Elevator brake release monitoring
    22.
    发明授权

    公开(公告)号:US11293951B2

    公开(公告)日:2022-04-05

    申请号:US15215357

    申请日:2016-07-20

    Abstract: It is desired that elevators are not operated when the brake is not completely released. Thus, the disengaging of brakes must be monitored or guaranteed otherwise. For providing guaranteed opening, the current for opening the brake is determined and then an additional current is provided to the brakes in order to guarantee the opening. The current for opening the brake is determined by doing a test sequence for each brake individually. In the test sequence, one brake is used to hold the elevator. Then, a momentum is applied to the elevator for moving the elevator car. The current is determined by increasing the current to the engaged brake gradually until the elevator moves. When the movement is detected, the current value is stored. When the elevator is operated regularly, the additional current is added to the stored value.

    Elevator brake release monitoring
    23.
    发明授权

    公开(公告)号:US10954101B2

    公开(公告)日:2021-03-23

    申请号:US15638899

    申请日:2017-06-30

    Abstract: Brake release sensors for an elevator can be replaced by an arrangement wherein the brake release is determined from the force caused by the brake. This is achieved by providing measuring device for measuring the weight of an elevator car between the brake and the motor body so that the weight of the elevator car is measured only when the brake is on.

    METHOD AND AN ELEVATOR FOR AUTOMATIC ELEVATOR CONDITION CHECKING

    公开(公告)号:US20190330017A1

    公开(公告)日:2019-10-31

    申请号:US16506789

    申请日:2019-07-09

    Abstract: A method and an apparatus for automatic condition checking of an elevator are provided, wherein an elevator car of the elevator is situated in a door zone of a first landing in an elevator shaft following an earthquake. The method includes determining whether the load carried by hoisting ropes is evenly distributed between the hoisting ropes by checking the status or measurement data of at least one rope tension measurement device. The test unit determines whether the elevator car is empty and conducts a drive test for the elevator car in order to determine unimpeded access for the elevator car to other landings. The elevator is returned to normal use, if the drive test indicates unimpeded access for the elevator car to the other landings.

    Arrangement and a method for testing elevator safety gear

    公开(公告)号:US10399818B2

    公开(公告)日:2019-09-03

    申请号:US15170344

    申请日:2016-06-01

    Abstract: A control arrangement of an elevator includes a safety gear, an over speed governor with a rope which is connected to the safety gear, a stopping device for generating an actuating force to the safety gear, and a drive unit for driving the elevator apparatus. In order to facilitate easy and efficient maintenance, the control arrangement includes a controller for controlling a triggered sequence to involve activating of the stopping device for braking with the safety gear, and controlling the drive unit to drive the elevator apparatus during braking with the safety gear until the safety gear stops the elevator apparatus.

    Method and elevator
    26.
    发明授权

    公开(公告)号:US10336576B2

    公开(公告)日:2019-07-02

    申请号:US15391007

    申请日:2016-12-27

    Abstract: A method for testing operation of an elevator including an elevator car includes starting movement of the elevator car; and thereafter starting a stopping sequence for stopping movement of the elevator car; and monitoring movement of the elevator car, the monitoring preferably including monitoring acceleration of the elevator car; and detecting a predefined response in movement of the elevator car, the predefined response preferably being cease of acceleration of the elevator car; and determining time elapsed between the starting a stopping sequence and the detected predefined response in movement of the elevator car, wherein the response is preferably cease of acceleration, for thereby determining reaction time of the elevator; and comparing the time elapsed with at least one reference, such as with at least one predefined threshold. An elevator is provided for implementing the method.

    METHOD AND ELEVATOR
    28.
    发明申请
    METHOD AND ELEVATOR 审中-公开

    公开(公告)号:US20170197804A1

    公开(公告)日:2017-07-13

    申请号:US15391007

    申请日:2016-12-27

    Abstract: A method for testing operation of an elevator including an elevator car includes starting movement of the elevator car; and thereafter starting a stopping sequence for stopping movement of the elevator car; and monitoring movement of the elevator car, the monitoring preferably including monitoring acceleration of the elevator car; and detecting a predefined response in movement of the elevator car, the predefined response preferably being cease of acceleration of the elevator car; and determining time elapsed between the starting a stopping sequence and the detected predefined response in movement of the elevator car, wherein the response is preferably cease of acceleration, for thereby determining reaction time of the elevator; and comparing the time elapsed with at least one reference, such as with at least one predefined threshold. An elevator is provided for implementing the method.

    Method and device for a safe emergency stop of an elevator
    29.
    发明授权
    Method and device for a safe emergency stop of an elevator 有权
    电梯安全紧急停止的方法和装置

    公开(公告)号:US09434575B2

    公开(公告)日:2016-09-06

    申请号:US13855302

    申请日:2013-04-02

    CPC classification number: B66B1/32 B66B1/308 B66B5/0031 B66B5/02 H02P3/02 H02P3/18

    Abstract: A method and a safety device for implementing the method are provided in connection with a quick stop situation of an elevator. In the method, an activation process of a machinery brake is started and also a disconnection process of the current supply of the elevator motor is started after the starting of the activation process of a machinery brake.

    Abstract translation: 结合电梯的快速停止情况提供了实现该方法的方法和安全装置。 在该方法中,机械制动器的启动处理开始,并且在机械制动器的启动处理开始之后还开始电梯电机的电流供应的断开处理。

    BRAKE CONTROLLER, ELEVATOR SYSTEM AND A METHOD FOR PERFORMING AN EMERGENCY STOP WITH AN ELEVATOR HOISTING MACHINE DRIVEN WITH A FREQUENCY CONVERTER
    30.
    发明申请
    BRAKE CONTROLLER, ELEVATOR SYSTEM AND A METHOD FOR PERFORMING AN EMERGENCY STOP WITH AN ELEVATOR HOISTING MACHINE DRIVEN WITH A FREQUENCY CONVERTER 有权
    制动控制器,电梯系统和用频率转换器驱动电梯机器执行紧急停机的方法

    公开(公告)号:US20150053507A1

    公开(公告)日:2015-02-26

    申请号:US14533764

    申请日:2014-11-05

    Abstract: A brake controller, an elevator system and a method for performing an emergency stop are provided. The brake controller includes an input for connecting the brake controller to the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator, an output for connecting the brake controller to the electromagnet of the brake, a switch for supplying electric power from the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator via the output to the electromagnet of a brake, and also a processor with which the operation of the brake controller is controlled by producing control pulses in the control pole of the switch of the brake controller.

    Abstract translation: 提供一种制动控制器,电梯系统和执行紧急停止的方法。 制动控制器包括用于将制动控制器连接到驱动电梯的曳引机的变频器的直流中间电路的输入端,用于将制动控制器连接到制动器的电磁体的输出端, 变频器的直流中间电路通过输出向电梯的曳引机驱动制动器的电磁体,以及处理器,其通过在开关的开关的控制极中产生控制脉冲来控制制动控制器的操作 制动控制器。

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