公开(公告)号：US20130207579A1

公开(公告)日：2013-08-15

申请号：US13397463

申请日：2012-02-15

Applicant: MILUN PERISIC ,  YO CHAN SON ,  GABRIEL GALLEGOS-LOPEZ ,  SILVA HITI

Inventor： MILUN PERISIC ,  YO CHAN SON ,  GABRIEL GALLEGOS-LOPEZ ,  SILVA HITI

IPC: H02P21/12

CPC classification number: H02P21/18 ,  H02P21/24

Abstract: Methods, systems and apparatus are provided for estimating electrical angular speed of a permanent magnet machine based on two-phase stationary reference frame feedback stator current samples, and a dimensionless gain (K) that is computed based on a sampling time (T) and machine parameters.

Abstract translation: 提供了用于估计基于两相静止参考系反馈定子电流样本的永磁体机器电角速度的方法，系统和装置，以及基于采样时间（T）和机器计算的无量纲增益（K） 参数。

公开(公告)号：US08340848B2

公开(公告)日：2012-12-25

申请号：US11947501

申请日：2007-11-29

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

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

IPC: B60L9/00

CPC classification number: H02P21/13 ,  H02P21/141 ,  H02P21/24

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110106476A1

公开(公告)日：2011-05-05

申请号：US12612482

申请日：2009-11-04

Applicant: YO CHAN SON ,  NITINKUMAR R. PATEL ,  JONATHAN H. FAIR

Inventor： YO CHAN SON ,  NITINKUMAR R. PATEL ,  JONATHAN H. FAIR

IPC: G06F19/00 ,  G01K15/00

CPC classification number: G01K7/24 ,  G01K1/20

Abstract: A method for interpreting a temperature reading of a thermistor includes the steps of calculating a power dissipation of the thermistor via a processor and calculating a temperature error for the temperature reading via the processor using the power dissipation.

Abstract translation: 用于解释热敏电阻的温度读数的方法包括以下步骤：通过处理器计算热敏电阻的功率消耗，并且通过使用功率消耗计算经由处理器的温度读数的温度误差。

公开(公告)号：US20110095713A1

公开(公告)日：2011-04-28

申请号：US12606839

申请日：2009-10-27

Applicant: YO CHAN SON ,  JIHOON JANG ,  BRIAN A. WELCHKO ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ

Inventor： YO CHAN SON ,  JIHOON JANG ,  BRIAN A. WELCHKO ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ

IPC: H02P6/20 ,  B60W20/00

CPC classification number: H02P6/20

Abstract: Methods and systems for controlling an electric motor are provided. The motor includes a plurality of windings. Each winding is coupled to a respective set of first and second switches. The first switch of each set of switches is simultaneously activated. Current flow through the plurality of windings is measured while the first switch of each set of switches is activated. The electric motor is controlled according to a first motor control method if the measured current is below a predetermined threshold. The electric motor is controlled according to a second motor control method if the measured current is above the predetermined threshold.

Abstract translation: 提供了用于控制电动机的方法和系统。 马达包括多个绕组。 每个绕组耦合到相应的一组第一和第二开关。 每组开关的第一个开关同时被激活。 当每组开关的第一开关被激活时，测量通过多个绕组的电流。 如果测量电流低于预定阈值，则根据第一电动机控制方法来控制电动机。 如果测量的电流高于预定阈值，则根据第二电动机控制方法来控制电动机。

公开(公告)号：US20110084638A1

公开(公告)日：2011-04-14

申请号：US12577516

申请日：2009-10-12

Applicant: NITINKUMAR R. PATEL ,  YO CHAN SON

Inventor： NITINKUMAR R. PATEL ,  YO CHAN SON

IPC: H02P6/18 ,  H02P6/08

CPC classification number: H02P6/18 ,  B60K1/02 ,  B60L1/003 ,  B60L2200/26 ,  F04C14/08 ,  F04C18/00 ,  F04C2210/14 ,  F04C2270/0525 ,  G05B11/28 ,  H02P6/085 ,  H02P21/00 ,  H02P29/60 ,  Y02T10/643 ,  Y10T477/23 ,  Y10T477/653

Abstract: Methods, system and apparatus are provided for sensorless control of a vector controlled motor drive system that includes an electric motor used to drive an auxiliary oil pump.

Abstract translation: 提供了用于无矢量控制矢量控制电机驱动系统的方法，系统和装置，其包括用于驱动辅助油泵的电动机。

公开(公告)号：US20100231149A1

公开(公告)日：2010-09-16

申请号：US12786104

申请日：2010-05-24

Applicant: GABRIEL GALLEGOS-LOPEZ ,  YO CHAN SON ,  MILUN PERISIC ,  SILVA HITI

Inventor： GABRIEL GALLEGOS-LOPEZ ,  YO CHAN SON ,  MILUN PERISIC ,  SILVA HITI

IPC: H02P21/00

CPC classification number: B60L15/025 ,  B60L2200/26 ,  B60L2220/14 ,  H02P21/0089 ,  H02P21/06 ,  Y02T10/643

Abstract: Systems and methods are disclosed to provide torque linearity in the field-weakening region for an electric (e.g., IPM) machine. The systems and methods implement a field weakening and a torque linearity control loop for linearizing torque generated by an electric machine. First and second voltage commands are used at the field weakening loop to generate a first adjusting current command. The first adjusting current command is then provided to the torque linearity control loop, where it is multiplied by a gain to generate an output current command, which can then be limited to generate a second adjusting current command. The second adjusting current command can then be added to a current command to generate an adjusted current command. The first adjusting current command can also be added to another current command to generate another adjusted current command. The adjusted current commands and feedback currents are then used at a synchronous current regulator to generate new first and second voltage commands. As a result, torque linearity is maintained when the electric machine operates in the field weakening region.

Abstract translation: 公开了系统和方法以在电动（例如，IPM）机器的弱磁区域中提供扭矩线性度。 该系统和方法实现了减弱电磁场和扭矩线性控制回路，用于线性化电机产生的转矩。 在弱磁环路处使用第一和第二电压指令来产生第一调整电流指令。 然后将第一调整电流指令提供给转矩线性控制回路，在该转矩线性控制回路中乘以增益以产生输出电流指令，然后可以限制该指令以产生第二调整电流指令。 然后可以将第二调整电流命令添加到当前命令以产生经调整的电流命令。 第一个调整电流命令也可以添加到另一个当前命令，以生成另一个调整的电流命令。 然后在同步电流调节器上使用调整后的电流指令和反馈电流来产生新的第一和第二电压指令。 结果，当电机在弱磁区域中运行时，扭矩线性度得以保持。

公开(公告)号：US08378605B2

公开(公告)日：2013-02-19

申请号：US12652931

申请日：2010-01-06

Applicant: Wei D. Wang ,  Nitinkumar R. Patel ,  Yo Chan Son

Inventor： Wei D. Wang ,  Nitinkumar R. Patel ,  Yo Chan Son

IPC: H02P6/00

CPC classification number: F04B17/03 ,  H02P6/182 ,  H02P29/0241 ,  H02P2203/03

Abstract: A multiphase alternating current permanent magnet synchronous electric motor is coupled to an actuator. A sensorless electric motor drive control system controls operation of the electric motor. An initial phase angle and a rotational speed of a rotor of the electric motor are estimated. Operation of the sensorless electric motor drive control system and the electric motor are monitored using the estimated initial phase angle and the estimated rotational speed of the rotor of the electric motor. A fault in one of the sensorless electric motor drive control system and the electric motor is detected based upon the monitored operation.

Abstract translation: 多相交流永磁同步电动机与致动器连接。 无传感器电动机驱动控制系统控制电动机的运行。 估计电动机的转子的初始相位角和转速。 使用估计的初始相位角和电动机的转子的估计旋转速度监视无传感器电动机驱动控制系统和电动机的操作。 基于所监视的操作来检测无传感器电动机驱动控制系统和电动机之一的故障。

公开(公告)号：US08212505B2

公开(公告)日：2012-07-03

申请号：US12326259

申请日：2008-12-02

Applicant: James M. Nagashima ,  Steven E. Schulz ,  Yo Chan Son ,  Jonas Bereisa

Inventor： James M. Nagashima ,  Steven E. Schulz ,  Yo Chan Son ,  Jonas Bereisa

IPC: H02P6/10

CPC classification number: H02P21/06 ,  B60L11/14 ,  B60L15/025 ,  B60L2220/14 ,  B60L2270/145 ,  B60L2270/42 ,  B60Q5/008 ,  H02P6/10 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7258

Abstract: A method and system for operating an automotive electric motor having first and second components is provided. A desired frequency of vibration for the electric motor is selected. A current is caused to flow through at least one of the first and second components such that the second component moves relative to the first component. The current is modulated such that the motor vibrates at the desired frequency.

Abstract translation: 提供一种用于操作具有第一和第二部件的汽车电动机的方法和系统。 选择电动机的期望的振动频率。 引起电流流过第一和第二组分中的至少一个，使得第二组分相对于第一组分移动。 调节电流，使电机以所需的频率振动。

公开(公告)号：US08018187B2

公开(公告)日：2011-09-13

申请号：US12348684

申请日：2009-01-05

Applicant: Steven E. Schulz ,  Constantin C. Stancu ,  Yo Chan Son

Inventor： Steven E. Schulz ,  Constantin C. Stancu ,  Yo Chan Son

IPC: H02P1/46

CPC classification number: H02P6/185 ,  H02P6/183 ,  H02P21/18 ,  H02P21/32 ,  H02P2203/11

Abstract: Methods and apparatus are provided for aligning a control reference axis with a magnetic north of a permanent magnet motor. The method includes the steps of injecting a predetermined stator current on an estimated reference axis of the permanent magnet motor and introducing predetermined error on the estimated reference axis. The method further includes the steps of determining if a speed of the permanent magnet motor is greater than a predetermined threshold speed and setting the control reference axis to 180° added to the estimated reference axis if the speed of the permanent magnet motor is greater than the predetermined threshold speed or setting the control reference axis to the estimated reference axis if the speed of the permanent magnet motor is less than or equal to the predetermined threshold speed.

Abstract translation: 提供了用于使控制参考轴与永磁电动机的磁北对准的方法和装置。 该方法包括以下步骤：将预定定子电流注入到永磁电动机的估计参考轴上，并将预定误差引入估计的参考轴。 该方法还包括以下步骤：如果永磁电动机的速度大于预定阈值速度，则将该控制基准轴设定为估计参考轴的180°，如果永磁电动机的速度大于 如果永磁电动机的速度小于或等于预定阈值速度，则将控制参考轴设置为估计的参考轴。

公开(公告)号：US20110163704A1

公开(公告)日：2011-07-07

申请号：US12652931

申请日：2010-01-06

Applicant: Wei D. Wang ,  Nitinkumar R. Patel ,  Yo Chan Son

Inventor： Wei D. Wang ,  Nitinkumar R. Patel ,  Yo Chan Son

IPC: H02P6/12

CPC classification number: F04B17/03 ,  H02P6/182 ,  H02P29/0241 ,  H02P2203/03

Abstract: A multiphase alternating current permanent magnet synchronous electric motor is coupled to an actuator. A sensorless electric motor drive control system controls operation of the electric motor. An initial phase angle and a rotational speed of a rotor of the electric motor are estimated. Operation of the sensorless electric motor drive control system and the electric motor are monitored using the estimated initial phase angle and the estimated rotational speed of the rotor of the electric motor. A fault in one of the sensorless electric motor drive control system and the electric motor is detected based upon the monitored operation.

Abstract translation: 多相交流永磁同步电动机与致动器连接。 无传感器电动机驱动控制系统控制电动机的运行。 估计电动机的转子的初始相位角和转速。 使用估计的初始相位角和电动机的转子的估计旋转速度监视无传感器电动机驱动控制系统和电动机的操作。 基于所监视的操作来检测无传感器电动机驱动控制系统和电动机之一的故障。