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公开(公告)号：US20240076163A1
公开(公告)日：2024-03-07
申请号：US17987531
申请日：2022-11-15
Applicant: Otis Elevator Company
Inventor： Matthias Hoinkis , Sebastian Gehrke , Jan Ruhnke , Peter Herkel
CPC classification number: B66B5/16 , B66B1/3423
Abstract: A method of learning a rescue time period by an elevator system (101). The elevator system (101) includes an elevator car (103) moved by a machine (111) and a machine brake (120), arranged such that braking of the machine (111) by the machine brake (120) brakes motion of the elevator car (103). The method includes releasing the machine brake (120) for at least one test time period, at the end of which the machine brake (120) is engaged, detecting a corresponding at least one maximum travel speed of the elevator car (103) reached as a result of releasing the machine brake (120) for each at least one test time period, checking whether each at least one maximum travel speed is an acceptable speed, and setting the rescue time period based upon said checking.
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公开(公告)号：US20230242373A1
公开(公告)日：2023-08-03
申请号：US17973671
申请日：2022-10-26
Applicant: Otis Elevator Company
Inventor： Uwe Schönauer , Peter Herkel , Felix Donath
CPC classification number: B66B1/32 , B66B5/0031 , B66B5/16
Abstract: An elevator system (201) includes an elevator car (203) arranged to move within an elevator shaft, an elevator drive (211) including a brake (208), an elevator controller (230) configured to control the elevator drive so as to control the movement of the elevator car between a plurality of landings in the elevator shaft, a position reference system (240) configured to measure a position of the elevator car within the elevator shaft, and a safety controller (232) connected to the position reference system (240) to receive car position information and configured to selectively apply the brake of the elevator drive so as to stop the elevator car. The safety controller is configured to monitor the received car position information at least when the elevator car is moving in a designated unlocking zone of a given landing with an elevator car door open and to apply the brake.
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公开(公告)号：US11565911B2
公开(公告)日：2023-01-31
申请号：US16953475
申请日：2020-11-20
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Norbert Diwisch
IPC: G01R31/327 , B66B5/00 , H01H9/00
Abstract: An electronic test node (1) for a safety chain (22) in a passenger conveyor system includes an electrical connection (2) for an associated safety switch (4). A processor (6) is configured to monitor a signal carried by the electrical connection (2) so as to detect whether the associated safety switch (4) is open or closed. The electronic test node (1) further includes a test switch (8) connected in series with the electrical connection (2), wherein the processor (6) is configured to run a test by selectively opening the test switch (8) and monitoring for a change in the signal carried by the electrical connection (2).
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公开(公告)号：US20220380173A1
公开(公告)日：2022-12-01
申请号：US17529563
申请日：2021-11-18
Applicant: Otis Elevator Company
Inventor： Dirk H. Tegtmeier , Peter Herkel
Abstract: An elevator system includes an elevator car, an elevator controller, a safety controller and a plurality of safety contacts connected to the safety controller, wherein the plurality of safety contacts monitor the elevator system. The safety controller is configured to receive individual status information from each of the plurality of safety contacts and to prevent movement of the elevator car when the individual status information received from one of the plurality of safety contacts indicates an unsafe condition of the elevator system. The safety controller is configured to connect to a remote computing device, to receive first authentication information from the remote computing device, and to authenticate the remote computing device if the first authentication information meets an authentication condition. If the remote computing device is authenticated, to permit the remote computing device to override the safety controller to enable movement of the elevator car.
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公开(公告)号：US20220017330A1
公开(公告)日：2022-01-20
申请号：US17373995
申请日：2021-07-13
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Jan Ruhnke
Abstract: An elevator safety circuit for an elevator system in which an output is arranged to selectively provide an electrical current from an input to an electromagnetic brake coil via a current flow path. An actuator transistor is arranged in series along the current flow path between the input and the output, the actuator transistor being arranged to selectively allow passage of the electrical current. A controller is arranged to carry out a test operation when the braking element is in the open position. The test operation comprises operating the actuator transistor in its disabled mode for a time period, monitoring the electrical current through the brake coil, and determining whether the magnitude of the electrical current reduces during said time period, the time period being selected such that the magnitude of the electrical current remains sufficient for keeping the braking element in the open position during the test.
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Patent Agency Ranking
公开(公告)号：US20190031466A1
公开(公告)日：2019-01-31
申请号：US16043947
申请日：2018-07-24
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Mustapha Toutaoui , Ralph S. Stripling , Sven Knuth , Raphael Pecek
Abstract: An elevator safety device (120) is configured for restricting the movement of an elevator car (106) of an elevator system (102) along its pathway in order to prevent the elevator car (106) from moving beyond at least one limit position. The elevator safety device (120) is configured for performing at least one learning run (220a, 220b) for setting the at least one limit position.
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公开(公告)号：US12012307B2
公开(公告)日：2024-06-18
申请号：US16518173
申请日：2019-07-22
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Dirk H. Tegtmeier
CPC classification number: B66B5/0031 , B66B1/28 , B66B1/3461 , B66B1/3492 , B66B5/0025 , B66B5/027 , B66B13/22
Abstract: An elevator safety system (1) configured for monitoring an elevator system (2) comprises at least one safety node (12) and an evaluator (19). The at least one safety node (12) is configured for monitoring at least one component of the elevator system (2) and/or of the elevator safety system (1) and providing signals representing the current status of the at least one monitored component. The evaluator (19) configured for receiving the signals from the at least one safety node (12); and for determining a safety status of the elevator system (2) and/or of the elevator safety system (1) from a combination of the received signals.
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公开(公告)号：US20220380175A1
公开(公告)日：2022-12-01
申请号：US17529500
申请日：2021-11-18
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Dirk H. Tegtmeier
Abstract: An elevator system includes a hoistway (217) including a landing (225A-225C), which includes a landing door (227A-227C), an elevator car (203), comprising an elevator car door (229), arranged to move within the hoistway (217), a first safety switch (231; 233) configured to indicate a potential hazard in the elevator system (201) and a controller (215). The controller (215) is configured, when the first safety switch (231; 233) is triggered, to stop movement of the elevator car (203) and determine whether the elevator car (203) is located anywhere within an unlocking zone (253) in the hoistway. The controller is further configured, if it is determined that the elevator car (203) is located anywhere in the unlocking zone (253), to allow the elevator car door (229) and landing door (227A-227C) to be opened.
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公开(公告)号：US11485608B2
公开(公告)日：2022-11-01
申请号：US16085710
申请日：2016-03-18
Applicant: Otis Elevator Company , Dirk H. Tegtmeier
Inventor： Dirk H. Tegtmeier , Peter Herkel
Abstract: An elevator safety system includes: at least two sensors, each of the sensors being configured for monitoring at least a portion of a hoistway of an elevator system and providing monitoring signals; a transformation unit which is configured for transforming the monitoring signals provided by at least one of the sensors and producing transformed signals corresponding to a common direction of vision; a comparison unit which is configured for comparing the at least two transformed signals and for generating a failure signal if a difference between the at least two transformed signals exceeds a predetermined threshold; and a detection unit, which is configured for detecting a person or undesired item in at least one of the two transformed signals and for generating an alarm signal if a person or undesired item is detected.
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公开(公告)号：US20210155455A1
公开(公告)日：2021-05-27
申请号：US16953475
申请日：2020-11-20
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Norbert Diwisch
IPC: B66B5/00 , G01R31/327
Abstract: An electronic test node (1) for a safety chain (22) in a passenger conveyor system includes an electrical connection (2) for an associated safety switch (4). A processor (6) is configured to monitor a signal carried by the electrical connection (2) so as to detect whether the associated safety switch (4) is open or closed. The electronic test node (1) further includes a test switch (8) connected in series with the electrical connection (2), wherein the processor (6) is configured to run a test by selectively opening the test switch (8) and monitoring for a change in the signal carried by the electrical connection (2).
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