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公开(公告)号：US10442660B2
公开(公告)日：2019-10-15
申请号：US15509643
申请日：2014-09-12
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Frank Kirchhoff
Abstract: An elevator brake control system (10) is described, in particular for controlling an elevator brake in a machine room-less elevator, the elevator including a drive machine drivingly coupled to an elevator car for moving the elevator car between a plurality of landings in a hoistway, and an elevator brake having at least an engaged condition for holding the elevator car at a fixed position in the hoistway, and a released condition for allowing the elevator car to move along the hoistway; the elevator brake control system (10) comprising a first safety device (T1) and a second safety device (T2), each of the first safety device (T1) and the second safety device (T2) responsive to detection of a failure in any sub-system of the elevator, such as to bring the elevator brake into its engaged condition in response to detection of such failure; wherein each of the first safety device (T1) and the second safety device (T2) comprises a power semiconductor switching device.
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公开(公告)号：US20180157482A1
公开(公告)日：2018-06-07
申请号：US15572948
申请日：2015-05-12
Applicant: Otis Elevator Company
Inventor： Frank Kirchhoff , Martin Georg Walter Hnida , Michael Wilke , Hermann Ludwig Lorenz , Peter Herkel
CPC classification number: G06F8/65 , B66B1/34 , B66B5/0087 , G05B19/0426 , G05B2219/23304 , G05B2219/24161 , G05B2219/25064 , G05B2219/2659 , G06F8/656 , G06F21/64 , H04L9/30 , H04L9/3247 , H04L63/0428
Abstract: The present disclosure relates to a method (200) of updating safety-related software in a people conveyor system, particularly in an elevator system (10), the method comprising: the steps of providing an updated version of the safety-related software (210); storing (230) the updated version of the safety-related software in a safety unit (60) of the people conveyor system; activating (240) the updated version of the safety-related software, the step of activating including operating a software update activation switch permanently associated with the people conveyor system; and in case of successful activation of the updated version of the safety-related software, controlling the operation of the people conveyor system based on the updated version of the safety-related software (290).
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公开(公告)号：US20170283212A1
公开(公告)日：2017-10-05
申请号：US15509643
申请日：2014-09-12
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Frank Kirchhoff
CPC classification number: B66B1/32 , B66B5/02 , B66B5/027 , B66B11/0045
Abstract: An elevator brake control system (10) is described, in particular for controlling an elevator brake in a machine roomless elevator, the elevator including a drive machine drivingly coupled to an elevator car for moving the elevator car between a plurality of landings in a hoistway, and an elevator brake having at least an engaged condition for holding the elevator car at a fixed position in the hoistway, and a released condition for allowing the elevator car to move along the hoistway; the elevator brake control system (10) comprising a first safety device (T1) and a second safety device (T2), each of the first safety device (T1) and the second safety device (T2) responsive to detection of a failure in any sub-system of the elevator, such as to bring the elevator brake into its engaged condition in response to detection of such failure; wherein each of the first safety device (T1) and the second safety device (T2) comprises a power semiconductor switching device.
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公开(公告)号：US20170355560A1
公开(公告)日：2017-12-14
申请号：US15528999
申请日：2015-11-23
Applicant: Otis Elevator Company
Inventor： Peter Herkel , Frank Kirchhoff
CPC classification number: B66B5/0037 , B66B1/34 , B66B5/0031 , B66D5/30
Abstract: An elevator brake monitoring system includes a car (12); a machine (18) configured to actuate movement of the car; and a brake (32) configured to decelerate the car; wherein the system is configured to operate the machine to move the car at a pre-determined speed, engage the brake, measure a braking parameter and compare the measured braking parameter to a reference braking parameter.
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