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公开(公告)号：US10029883B2
公开(公告)日：2018-07-24
申请号：US15270857
申请日：2016-09-20
Applicant: KONE Corporation
Inventor： Lauri Stolt , Matti Räsänen , Mika Alvesalo
Abstract: An elevator includes an elevator car and lifting machinery including a traction sheave, an electromechanical machinery brake, and an electric motor having a rotor. The traction sheave, the electromechanical machinery brake and the rotor of the electric motor are connected via a shaft, whereby the lifting machinery moves the elevator car upwards and downwards in a vertically extending elevator shaft controlled by a main control unit. The direction of rotation and the rotation speed of the rotor of the electric motor is detected with a sensor, the amplitude of the brake current provided to the machinery brake is measured, the amplitude of the brake current is increased until a first moment when the shaft and thereby also the rotor of the electric motor starts to rotate, which is detected by the sensor, the brake current is disconnected momentarily at the first moment, the torque acting on the shaft and the corresponding load in the elevator car at the first moment is determined based on the measured amplitude of the brake current at the first moment, whereby said torque is used in the main control unit for controlling the lifting machinery.
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12.发明申请公开(公告)号：US20150053507A1
公开(公告)日：2015-02-26
申请号：US14533764
申请日：2014-11-05
Applicant: KONE Corporation
Inventor： Ari Kattainen , Pasi Raassina , Tapio Saarikoski , Lauri Stolt , Arto Nakari , Antti Kallioniemi
CPC classification number: B66B5/02 , B66B1/30 , B66B1/32 , B66B5/00 , B66B5/0031 , B66B5/06 , B66B13/22
Abstract: A brake controller, an elevator system and a method for performing an emergency stop are provided. The brake controller includes an input for connecting the brake controller to the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator, an output for connecting the brake controller to the electromagnet of the brake, a switch for supplying electric power from the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator via the output to the electromagnet of a brake, and also a processor with which the operation of the brake controller is controlled by producing control pulses in the control pole of the switch of the brake controller.
Abstract translation: 提供一种制动控制器，电梯系统和执行紧急停止的方法。 制动控制器包括用于将制动控制器连接到驱动电梯的曳引机的变频器的直流中间电路的输入端，用于将制动控制器连接到制动器的电磁体的输出端， 变频器的直流中间电路通过输出向电梯的曳引机驱动制动器的电磁体，以及处理器，其通过在开关的开关的控制极中产生控制脉冲来控制制动控制器的操作 制动控制器。
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公开(公告)号：US20210300722A1
公开(公告)日：2021-09-30
申请号：US17184715
申请日：2021-02-25
Applicant: KONE Corporation
Inventor： Lauri Stolt , Mikko Paakkinen , Tuukka Kauppinen
Abstract: A method for identifying parameters, such as a magnetization-axis and torque-axis inductances, of a permanent magnet motor of an elevator includes applying, such as by a brake controller, at least one hoisting machinery brake to prevent rotation of a rotor of the permanent magnet motor, determining, by a first method, a mean value of motor inductance, as well as the magnetization-axis inductance and the torque-axis inductance as relative inductance values based on the mean value, determining, by a second method, being different than the first method, a mean value of motor main inductances, and determining absolute values of the magnetization-axis and the torque axis inductances based on the motor main inductance obtained by the second method and the relative inductance values obtained by the first method.
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14.发明申请公开(公告)号：US20200287485A1
公开(公告)日：2020-09-10
申请号：US16794623
申请日：2020-02-19
Applicant: KONE Corporation
Inventor： Tuukka Kauppinen , Lauri Stolt , Mikko Paakkinen
Abstract: A method for determining a rotor position of an electric motor, an elevator and an electrical converter unit are presented. The method comprises supplying a first excitation signal to the electric motor, determining a first response signal generated in the motor in response to the first excitation signal, determining, based on the first response signal, an electrical angle of a direct axis of the motor with respect to a stationary reference frame, supplying a second excitation signal to the motor, wherein the second excitation signal is based on the determined electrical angle, determining a second response signal generated in the motor in response to the second excitation signal, and determining the rotor position based on the second response signal.
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15.发明授权公开(公告)号：US10196237B2
公开(公告)日：2019-02-05
申请号：US15051277
申请日：2016-02-23
Applicant: KONE Corporation
Inventor： Ari Kattainen , Antti Hovi , Petteri Kangas , Lauri Stolt
Abstract: A method for performing an emergency stop with an elevator and a safety arrangement of an elevator. In the method, when an emergency stop criterion is fulfilled, the elevator car is driven with the electric motor of the hoisting machine to a stop with a given deceleration profile.
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Patent Agency Ranking
公开(公告)号：US09802790B2
公开(公告)日：2017-10-31
申请号：US14532753
申请日：2014-11-04
Applicant: KONE Corporation
Inventor： Ari Kattainen , Pasi Raassina , Tapio Saarikoski , Lauri Stolt , Arto Nakari , Antti Kallioniemi
CPC classification number: B66B5/02 , B66B1/30 , B66B1/32 , B66B5/00 , B66B5/0031 , B66B5/06 , B66B13/22
Abstract: A drive device of an elevator includes a DC bus, a motor bridge connected to the DC bus for the electricity supply of the elevator motor, a control circuit with which control circuit the operation of the motor bridge is controlled by producing control pulses in control poles of high-side and low-side switches of the motor bridge, a brake controller, which comprises a switch for supplying electric power to an electromagnetic brake, a brake control circuit, with which the operation of the brake controller is controlled, an input circuit for the safety signal to be disconnected/connected from outside the drive device, drive prevention logic and brake drop-out logic connected to the input circuit and configured to prevent the passage of control pulses to the control poles of the high-side and/or low-side switches when the safety signal is disconnected.
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公开(公告)号：US10972015B2
公开(公告)日：2021-04-06
申请号：US14674546
申请日：2015-03-31
Applicant: KONE Corporation
Inventor： Lauri Stolt , Juhamatti Nikander
Abstract: The invention is related to a method of initiating a regenerative converter (1) and corresponding converter (1) including a line bridge (2) and a machine bridge (3), which are interconnected via a DC intermediate circuit (8A, 8B). The method comprises charging, through the line bridge (2) and while the machine bridge (3) remains inactive, the DC intermediate circuit (8A, 8B) to a target voltage (14) higher than peak value of the mains voltage (13).
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公开(公告)号：US10934133B2
公开(公告)日：2021-03-02
申请号：US15804583
申请日：2017-11-06
Applicant: KONE Corporation
Inventor： Ari Kattainen , Juha-Matti Aitamurto , Lauri Stolt
Abstract: A safety arrangement of an elevator and a method for monitoring electrical safety in an elevator system is disclosed. The safety arrangement of an elevator includes a motor drive of the elevator, which motor drive includes a main circuit, an accessible conducting part, which is earthed, an insulator, which is adapted to electrically insulate the aforementioned conducting part from the aforementioned main circuit and also a monitoring circuit, which is configured to determine an earth fault of the aforementioned main circuit occurring via the aforementioned conducting part. The monitoring circuit is configured to form a signal indicating the danger of electric shock in the motor drive of the elevator, if the aforementioned earth fault is diagnosed.
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19.发明授权公开(公告)号：US09912265B2
公开(公告)日：2018-03-06
申请号：US14601979
申请日：2015-01-21
Applicant: KONE Corporation
Inventor： Lauri Stolt
CPC classification number: H02P6/10 , H02P6/06 , H02P29/50 , H02P2209/07
Abstract: Invention is related to a method for controlling an alternating current electric machine with a frequency converter including a controllable machine bridge and a controllable line bridge, and a corresponding frequency converter. The method comprises calculating a line bridge control signal, controlling line current through the line bridge using the line bridge control signal, measuring or estimating rotor pole position of the electric machine, calculating a machine bridge control signal as a function of the rotor pole position, updating the machine bridge control signal when the rotor pole position changes, and controlling current of the electric machine through the machine bridge using the machine bridge control signal.
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公开(公告)号：US20180057308A1
公开(公告)日：2018-03-01
申请号：US15804583
申请日：2017-11-06
Applicant: KONE Corporation
Inventor： Ari Kattainen , Juha-Matti Aitamurto , Lauri Stolt
Abstract: A safety arrangement of an elevator and a method for monitoring electrical safety in an elevator system is disclosed. The safety arrangement of an elevator includes a motor drive of the elevator, which motor drive includes a main circuit, an accessible conducting part, which is earthed, an insulator, which is adapted to electrically insulate the aforementioned conducting part from the aforementioned main circuit and also a monitoring circuit, which is configured to determine an earth fault of the aforementioned main circuit occurring via the aforementioned conducting part. The monitoring circuit is configured to form a signal indicating the danger of electric shock in the motor drive of the elevator, if the aforementioned earth fault is diagnosed.
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