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公开(公告)号：US11866295B2
公开(公告)日：2024-01-09
申请号：US16105581
申请日：2018-08-20
发明人： Prasanna Nagarajan , David Ginsberg , Shashank Krishnamurthy , Daryl J. Marvin , Ronnie E. Thebeau
CPC分类号： B66B1/32 , B66B5/0031 , B66B5/0037 , B66B5/02 , B66B5/04
摘要： An elevator system control system is provided and includes a sensor system configured to sense elevator car conditions, a safety system signaling element to generate a safety signal indicative of an incident and a control system configured to react to the safety system signal. When the control system receives the safety signal indicating that an incident has occurred that requires engagement of at least one of primary and secondary brakes, the control system controls a deceleration rate during the incident by operating the primary brake, determining whether the deceleration rate is within a target range and adjusting the deceleration rate based on signals from the sensor system.
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公开(公告)号：US10934130B2
公开(公告)日：2021-03-02
申请号：US15754066
申请日：2016-08-24
摘要： An elevator system includes a first elevator car (28) constructed and arranged to move in a first lane (30, 32, 34) and a first propulsion system (40) constructed and arranged to propel the first elevator. An electronic processor of the elevator system is configured to selectively control power delivered to the first propulsion system (40). The electronic processor includes a software-based power estimator configured to receive a first weight signal and a nm trajectory signal for calculating a power estimate and comparing the power estimate to a maximum power allowance. The electronic processor is configured to output an automated command signal if the power estimate exceeds the maximum power allowance.
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公开(公告)号：US10787340B2
公开(公告)日：2020-09-29
申请号：US15619871
申请日：2017-06-12
发明人： David Ginsberg , Shashank Krishnamurthy , Lei Xing , Penghe Geng , Ankit Anand Gupta , Yogesh Parmod Jadhav , Basavanagouda Goudra , Pramod Mandikal Gurukumar
摘要： A method of operating an elevator system for a learn run sequence including the steps of moving, using a linear propulsion system, an elevator car through a lane of an elevator shaft at a selected velocity; detecting, using a sensor system, the location of the elevator car when it moves through the lane; controlling, using a control system, the elevator car, the control system being in operable communication with the elevator car, the linear propulsion system, and the sensor system; and determining, using the control system, a location of each of the car state sensors relative to each other within the lane in response to at least one of a travel time of the elevator car, a velocity of the elevator car, a position of the elevator car, and a height of the elevator car.
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公开(公告)号：US10407273B2
公开(公告)日：2019-09-10
申请号：US15266452
申请日：2016-09-15
摘要： An elevator control system is configured to control an elevator car constructed and arranged to move along a hoistway defined by a stationary structure. The elevator system may include a communication pathway and a hoistway control system supported by the stationary structure and configured to send a continuous brake command signal over the pathway. A car control system is carried by the elevator car and is configured to receive the continuous brake command signal and initiate a brake Ustop mode upon a loss of the brake command signal, and independent of the hoistway control system.
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公开(公告)号：US20190097551A1
公开(公告)日：2019-03-28
申请号：US15718607
申请日：2017-09-28
摘要： A system includes a converter operatively connected to an alternating current (AC) power source and a direct current (DC) bus, an inverter operatively connected to a motor and the DC bus, and a controller. The converter includes a first plurality of switching devices in selective communication with each phase of the AC power source and the DC bus. The inverter includes a second plurality of switching devices in selective communication with each phase of the motor and the DC bus. The controller is operable to command dropping of a brake through a passive delay circuit responsive to an emergency stop condition for a load driven by the motor and reduce a voltage on the DC bus by dropping at least one phase of the AC power source and/or using a dynamic braking resistor prior to the brake physically dropping.
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公开(公告)号：US20180009637A1
公开(公告)日：2018-01-11
申请号：US15205936
申请日：2016-07-08
CPC分类号： B66B11/0407 , B66B9/003 , H01L23/5384 , H01L23/5386 , H01L23/5389 , H01L24/20 , H01L25/072 , H01L2224/04105 , H01L2224/24137 , H01L2224/2518 , H01L2924/10253 , H01L2924/13055 , H01L2924/13091 , H01L2924/3025 , H05K1/0306 , H05K1/112 , H05K1/181 , H05K1/185 , H05K2201/10015 , H05K2201/10166
摘要： An embedded power module includes a substrate, first and second semiconducting dies, first and second gates, and first and second vias. The first semiconducting die is embedded in the substrate and spaced between opposite first and second surfaces of the substrate. The second semiconducting die is embedded in the substrate, is spaced between the first and second surfaces, and is spaced from the first semiconducting die. The first gate is located on the first surface. The second gate is located on the second surface. The first via is electrically engaged to the first gate and the second semiconducting die, and the second via is electrically engaged to the second gate and the first semiconducting die.
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公开(公告)号：US20160311645A1
公开(公告)日：2016-10-27
申请号：US15103170
申请日：2013-12-18
摘要： A control system (48) having a motor (28) is disclosed. The control system (48) may include a converter (32) operatively connected to a power source (36), an inverter (34) operatively connected to the motor (28), and a controller (50) operatively connected to the converter (32) or inverter (34). The controller (50) may be configured to receive control command signals, receive state feedback signals, and generate duty cycle signals for upper and lower arms of each phase (40) of the motor (28) based at least in part on the control command signals and state feedback signals. The duty cycle signals may minimize neutral point current in the converter (32) or inverter (34).
摘要翻译： 公开了一种具有电机（28）的控制系统（48）。 控制系统（48）可以包括可操作地连接到电源（36）的转换器（32），可操作地连接到电动机（28）的逆变器（34））和可操作地连接到转换器（32）的控制器 ）或逆变器（34）。 控制器（50）可以被配置为至少部分地基于控制命令来接收控制命令信号，接收状态反馈信号，以及为电动机（28）的每相（40）的上臂和下臂生成占空比信号 信号和状态反馈信号。 占空比信号可以使转换器（32）或逆变器（34）中的中性点电流最小化。
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公开(公告)号：US10934131B2
公开(公告)日：2021-03-02
申请号：US15548221
申请日：2016-02-04
摘要： A ropeless elevator system 10 includes a lane 13, 15, 17. One or more cars 20 are arranged in the lane. At least one linear motor 38, 40 is arranged along one of the lane and the one or more cars, and a magnet 50, 60 is arranged along the other of the lane and the one or more cars. The at least one magnet is responsive to the at least one linear motor. A linear motor controller 70 is operatively connected to the at least one linear motor, and a lane controller 80 is operatively connected to the linear motor controller. A back electro-motive force (EMF) module 84 is operatively connected to at least one of the linear motor controller and the lane controller. The lane controller being configured and disposed to control stopping one of the one or more cars based on a back EMF signal from the at least one linear motor determined by the EMF module.
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公开(公告)号：US20200055693A1
公开(公告)日：2020-02-20
申请号：US16105581
申请日：2018-08-20
发明人： Prasanna Nagarajan , David Ginsberg , Shashank Krishnamurthy , Daryl J. Marvin , Ronnie E. Thebeau
摘要： An elevator system control system is provided and includes a sensor system configured to sense elevator car conditions, a safety system signaling element to generate a safety signal indicative of an incident and a control system configured to react to the safety system signal. When the control system receives the safety signal indicating that an incident has occurred that requires engagement of at least one of primary and secondary brakes, the control system controls a deceleration rate during the incident by operating the primary brake, determining whether the deceleration rate is within a target range and adjusting the deceleration rate based on signals from the sensor system.
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公开(公告)号：US10513414B2
公开(公告)日：2019-12-24
申请号：US15541007
申请日：2015-12-17
发明人： Yang Wang , HanJong Kim , Christopher S. Czerwinski , Edward Piedra , Shashank Krishnamurthy , Draguna Vrabie , Rui Huang
摘要： A system including a drive portion, and an external computing device in communication with the drive portion, wherein the external computing device is configured to receive operational data from the drive portion, determine operational parameters based at least in part on the operational data, determine whether the operational parameters are valid, and automatically transmit commands to the drive portion if the operational parameters are valid.
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