-
公开(公告)号：US20200283261A1
公开(公告)日：2020-09-10
申请号：US16807930
申请日：2020-03-03
Applicant: KONE Corporation
Inventor： Alessio Calcagno , Lauri Stolt , Petteri Kangas , Risto Jokinen
IPC: B66B1/32
Abstract: A method includes commanding a brake controller to open a machinery brake, measuring the brake current of the machinery brake, and when the measured brake current does not meet or exceed a predetermined threshold value within a predetermined time period, then generating a signal indicating failure of the machinery brake and cancelling the elevator run sequence, else executing the elevator run sequence.
-
公开(公告)号：US09873591B2
公开(公告)日：2018-01-23
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.
-
公开(公告)号：US09776829B2
公开(公告)日：2017-10-03
申请号：US14533603
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: The invention relates to a safety arrangement of an elevator, which includes sensors configured to indicate functions that are critical to the safety of the elevator, and also a safety circuit, with which the data formed by the sensors indicating the safety of the elevator is read. The safety arrangement includes a drive device including a control circuit of a motor bridge, an input circuit for a safety signal that can be disconnected/connected from outside the drive device, and also drive prevention logic, to prevent the passage of control pulses to the control poles of high-side and/or low-side switches of the motor bridge when the safety signal is disconnected. The safety circuit brings the elevator into a state preventing a run by disconnecting the safety signal and removes the state preventing a run by connecting the safety signal.
-
公开(公告)号：US20150053508A1
公开(公告)日：2015-02-26
申请号：US14533603
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 safety arrangement of an elevator, which includes sensors configured to indicate functions that are critical from the viewpoint of the safety of the elevator, and also a safety circuit, with which the data formed by the sensors indicating the safety of the elevator is read. The safety arrangement includes a drive device for driving the hoisting machine of the elevator. The drive device includes a DC bus, and also a motor bridge connected to the DC bus for the electricity supply of the elevator motor. The motor bridge includes high-side and low-side switches for supplying electric power from the DC bus to the elevator motor when driving with the elevator motor, and also from the elevator motor to the DC bus when braking with the elevator motor. The drive device also includes a control circuit of the motor bridge, with which control circuit the operation of the motor bridge is controlled by producing control pulses in the control poles of the high-side and low-side switches of the motor bridge, an input circuit for a safety signal, which safety signal can be disconnected/connected from outside the drive device, and also drive prevention logic, which is connected to the input circuit and is configured to prevent the passage of control pulses to the control poles of the high-side and/or low-side switches of the motor bridge when the safety signal is disconnected. The signal conductor of the safety signal is wired from the safety signal to the drive device, and the safety circuit comprises means for disconnecting/connecting the safety signal. The safety circuit is arranged to bring the elevator into a state preventing a run by disconnecting the safety signal, and the safety circuit is arranged to remove the state preventing a run by connecting the safety signal.
Abstract translation: 电梯的安全装置，其包括被配置为指示从电梯的安全性的观点来看至关重要的功能的传感器以及由传感器形成的指示电梯的安全性的数据的安全电路。 安全装置包括用于驱动电梯的曳引机的驱动装置。 驱动装置包括DC总线，以及连接到DC总线的马达桥，用于电梯电机的电力供应。 马达桥包括用于在与电梯马达一起驱动时从DC总线向电梯马达提供电力的高侧和低侧开关，以及当与电梯马达制动时从电梯马达向DC总线供电。 驱动装置还包括马达桥的控制电路，控制电路通过在马达桥的高侧和低侧开关的控制极中产生控制脉冲来控制马达桥的运行，输入 用于安全信号的电路，该安全信号可以从驱动装置的外部断开/连接，以及驱动防止逻辑，其连接到输入电路，并且被配置为防止控制脉冲通过到高电平的控制极 当安全信号断开时，电机桥的侧面和/或低侧开关。 安全信号的信号导线从安全信号连接到驱动装置，安全电路包括用于断开/连接安全信号的装置。 安全电路被布置成通过断开安全信号使电梯进入阻止运行的状态，并且安全电路被布置成通过连接安全信号来去除防止运行的状态。
-
公开(公告)号：US20240294356A1
公开(公告)日：2024-09-05
申请号：US18432650
申请日：2024-02-05
Applicant: Kone Corporation
Inventor： Lauri Stolt
Abstract: In an elevator and a method for energizing an elevator safety apparatus, the elevator includes an elevator car, adapted for transferring passengers and/or cargo between landing floors; an elevator hoisting machine for operating the elevator car; a drive unit for driving the hoisting machine; and an elevator safety apparatus including at least one of a sensor, an indicator, a control unit and an actuator for ensuring safe elevator operation. The drive unit is configured for delivering supply voltage to said elevator safety apparatus by controlling braking of the elevator hoisting machine with a braking control mode designed for energizing the safety apparatus without need for an additional backup power supply, in case of an elevator power cut.
-
Patent Agency Ranking
公开(公告)号：US12030743B2
公开(公告)日：2024-07-09
申请号：US17182747
申请日：2021-02-23
Applicant: Kone Corporation
Inventor： Ari Kattainen , Lauri Stolt
CPC classification number: B66B5/0025 , B66B1/3476 , B66B5/0031 , B66D5/14 , B66D5/30 , G01G19/14
Abstract: Brake release sensors for an elevator can be replaced by an arrangement wherein the brake release is determined from the force caused by the brake. This is achieved by providing measuring device for measuring the weight of an elevator car between the brake and the motor body so that the weight of the elevator car is measured only when the brake is on.
-
公开(公告)号：US20220169479A1
公开(公告)日：2022-06-02
申请号：US17672150
申请日：2022-02-15
Applicant: KONE Corporation
Inventor： Mikko Paakkinen , Lauri Stolt , Tuukka Kauppinen
IPC: B66B1/30 , H02M1/08 , H02M7/5395 , B66B1/28
Abstract: An electrical converter unit and a method for reducing thermal stress of a power semiconductor switch, such as an IGBT, of an electrical converter unit, the electrical converter unit comprising at least a gate control circuit wherein the electrical converter unit controls an electrical motor. The method comprises determining load and estimating required motor current based on the determined load and/or a predetermined speed profile. The electrical converter unit has at least a first operating state and a second operating state. The second operating state is used if predetermined criteria is fulfilled, the predetermined criteria relating to at least one of the following: estimated required current, measured motor speed, temperature of the power semiconductor switch and/or electrical converter unit, temperature model of the power semiconductor switch and/or electrical converter unit. In the second operating state a lower switching frequency of the power semiconductor switch is used than in the first operating state, and in the second operating state a higher switching speed of the power semiconductor switch is used than in the first operating state.
-
公开(公告)号：US11293951B2
公开(公告)日：2022-04-05
申请号：US15215357
申请日：2016-07-20
Applicant: KONE Corporation
Inventor： Ari Kattainen , Lauri Stolt
Abstract: It is desired that elevators are not operated when the brake is not completely released. Thus, the disengaging of brakes must be monitored or guaranteed otherwise. For providing guaranteed opening, the current for opening the brake is determined and then an additional current is provided to the brakes in order to guarantee the opening. The current for opening the brake is determined by doing a test sequence for each brake individually. In the test sequence, one brake is used to hold the elevator. Then, a momentum is applied to the elevator for moving the elevator car. The current is determined by increasing the current to the engaged brake gradually until the elevator moves. When the movement is detected, the current value is stored. When the elevator is operated regularly, the additional current is added to the stored value.
-
9.发明授权公开(公告)号：US11218097B2
公开(公告)日：2022-01-04
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.
-
公开(公告)号：US10954101B2
公开(公告)日：2021-03-23
申请号：US15638899
申请日：2017-06-30
Applicant: Kone Corporation
Inventor： Ari Kattainen , Lauri Stolt
Abstract: Brake release sensors for an elevator can be replaced by an arrangement wherein the brake release is determined from the force caused by the brake. This is achieved by providing measuring device for measuring the weight of an elevator car between the brake and the motor body so that the weight of the elevator car is measured only when the brake is on.
-
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.014 seconds)
