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公开(公告)号：US20220033218A1
公开(公告)日：2022-02-03
申请号：US16944752
申请日：2020-07-31
Applicant: Otis Elevator Company
Inventor： Randy Roberts , Edward Piedra , Sam Thieu Wong , Brad Guilani , Don Eager
Abstract: An elevator system including: an elevator car configured to travel through an elevator shaft; a first guide beam extending vertically through the elevator shaft, the first guide beam including a first surface and a second surface opposite the first surface; a beam climber system configured to move the elevator car through the elevator shaft, the beam climber system including: a first wheel in contact with the first surface; and a first electric motor configured to rotate the first wheel; and a controller configured to determine wheel slippage in a low friction area along the first guide beam.
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公开(公告)号：US20180037437A1
公开(公告)日：2018-02-08
申请号：US15783629
申请日：2017-10-13
Applicant: Otis Elevator Company
Inventor： Edward Piedra
IPC: B66B1/30
CPC classification number: B66B1/30 , B66B5/027 , B66B2201/00
Abstract: A method of operating an elevator system is provided. The method includes powering, using a battery, the elevator system when an external power source is unavailable. The method also includes controlling, using a controller, a plurality of components of the elevator system. The controlling comprises operating at least one of the battery, an elevator car, a drive unit, and a brake. The method further includes determining, using the controller, a run profile of the elevator car in response to a selected deceleration. The method yet further includes operating, using the controller, the elevator car in response to the run profile determined, and determining, using the controller, an actual velocity of the elevator car.
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公开(公告)号：US20190202658A1
公开(公告)日：2019-07-04
申请号：US16295327
申请日：2019-03-07
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Randall Keith Roberts , Ronnie E. Thebeau , Michael Garfinkel , Edward Piedra , Dennis Hanvey , Daniel Rush
Abstract: A method includes determining that an elevator car is arriving at a landing at which re-leveling is anticipated; upon the elevator car arriving at the landing at which re-leveling is anticipated, initiating the at least one of a brake cycling operation and a power cycling operation to reduce elevator car sag at the landing; monitoring transfer of weight to or from the elevator car at the landing over a period of time; terminating the at least one of the brake cycling operation and the power cycling operation upon at least one of (i) the transfer of weight to or from the elevator car at the landing over the period of time being less than a threshold and (ii) the elevator car sag at the landing meeting a sag threshold.
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公开(公告)号：US20170174472A1
公开(公告)日：2017-06-22
申请号：US15116120
申请日：2014-02-06
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Randall Keith Roberts , Ronnie E. Thebeau , Michael Garfinkel , Edward Piedra , Dennis Hanvey , Daniel Rush
Abstract: Embodiments are directed to determining that an elevator car of an elevator system is approaching a landing, obtaining, by a controller, a value for at least one parameter associated with the elevator system based on the determination that the elevator car is approaching the landing, determining that the elevator car arrives at the landing within a threshold distance, determining, by the controller, when to engage in at least one of a brake cycling operation and a power cycling operation based on the value for the at least one parameter and based on determining that the elevator car arrives at the landing within the threshold distance, and initiating the at least one of a brake cycling operation and a power cycling operation at a time corresponding to the determination of when to engage in the at least one of a brake cycling operation and a power cycling operation.
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公开(公告)号：US20150329317A1
公开(公告)日：2015-11-19
申请号：US14651284
申请日：2012-12-13
Applicant: OTIS ELEVATOR COMPANY
Inventor： Ismail Agirman , Edward Piedra
Abstract: Embodiments are directed to calculating a current associated with a motor of an elevator based on an output of a speed regulator, and controlling the elevator based on the current. Embodiments are directed to examining a feeder current obtained via a converter current sensor of a regenerative drive during a peak power condition, and regulating a speed of an elevator based on the feeder current.
Abstract translation: 实施例涉及基于速度调节器的输出来计算与电梯的电机相关联的电流，并且基于电流来控制电梯。 实施例旨在检查在峰值功率状态期间通过再生驱动器的转换器电流传感器获得的馈电电流，以及基于馈电电流来调节电梯的速度。
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Patent Agency Ranking
公开(公告)号：US10538412B2
公开(公告)日：2020-01-21
申请号：US16295327
申请日：2019-03-07
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Randall Keith Roberts , Ronnie E. Thebeau , Michael Garfinkel , Edward Piedra , Dennis Hanvey , Daniel Rush
Abstract: A method includes determining that an elevator car is arriving at a landing at which re-leveling is anticipated; upon the elevator car arriving at the landing at which re-leveling is anticipated, initiating the at least one of a brake cycling operation and a power cycling operation to reduce elevator car sag at the landing; monitoring transfer of weight to or from the elevator car at the landing over a period of time; terminating the at least one of the brake cycling operation and the power cycling operation upon at least one of (i) the transfer of weight to or from the elevator car at the landing over the period of time being less than a threshold and (ii) the elevator car sag at the landing meeting a sag threshold.
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公开(公告)号：US20180016114A1
公开(公告)日：2018-01-18
申请号：US15718822
申请日：2017-09-28
Applicant: Otis Elevator Company
Inventor： Prasanna Nagarajan , Amir Lotfi , Edward Piedra
IPC: B66B1/28
CPC classification number: B66B1/28 , B66B5/027 , B66B2201/00
Abstract: According to one embodiment, a method of operating an elevator system is provided. The method includes detecting, using a controller, when an external power source is unavailable. The method also includes controlling, using the controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an elevator car, a drive unit, an inverter and a brake. The method further includes detecting, using the controller, an original direction of travel of the elevator car. The method yet further includes detecting, using the controller, a mode of the elevator car, wherein the mode includes at least one of a motoring mode, a near balance mode, and a regenerative mode. The method includes determining, using the controller, a target floor. The method also includes adjusting, using the controller, a velocity of the elevator car to reach the target floor in response to the mode detected.
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公开(公告)号：US09809418B2
公开(公告)日：2017-11-07
申请号：US15056158
申请日：2016-02-29
Applicant: Otis Elevator Company
Inventor： Prasanna Nagarajan , Amir Lotfi , Edward Piedra
CPC classification number: B66B1/28 , B66B5/027 , B66B2201/00
Abstract: According to one embodiment, a method of operating an elevator system is provided. The method includes detecting, using a controller, when an external power source is unavailable. The method also includes controlling, using the controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an elevator car, a drive unit, an inverter and a brake. The method further includes detecting, using the controller, an original direction of travel of the elevator car. The method yet further includes detecting, using the controller, a mode of the elevator car, wherein the mode includes at least one of a motoring mode, a near balance mode, and a regenerative mode. The method includes determining, using the controller, a target floor. The method also includes adjusting, using the controller, a velocity of the elevator car to reach the target floor in response to the mode detected.
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公开(公告)号：US20170247222A1
公开(公告)日：2017-08-31
申请号：US15056158
申请日：2016-02-29
Applicant: Otis Elevator Company
Inventor： Prasanna Nagarajan , Amir Lotfi , Edward Piedra
IPC: B66B1/28
CPC classification number: B66B1/28 , B66B5/027 , B66B2201/00
Abstract: According to one embodiment, a method of operating an elevator system is provided. The method includes detecting, using a controller, when an external power source is unavailable. The method also includes controlling, using the controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an elevator car, a drive unit, an inverter and a brake. The method further includes detecting, using the controller, an original direction of travel of the elevator car. The method yet further includes detecting, using the controller, a mode of the elevator car, wherein the mode includes at least one of a motoring mode, a near balance mode, and a regenerative mode. The method includes determining, using the controller, a target floor. The method also includes adjusting, using the controller, a velocity of the elevator car to reach the target floor in response to the mode detected.
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公开(公告)号：US11548758B2
公开(公告)日：2023-01-10
申请号：US16000004
申请日：2018-06-05
Applicant: Otis Elevator Company
Inventor： Randy Roberts , Edward Piedra , Bruce P. Swaybill
Abstract: Methods and systems for monitoring a dynamic compensation control system of an elevator system are provided. The methods and systems include monitoring a first motion state sensor signal generated by a first motion state sensor, the first motion state sensor associated with an elevator machine, monitoring a second motion state sensor signal generated by a second motion state sensor, the second motion state sensor located on an elevator car, determining an operational status of the second motion state sensor based on an analysis of the first motion state sensor signal and the second motion state sensor signal, and when it is determined that a failure status of the second motion state sensor is present, the method further comprises deactivating a dynamic compensation control mode of operation of the elevator system.
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