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7 条记录 (耗时 0.01 秒)

    Load-based control of an AC motor
    2.
    发明授权
    Load-based control of an AC motor 失效
    交流电机的基于负载的控制

    公开(公告)号：US4987351A

    公开(公告)日：1991-01-22

    申请号：US464056

    申请日：1990-01-11

    申请人： Robert J. Disser ,  Jeff A. Foust ,  Richard N. Lehnhoff ,  Donald E. Graham ,  Bruce A. Heaston

    发明人： Robert J. Disser ,  Jeff A. Foust ,  Richard N. Lehnhoff ,  Donald E. Graham ,  Bruce A. Heaston

    IPC分类号： G05B23/02 ,  H02P5/46 ,  H02P23/00 ,  H02P27/08

    CPC分类号： H02P27/08 ,  H02P23/0077

    摘要： An AC motor control based on an iterative computation of the motor load and method of accurately determining motor load. At the initiation of motor operation, the load term (%LOAD) is initialized to zero, and the motor is energized in accordance with a predetermined voltage and frequency schedule for producing motor rotation. During the starting interval the power loss term LOSSES and the load term (%LOAD) are iteratively computed as a function of the input voltage and current (V.sub.bus, I.sub.bus) and the motor inverter frequency (IF). When a predetermined motor speed has been achieved, the run mode is initiated. At this point, the load is known based on the iterative load calculations performed during starting, and the motor voltage and inverter frequency are scheduled as a function of motor speed and load. The iterative computation of losses and load continue during the run mode so that changes in the motor load are taken into account.

    摘要翻译： 基于电机负载的迭代计算的交流电动机控制和精确确定电动机负载的方法。 在电机运行开始时，负载项（％LOAD）被初始化为零，并且电动机根据用于产生电动机旋转的预定电压和频率调度被激励。 在起动间隔期间，功率损耗项LOSSES和负载项（％LOAD）根据输入电压和电流（Vbus，Ibus）和电机逆变器频率（IF）的函数进行迭代计算。 当达到预定的电动机速度时，启动运行模式。 此时，负载根据启动期间的迭代负载计算而得知，电动机电压和逆变器频率作为电机转速和负载的函数进行调度。 损耗和负载的迭代计算在运行模式下继续运行，从而考虑到电机负载的变化。

    Vehicle suspension control with actuating circuit protection
    3.
    发明授权
    Vehicle suspension control with actuating circuit protection 失效
    车辆悬架控制与致动电路保护

    公开(公告)号：US4763222A

    公开(公告)日：1988-08-09

    申请号：US37775

    申请日：1987-04-13

    申请人： Bruce A. Heaston ,  Jeff A. Foust

    发明人： Bruce A. Heaston ,  Jeff A. Foust

    IPC分类号： B60G17/0185 ,  H02H3/06 ,  H02H3/087 ,  H01H47/18

    CPC分类号： B60G17/0185 ,  H02H3/06 ,  H02H3/087 ,  Y10T307/779 ,  Y10T307/885

    摘要： A motor vehicle suspension control includes a solenoid actuator having an actuating coil connected in series with a transistor across an electric power source and circuit protection apparatus for the transistor. The voltage across the transistor is monitored, after a short time delay following turn-on, as a signal indicative of excessive current therethrough. If the signal so indicates, the transistor is turned off for a period of time and then turned on again for another try. This continues for a predetermined maximum number of attempts. Specific clocked digital circuitry is disclosed for controlling the operation and producing the different required time delays or counts.

    摘要翻译： 机动车辆悬架控制器包括具有与晶体管串联连接的驱动线圈的电磁致动器，该驱动线圈跨越电源和用于晶体管的电路保护装置。 在导通之后的短时间延迟之后，监视晶体管上的电压作为指示通过其中的过大电流的信号。 如果信号如此指示，晶体管关闭一段时间，然后再次打开另一个尝试。 这继续达到预定的最大尝试次数。 公开了具体的时钟数字电路，用于控制操作并产生不同的所需时间延迟或计数。

    Level shift circuits and related methods
    5.
    发明授权
    Level shift circuits and related methods 有权
    电平移位电路及相关方法

    公开(公告)号：US07049876B2

    公开(公告)日：2006-05-23

    申请号：US10973018

    申请日：2004-10-25

    申请人： Bruce A. Heaston

    发明人： Bruce A. Heaston

    IPC分类号： H03L5/00

    CPC分类号： H03K19/017527 ,  H03K19/01812

    摘要： A level shifting circuit functions by taking an input signal, producing a complement of the input signal, applying the input signal and its complement to comparable voltage divider pairs to set up a differential input signal that is applied to a comparator that produces a shifted output signal.

    摘要翻译： 电平移位电路通过获取输入信号，产生输入信号的补码，将输入信号及其补码施加到可比较的分压器对来建立输入信号，该差分输入信号被施加到产生移位输出信号的比较器 。

    Bi-state hydraulic mount with integral controller
    6.
    发明授权
    Bi-state hydraulic mount with integral controller 有权
    双态液压安装带集成控制器

    公开(公告)号：US07036804B2

    公开(公告)日：2006-05-02

    申请号：US10637054

    申请日：2003-08-07

    申请人： Mark O. Bodie ,  Mark W. Long ,  Sanjiv Tewani ,  Ronald Beer ,  Bruce A. Heaston ,  Brandon Fedders

    发明人： Mark O. Bodie ,  Mark W. Long ,  Sanjiv Tewani ,  Ronald Beer ,  Bruce A. Heaston ,  Brandon Fedders

    IPC分类号： F16F13/00 ,  F16F15/00 ,  F16F5/00 ,  F16F9/00 ,  F16M11/00

    CPC分类号： F16F13/20 ,  F16F13/268

    摘要： A hydraulic mount having first and second fluid tracks, and a decoupler functioning as an air spring with two remotely selectable settings. The settings allow tailoring of the air spring characteristics to provide mount damping for differing engine operating states, such as engine idle. A solenoid is used to select a smaller or larger air volume to control the characteristics of the air spring and, in turn, the dynamic response of the hydraulic mount. An integral controller provides switched operation of the solenoid and compensates for variations in temperature and input voltage, as well as minimizing electrical noise generated by the solenoid when it is energized.

    摘要翻译： 具有第一和第二流体轨道的液压支架和用作具有两个远程可选设置的空气弹簧的去耦器。 这些设置允许调整空气弹簧特性，以提供不同发动机运行状态（例如发动机空转）的安装阻尼。 螺线管用于选择更小或更大的风量，以控制空气弹簧的特性，进而影响液压支架的动态响应。 集成控制器提供螺线管的开关操作，并补偿温度和输入电压的变化，以及最大限度地减少螺线管通电时产生的电噪声。

    Power latch circuit for computer self deactivation
    7.
    发明授权
    Power latch circuit for computer self deactivation 失效
    用于计算机自动停用的电源锁存电路

    公开(公告)号：US4685023A

    公开(公告)日：1987-08-04

    申请号：US930519

    申请日：1986-11-14

    申请人： Bruce A. Heaston

    发明人： Bruce A. Heaston

    IPC分类号： F02D41/26 ,  G06F1/26 ,  H02H3/24

    CPC分类号： F02D41/266 ,  G06F1/26

    摘要： A power latch circuit uses first and second bipolar transistors responsive to an actuate voltage to latch into a conductive state with power supplied to a computer and a third bipolar transistor powered by the latch circuit and responsive to a deactivate voltage from the computer to place the first and second transistors in a deactivated state to remove power from the computer and itself. It further uses an FET in parallel with the third bipolar transistor and activated directly from the DC power supply when the second transistor is deactivated to latch the first and second transistors in the deactivated state in spite of voltage fluctuations on the deactivate line which might otherwise cause the latch circuit to reactivate. As an FET, it uses little current through its gate compared to alternative bipolar devices while the latch circuit is deactivated.

    摘要翻译： 电源锁存电路使用响应于致动电压的第一和第二双极晶体管，其锁存到导通状态，电源被提供给计算机，第三双极晶体管由锁存电路驱动，并响应来自计算机的去激活电压以将第一 和处于去激活状态的第二晶体管，以从计算机及其本身移除功率。 它进一步使用与第三双极晶体管并联的FET，并且当第二晶体管被去激活时，直接从DC电源激活，尽管在去激活线上的电压波动，但是第一和第二晶体管处于去激活状态，否则可能导致 锁存电路重新激活。 作为FET，与替代的双极型器件相比，其门极少使用电流，而锁存电路被去激活。