Wireless communication for self-propelled elevator system

    公开(公告)号:US10793394B2

    公开(公告)日:2020-10-06

    申请号:US15547920

    申请日:2016-02-02

    Abstract: A self-propelled elevator system includes a hoistway (11) including a plurality of drives (40), wherein each of the plurality of drives includes a stationary portion (16) of a propulsion system and a controller (30) configured to operate the stationary portion of the propulsion system. The propelled elevator system also includes an elevator car ((14), 42) comprising a processor (44) and a transceiver (48), wherein the transceiver is configured to communicate with the controllers of one or more of the plurality of drives that are adjacent to the elevator car and one or more sensors (46) disposed on the elevator car, wherein the processor is configured to receive signals from the one or more sensors. The processor is configured to control a movement of the elevator car within the hoistway.

    Out-of-group operations for multicar hoistway systems

    公开(公告)号:US10766738B2

    公开(公告)日:2020-09-08

    申请号:US15547925

    申请日:2016-02-02

    Abstract: A ropeless elevator system includes a plurality of elevator cars configured to travel in a hoistway having at least one lane, a propulsion system to impart force to each elevator car of the plurality of elevator cars, and a controller. The controller is programmed to operate in an in-group mode where the plurality of elevator cars perform service demands, an out-of-group mode where at least one selected elevator car of the plurality of elevator cars is prevented from performing the group service mode service demands, and a transition mode where the at least one selected elevator car is prepared and transitioned from operation in the in-group mode to operation in the out-of-group mode.

    ACTIVE BRAKING FOR IMMEDIATE STOPS
    25.
    发明申请

    公开(公告)号:US20200055693A1

    公开(公告)日:2020-02-20

    申请号:US16105581

    申请日:2018-08-20

    Abstract: An elevator system control system is provided and includes a sensor system configured to sense elevator car conditions, a safety system signaling element to generate a safety signal indicative of an incident and a control system configured to react to the safety system signal. When the control system receives the safety signal indicating that an incident has occurred that requires engagement of at least one of primary and secondary brakes, the control system controls a deceleration rate during the incident by operating the primary brake, determining whether the deceleration rate is within a target range and adjusting the deceleration rate based on signals from the sensor system.

    Elevator system having linear drive

    公开(公告)号:US10549954B2

    公开(公告)日:2020-02-04

    申请号:US15537499

    申请日:2015-12-22

    Abstract: According to an aspect, an elevator system includes an elevator car 14 to travel in a hoistway 11 and a linear propulsion system 20 to impart force to the elevator car. The linear propulsion system includes a secondary portion 18 mounted to the elevator car and a primary portion 16 mounted in the hoistway. The primary portion includes a plurality of motor segments 26. The elevator system also includes a load sensor 52 operable to detect an elevator load on a brake. The elevator system further includes a control system 46 operable to apply an electrical current to at least one of the motor segments that overlaps the secondary portion, determine a measurement of the elevator load, and vary an electrical angle estimate while the brake is engaged and thrust is applied.

    Sensor failure detection and fusion system for a multi-car ropeless elevator system

    公开(公告)号:US10472206B2

    公开(公告)日:2019-11-12

    申请号:US15366648

    申请日:2016-12-01

    Abstract: A multi-car ropeless elevator system includes at least one lane. An elevator car is arranged in the at least one lane. A linear motor system includes a plurality of stationary motor primary sections extending along the at least one lane and at least one moveable motor secondary section mounted to the elevator car. A plurality of sensors is operatively connected to the linear motor system. Each of the plurality of sensors is operatively associated with a corresponding one of the plurality of stationary motor primary sections. A sensor failure detection and fusion system is operatively connected to each of the plurality of sensors. The sensor failure detection and fusion system operates to identify failures in one or more of the plurality of sensors and fuse data received from remaining ones of the plurality of sensors.

    Service tool proximity detection
    28.
    发明授权

    公开(公告)号:US10244374B2

    公开(公告)日:2019-03-26

    申请号:US15651415

    申请日:2017-07-17

    Abstract: A service tool proximity detection system includes a service tool and an equipment controller. The service tool is operable to establish communication with the equipment controller of an equipment service system. At least one processor of the service tool proximity detection system is configured to generate a location proximity indicator to verify proximity of the service tool to a predetermined service location of the equipment service system, determine that the service tool is located local to the predetermined service location based on verifying that a response to the location proximity indicator matches an expected response, determine that the service tool is located remote from the predetermined service location based on verifying that the response to the location proximity indicator fails to match the expected response, and configure one or more functions of the service tool based on the location of the service tool relative to the predetermined service location.

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