Electric Power Steering System
    1.
    发明申请
    Electric Power Steering System 审中-公开
    电动助力转向系统

    公开(公告)号:US20090069980A1

    公开(公告)日:2009-03-12

    申请号:US11918242

    申请日:2006-04-11

    申请人: Masahiko Sakamaki

    发明人: Masahiko Sakamaki

    IPC分类号: B62D6/00

    摘要: The electric power steering system detects a steering torque Ts applied to a steering member (not shown), determines a q-axis current i*q and a d-axis current i*d of a motor in dq coordinates, on the basis of the detected steering torque Ts, determines a q-axis voltage V*q and a d-axis voltage V*d, on the basis of a power supply voltage Ed, such that the determined q-axis current i*q and d-axis current i*d flow through the motor, converts the q-axis voltage V*q and the d-axis voltage V*d into three-phase voltages V*u, V*v, and V*w, and applies the three-phase voltages V*u, V*v, and V*w to drive the motor, thereby assisting steering. The electric power steering system includes a limiter unit which limits the q-axis voltage V*q to be smaller than √{square root over ((3n2Ed2/8-Vd2))} (n=1, 2, or 2/√{square root over (3)}).

    摘要翻译: 电动助力转向系统检测施加到转向构件(未示出)的转向转矩Ts,基于dq坐标确定电动机的q轴电流i * q和d轴电流i * d 检测转向转矩Ts,基于电源电压Ed确定q轴电压V * q和d轴电压V * d,使得确定的q轴电流i * q和d轴电流 i * d流过电机,将q轴电压V * q和d轴电压V * d转换为三相电压V * u,V * v和V * w,并将三相 电压V * u,V * v和V * w来驱动电机,从而辅助转向。 电动助力转向系统包括限制器单元,其限制q轴电压V * q小于√{平方根超过((3n2Ed2 / 8-Vd2))}(n = 1,2或2 /√{ (3)})。

    Motor driving apparatus
    2.
    发明授权
    Motor driving apparatus 有权
    电机驱动装置

    公开(公告)号:US07330011B2

    公开(公告)日:2008-02-12

    申请号:US10891141

    申请日:2004-07-15

    IPC分类号: H02P23/00

    摘要: A motor driving apparatus includes an inverter circuit for converting an output of a rectifier circuit connected to a single-phase AC power supply into a driving voltage, and outputting the driving voltage to a brushless motor, and an inverter control unit for controlling the amplitude value of the voltage outputted from the inverter to the brushless motor so as to minimize a difference between a command rpm indicated by an external command signal and an actual rpm derived from an estimated phase of the rotor, wherein the command rpm is set to an rpm outside a predetermined range of rpms.

    摘要翻译: 一种电动机驱动装置,具有将与单相交流电源连接的整流电路的输出变换成驱动电压并将驱动电压输出到无刷电动机的逆变电路,以及控制振幅值的逆变器控制部 将从逆变器输出的电压输出到无刷电动机,以使得由外部命令信号表示的指令rpm与从转子的估计相位导出的实际rpm之间的差最小化,其中,命令rpm设定为外部转数 预定范围的rpms。

    Motor driving apparatus
    3.
    发明授权
    Motor driving apparatus 失效
    电机驱动装置

    公开(公告)号:US07292004B2

    公开(公告)日:2007-11-06

    申请号:US10822798

    申请日:2004-04-13

    IPC分类号: H02P21/00

    摘要: A motor driving apparatus for driving a motor includes a single-phase rectifier circuit having an input connected to a single-phase AC power supply, an inverter circuit that is connected to the single-phase rectifier circuit and applies a current and a voltage to the motor, and an inverter control unit for controlling the inverter circuit. The inverter control unit controls the current applied to the motor, i.e., the output of the inverter circuit, so that the inverter input voltage becomes equal to the absolute value of the voltage of the single-phase AC power supply.

    摘要翻译: 用于驱动电动机的电动机驱动装置包括具有连接到单相交流电源的输入的单相整流电路,连接到单相整流电路的逆变器电路,并将电流和电压施加到 电动机和用于控制逆变器电路的逆变器控制单元。 逆变器控制单元控制施加到电动机的电流,即逆变器电路的输出,使得逆变器输入电压等于单相交流电源的电压的绝对值。

    Electric differential traction-control drive system
    4.
    发明授权
    Electric differential traction-control drive system 有权
    电动差动牵引力控制驱动系统

    公开(公告)号:US06914410B2

    公开(公告)日:2005-07-05

    申请号:US10607953

    申请日:2003-06-27

    IPC分类号: H02P27/04 H02P5/34

    CPC分类号: H02P27/048

    摘要: In an electrical drive system, an electric differential comprises a first rotor for driving a first drive wheel, a second rotor for driving a second drive wheel, the first and second rotors capable of independent relative rotation, and a common stator for driving the first and second rotors. The common stator may comprise a single winding for driving both rotors or first and second windings for driving the first and second rotors respectively. A processor and a sensor system monitor parameters such as torque, speed, magnetic flux, etc. to detect the loss of traction by one or both drive wheels and adjust the operation of the motor until traction is regained.

    摘要翻译: 在电驱动系统中,电动差速器包括用于驱动第一驱动轮的第一转子,用于驱动第二驱动轮的第二转子,能够独立相对旋转的第一和第二转子,以及用于驱动第一和 第二转 公共定子可以包括用于驱动转子的单个绕组或用于分别驱动第一和第二转子的第一和第二绕组。 处理器和传感器系统监测扭矩,速度,磁通量等参数,以检测一个或两个驱动轮的牵引力的损失,并调整电机的运行,直到牵引力恢复。

    Electric differential traction-control drive system
    5.
    发明申请
    Electric differential traction-control drive system 有权
    电动差动牵引力控制驱动系统

    公开(公告)号:US20040263112A1

    公开(公告)日:2004-12-30

    申请号:US10607953

    申请日:2003-06-27

    IPC分类号: H02P007/42

    CPC分类号: H02P27/048

    摘要: In an electrical drive system, an electric differential comprises a first rotor for driving a first drive wheel, a second rotor for driving a second drive wheel, the first and second rotors capable of independent relative rotation, and a common stator for driving the first and second rotors. The common stator may comprise a single winding for driving both rotors or first and second windings for driving the first and second rotors respectively. A processor and a sensor system monitor parameters such as torque, speed, magnetic flux, etc. to detect the loss of traction by one or both drive wheels and adjust the operation of the motor until traction is regained.

    摘要翻译: 在电驱动系统中,电动差速器包括用于驱动第一驱动轮的第一转子,用于驱动第二驱动轮的第二转子,能够独立相对旋转的第一和第二转子,以及用于驱动第一和 第二转 公共定子可以包括用于驱动转子的单个绕组或用于分别驱动第一和第二转子的第一和第二绕组。 处理器和传感器系统监测扭矩,速度,磁通量等参数,以检测一个或两个驱动轮的牵引力的损失,并调整电机的运行,直到牵引力恢复。

    Machine drive system and method
    6.
    发明授权
    Machine drive system and method 失效
    机器驱动系统及方法

    公开(公告)号:US5378952A

    公开(公告)日:1995-01-03

    申请号:US899784

    申请日:1992-06-17

    摘要: A drive system for washing machines, electric vehicles or the like has its winding switched to effect speed change and an asynchronous motor operated by a frequency converter where there are more than two grooves per pole and phase with respect to the motor and the number of grooves of the rotor exceeds the number of grooves of the stator whose sheet pack is welded along the back. The windings are formed as short-pitched chord half-hole windings.

    摘要翻译: 用于洗衣机,电动车辆等的驱动系统的绕组被切换以实现变速,并且由频率转换器操作的异步电动机,其中每个极点和相位相对于电动机有多于两个的槽和槽的数量 的转子超过定子的槽的数量,其片材组件沿着后部被焊接。 绕组形成为短音弦弦半孔绕组。

    Apparatus for controlling AC motor
    7.
    发明授权
    Apparatus for controlling AC motor 失效
    用于控制交流电机的装置

    公开(公告)号:US4451771A

    公开(公告)日:1984-05-29

    申请号:US458057

    申请日:1983-01-14

    摘要: Disclosed is a control apparatus for an AC motor which is driven by a power converter constituted by switching elements. A current control circuit turns on/off the switching elements in accordance with a current pattern signal in the form of an AC signal to thereby control the motor current. The current pattern signal is obtained by a current pattern calculating circuit based on a current command signal and a sinusoidal signal which determines the current phase. A current correction signal proportional to the deviation of the motor current from the current command signal is obtained by a current correction control circuit and added to the current command signal to be applied to the current pattern calculating circuit.

    摘要翻译: 公开了一种由电动转换器构成的功率变换器驱动的交流电动机的控制装置。 电流控制电路根据AC信号形式的电流模式信号来接通/断开开关元件,从而控制电动机电流。 电流模式信号由电流模式计算电路基于电流指令信号和确定当前相位的正弦信号获得。 通过电流校正控制电路获得与电动机电流与电流指令信号的偏差成比例的电流校正信号,并将其与加到当前模式计算电路的电流指令信号相加。

    Apparatus for regulating magnetic flux in an AC motor
    8.
    发明授权
    Apparatus for regulating magnetic flux in an AC motor 失效
    用于调节交流电机中的磁通量的装置

    公开(公告)号:US4011489A

    公开(公告)日:1977-03-08

    申请号:US525613

    申请日:1974-11-20

    摘要: A flux sensing coil is installed in each phase of the motor stator, and the resulting induced voltages represent the rate of change of air gap flux in that phase. The output voltage signals are integrated, rectified and summed to obtain an average motor flux signal which is in turn applied to vary the voltage to the motor in such a manner as to maintain a substantially constant motor flux level. In this way control errors due to motor parameter changes are eliminated and the flux margin normally required in motor design is reduced to achieve a more efficient utilization of the motor.

    摘要翻译: 磁通感测线圈安装在电动机定子的每个相中,并且所得到的感应电压表示该相位中气隙磁通的变化率。 输出电压信号被积分,整流和求和以获得平均电动机磁通信号,该平均电动机磁通信号又被施加以改变电动机的电压,以便保持基本上恒定的电动机通量水平。 以这种方式,消除了由于电动机参数变化引起的控制误差,并且减小了电动机设计中通常所需的磁通裕度,以实现电动机的更有效利用。

    Means for controlling the output condition of a synchronous reluctance motor
    9.
    发明授权
    Means for controlling the output condition of a synchronous reluctance motor 失效
    用于控制同步电动机输出条件的方法

    公开(公告)号:US3863120A

    公开(公告)日:1975-01-28

    申请号:US33728073

    申请日:1973-03-02

    发明人: RETTIG CHARLES E

    摘要: A means for controlling the output torque condition of a synchronous reluctance motor. The means comprises a motor control having a first signal means generating a torque command signal and a second signal means providing a rotor frequency signal. A stator winding energization means is coupled to the signal means for providing a stator current of a desired frequency and phase displacement to the motor. A power supply means is coupled to the stator winding energization means for regulating the magnitude of the stator current to a predetermined value responsive to the first signal means. The invention also obtains the speed control of self excited alternating current motors.

    摘要翻译: 用于控制同步磁阻电机的输出转矩状态的装置。 该装置包括具有产生转矩指令信号的第一信号装置和提供转子频率信号的第二信号装置的电动机控制。 定子绕组通电装置耦合到信号装置,用于向电动机提供期望的频率和相位位移的定子电流。 电源装置耦合到定子绕组通电装置,用于响应于第一信号装置将定子电流的大小调节到预定值。 本发明还获得了自激式交流电动机的速度控制。