 ,  H02M1/32 ,  H02M5/40

Abstract: An apparatus for detecting a fault in a power relay of an inverter is disclosed. The apparatus for detecting a fault in a power relay includes: a voltage sensor configured to measure a voltage of a DC link; a current sensor configured to measure an output current applied to an inverter stage; a storage unit configured to store resistance of an initial charge resistor, a time constant of a capacitor, and a reference voltage measured when voltage drop of the DC link does not occur; and a controller configured to determine, when the voltage drop of the DC link occurs, the presence or absence of a fault in the power relay based on a difference between the reference voltage and a voltage measured after lapse of a period corresponding to the time constant.