公开(公告)号：US11014786B2

公开(公告)日：2021-05-25

申请号：US15900979

申请日：2018-02-21

Applicant: Otis Elevator Company

Inventor： Ismail Agirman ,  Marvin Dehmlow ,  Bernd Fischer ,  Carlo Mezzadri

IPC: B66B1/30 ,  B66B11/04 ,  H02P27/06 ,  H02P3/22 ,  H02J7/00

Abstract: The subject-matter disclosed relates to a power control system (10) for a battery driven elevator; the power control system (10) comprising a DC battery (16) for providing electrical power to an electric motor (24) of the elevator system; and a power controller (22) including a power converter (26), an power inverter (28), and a DC intermediate circuit (30) connected in between the power converter (26) and the power inverter (28); wherein an output of the DC battery (16) is connected to the DC intermediate circuit (30).

公开(公告)号：US10745239B2

公开(公告)日：2020-08-18

申请号：US15529435

申请日：2015-11-19

Applicant: Otis Elevator Company

Inventor： Steven M. Millet ,  Ismail Agirman ,  Amir Lotfi

IPC: B66B1/44 ,  B66B1/32 ,  B66B5/02 ,  B66B11/04

Abstract: A braking system for an elevator includes an electromagnetic brake operably connected to an elevator car. A control circuit is operably connected to the electromagnetic brake and includes a switching mechanism to selectively modify a rate of engagement of the electromagnetic brake to selectively modify deceleration of the elevator car. A method of engaging an electromagnetic brake for an elevator system includes detecting one or more operational characteristics of the elevator system and selecting a first position or a second position of a switching mechanism disposed at a brake control circuit depending on the sensed operational characteristics. Electrical current is directed through one or more components of the brake control circuit, depending on the position of the switching mechanism, to determine a rate of engagement of the electromagnetic brake. A flow of electrical current through the brake control circuit is stopped, thereby causing engagement of the electromagnetic brake.

公开(公告)号：US10454387B2

公开(公告)日：2019-10-22

申请号：US15553574

申请日：2016-02-12

Applicant: Otis Elevator Company

Inventor： Ismail Agirman ,  HanJong Kim

IPC: H02P27/06 ,  H02M7/493 ,  H02M1/00

Abstract: A power system including a first drive including a first drive output, a second drive including a second drive output, wherein the first drive output is larger than the first drive output, at least one inductor operably coupled to the first drive and the second drive, and a load operably coupled to the system output.

公开(公告)号：US10099894B2

公开(公告)日：2018-10-16

申请号：US14772211

申请日：2013-03-07

Applicant: Otis Elevator Company

Inventor： Randall K. Roberts ,  Amir Lotfi ,  Ismail Agirman

IPC: B66B1/34 ,  B66B1/44 ,  B66B1/28 ,  B66B1/40

Abstract: A system and a method are provided for damping vertical oscillations of an elevator car hovering at an elevator landing. The system includes a sensor, a controller and an elevator machine connected to a traction sheave. The sensor is adapted to provide a sensor signal indicative of rotation of the traction sheave, wherein the rotation of the traction sheave corresponds to the vertical oscillations of the hovering elevator car. The controller is adapted to provide a control signal based on the sensor signal. The elevator machine is adapted to reduce the vertical oscillations of the hovering elevator car by controlling the rotation of the traction sheave based on the control signal.

公开(公告)号：US10008917B2

公开(公告)日：2018-06-26

申请号：US15104195

申请日：2013-12-18

Applicant: OTIS ELEVATOR COMPANY

Inventor： Ismail Agirman ,  Steven M. Millett ,  Shashank Krishnamurthy ,  Yang Wang

IPC: B66B1/32 ,  H02M1/00 ,  H02P3/14 ,  H02M1/12 ,  H02M5/458 ,  H02M7/487 ,  B66B1/30 ,  H02P3/18 ,  H03H7/00

CPC classification number: H02M1/00 ,  B66B1/302 ,  B66B1/32 ,  H02M1/12 ,  H02M5/458 ,  H02M5/4585 ,  H02M7/487 ,  H02M2001/007 ,  H02P3/14 ,  H02P3/18 ,  H03H7/004

Abstract: A regenerative drive device and a method for configuring the DC link of a regenerative drive device are disclosed. The multilevel regenerative drive device may include an inverter having a plurality of power components and a converter having a plurality of power components. The multilevel regenerative drive device may also include a direct current (DC) link bridging the inverter and the converter, the DC link including a capacitor, an inverter neutral point, and a converter neutral point independent of the inverter neutral point. Alternatively, the inverter neutral point and the converter neutral point may be connected.

公开(公告)号：US20170369276A1

公开(公告)日：2017-12-28

申请号：US15537037

申请日：2015-12-09

Applicant: Otis Elevator Company

Inventor： Ismail Agirman ,  Jeffrey M. Izard ,  HanJong Kim

IPC: B66B1/30 ,  H02M7/487 ,  H02M7/49 ,  H02M5/458 ,  H02M1/12 ,  H02M1/00 ,  H02P4/00 ,  H02P25/22 ,  H02P27/14

CPC classification number: B66B1/308 ,  H02M1/12 ,  H02M5/4585 ,  H02M7/487 ,  H02M7/49 ,  H02M2001/0067 ,  H02P4/00 ,  H02P25/22 ,  H02P27/14

Abstract: A conveyance system includes a machine having a motor; a source of AC power; a drive system coupled to the source of AC power, the drive system to provide multi-phase drive signals to the motor, the drive system including: a first drive having a first converter and a first inverter, the first convertor including a first positive DC bus and a first negative DC bus; a second drive having a second converter and a second inverter, the second convertor including a second positive DC bus and a second negative DC bus; wherein the first positive DC bus and the second DC positive bus are electrically connected and the first negative DC bus and the second negative DC bus are electrically connected.

公开(公告)号：US20170313552A1

公开(公告)日：2017-11-02

申请号：US15510130

申请日：2015-09-10

Applicant: OTIS ELEVATOR COMPANY

Inventor： James L. Hubbard ,  Ismail Agirman ,  Takashi Onodera

IPC: B66B5/14 ,  B66B1/34 ,  G01G19/52 ,  G01G19/14

CPC classification number: B66B5/145 ,  B66B1/34 ,  B66B1/3476 ,  B66B5/14 ,  G01G19/14 ,  G01G19/52

Abstract: An elevator load weighing system (100) includes a brake assembly (104) configured to apply a braking force that inhibits vertical movement of an elevator car (106), and rotate in response to realizing a torque applied thereto. A position monitoring mechanism (112) is coupled to the brake assembly (104) and is configured to output a position signal in response to a rotation of the brake assembly (104). An electronic elevator control module (102) is configured to determine a zero-torque position of the brake assembly (104) prior to engaging the brake assembly (104). The electronic elevator control module (102) is further configured to detect at least one rotational brake displacement of the brake assembly (104) based on the position signal.

公开(公告)号：US20170288574A1

公开(公告)日：2017-10-05

申请号：US15507642

申请日：2015-07-09

Applicant: Otis Elevator Company

Inventor： Ismail Agirman ,  HanJong Kim

IPC: H02M7/487 ,  H02M7/5387 ,  H02M1/32

CPC classification number: H02M7/487 ,  H02M1/32 ,  H02M7/53871 ,  H02P27/06

Abstract: The present disclosure relates generally to a neutral point balancing scheme for power converter systems. The balancing circuit includes a first side of a first electrical component operably coupled to a mid-point of the DC link capacitor bank, and a switching combination operably coupled to the second side of the first electrical component, a positive voltage, and a negative voltage rail, wherein the switching combination is configured to generate a pulse-width modulation signal at the second side of the first electrical component.

公开(公告)号：US20160083220A1

公开(公告)日：2016-03-24

申请号：US14888807

申请日：2013-05-08

Applicant: OTIS ELEVATOR COMPANY

Inventor： Ismail Agirman ,  Carlo Mezzadri

IPC: B66B1/30 ,  H02J7/35 ,  H02J7/34 ,  H02J7/00

CPC classification number: B66B1/302 ,  H01M10/0525 ,  H01M10/06 ,  H01M10/30 ,  H01M10/441 ,  H01M16/00 ,  H01M2220/00 ,  H02J5/00 ,  H02J7/0068 ,  H02J7/02 ,  H02J7/1423 ,  H02J7/345 ,  H02J7/35 ,  H02P3/12 ,  H02P3/14 ,  H02P2207/05 ,  Y02B50/142 ,  Y02E60/122 ,  Y02E60/124 ,  Y02E60/126

Abstract: Embodiments are directed to charging a lead acid battery, providing by the battery a majority of energy required by a load and providing a remainder of the energy required by the load via an energy storage device, and capturing by the battery a portion of energy regenerated by the load and capturing by the energy storage device a remainder of the energy regenerated by the load.

Abstract translation: 实施例涉及对铅酸电池充电，由电池提供负载所需的大部分能量，并通过能量存储装置提供负载所需能量的剩余部分，并且由电池捕获部分由 由能量存储装置的负载和捕获由负载再生的剩余能量。

公开(公告)号：US20190131882A1

公开(公告)日：2019-05-02

申请号：US15799387

申请日：2017-10-31

Applicant: OTIS ELEVATOR COMPANY

Inventor： Ismail Agirman

IPC: H02M5/458 ,  H02P27/08 ,  B66B1/30

Abstract: A three-phase regenerative drive configured for operation from a single phase alternating current (AC) power source, the three-phase regenerative drive including a three-phase converter having inputs for connection to a single-phase AC source, the three-phase converter having three phase legs, a three-phase inverter for connection to a motor, the three phase inverter configured to provide three phase command signals to the motor, and a DC bus connected between the three-phase converter and the three-phase inverter. A first phase leg of the three-phase converter and a second phase leg of the three-phase converter are employed to direct current from the single-phase AC source to the DC Bus and a third phase leg of the three phase legs of the three-phase converter returns current to a return of the AC source.