Active motor damping to mitigate electric vehicle driveline oscillations
    1.
    发明授权
    Active motor damping to mitigate electric vehicle driveline oscillations 有权
    主动电机阻尼减轻电动汽车传动系振荡

    公开(公告)号:US07024290B2

    公开(公告)日:2006-04-04

    申请号:US10903326

    申请日:2004-07-30

    IPC分类号: G06F17/00 B60K6/04

    摘要: A system and method for actively damping driveline oscillations in a motor vehicle having a traction motor to drive a vehicle's drive wheels and an antilock brake system (ABS). A traction motor controller controls a torque output signal of the motor to effectively to dampen driveline oscillations during an ABS operation. A proportional, a proportional derivative, or a derivative controller may be used to generate the torque output signal based on at least one of motor speed, an average of the drive wheel speeds, a difference in the two speeds, a motor angular acceleration, an average wheel angular acceleration, and a difference in the angular accelerations. Motor speed signals and average drive wheel speed signals may be filtered to eliminate high frequency components of each speed signal. Additionally, amplitude of the torque output signal may be limited within a positive upper and a negative lower active motor damping limit.

    摘要翻译: 一种在具有牵引电动机以驱动车辆的驱动轮和防抱死制动系统(ABS)的机动车辆中主动地阻尼传动系振动的系统和方法。 牵引电动机控制器控制电动机的扭矩输出信号,以在ABS操作期间有效地抑制传动系振荡。 可以使用比例,比例导数或微分控制器来产生转矩输出信号,其基于电动机速度,驱动轮速度的平均值,两个速度的差异,电动机角加速度, 平均车轮角加速度和角加速度差。 可以对电机速度信号和平均驱动轮速度信号进行滤波,以消除每个速度信号的高频分量。 此外,扭矩输出信号的振幅可以限制在正的上限和下限的有效电动机阻尼极限内。

    ACTIVE MOTOR DAMPING TO MITIGATE ELECTRIC VEHICLE DRIVELINE OSCILLATIONS
    2.
    发明申请
    ACTIVE MOTOR DAMPING TO MITIGATE ELECTRIC VEHICLE DRIVELINE OSCILLATIONS 有权
    主动电机阻尼减轻电动车辆驱动振荡

    公开(公告)号:US20060025905A1

    公开(公告)日:2006-02-02

    申请号:US10903326

    申请日:2004-07-30

    IPC分类号: G06F17/00

    摘要: A system and method for actively damping driveline oscillations in a motor vehicle having a traction motor to drive a vehicle's drive wheels and an antilock brake system (ABS). A traction motor controller controls a torque output signal of the motor to effectively to dampen driveline oscillations during an ABS operation. A proportional, a proportional derivative, or a derivative controller may be used to generate the torque output signal based on at least one of motor speed, an average of the drive wheel speeds, a difference in the two speeds, a motor angular acceleration, an average wheel angular acceleration, and a difference in the angular accelerations. Motor speed signals and average drive wheel speed signals may be filtered to eliminate high frequency components of each speed signal. Additionally, amplitude of the torque output signal may be limited within a positive upper and a negative lower active motor damping limit.

    摘要翻译: 一种在具有牵引电动机以驱动车辆的驱动轮和防抱死制动系统(ABS)的机动车辆中主动地阻尼传动系振动的系统和方法。 牵引电动机控制器控制电动机的扭矩输出信号,以在ABS操作期间有效地抑制传动系振荡。 可以使用比例,比例导数或微分控制器来产生转矩输出信号,其基于电动机速度,驱动轮速度的平均值,两个速度的差异,电动机角加速度, 平均车轮角加速度和角加速度差。 可以对电机速度信号和平均驱动轮速度信号进行滤波,以消除每个速度信号的高频分量。 此外,扭矩输出信号的振幅可以限制在正的上限和下限的有效电动机阻尼极限内。

    Motor starter and speed controller system
    3.
    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

    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。

    Portable briefcase office
    4.
    发明授权
    Portable briefcase office 失效
    便携式公文包办公室

    公开(公告)号:US08687362B2

    公开(公告)日:2014-04-01

    申请号:US13461782

    申请日:2012-05-02

    申请人: Yifan Zhao

    发明人: Yifan Zhao

    IPC分类号: G06F1/16

    CPC分类号: G06F1/1628

    摘要: A portable briefcase office comprises of a computer unit, a storage unit, and a supplies and devices unit. It integrates a computer, printer, projector, storage space, battery, and other office supplies in one easily transported briefcase. It is not a case for devices, but a compact apparatus that incorporates these devices as it would appear in an entire office.

    摘要翻译: 便携式公文包办公室包括计算机单元,存储单元以及供应和设备单元。 它将计算机,打印机,投影机,存储空间,电池和其他办公用品集成在一个易于运输的公文包中。 这不是设备的一种情况,而是整合这些设备的紧凑型设备,因为它会出现在整个办公室。

    Method and apparatus for high performance permanent magnet motor speed control with limited position information
    5.
    发明授权
    Method and apparatus for high performance permanent magnet motor speed control with limited position information 失效
    用于具有有限位置信息的高性能永磁电机速度控制的方法和装置

    公开(公告)号:US06700342B2

    公开(公告)日:2004-03-02

    申请号:US10208251

    申请日:2002-07-29

    IPC分类号: H02P700

    CPC分类号: H02P6/08 H02P23/20

    摘要: A control system for a permanent magnet motor having low-resolution speed measurement is taught. The control system is comprised of a speed regulator, voltage regulator and current regulator. The speed regulator uses a speed command and a measured speed for calculating a desired motor voltage; the voltage regulator uses a voltage command and an applied motor voltage for calculating a motor current command; and the current regulator uses a current command and a motor phase current for calculating a desired motor voltage for use by said voltage regulator; thereby providing a low resolution speed measurement to be used in a high performance application.

    摘要翻译: 教导了具有低分辨率速度测量的永磁电动机的控制系统。 控制系统由速度调节器,稳压器和电流调节器组成。 速度调节器使用速度指令和测量速度来计算所需的电机电压; 电压调节器使用电压指令和施加的电动机电压来计算电动机电流指令; 并且所述电流调节器使用电流指令和电动机相电流来计算由所述电压调节器使用的期望的电动机电压; 从而提供在高性能应用中使用的低分辨率速度测量。

    Five level high power motor drive converter and control system
    6.
    发明授权
    Five level high power motor drive converter and control system 失效
    五级大功率电机驱动转换器及控制系统

    公开(公告)号:US6058031A

    公开(公告)日:2000-05-02

    申请号:US108044

    申请日:1998-06-30

    IPC分类号: H02M7/48 H02M7/487 H02M7/217

    摘要: A high power motor drive converter includes: a five level hybrid NPC output power conversion stage including three NPC phase bridges having switches and coupled in a wye configuration through a converter neutral point, each NPC phase bridge receiving power on a respective direct current bus; three isolated split series-connected DC capacitor banks each coupled in parallel to a respective one of the three NPC phase bridges; and a controller for selecting switch positions with active control of neutral voltages. The controller is adapted to select switch positions using feedforward sine-triangle modulation with third harmonic injection, zero sequence injection, and/or discontinuous modulation injection.

    摘要翻译: 大功率电动机驱动转换器包括:五级混合NPC输出功率转换级,包括具有开关的三个NPC相桥,并且通过转换器中性点以叶状配置耦合,每个NPC相桥在相应的直流母线上接收功率; 三个隔离的串联连接的直流电容器组,其分别与三个NPC相桥中的相应一个并联耦合; 以及用于选择具有中性电压的主动控制的开关位置的控制器。 控制器适于使用具有三次谐波注入,零序注入和/或不连续调制注入的前馈正弦三角调制来选择开关位置。

    Portable Briefcase Office
    7.
    发明申请
    Portable Briefcase Office 失效
    便携式公文包办公室

    公开(公告)号:US20130294021A1

    公开(公告)日:2013-11-07

    申请号:US13461782

    申请日:2012-05-02

    申请人: Yifan Zhao

    发明人: Yifan Zhao

    IPC分类号: G06F1/16

    CPC分类号: G06F1/1628

    摘要: A portable briefcase office comprises of a computer unit, a storage unit, and a supplies and devices unit. It integrates a computer, printer, projector, storage space, battery, and other office supplies in one easily transported briefcase. It is not a case for devices, but a compact apparatus that incorporates these devices as it would appear in an entire office.

    摘要翻译: 便携式公文包办公室包括计算机单元,存储单元以及供应和设备单元。 它将计算机,打印机,投影机,存储空间,电池和其他办公用品集成在一个易于运输的公文包中。 这不是设备的一种情况,而是整合这些设备的紧凑型设备,因为它会出现在整个办公室。

    Method and apparatus for improving speed measurement quality in multi-pole machines
    8.
    发明授权
    Method and apparatus for improving speed measurement quality in multi-pole machines 有权
    提高多极机速度测量质量的方法和装置

    公开(公告)号:US07190145B2

    公开(公告)日:2007-03-13

    申请号:US10334198

    申请日:2002-12-30

    IPC分类号: G01P3/481 G01P3/66 H02P6/08

    CPC分类号: H02P6/17 H02P6/15

    摘要: A method and apparatus for improving speed measurement quality in systems having multi-pole machines is taught. The method compensates for pole misalignment by computing speed based upon moving average techniques. In one embodiment, a moving average speed averaged over a complete interval of rotation is determined, based upon measurements of one or more magnetic pole position sensors for magnetic pole location. In another embodiment, a time interval between two poles is averaged over one or more rotational periods, and the average time interval is used to determine the moving average speed. Computation of the moving average speed reduces errors in speed measurements due to pole misalignment and may provide for smaller control adjustment times for controlling motor speed variability. In one embodiment, the speed measurement system includes a multi-pole rotor, and a controller having a capture timer and a buffer.

    摘要翻译: 教导了一种用于在具有多极机器的系统中提高速度测量质量的方法和装置。 该方法通过基于移动平均技术的计算速度来补偿极点错位。 在一个实施例中,基于用于磁极位置的一个或多个磁极位置传感器的测量来确定在完整旋转间隔上平均的移动平均速度。 在另一个实施例中,两个极点之间的时间间隔在一个或多个旋转周期上被平均,并且平均时间间隔用于确定移动平均速度。 移动平均速度的计算减少了由于极点对准引起的速度测量误差,并且可以为控制电机速度变化提供较小的控制调节时间。 在一个实施例中,速度测量系统包括多极转子和具有捕获计时器和缓冲器的控制器。