DRIVE SYSTEM AND METHOD FOR CONTROLLING A DRIVE SYSTEM

    公开(公告)号:US20220289521A1

    公开(公告)日:2022-09-15

    申请号:US17830564

    申请日:2022-06-02

    Abstract: A drive system for driving an electric motor includes a drive control unit and a frequency converter including a speed controller. The drive control unit is configured to: define a speed reference of the electric motor; preset operating parameters of the speed controller to provide a first response time of the speed controller, before a drive of the electric motor is initiated; adjust at least one operating parameter of the speed controller to provide a second response time of the speed controller, after the speed of the electric motor reaches a constant speed, wherein the second response time is slower than the first response time; and readjust the at least one operating parameter of the speed controller to provide the first response time, before a deceleration from the constant speed is initiated. A method is disclosed for controlling the drive system for driving the electric motor.

    ELEVATOR AND METHOD FOR THE USE OF AN ELEVATOR CONTROL SYSTEM IN MONITORING THE LOAD OF A CAR AND/OR TO DETERMINE THE LOAD SITUATION
    2.
    发明申请
    ELEVATOR AND METHOD FOR THE USE OF AN ELEVATOR CONTROL SYSTEM IN MONITORING THE LOAD OF A CAR AND/OR TO DETERMINE THE LOAD SITUATION 审中-公开
    使用电梯控制系统监测车辆负载和/或确定负载状况的电梯和方法

    公开(公告)号:US20160221794A1

    公开(公告)日:2016-08-04

    申请号:US15092725

    申请日:2016-04-07

    CPC classification number: B66B5/14

    Abstract: An elevator includes a control system for monitoring the load of a car, which control system is adapted to prevent the normal starting of the elevator, optionally also including relevelling, when there is an overload in the car. The elevator includes at least one position measuring device, speed measuring device and/or movement measuring device in order to determine the movement and/or position of the car, and the control system of the elevator is adapted to remove the prevention of normal starting when at least one said position measuring device, speed measuring device and/or movement measuring device detects that the car moved or is moving upwards in the elevator shaft. In the method, the control system of the elevator is used to determine the load situation of the car, including both the steps to prevent the normal starting of the elevator, optionally also including relevelling, when there is an overload in the car and to open some of the machinery brakes and to keep the remaining machinery brakes closed in order to determine the load situation.

    Abstract translation: 电梯包括用于监测汽车的负载的控制系统,当汽车中存在过载时,该控制系统适于防止电梯的正常起动,并且可选地还包括相关联。 电梯包括至少一个位置测量装置,速度测量装置和/或运动测量装置,以便确定汽车的运动和/或位置,并且电梯的控制系统适于消除正常启动的防止 至少一个所述位置测量装置,速度测量装置和/或移动测量装置检测到轿厢在电梯井中移动或正在向上移动。 在该方法中,电梯的控制系统用于确定汽车的负载情况,包括两个步骤,以防止电梯的正常启动,可选地还包括相关的,当汽车有过载并打开 一些机械制动器,并保持剩余的机械制动器关闭,以确定负载情况。

    ELEVATOR
    3.
    发明公开
    ELEVATOR 审中-公开

    公开(公告)号:US20240239634A1

    公开(公告)日:2024-07-18

    申请号:US18621741

    申请日:2024-03-29

    CPC classification number: B66B5/16 B66B1/32 B66B5/028

    Abstract: An elevator includes a manual active dynamic braking function, which elevator includes an elevator control for operating at least one elevator car in at least one elevator driveway between landing floors in response to elevator calls, an AC elevator motor, which is able to generate power in a generator mode, a motor drive connected to the elevator control for the regulation of the speed of the elevator motor, including a frequency converter, whereby the frequency converter of the motor drive includes a rectifier bridge and an inverter bridge with semiconductor switch circuits, which rectifier bridge and inverter bridge are connected via a DC link, the motor drive further including a drive controller at least to control the semiconductor switches of the semiconductor switch circuits of the inverter bridge to regulate the elevator motor to a reference speed, whereby the semiconductor switch circuits of the inverter bridge are provided with diodes connected anti-parallel to the semiconductor switches, the motor drive including a safety logic for cutting off control pulses to the semiconductor switches, at least during power outage, at least one elevator brake is located in connection with the elevator motor and/or with a traction sheave of the elevator motor, a manual brake release lever is functionally linked to the elevator brake, movable between a rest position and at least one operating position to release the elevator brake manually. The motor drive includes a bypass switch being arranged to operate the safety logic, as to enable dynamical braking of the elevator motor by connecting the semiconductors of the semiconductor switch circuits of the inverter bridge with the drive controller, and the motor drive includes a DC supply circuit connected with the DC link, which is arranged to feed DC power at least to the drive controller and to the bypass switch to enable dynamic braking control of the semiconductor switches. The manual brake release lever is functionally connected with the bypass switch and is arranged to operate the bypass switch, when it is moved away from its rest position. Alternatively, the elevator includes a manual actuator, such as a key switch, disposed in the same location with the manual brake release lever, whereby the manual actuator is arranged to operate the manual bypass switch.

    METHOD FOR CONTROLLING AN ELEVATOR AND ELEVATOR
    4.
    发明申请
    METHOD FOR CONTROLLING AN ELEVATOR AND ELEVATOR 审中-公开
    用于控制电梯和电梯的方法

    公开(公告)号:US20160145074A1

    公开(公告)日:2016-05-26

    申请号:US15009554

    申请日:2016-01-28

    CPC classification number: B66B1/285 B66B5/022 B66B5/025 B66B9/00 G05B15/02

    Abstract: A method for controlling an elevator includes controlling the speed of a vertically moving elevator car during its run from a starting landing to a destination landing according to speed settings, the speed settings defining a constant target speed for the elevator car. The method includes obtaining measurement data of the ongoing run, which measurement data describes vertical speed and/or vertical acceleration of the vertically moving elevator car, determining whether the measurement data meets one or more predetermined criteria indicating unintended vertical speed and/or unintended vertical acceleration, and changing the speed settings of the current run by lowering the constant target speed from a first constant target speed to a second constant target speed if the measurement data meets said one or more predetermined criteria, continuing the run without intermediate stops to said destination landing. An elevator is provided to implement the method.

    Abstract translation: 一种用于控制电梯的方法包括根据速度设置控制垂直移动的电梯轿厢从起始着陆到目的地着陆期间的速度,速度设定定义电梯轿厢的恒定目标速度。 该方法包括获得正在进行的运行的测量数据,该测量数据描述垂直运动的电梯轿厢的垂直速度和/或垂直加速度,确定测量数据是否符合一个或多个预示标准,表示意外的垂直速度和/或非预期的垂直加速度 并且如果测量数据满足所述一个或多个预定标准,则通过将恒定目标速度从第一恒定目标速度降低到第二恒定目标速度来改变当前运行的速度设置,将没有中间停止的运行继续到所述目的地着陆点 。 提供电梯以实现该方法。

    METHOD FOR CONTROLLING AN ALTERNATING CURRENT ELECTRIC MACHINE, AND A FREQUENCY CONVERTER
    5.
    发明申请
    METHOD FOR CONTROLLING AN ALTERNATING CURRENT ELECTRIC MACHINE, AND A FREQUENCY CONVERTER 有权
    控制替代电流电机的方法和频率转换器

    公开(公告)号:US20150229251A1

    公开(公告)日:2015-08-13

    申请号:US14601979

    申请日:2015-01-21

    Inventor: Lauri STOLT

    CPC classification number: H02P6/10 H02P6/06 H02P29/50 H02P2209/07

    Abstract: Invention is related to a method for controlling an alternating current electric machine with a frequency converter including a controllable machine bridge and a controllable line bridge, and a corresponding frequency converter. The method comprises calculating a line bridge control signal, controlling line current through the line bridge using the line bridge control signal, measuring or estimating rotor pole position of the electric machine, calculating a machine bridge control signal as a function of the rotor pole position, updating the machine bridge control signal when the rotor pole position changes, and controlling current of the electric machine through the machine bridge using the machine bridge control signal.

    Abstract translation: 本发明涉及一种具有变频器的交流电机控制方法,所述变频器包括可控机桥和可控制线路桥以及相应的变频器。 该方法包括计算线路桥控制信号,通过线桥控制信号控制线路电流,测量或估计电机转子极位置,计算机桥控制信号作为转子极位置的函数, 当转子极位置发生变化时更新机桥控制信号,并通过机桥控制信号通过机桥控制电机的电流。

    CONTROL OF OPERATION OF A CONVEYOR SYSTEM
    6.
    发明公开

    公开(公告)号:US20230339722A1

    公开(公告)日:2023-10-26

    申请号:US18216929

    申请日:2023-06-30

    Inventor: Lauri STOLT

    CPC classification number: B66B1/3415

    Abstract: The invention relates to a method for monitoring an activity of a user controlling an operation of a conveyor system with a remote control device, the method comprises: receiving control data from the remote control device, the control data defining user input provided at least in accordance with time; comparing the control data to a reference data; and setting, in accordance with a comparison between the control data and the reference data, a detection result to express one of the following: (i) a continuation of the operation of the conveyor system, (ii) a discontinuation of the operation of the conveyor system. The invention also relates to a control device, to a system, and to a computer program product.

    ELEVATOR BRAKE RELEASE MONITORING
    8.
    发明申请
    ELEVATOR BRAKE RELEASE MONITORING 审中-公开
    电梯制动器释放监控

    公开(公告)号:US20170067943A1

    公开(公告)日:2017-03-09

    申请号:US15215357

    申请日:2016-07-20

    CPC classification number: G01R19/0038 B66B1/32 B66B5/0031

    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.

    Abstract translation: 当制动器未完全释放时,希望电梯不被操作。 因此,必须对制动器的分离进行监测或保证。 为了提供保证的开度,确定用于打开制动器的电流,然后向制动器提供额外的电流以保证开启。 单独制动每个制动器的测试顺序来确定打开制动器的电流。 在测试顺序中,使用一个制动器来固定电梯。 然后,向电梯施加动量以移动电梯轿厢。 电流通过逐渐增加到接合的制动器的电流直到电梯移动来确定。 当检测到移动时,存储当前值。 当电梯定期运行时,附加电流被加到存储的值。

    DRIVE DEVICE OF AN ELEVATOR
    9.
    发明申请
    DRIVE DEVICE OF AN ELEVATOR 有权
    电梯的驱动装置

    公开(公告)号:US20150075917A1

    公开(公告)日:2015-03-19

    申请号:US14532753

    申请日:2014-11-04

    Abstract: A drive device of an elevator includes a DC bus, a motor bridge connected to the DC bus for the electricity supply of the elevator motor, which motor bridge includes high-side and low-side switches for supplying electric power from the DC bus to the elevator motor when driving with the elevator motor, and also from the elevator motor to the DC bus when braking with the elevator motor, a control circuit of the motor bridge, with which control circuit the operation of the motor bridge is controlled by producing control pulses in the control poles of the high-side and low-side switches of the motor bridge, a brake controller, which comprises a switch for supplying electric power to the control coil of an electromagnetic brake, a brake control circuit, 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, an input circuit for the safety signal to be disconnected/connected from outside the drive device, drive prevention logic, which is connected to the input circuit and is configured to prevent the passage of control pulses to the control poles of the high-side and/or low-side switches of the motor bridge when the safety signal is disconnected, and also brake drop-out logic, which is connected to the input circuit and is configured to prevent passage of the control pulses to the control pole of the switch of the brake controller when the safety signal is disconnected.

    Abstract translation: 电梯的驱动装置包括DC总线,连接到用于电梯电机的电力供应的DC总线的电动机桥,该电动机桥包括用于将电力从DC总线提供给高压侧和低侧的开关 当与电梯电机一起驱动时,电梯电机,以及当与电梯电机一起制动时也从电梯电机到DC总线,马达桥的控制电路,控制电路通过产生控制脉冲来控制电动机桥的操作 在马达桥的高侧和低侧开关的控制极中,制动控制器包括用于向电磁制动器的控制线圈供电的开关,制动控制电路, 通过在制动控制器的开关的控制极中产生控制脉冲来控制制动控制器,用于从驱动器外部断开/连接的安全信号的输入电路 装置,驱动防止逻辑,其连接到输入电路,并且被配置为当安全信号断开时防止控制脉冲通过电动机桥的高侧和/或低侧开关的控制极, 以及连接到输入电路并且被配置为当安全信号断开时防止通过控制脉冲到制动控制器的开关的控制极的制动器脱出逻辑。

    ELEVATOR BRAKE RELEASE MONITORING
    10.
    发明申请

    公开(公告)号:US20210171317A1

    公开(公告)日:2021-06-10

    申请号:US17182747

    申请日:2021-02-23

    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.

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