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公开(公告)号：US20220073314A1
公开(公告)日：2022-03-10
申请号：US17468180
申请日：2021-09-07
Applicant: KONE Corporation
Inventor： Tero Hakala , Tuukka Korhonen , Pasi Raassina , Antti Kallioniemi , Henry Piitulainen , Vuokko Löksy , Ari Koivisto
Abstract: The invention relates to a multicar elevator system, comprising: a plurality of elevator cars; an elevator shaft system; the plurality of the elevator cars and the elevator shaft system comprising a plurality of elevator components; a controller; the multicar elevator system further comprising: an elevator maintenance system configured to: receive the measurement data; determine the operational condition of the respective elevator component; and generate a maintenance signal for the at least one elevator component, a maintenance is scheduled in accordance with the operational condition of the respective at least one elevator component before a failure of the at least one elevator component. The invention also relates to a method and a computer program product.
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公开(公告)号：US10965224B2
公开(公告)日：2021-03-30
申请号：US15868828
申请日：2018-01-11
Applicant: KONE Corporation
Inventor： Henry Piitulainen , Seppo Suur-Askola , Tero Purosto
Abstract: A method for levitation control of a linear motor includes supplying an alternating current or alternating voltage to at least one oscillating circuit including at least one sensing coil being or assumed to be arranged in a fixed spatial correlation to a mover part of the linear motor such that an opening plane of the sensing coil faces a sensor counter-surface of a stator part of the linear motor with a gap therebetween; receiving a response signal from the oscillating circuit; determining a gap length of the gap based on the response signal; and controlling the gap length by driving a magnetic levitation unit of the linear motor based on the determined gap length. An inductive sensing device and an elevator system, and a method for determining a position of the linear motor are also disclosed.
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公开(公告)号：US20210024329A1
公开(公告)日：2021-01-28
申请号：US16916357
申请日：2020-06-30
Applicant: KONE Corporation
Inventor： Henry Piitulainen , Tuukka Korhonen , Antti Kallioniemi
IPC: B66B11/04 , B66B1/30 , B66B9/00 , H02K41/025
Abstract: The invention relates to a conveyor for passengers and/or goods, the conveyor comprising at least one linear electric motor formed by linear stator beams with stator poles being located in a fixed correlation to an environment, and at least one mover co-acting and moving along the stator beams, the stator beams comprising at least a first stator beam extending in a first movement path in a first direction of the passenger conveyor and at least a second stator beam extending in a second movement path in a second direction of the passenger conveyor, wherein the first direction and the second direction are different directions, selected from the group of horizontal, inclined and vertical direction, and which mover is adapted to face the respective stator poles of the stator beam, wherein the mover has at least one winding arranged to co-act with the stator poles; the linear motor being controlled by a motor drive, which is controlled by a drive control. The drive control comprises a set of control parameters, and whereby the drive control is configured to use at least partly different set of control parameters when associated with the first stator beam than with the second stator beam, and which drive control is further connected with an input for the position of the mover, and that the drive control is configured to select the control signals for the mover dependent on the location of the mover on either the first or second stator beam.
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