Transportation apparatus
    1.
    发明授权
    Transportation apparatus 失效
    运输工具

    公开(公告)号:US4600865A

    公开(公告)日:1986-07-15

    申请号:US666065

    申请日:1984-10-29

    CPC classification number: H02P3/04 B66B25/00

    Abstract: Transportation apparatus, such as escalators and moving walks, having controlled stopping characteristics. Deceleration is directly regulated via a deceleration servo loop which provides a current reference signal for an inner current loop. Brake current limiting prior to the controlled stop, as well as mechanically limiting the maximum brake gap, results in faster transient response, and a more linear braking torque versus brake current characteristics. Multiple drive units operate from a common deceleration reference signal, while having independent servo loops each operating from a "local" deceleration signal.

    Abstract translation: 诸如自动扶梯和移动步道的运输装置具有控制的停止特性。 减速通过减速伺服回路直接调节,减速伺服回路为内部电流回路提供电流参考信号。 控制停止之前的制动电流限制以及机械限制最大制动器间隙,导致更快的瞬态响应,以及更线性的制动转矩对制动电流特性的影响。 多个驱动单元通过公共减速参考信号进行操作,同时具有独立的伺服回路,每个伺服回路均由“局部”减速信号运行。

    Elevator system
    2.
    发明授权
    Elevator system 失效
    电梯系统

    公开(公告)号:US4128141A

    公开(公告)日:1978-12-05

    申请号:US813560

    申请日:1977-07-07

    CPC classification number: B66B5/10

    Abstract: An elevator system including an elevator car mounted for guided movement in a vertical travel path. A signal related to car velocity is modified by a signal related to car acceleration. The modified velocity signal is utilized in a speed monitoring system which monitors car speed as a function of car position adjacent the travel limits of the elevator car.

    Abstract translation: 一种电梯系统,包括安装用于在垂直行进路径中引导运动的电梯轿厢。 与汽车速度相关的信号由与汽车加速度相关的信号修改。 改进的速度信号被用在速度监测系统中,该系统监测作为与电梯轿厢的行驶极限相邻的汽车位置的函数的轿厢速度。

    Elevator system
    3.
    发明授权
    Elevator system 失效
    电梯系统

    公开(公告)号:US4085823A

    公开(公告)日:1978-04-25

    申请号:US628448

    申请日:1975-11-03

    CPC classification number: B66B1/3492 B66B5/10

    Abstract: An elevator system including an elevator car and counterweight mounted for movement in a structure by a traction drive arrangement which includes a drive sheave and a drive motor. A first tachometer provides signals responsive to the drive motor and a second tachometer provides signals responsive to movement of the elevator car. The signals from the first and second tachometers are used in both functional and monitoring circuits to control the operation of the elevator system in a highly efficient self-checking manner.

    Abstract translation: 一种电梯系统,包括电梯轿厢和配重,其安装成通过包括驱动绳轮和驱动电机的牵引驱动装置在结构中移动。 第一转速表提供响应于驱动马达的信号,第二转速计提供响应于电梯轿厢运动的信号。 来自第一和第二转速计的信号用于功能和监控电路,以高效自检方式控制电梯系统的操作。

    PWM inverter
    4.
    发明授权
    PWM inverter 失效
    PWM逆变器

    公开(公告)号:US4656572A

    公开(公告)日:1987-04-07

    申请号:US896568

    申请日:1986-08-14

    CPC classification number: H02M7/53873

    Abstract: A PWM inverter in which the maximum three-phase RMS pole-to-pole output voltage is increased, to more efficiently utilize a fixed DC power supply, by generating substantially sinusoidal changing pole voltages having no values within predetermined zones adjacent to each power supply limit, and by switching each pole voltage to a power supply limit for a predetermined number of electrical degrees during each half cycle, resulting in step changes in the pole voltage waveforms from the substantially sinusoidal changing waveform to a fixed power supply limit.

    Abstract translation: 通过在与每个电源极限相邻的预定区域内产生基本上没有值的正弦变化极电压,增加最大三相RMS极 - 极输出电压以更有效地利用固定DC电源的PWM逆变器 ,并且通过在每个半周期期间将每个极点电压切换到预定数量的电度的电源极限,导致极电压波形从基本上正弦变化波形到固定电源极限的阶跃变化。

    Elevator system
    5.
    发明授权
    Elevator system 失效
    电梯系统

    公开(公告)号:US4373612A

    公开(公告)日:1983-02-15

    申请号:US210439

    申请日:1980-11-25

    CPC classification number: B66B1/285

    Abstract: An elevator system including an elevator car, and control apparatus for controlling its speed, including a floor selector and a speed pattern generator. The speed pattern generator provides a running speed pattern, and a slowdown speed pattern. A smooth transfer from the running speed pattern to the slowdown speed pattern is achieved by the generation of first and second deceleration signals, and a transfer signal. When the floor selector issues a slowdown signal, the slowdown speed pattern is initiated and the first deceleration signal causes the running speed pattern to have a zero rate of change. First and second different relationships between the running speed pattern and the slowdown speed pattern then successively cause the issuance of the second deceleration signal and the transfer signal, with the second deceleration signal causing the running speed pattern to have a predetermined constant rate of change, less than that of the slowdown speed pattern, such that the patterns intersect. Pattern equality causes the issuance of the transfer signal, which initiates the substitution of the slowdown speed pattern for the running speed pattern.

    Abstract translation: 一种包括电梯轿厢的电梯系统和用于控制其速度的控制装置,包括地板选择器和速度模式发生器。 速度模式发生器提供运行速度模式和减速速度模式。 通过产生第一和第二减速信号和传送信号,实现从运行速度模式到减速速度模式的平滑传送。 当地板选择器发出减速信号时,启动减速速度模式,第一减速信号使运行速度模式具有零变化率。 运行速度模式和减速速度模式之间的第一和第二不同关系然后连续地引起第二减速信号和传送信号的发出,第二减速信号使运行速度模式具有预定的恒定变化率,更少 比减速速度图案的图案相交。 模式相等引起传输信号的发出,其启动对运行速度模式的减速速度模式的替换。

    Elevator system
    6.
    发明授权
    Elevator system 失效
    电梯系统

    公开(公告)号:US4308936A

    公开(公告)日:1982-01-05

    申请号:US122339

    申请日:1980-02-19

    CPC classification number: B66B5/02 B66B1/36

    Abstract: An elevator system including a comparator which develops a control signal responsive to the actual versus the designed performance of the elevator car as it approaches a floor at which it is to stop. This control signal is used in a monitoring and protective arrangement which controls pre-opening of the doors before the elevator car stops at a floor, as well as providing additional protection relative to the operation of the elevator car after it has made an inaccurate landing, and back-up protection for any movement of the elevator car with its doors open.

    Abstract translation: 一种电梯系统,包括比较器,其响应于电梯轿厢接近要停止的地板时的实际与设计的性能而发展控制信号。 该控制信号用于在电梯轿厢停在地板之前控制门的预打开的监视和保护装置,并且在电梯轿厢做出不准确的着陆之后提供相对于电梯轿厢的操作的附加保护, 以及电梯轿厢门打开时任何运动的后备保护。

    Elevator system
    7.
    发明授权
    Elevator system 失效
    电梯系统

    公开(公告)号:US4155427A

    公开(公告)日:1979-05-22

    申请号:US748255

    申请日:1976-12-06

    CPC classification number: H02H3/253 B66B5/0006

    Abstract: An elevator system including an elevator car, a drive motor for the elevator car, a power supply for the drive motor which includes a three-phase source of alternating potential, and a monitor for the three-phase source. The monitor discriminates between a malfunction of the three-phase source which should initiate shutdown of the elevator system, and a momentary disturbance which should be ignored.

    Abstract translation: 一种电梯系统,包括电梯轿厢,用于电梯轿厢的驱动电动机,用于包括交流电位的三相源的驱动电动机的电源以及用于三相电源的监视器。 监视器鉴别应该启动电梯系统关闭的三相电源的故障与应该忽略的瞬时干扰。

    Method and apparatus for smoothly stopping an elevator car at a target
floor
    8.
    发明授权
    Method and apparatus for smoothly stopping an elevator car at a target floor 失效
    在目标楼层平稳地停止电梯轿厢的方法和装置

    公开(公告)号:US4776434A

    公开(公告)日:1988-10-11

    申请号:US150331

    申请日:1987-07-29

    CPC classification number: B66B1/40 B66B1/285

    Abstract: A method and apparatus for smoothly stopping an elevator car at a target floor in an elevator system which utilizes a speed pattern to control car speed via a speed feedback control loop. When the elevator car reaches a predetermined slowdown point relative to a target floor, the speed pattern is changed towards a predetermined minimum non-zero value, with the non-zero value being selected to insure that the car will reach the floor in the event of error in the arrangement used to change the value of the speed pattern. The speed pattern value is then independently forced to a value indicative of zero car speed in response to a detector which detects the actual presence of the elevator car as it reaches a predetermined small dimension from the target floor, to stop the car at floor level, before a holding brake is applied.

    Abstract translation: 一种用于在电梯系统中的目标楼层平稳地停止电梯轿厢的方法和装置,其利用速度模式经由速度反馈控制回路来控制轿厢速度。 当电梯轿厢相对于目标楼层达到预定的减速点时,将速度模式改变为预定的最小非零值,其中选择非零值以确保汽车将在 用于更改速度模式值的布置中的错误。 然后,速度模式值被独立地强制为表示零轿厢速度的值,响应于检测器,当检测到电梯轿厢的实际存在从目标地板到达预定的小尺寸时,停止轿厢在楼层, 在施加抱闸之前。

    Method for providing a load compensation signal for a traction elevator
system
    9.
    发明授权
    Method for providing a load compensation signal for a traction elevator system 失效
    为牵引电梯系统提供负载补偿信号的方法

    公开(公告)号:US4754850A

    公开(公告)日:1988-07-05

    申请号:US102069

    申请日:1987-07-29

    CPC classification number: B66B1/28

    Abstract: A method for providing a load compensation signal for the drive motor control loop of a traction elevator system which includes an elevator car, a counterweight, and a drive which includes a drive motor, brake, and traction drive sheave. The brake is mounted to provide an indication of the direction of unbalanced brake torque, with the method including the step of detecting unbalanced brake torque when the elevator car is stationary. A car load compensation signal is provided in response to the detecting step, with the compensation signal transferring the unbalanced torque from the brake to the drive motor, building up the motor current to provide motor torque sufficient to hold the car stationary while the brake torque is reduced to zero. The method then continues by using the motor current to provide car loading signals for use by the supervisory control portion of the elevator system.

    Abstract translation: 一种用于提供牵引电梯系统的驱动电动机控制回路的负载补偿信号的方法,所述牵引电梯系统包括电梯轿厢,配重和包括驱动电动机,制动器和牵引驱动绳轮的驱动器。 制动器安装成提供不平衡制动转矩的方向的指示,其方法包括当电梯轿厢静止时检测不平衡制动转矩的步骤。 响应于检测步骤提供汽车负载补偿信号,其中补偿信号将来自制动器的不平衡转矩传递到驱动电动机,建立电动机电流,以提供足够的电动机转矩,以便在制动转矩为 减至零。 该方法然后通过使用电动机电流来继续提供用于电梯系统的监控部分使用的轿厢负载信号。

    Method and apparatus for providing a load compensation signal for a
traction elevator system
    10.
    发明授权
    Method and apparatus for providing a load compensation signal for a traction elevator system 失效
    用于为牵引电梯系统提供负载补偿信号的方法和装置

    公开(公告)号:US4738337A

    公开(公告)日:1988-04-19

    申请号:US79201

    申请日:1987-07-29

    CPC classification number: B66B1/28

    Abstract: A method and apparatus for providing a load compensation signal for the drive motor control loop of a traction elevator system which includes an elevator car having a load responsive platform and a counterweight. The load compensation signal transfers unbalanced torque from the system brake to the drive motor at the start of the run, to provide smooth starts. The load compensation signal is heavily filtered to provide a response time which will follow changes in car loading but too slow to affect car dynamics. Thus, the load compensation signal is continuously connected to the motor control loop, eliminating switches and memories, and enabling the compensation signal to directly aid car landing. Non-linearities in the load responsive platform are partially compensated for by three initial adjustments, and a fourth adjustment is provided for periodically offsetting changes due to ageing of platform isolation materials.The load compensation signal may be added directly to the motor control loop, or further processed to account for hoist cable weight compensation error at the location of the elevator car.

    Abstract translation: 一种用于提供用于牵引电梯系统的驱动电动机控制回路的负载补偿信号的方法和装置,其包括具有负载响应平台和配重的电梯轿厢。 负载补偿信号在运行开始时将系统制动器的不平衡转矩传递给驱动电机,以提供平稳启动。 负载补偿信号被大量过滤以提供响应时间,该响应时间将跟随汽车负载的变化,但是太慢而不影响汽车动力学。 因此,负载补偿信号连续地连接到电动机控制回路,消除开关和存储器,并且使得补偿信号能够直接辅助汽车着陆。 负载响应平台中的非线性度通过三次初始调整进行部分补偿,并提供第四调整,用于周期性地抵消由于平台隔离材料老化引起的变化。 负载补偿信号可以直接添加到电动机控制回路,或进一步处理以解决电梯轿厢位置处的起重电缆重量补偿误差。

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