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    Method and device for estimating variations of the position of the rotor of an electric motor
    1.
    发明授权
    Method and device for estimating variations of the position of the rotor of an electric motor 有权
    用于估计电动机的转子的位置的变化的方法和装置

    公开(公告)号：US07714571B2

    公开(公告)日：2010-05-11

    申请号：US11689736

    申请日：2007-03-22

    申请人： Francesco Pirozzi ,  Maurizio Di Meglio ,  Stefano Baratto

    发明人： Francesco Pirozzi ,  Maurizio Di Meglio ,  Stefano Baratto

    IPC分类号： G01B7/30 ,  G01P3/42 ,  G01F15/06

    CPC分类号： G01D5/24404 ,  H02P25/03

    摘要： A method estimates variations of position of the rotor of a motor having a plurality of uniformly spaced sensors that generate a position pulse at every rotation by a pre-established angle of the rotor. The method may include generating a first clock signal at a first frequency, generating a second clock signal at a second frequency multiple than the first frequency by a first factor, in each interval between two consecutive position pulses, counting the number of pulses of the first clock signal comprised in the interval, counting the number of pulses of the second clock signal comprised in the interval. The method may also include that each time the number of counted pulses of the second clock reaches the number of pulses of the first clock counted in an interval that precedes the currently considered interval, signaling that the position of the rotor has varied of an angle equal to the ratio between the pre-established angle and the factor.

    摘要翻译： 一种方法估计具有多个均匀间隔的传感器的电动机的转子位置的变化，该传感器在每个旋转处产生转子预先设定的角度的位置脉冲。 该方法可以包括以第一频率产生第一时钟信号，在两个连续的位置脉冲之间的每个间隔中，以比第一频率多一倍的第二频率产生第二频率的第二时钟信号，计数第一 包括在间隔中的时钟信号，对包含在间隔中的第二时钟信号的脉冲数进行计数。 该方法还可以包括：每当第二时钟的计数脉冲的数量达到在当前考虑的间隔之前的间隔中计数的第一时钟的脉冲数时，表明转子的位置已经改变了等于 到预先确定的角度和因子之间的比率。

    METHOD OF ESTIMATING THE STATE OF A SYSTEM AND RELATIVE DEVICE FOR ESTIMATING POSITION AND SPEED OF THE ROTOR OF A BRUSHLESS MOTOR
    2.
    发明申请
    METHOD OF ESTIMATING THE STATE OF A SYSTEM AND RELATIVE DEVICE FOR ESTIMATING POSITION AND SPEED OF THE ROTOR OF A BRUSHLESS MOTOR 有权
    估计系统状态的方法和估计无刷电机转子位置和速度的相关装置

    公开(公告)号：US20090033259A1

    公开(公告)日：2009-02-05

    申请号：US11833053

    申请日：2007-08-02

    申请人： Nicola Cesario ,  Stefano Baratto ,  Maurizio Di Meglio

    发明人： Nicola Cesario ,  Stefano Baratto ,  Maurizio Di Meglio

    IPC分类号： H02P6/18

    CPC分类号： G05B13/04 ,  H02P21/13 ,  H02P21/18 ,  H02P21/24

    摘要： A method for estimating the state of a system, as well as an extended Kalman filter (EKF), allows nonlinear mathematical models to be used for describing the system. Accurate precision is provided since the method is based on an EKF technique while using a filter that implements a first degree Stirling approximation formula. The method may be used for estimating position and speed of a brushless motor, and may be implemented in a relative device. Such a device may be introduced in a control loop of a brushless motor of a power steering system for a vehicle to provide a countering torque on the steering wheel based on speed of the vehicle and a steering angle of the vehicle.

    摘要翻译： 用于估计系统状态的方法以及扩展卡尔曼滤波器（EKF），允许非线性数学模型用于描述系统。 提供了精确的精度，因为该方法基于EKF技术，同时使用实现第一度斯特林近似公式的滤波器。 该方法可以用于估计无刷电动机的位置和速度，并且可以在相关设备中实现。 这种装置可以被引入到用于车辆的动力转向系统的无刷电动机的控制回路中，以基于车辆的速度和车辆的转向角度在方向盘上提供对抗扭矩。

    METHOD AND DEVICE FOR ESTIMATING VARIATIONS OF THE POSITION OF THE ROTOR OF AN ELECTRIC MOTOR
    3.
    发明申请
    METHOD AND DEVICE FOR ESTIMATING VARIATIONS OF THE POSITION OF THE ROTOR OF AN ELECTRIC MOTOR 有权
    用于估计电动机转子位置变化的方法和装置

    公开(公告)号：US20070241741A1

    公开(公告)日：2007-10-18

    申请号：US11689736

    申请日：2007-03-22

    申请人： Francesco Pirozzi ,  Maurizio Di Meglio ,  Stefano Baratto

    发明人： Francesco Pirozzi ,  Maurizio Di Meglio ,  Stefano Baratto

    IPC分类号： G01P3/42

    CPC分类号： G01D5/24404 ,  H02P25/03

    摘要： A method estimates variations of position of the rotor of a motor having a plurality of uniformly spaced sensors that generate a position pulse at every rotation by a pre-established angle of the rotor. The method may include generating a first clock signal at a first frequency, generating a second clock signal at a second frequency multiple than the first frequency by a first factor, in each interval between two consecutive position pulses, counting the number of pulses of the first clock signal comprised in the interval, counting the number of pulses of the second clock signal comprised in the interval. The method may also include that each time the number of counted pulses of the second clock reaches the number of pulses of the first clock counted in an interval that precedes the currently considered interval, signaling that the position of the rotor has varied of an angle equal to the ratio between the pre-established angle and the factor.

    摘要翻译： 一种方法估计具有多个均匀间隔的传感器的电动机的转子位置的变化，该传感器在每个旋转处产生转子预先设定的角度的位置脉冲。 该方法可以包括以第一频率产生第一时钟信号，在两个连续的位置脉冲之间的每个间隔中，以比第一频率多一倍的第二频率产生第二频率的第二时钟信号，计数第一 包括在间隔中的时钟信号，对包含在间隔中的第二时钟信号的脉冲数进行计数。 该方法还可以包括：每当第二时钟的计数脉冲的数量达到在当前考虑的间隔之前的间隔中计数的第一时钟的脉冲数时，表明转子的位置已经改变了等于 到预先确定的角度和因子之间的比率。

    Method and device for determining the duty-cycles of PWM control signals of an inverter
    8.
    发明授权
    Method and device for determining the duty-cycles of PWM control signals of an inverter 有权
    用于确定逆变器PWM控制信号占空比的方法和装置

    公开(公告)号：US07791304B2

    公开(公告)日：2010-09-07

    申请号：US12014955

    申请日：2008-01-16

    申请人： Francesco Pirozzi ,  Maurizio Di Meglio ,  Stefano Baratto

    发明人： Francesco Pirozzi ,  Maurizio Di Meglio ,  Stefano Baratto

    IPC分类号： H02P27/04 ,  H02P27/08

    CPC分类号： H02M7/53873

    摘要： A method for determining duty-cycles of respective pulse width modulated (PWM), space vector modulated (SVM) control signals of an inverter, may include storing values of the duty-cycles as a function of a position of the multi-phase electric load in a look-up table. The method also may include determining a phasor angle representing applied sinusoidal voltages. The method also may include determining the duty-cycles as a function of the angle, and storing, in the look-up table, values of two pre-established waveforms relative to at least one duty-cycle as a function of the angle in at least two 60° degree angular sectors, by at least, identifying which of six 60° angular sectors the angle belongs, calculating a difference between the angle and an angular sector lower bound, and generating values as a function of the identified angular sector of the difference and the two pre-established waveforms stored in the look-up table.

    摘要翻译： 用于确定逆变器的各个脉冲宽度调制（PWM），空间矢量调制（SVM）控制信号的占空比的方法可以包括将占空比的值存储为多相电负载的位置的函数 在查表中。 该方法还可以包括确定表示施加的正弦电压的相量角。 该方法还可以包括确定作为角度的函数的占空比，并且在查找表中将两个预先建立的波形相对于至少一个占空比的值存储为作为角度的函数的函数 至少两个60°角度扇区，至少识别角度所属的六个60°角扇区中的哪一个，计算角度与角扇区下界之间的差异，以及生成作为所识别的角度扇区的函数的值 差异和存储在查找表中的两个预先建立的波形。

    METHOD AND DEVICE FOR DETERMINING THE DUTY-CYCLES OF PWM CONTROL SIGNALS OF AN INVERTER
    9.
    发明申请
    METHOD AND DEVICE FOR DETERMINING THE DUTY-CYCLES OF PWM CONTROL SIGNALS OF AN INVERTER 有权
    用于确定逆变器PWM控制信号的占空比的方法和装置

    公开(公告)号：US20080169780A1

    公开(公告)日：2008-07-17

    申请号：US12014955

    申请日：2008-01-16

    申请人： Francesco Pirozzi ,  Maurizio DI Meglio ,  Stefano Baratto

    发明人： Francesco Pirozzi ,  Maurizio DI Meglio ,  Stefano Baratto

    IPC分类号： G05B11/28

    CPC分类号： H02M7/53873

    摘要： A method for determining duty-cycles of respective pulse width modulated (PWM), space vector modulated (SVM) control signals of an inverter, may include storing values of the duty-cycles as a function of a position of the multi-phase electric load in a look-up table. The method also may include determining a phasor angle representing applied sinusoidal voltages. The method also may include determining the duty-cycles as a function of the angle, and storing, in the look-up table, values of two pre-established waveforms relative to at least one duty-cycle as a function of the angle in at least two 60° degree angular sectors, by at least, identifying which of six 60° angular sectors the angle belongs, calculating a difference between the angle and an angular sector lower bound, and generating values as a function of the identified angular sector of the difference and the two pre-established waveforms stored in the look-up table.

    摘要翻译： 用于确定逆变器的各个脉冲宽度调制（PWM），空间矢量调制（SVM）控制信号的占空比的方法可以包括将占空比的值存储为多相电负载的位置的函数 在查表中。 该方法还可以包括确定表示施加的正弦电压的相量角。 该方法还可以包括确定作为角度的函数的占空比，并且在查找表中将两个预先建立的波形相对于至少一个占空比的值存储为作为角度的函数的函数 至少两个60°角度扇区，至少识别角度所属的六个60°角扇区中的哪一个，计算角度与角扇区下界之间的差异，以及生成作为所识别的角度扇区的函数的值 差异和存储在查找表中的两个预先建立的波形。