公开(公告)号：US20210371240A1

公开(公告)日：2021-12-02

申请号：US17099486

申请日：2020-11-16

Applicant: Otis Elevator Company

Inventor： Peter Herkel ,  Jan Ruhnke

IPC: B66B5/00 ,  B66B5/06 ,  B66B5/28 ,  B66B3/02 ,  B66B1/50 ,  B66B1/34

Abstract: An emergency terminal stopping system for an elevator system, the emergency terminal stopping system including: a sensor configured to determine data related to the motion of an elevator car moving within an elevator hoistway; at least one elevator brake configured to halt the motion of the elevator car; at least one elevator safety gear device provided on the elevator car; and at least one buffer provided at a lower portion of the hoistway.

公开(公告)号：US20240140759A1

公开(公告)日：2024-05-02

申请号：US17990844

申请日：2022-11-21

Applicant: OTIS ELEVATOR COMPANY

Inventor： Appalaraju Marpu ,  Malleswara Reddy Gutti ,  Stefan Ey ,  Javier Muñoz Sotoca ,  Luis Mena ,  Peter Herkel ,  Jan Ruhnke ,  Felix Donath ,  Colette Ruden ,  Randy Roberts ,  Craig Drew Bogli ,  Johanna Whitwell ,  Mustapha Toutaoui ,  Sylvain Kabre

IPC: B66B5/00 ,  B66B1/34

CPC classification number: B66B5/0062 ,  B66B1/3461

Abstract: Disclosed is an elevator system, including a hoistway; an elevator car in the hoistway; sensors in the hoistway operationally coupled to the elevator car and configured to capture sensor data indicative of a person being in the hoistway, and a processor configured to determine from the sensor data that the person is in the hoistway; and wherein the elevator car is configured to reduce speed or stop when the processor determines the person is in the hoistway.

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

IPC: B66B5/16 ,  B66B1/34

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.

公开(公告)号：US20230399199A1

公开(公告)日：2023-12-14

申请号：US17966072

申请日：2022-10-14

Applicant: Otis Elevator Company

Inventor： Jan Ruhnke

IPC: B66B5/00 ,  B66B5/22

CPC classification number: B66B5/0087 ,  B66B5/22

Abstract: A method of resetting a safety actuator (52) in an elevator system. An elevator controller receives a signal to reset the safety actuator (52) and moves the elevator car upwards relative to the guide rail (106a) so as to release the safety brake (48). A safety board controller is instructed to operate an electromagnet (62) in the safety actuator (52) to pull a magnetic actuator pad (54′) laterally away from the guide rail (106a) to a reset position while the elevator car is moving upwards during the reset operation.

公开(公告)号：US20220063955A1

公开(公告)日：2022-03-03

申请号：US17401023

申请日：2021-08-12

Applicant: Otis Elevator Company

Inventor： Jan Ruhnke ,  Felix Benjamin Donath

IPC: B66B1/32 ,  B66B5/02 ,  B66B1/34 ,  B66B1/36

Abstract: An elevator system includes an elevator car moveable between a plurality of landings and a brake configured to stop the elevator car from moving within the elevator shaft. The system includes a safety controller and at least one safety device. The safety controller monitors for a change in status of the at least one safety device. Upon detection of a change to a new status, the safety controller evaluates whether the new status is a first status corresponding to an emergency situation or a second status corresponding to a non-critical change. The safety controller is further configured to apply the brake immediately to stop the elevator car when the new status is a first status or allow the elevator car to move to a landing when the new status is a second status.

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

IPC: B66B5/00 ,  B66B1/32 ,  B66B5/02

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.