利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.022 秒)

    System and method for induction motor control
    1.
    发明授权
    System and method for induction motor control 有权
    感应电机控制系统及方法

    公开(公告)号：US06630809B2

    公开(公告)日：2003-10-07

    申请号：US09683180

    申请日：2001-11-29

    申请人： Li Chen ,  Xingyi Xu ,  Vinod Reddy ,  Richard Joseph Hampo ,  Kerry Eden Grand

    发明人： Li Chen ,  Xingyi Xu ,  Vinod Reddy ,  Richard Joseph Hampo ,  Kerry Eden Grand

    IPC分类号： H02P764

    CPC分类号： H02P21/22

    摘要： Field oriented induction motor system including a field oriented induction motor having an associated torque current and an associated flux current and a predetermined current ratio, wherein the predetermined current ratio is defined as the ratio of the torque current to the flux current, and wherein the predetermined current ratio is dependent upon the saturation state of the motor. A method for selecting the ratio of torque current to flux current for a field oriented induction motor including applying an allocation factor to the torque current and flux current, wherein the allocation factor is dependent upon the saturation state of the motor. The saturation state of the motor is determined based upon motor parameters.

    摘要翻译： 磁场定向感应电动机系统包括具有相关联的转矩电流和相关联的磁通电流和预定电流比的场定向感应电动机，其中预定电流比被定义为转矩电流与磁通电流的比率，并且其中预定 电流比取决于电机的饱和状态。 一种用于选择场定向感应电动机的转矩电流与磁通电流的比率的方法，包括对转矩电流和磁通电流施加分配因子，其中分配因子取决于电动机的饱和状态。 电动机的饱和状态根据电机参数确定。

    System and method for induction motor control
    3.
    发明授权
    System and method for induction motor control 有权
    感应电机控制系统及方法

    公开(公告)号：US06707270B2

    公开(公告)日：2004-03-16

    申请号：US10010307

    申请日：2001-11-13

    申请人： Li Chen ,  Kerry Eden Grand ,  Richard Joseph Hampo ,  Vinod Reddy ,  Xingyi Xu ,  Nick Langovsky

    发明人： Li Chen ,  Kerry Eden Grand ,  Richard Joseph Hampo ,  Vinod Reddy ,  Xingyi Xu ,  Nick Langovsky

    IPC分类号： H02P736

    CPC分类号： H02P21/08

    摘要： System and method for enhancing the torque output of a field oriented induction motor including a controller having a plurality of predetermined control parameters operable for processing input signals to generate output signals. The plurality of predetermined control parameters are dependent upon the nature of the input signals and the operational state of the motor. A sensor system is operable for communicating feedback signals related to the output signals and the operational state of the motor from the motor to the controller.

    摘要翻译： 一种用于增强磁场定向感应电机的转矩输出的系统和方法，包括具有可操作用于处理输入信号以产生输出信号的多个预定控制参数的控制器。 多个预定控制参数取决于输入信号的性质和电动机的操作状态。 传感器系统可操作用于将与输出信号相关的反馈信号和马达的运行状态从马达传送到控制器。

    Starter/alternator control strategy to enhance driveability of a low storage requirement hybrid electric vehicle
    4.
    发明授权
    Starter/alternator control strategy to enhance driveability of a low storage requirement hybrid electric vehicle 有权
    起动机/交流发电机控制策略，以提高低存储要求混合动力电动汽车的驾驶性能

    公开(公告)号：US06394208B1

    公开(公告)日：2002-05-28

    申请号：US09539512

    申请日：2000-03-30

    申请人： Richard Joseph Hampo ,  Xingyi Xu

    发明人： Richard Joseph Hampo ,  Xingyi Xu

    IPC分类号： B60K100

    CPC分类号： B60W10/08 ,  B60K6/48 ,  B60L2240/445 ,  B60W10/26 ,  B60W2050/0045 ,  B60W2510/0676 ,  Y02T10/6221 ,  Y02T90/16

    摘要： A hybrid electric vehicle contains a powerplant for propelling the vehicle. The powerplant comprises a combustion engine (6) and a dynamoelectric machine (8). A control system (10) issues a wheel torque command corresponding to torque desired at road-engaging wheels, and includes an engine controller (16) for issuing an engine torque command and a dynamoelectric machine controller (18) for issuing a dynamoelectric machine torque command. Controller (18) contains one or more maps and/or profiles defining functional relationship of torque to engine crankshaft speed and/or position over a range of crankshaft speeds and/or positions. The maps and/or profiles are used to develop make-up torque that is delivered by the dynamoelectric machine to accomplish certain smoothing functions. Transmission gear shifts can be smoothed by using the dynamoelectric machine controller to slew the engine to a new target speed appropriate to the new gear. A dedicated, high-speed data communication link supplies crankshaft speed and position information from an engine-mounted sensor directly to controller (18).

    摘要翻译： 混合电动车辆包含用于推进车辆的动力装置。 动力装置包括内燃机（6）和电动机（8）。 控制系统（10）发出对应于道路接合轮所需的扭矩的车轮扭矩指令，并且包括用于发出发动机转矩指令的发动机控制器（16）和用于发出电动机械转矩指令的电动机械控制器（18） 。 控制器（18）包含定义扭矩与发动机曲轴速度和/或曲轴速度和/或位置范围上的位置的功能关系的一个或多个地图和/或轮廓。 地图和/或轮廓用于开发由电动机提供的补偿扭矩以实现某些平滑功能。 通过使用电动机械控制器将发动机旋转到适合新齿轮的新目标速度，可以平滑变速器档位。 专用的高速数据通信链路将来自发动机安装的传感器的曲轴速度和位置信息直接提供给控制器（18）。

    Motor starter and speed controller system
    5.
    发明授权
    Motor starter and speed controller system 失效
    电机启动器和速度控制器系统

    公开(公告)号：US06366049B1

    公开(公告)日：2002-04-02

    申请号：US09567592

    申请日：2000-05-10

    申请人： Li Chen ,  Richard Joseph Hampo ,  Yifan Zhao

    发明人： Li Chen ,  Richard Joseph Hampo ,  Yifan Zhao

    IPC分类号： H02P528

    CPC分类号： H02P1/26

    摘要： A speed controller circuit for a motor including a ramp function generator having a first input connected to a source of a speed demand signal and a second input connected to a ramp step signal. The ramp function generator develops a frequency ramp that has a slope is initiated by the speed demand signal which is adjusted in response to the ramp step signal. The ramp function generator also provides a frequency signal wherein the ramp function increases or decreases the frequency according to the speed demand. A V/F circuit to the ramp function generator and a space vector modulation circuit are connected to the V/F circuit. The output of the space vector modulation circuit is applied through power switching devices to the motor for speed control. A PI controller circuit is connected to a motor current feedback signal and to a maximum current signal, which provides the current limit of the control system. The output signal from the PI controller circuit is a ramp step signal used to adjust the ramp signal of the ramp function generator to provide to provide the best performance of the motor control system and achieve a better starting time for the motor.

    摘要翻译： 一种用于电动机的速度控制器电路，其包括具有连接到速度要求信号的源的第一输入和连接到斜坡阶跃信号的第二输入的斜坡函数发生器。 斜坡函数发生器产生一个频率斜坡，其斜率由响应于斜坡阶跃信号调整的速度需求信号启动。 斜坡函数发生器还提供频率信号，其中斜坡函数根据速度需求增加或减少频率。 与斜坡函数发生器和空间矢量调制电路的V / F电路连接到V / F电路。 空间矢量调制电路的输出通过功率开关器件施加到电机进行速度控制。 PI控制器电路连接到电动机电流反馈信号和最大电流信号，其提供控制系统的电流限制。 来自PI控制器电路的输出信号是斜坡阶跃信号，用于调整斜坡函数发生器的斜坡信号，以提供电机控制系统的最佳性能，并为电机实现更好的启动时间。

    Multi-stage switching power supply
    6.
    发明授权
    Multi-stage switching power supply 有权
    多级开关电源

    公开(公告)号：US08125806B2

    公开(公告)日：2012-02-28

    申请号：US12359717

    申请日：2009-01-26

    申请人： Kirk Nangreaves ,  Charles-Lizhi Zhu ,  Richard Joseph Hampo

    发明人： Kirk Nangreaves ,  Charles-Lizhi Zhu ,  Richard Joseph Hampo

    IPC分类号： H02M3/24

    CPC分类号： H02M7/48 ,  H02M1/44 ,  H02M2001/007 ,  Y10S323/906

    摘要： A multi-stage power supply uses a boost stage and an inverter stage to boost the voltage value of a DC power supply to a desired level, and then convert the power into an AC form. The multi-stage power supply additionally has a controller which can simultaneously control the boost stage and the inverter stage using counter-synchronous signals.

    摘要翻译： 多级电源使用升压级和逆变器级将直流电源的电压值提高到期望水平，然后将电力转换成AC形式。 多级电源还具有可以使用反相同步信号同时控制升压级和逆变器级的控制器。

    Induction motor control method
    7.
    发明授权
    Induction motor control method 失效
    感应电动机控制方式

    公开(公告)号：US5754026A

    公开(公告)日：1998-05-19

    申请号：US825986

    申请日：1997-04-04

    申请人： Richard Joseph Hampo ,  Md Abul Masrur ,  John Michael Miller

    发明人： Richard Joseph Hampo ,  Md Abul Masrur ,  John Michael Miller

    IPC分类号： H02P21/08 ,  H02P21/14 ,  H02B5/34

    CPC分类号： H02P23/0004

    摘要： The present invention provides a method for controlling an induction motor. The method comprises determining an input impedance of the motor at an operating point; determining an input electrical power to the motor at the operating point; and estimating a slip or shaft speed of the motor at the operating point from the input impedance and input electrical power.

    摘要翻译： 本发明提供一种用于控制感应电动机的方法。 该方法包括在工作点确定电动机的输入阻抗; 确定在所述工作点处对所述电动机的输入电力; 以及从输入阻抗和输入电力估计工作点处的电动机的滑差或轴速度。

    Method of position sensing utilizing giant magneto resistance elements and solid state switch array
    8.
    发明授权
    Method of position sensing utilizing giant magneto resistance elements and solid state switch array 失效
    利用巨磁阻元件和固态开关阵列的位置检测方法

    公开(公告)号：US5929631A

    公开(公告)日：1999-07-27

    申请号：US887061

    申请日：1997-07-02

    申请人： David Lee Striker ,  Richard Joseph Hampo

    发明人： David Lee Striker ,  Richard Joseph Hampo

    IPC分类号： G01D5/14 ,  G01D5/16 ,  G01B7/30 ,  G01B7/14 ,  G01R33/09

    CPC分类号： G01D5/145

    摘要： A sensing method continuously scans an array of sensing elements and determines positions by converting array peak amplitude information to a time based function. An array of magneto resistive elements responds to a relatively moving magnetic field. The process of scanning the magneto resistive elements is independent of the relatively moving magnetic field. Instead of using only one voltage source to power both the driving logic circuitry and the sensing element array, a separate voltage source for powering the sensing element array is used in conjunction with the solid switch array, thus excluding unwanted noise that originates in the driving logic circuitry.

    摘要翻译： 感测方法连续扫描感测元件阵列，并通过将阵列峰值振幅信息转换为基于时间的函数来确定位置。 磁阻元件的阵列响应于相对移动的磁场。 扫描磁阻元件的过程与相对移动的磁场无关。 代替仅使用一个电压源来为驱动逻辑电路和感测元件阵列供电，用于为感测元件阵列供电的单独的电压源与固体开关阵列结合使用，从而排除源自驱动逻辑的不需要的噪声 电路。

    Fluid level sensing system
    9.
    发明授权
    Fluid level sensing system 失效
    液位传感系统

    公开(公告)号：US5747689A

    公开(公告)日：1998-05-05

    申请号：US762083

    申请日：1996-12-09

    申请人： Richard Joseph Hampo ,  Paul Theodore Momcilovich ,  Ross Maxwell Stuntz

    发明人： Richard Joseph Hampo ,  Paul Theodore Momcilovich ,  Ross Maxwell Stuntz

    IPC分类号： G01F23/26 ,  G01F1/56

    CPC分类号： G01F23/266 ,  G01F23/265 ,  G01F23/268

    摘要： In one embodiment of the present invention, a method for measuring fluid level use a sensor comprising a first plate having continuous electrically conductive material and a second plate having electrically conductive material disposed in segments, the electrically conductive material of the first plate in opposition to the electrically conductive material of the second plate. The method comprises immersing the sensor in the fluid with at least one segment completely immersed in the fluid and at least one said segment completely out of the fluid. The method also includes sequentially energizing the segments. Further, the method includes detecting times of voltage transitions of a first signal at the first plate, relative to the sequential energizing of the segments, as an indication of fluid level.

    摘要翻译： 在本发明的一个实施例中，用于测量流体液位的方法使用传感器，该传感器包括具有连续导电材料的第一板和具有设置在段中的导电材料的第二板，第一板的导电材料与 第二板的导电材料。 该方法包括将传感器浸入流体中，其中至少一个区段完全浸没在流体中，并且至少一个所述区段完全离开流体。 该方法还包括顺序地激励段。 此外，该方法包括相对于段的顺序通电来检测第一板处的第一信号的电压转换时间作为液位的指示。