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146 条记录 (耗时 0.019 秒)

    METHOD AND SYSTEM FOR CONTROLLING PERMANENT MAGNET AC MACHINES
    81.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING PERMANENT MAGNET AC MACHINES 有权
    用于控制永磁交流电机的方法和系统

    公开(公告)号：US20080224651A1

    公开(公告)日：2008-09-18

    申请号：US11685722

    申请日：2007-03-13

    申请人： Steven E. Schulz ,  Silva Hiti ,  Khwaja M. Rahman

    发明人： Steven E. Schulz ,  Silva Hiti ,  Khwaja M. Rahman

    IPC分类号： H02P27/00

    CPC分类号： H02P21/02 ,  H02P21/0089 ,  H02P21/05

    摘要： Methods and systems are provided for controlling permanent magnet machines under varying loads. The method comprises generating a d-axis voltage command and a q-axis voltage command, producing a modified d-axis current command based on the q-axis voltage command and a d-axis current command, converting the modified d-axis current command to a modified d-axis voltage command, and transmitting the modified d-axis voltage command and the q-axis voltage command to the PM machine. The d-axis voltage command is based on a d-axis current command.

    摘要翻译： 提供了用于在变化的负载下控制永磁体机器的方法和系统。 该方法包括生成d轴电压指令和q轴电压指令，基于q轴电压指令和d轴电流指令产生修正的d轴电流指令，将修正的d轴电流指令 到修改的d轴电压指令，并将修改的d轴电压命令和q轴电压命令发送到PM机。 d轴电压指令基于d轴电流指令。

    SYSTEM AND METHOD FOR CONTROLLING ELECTRIC DRIVE SYSTEMS
    82.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING ELECTRIC DRIVE SYSTEMS 有权
    用于控制电力驱动系统的系统和方法

    公开(公告)号：US20080197796A1

    公开(公告)日：2008-08-21

    申请号：US11676539

    申请日：2007-02-20

    申请人： Bon-Ho Bae ,  Steven E. Schulz ,  Nitinkumar R. Patel

    发明人： Bon-Ho Bae ,  Steven E. Schulz ,  Nitinkumar R. Patel

    IPC分类号： H02P7/00

    CPC分类号： B60L11/1861 ,  B60L15/025 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7258

    摘要： Methods, apparatus, and systems are provided for regulating the operation of a drive system within a battery voltage and power range. The apparatus includes a PI regulator producing a signal for regulating a torque output of the drive system based on a DC voltage source limit and/or power limit, a converter normalizing the signal from the PI regulator to produce a new torque limit, and a switch selecting either the new torque limit or an available torque limit of the drive system. The PI regulator includes an integrator having an initial value based on the torque output of the drive system and a copper loss term.

    摘要翻译： 提供了用于调节电池电压和功率范围内的驱动系统的操作的方法，装置和系统。 该装置包括PI调节器，其产生用于基于直流电压源极限和/或功率限制来调节驱动系统的转矩输出的信号，转换器对来自PI调节器的信号进行归一化以产生新的转矩极限，以及开关 选择新的转矩限制或驱动系统的可用转矩极限。 PI调节器包括具有基于驱动系统的转矩输出的初始值和铜损失项的积分器。

    Loss minimized PWM for voltage source inverters taking into account inverter non-linearity
    83.
    发明授权
    Loss minimized PWM for voltage source inverters taking into account inverter non-linearity 有权
    考虑到变频器非线性，电压源逆变器的损耗最小化为PWM

    公开(公告)号：US07391181B2

    公开(公告)日：2008-06-24

    申请号：US11376910

    申请日：2006-03-16

    申请人： Brian Welchko ,  Steven E. Schulz ,  Silva Hiti

    发明人： Brian Welchko ,  Steven E. Schulz ,  Silva Hiti

    IPC分类号： H02P23/00

    CPC分类号： H02P27/04 ,  H02M2001/0048 ,  Y02B70/1491

    摘要： A dynamic pulse width modulation (PWM) selection device automatically switches between discontinuous PWM (DPWM) control methods. The PWM selection device comprises a PWM control module. The PWM control module determines a desired pulse width of a switching control signal according to a desired output signal. The PWM control module controls an actual pulse width of the switching control signal according to the desired pulse width and a first PWM control method. A selection module determines whether the desired pulse width exceeds a pulse width threshold. The selection module selects a second PWM control method when the desired pulse width exceeds the pulse width threshold.

    摘要翻译： 动态脉宽调制（PWM）选择装置自动切换不连续PWM（DPWM）控制方式。 PWM选择装置包括PWM控制模块。 PWM控制模块根据期望的输出信号确定切换控制信号的期望脉冲宽度。 PWM控制模块根据期望的脉冲宽度和第一PWM控制方法控制开关控制信号的实际脉冲宽度。 选择模块确定期望的脉冲宽度是否超​​过脉冲宽度阈值。 当所需脉冲宽度超过脉冲宽度阈值时，选择模块选择第二个PWM控制方法。

    Vehicle motor temperature determination
    85.
    发明授权
    Vehicle motor temperature determination 有权
    汽车电机温度测定

    公开(公告)号：US08762116B2

    公开(公告)日：2014-06-24

    申请号：US13090990

    申请日：2011-04-20

    申请人： Chia-Chou Yeh ,  Steven E. Schulz ,  Daniel J. Berry

    发明人： Chia-Chou Yeh ,  Steven E. Schulz ,  Daniel J. Berry

    IPC分类号： G06G7/48 ,  G06F17/50

    CPC分类号： G06F17/5018 ,  F02D41/065 ,  F02D2200/021 ,  F02D2200/022 ,  F02D2200/0414

    摘要： Methods and systems are provided for determining a temperature of a motor of a vehicle having an ignition when the ignition is turned on following a period of time in which the ignition had been turned off. An amount of time for which the vehicle had been turned off is determined. A motor temperature model is run using a time step to simulate the amount of time for which the vehicle had been turned off to determine an initial value of the temperature of the motor.

    摘要翻译： 提供了方法和系统，用于在点火已经关闭的时间段之后，当点火开启时确定具有点火的车辆的电动机的温度。 确定车辆关闭的时间量。 使用时间步长运行电动机温度模型来模拟车辆已经关闭的时间量，以确定电动机的温度的初始值。

    Method and system for sensorless control of an electric motor
    88.
    发明授权
    Method and system for sensorless control of an electric motor 有权
    电动机无传感器控制的方法和系统

    公开(公告)号：US08340848B2

    公开(公告)日：2012-12-25

    申请号：US11947501

    申请日：2007-11-29

    申请人： Yo Chan Son ,  Nitinkumar R. Patel ,  Steven E. Schulz

    发明人： Yo Chan Son ,  Nitinkumar R. Patel ,  Steven E. Schulz

    IPC分类号： B60L9/00

    CPC分类号： H02P21/13 ,  H02P21/141 ,  H02P21/24

    摘要： Methods and systems for controlling an electric motor are provided. A signal comprising at least first and second cycles is provided to the electric motor. A first flux value for the electric motor associated with the first cycle of the signal is calculated. A second flux value for the electric motor associated with the second cycle of the signal is calculated based on the first flux value.

    摘要翻译： 提供了用于控制电动机的方法和系统。 包括至少第一和第二循环的信号被提供给电动机。 计算与信号的第一周期相关的电动机的第一通量值。 基于第一通量值计算与信号的第二周期相关联的电动机的第二通量值。

    MOTOR TEMPERATURE ESTIMATION BASED ON THERMAL MODEL
    90.
    发明申请
    MOTOR TEMPERATURE ESTIMATION BASED ON THERMAL MODEL 有权
    基于热模型的电机温度估计

    公开(公告)号：US20120226483A1

    公开(公告)日：2012-09-06

    申请号：US13039347

    申请日：2011-03-03

    申请人： Daniel J. Berry ,  Pankaj Mithal ,  Paul F. Turnbull ,  Peter J. Savagian ,  Chia-Chou Yeh ,  Steven E. Schulz

    发明人： Daniel J. Berry ,  Pankaj Mithal ,  Paul F. Turnbull ,  Peter J. Savagian ,  Chia-Chou Yeh ,  Steven E. Schulz

    IPC分类号： G06F17/11 ,  G06G7/48

    CPC分类号： B60L3/0061 ,  B60L2220/12 ,  B60L2220/14 ,  B60L2220/18 ,  B60L2240/36 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/425 ,  B60L2260/44 ,  G01K7/42 ,  G01K2205/00 ,  Y02T10/642

    摘要： A vehicle includes a power source, a motor, and a computing device. The power source provides electrical energy to the motor, and the motor generates rotational motion from the electrical energy received. The computing device is configured to estimate a temperature of the motor in real time based at least in part on a thermal model of the motor. The thermal model includes a plurality of nodes and at least one thermal resistance. Each node represents a region of the motor and each thermal resistance represents a heat transfer path between at least two of the nodes. A method includes solving one or more energy balance equations to determine a temperature change at each node and estimating the temperature of the motor in real time based at least in part on the temperature change at each node and at least one of the thermal resistances in the thermal model.

    摘要翻译： 车辆包括电源，电动机和计算装置。 电源向电动机提供电能，并且电动机从接收的电能产生旋转运动。 计算设备被配置为至少部分地基于电动机的热模型实时地估计电动机的温度。 热模型包括多个节点和至少一个热阻。 每个节点表示电动机的区域，每个热阻表示至少两个节点之间的热传递路径。 一种方法包括解决一个或多个能量平衡方程以确定每个节点处的温度变化并且至少部分地基于每个节点处的温度变化以及至少一个热电阻来实时估计电动机的温度 热模型。