公开(公告)号：US08378603B2

公开(公告)日：2013-02-19

申请号：US12687496

申请日：2010-01-14

Applicant: S. M. N. Hasan ,  Brian A. Welchko ,  David P. Tasky ,  Justin O. Nielsen ,  Silva Hiti

Inventor： S. M. N. Hasan ,  Brian A. Welchko ,  David P. Tasky ,  Justin O. Nielsen ,  Silva Hiti

IPC: H02P1/04

CPC classification number: H02P21/0003 ,  H02P21/22 ,  H02P27/08

Abstract: Methods and systems for controlling an electric motor are provided. The electric motor includes at least one winding. A winding current flowing through the at least one winding is monitored. The winding current has an oscillating component and an offset component. The offset component of the winding current is isolated from the oscillating component of the winding current. The electric motor is controlled based on the offset component of the winding current.

Abstract translation: 提供了用于控制电动机的方法和系统。 电动机包括至少一个绕组。 监测流经至少一个绕组的绕组电流。 绕组电流具有振荡分量和偏移分量。 绕组电流的偏移分量与绕组电流的振荡分量隔离。 基于绕组电流的偏移分量来控制电动机。

公开(公告)号：US20120109431A1

公开(公告)日：2012-05-03

申请号：US12916719

申请日：2010-11-01

Applicant: Wei D. Wang ,  Brian A. Welchko ,  Kevin P. Houle ,  Darren Crewes

Inventor： Wei D. Wang ,  Brian A. Welchko ,  Kevin P. Houle ,  Darren Crewes

IPC: B60L15/20 ,  G06F19/00

CPC classification number: B60L15/20 ,  B60L3/0061 ,  B60L11/14 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2270/145 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7275

Abstract: A method to control a powertrain having an electric motor includes monitoring a torque command to the motor, predicting a motor torque for the motor based upon the torque command, monitoring an actual motor torque of the motor, comparing the actual motor torque to the predicted torque, and indicating a motor fault when the actual motor torque and the predicted torque differ by more than a calibratable threshold.

Abstract translation: 控制具有电动机的动力传动系的方法包括：监测对电动机的转矩指令，基于转矩指令预测电动机的电动机转矩，监测电动机的实际电动机转矩，将实际电动机转矩与预测转矩进行比较 并且当实际电动机转矩和预测转矩差超过可校准阈值时指示电动机故障。

公开(公告)号：US08122985B2

公开(公告)日：2012-02-28

申请号：US12142651

申请日：2008-06-19

Applicant: James M. Nagashima ,  Gregory S. Smith ,  Brian A. Welchko ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

Inventor： James M. Nagashima ,  Gregory S. Smith ,  Brian A. Welchko ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

IPC: B60W20/00 ,  B60W10/24 ,  B60W10/26 ,  B60W10/28

CPC classification number: B60L11/1881 ,  B60L11/1892 ,  B60L2210/20 ,  Y02T10/725 ,  Y02T90/34

Abstract: Systems and methods are provided for a double-ended inverter drive system for a fuel cell vehicle. An electric drive system for a vehicle comprises an electric motor configured to provide traction power to the vehicle. A first inverter is coupled to the electric motor, and is configured to provide alternating current to the electric motor. A fuel cell is coupled to the first inverter to provide power flow from the fuel cell to the electric motor. A second inverter is coupled to the electric motor, and is configured to provide alternating current to the electric motor. An energy source is coupled to the second inverter to provide power flow between the energy source and the electric motor. A controller is coupled to the first inverter and the second inverter, and is configured to provide a constant power from the fuel cell during operation of the electric motor.

Abstract translation: 为燃料电池车辆的双端逆变器驱动系统提供系统和方法。 一种用于车辆的电驱动系统包括：电动机，其构造成为车辆提供牵引力。 第一逆变器耦合到电动机，并且被配置为向电动机提供交流电。 燃料电池耦合到第一逆变器以提供从燃料电池到电动机的动力流。 第二逆变器耦合到电动机，并且被配置为向电动机提供交流电。 能量源耦合到第二逆变器以在能量源和电动机之间提供功率流。 控制器耦合到第一逆变器和第二逆变器，并且被配置为在电动机的操作期间从燃料电池提供恒定的功率。

公开(公告)号：US08115433B2

公开(公告)日：2012-02-14

申请号：US12236172

申请日：2008-09-23

Applicant: Brian A. Welchko

Inventor： Brian A. Welchko

IPC: H02P27/06

CPC classification number: H02M7/53871 ,  B60L11/1803 ,  B60L2210/46 ,  B60L2220/58 ,  H02P25/22 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7241

Abstract: Systems and methods are provided for pulse-width modulated control of power inverter using phase-shifted carrier signals. An electrical system comprises an energy source and a motor. The motor has a first set of windings and a second set of windings, which are electrically isolated from each other. An inverter module is coupled between the energy source and the motor and comprises a first set of phase legs coupled to the first set of windings and a second set of phase legs coupled to the second set of windings. A controller is coupled to the inverter module and is configured to achieve a desired power flow between the energy source and the motor by modulating the first set of phase legs using a first carrier signal and modulating the second set of phase legs using a second carrier signal. The second carrier signal is phase-shifted relative to the first carrier signal.

Abstract translation: 提供了使用相移载波信号对功率逆变器进行脉宽调制控制的系统和方法。 电气系统包括能量源和电动机。 电动机具有第一组绕组和第二组绕组，它们彼此电隔离。 逆变器模块耦合在能量源和电动机之间，并且包括耦合到第一组绕组的第一组相位支脚和耦合到第二组绕组的第二组相位支路。 控制器耦合到逆变器模块并且被配置为通过使用第一载波信号调制第一组相位支路并且使用第二载波信号来调制第二组相位支路来实现能量源和电动机之间的期望功率流 。 第二载波信号相对于第一载波信号相移。

公开(公告)号：US08026691B2

公开(公告)日：2011-09-27

申请号：US12132482

申请日：2008-06-03

Applicant: James M. Nagashima ,  Brian A. Welchko ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  Gregory S. Smith ,  George John

Inventor： James M. Nagashima ,  Brian A. Welchko ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  Gregory S. Smith ,  George John

IPC: H02P27/04

CPC classification number: B60L11/1887 ,  B60L11/005 ,  B60L11/1892 ,  Y02T10/7022 ,  Y02T90/34

Abstract: A double ended inverter system for an AC traction motor of a vehicle includes a fuel cell configured to provide a DC voltage, an impedance source inverter subsystem coupled to the fuel cell, a DC voltage source, and an inverter subsystem coupled to the DC voltage source. The impedance source inverter subsystem, which includes an ultracapacitor, is configured to drive the AC traction motor. The inverter subsystem is configured to drive the AC electric traction motor. The ultracapacitor is implemented in a crossed LC network coupled to the fuel cell.

Abstract translation: 一种用于车辆的交流牵引电动机的双端逆变器系统包括配置为提供直流电压的燃料电池，耦合到燃料电池的阻抗源逆变器子系统，直流电压源和耦合到直流电压源的逆变器子系统 。 包括超级电容器的阻抗源逆变器子系统被配置为驱动AC牵引电动机。 变频器子系统配置为驱动交流电牵引电动机。 超级电容器实现在耦合到燃料电池的交叉LC网络中。

公开(公告)号：US20110202211A1

公开(公告)日：2011-08-18

申请号：US12704614

申请日：2010-02-12

Applicant: BRIAN A. WELCHKO ,  SILVA HITI ,  ABBAS RAFTARI ,  JEONG J. PARK ,  HANNE BUUR ,  WEI D. WANG ,  BRIAN R. MEDEMA ,  WILLIAM R. CAWTHORNE ,  JACKIE L. CUI

Inventor： BRIAN A. WELCHKO ,  SILVA HITI ,  ABBAS RAFTARI ,  JEONG J. PARK ,  HANNE BUUR ,  WEI D. WANG ,  BRIAN R. MEDEMA ,  WILLIAM R. CAWTHORNE ,  JACKIE L. CUI

IPC: G06F7/00

CPC classification number: B60R16/03 ,  B60L2240/423 ,  B60W10/08 ,  B60W20/11 ,  B60W2710/083 ,  Y02T10/642

Abstract: Methods and systems are provided for controlling an electrical system of a vehicle. Sensors are used to obtain first data for a first path of calculations and second data for a second path of calculations. The first path comprises a first plurality of calculations of generating a value of a parameter pertaining to the electrical system, and the second path comprises a second plurality of calculations of monitoring the electrical system with respect to the first path. A processor is coupled to the plurality of sensors, and is configured to determine whether a data frozen flag is active, perform the first plurality of calculations of the first path using the first data if the first data flag is inactive, and perform the second plurality of calculations of the second path if the first data flag is active.

Abstract translation: 提供了用于控制车辆的电气系统的方法和系统。 传感器用于获得用于计算的第一路径的第一数据和用于第二计算路径的第二数据。 第一路径包括产生与电气系统相关的参数的值的第一多个计算，并且第二路径包括相对于第一路径监测电气系统的第二多个计算。 处理器耦合到所述多个传感器，并且被配置为确定数据冻结标志是否有效，如果所述第一数据标志不活动，则使用所述第一数据执行所述第一路径的所述第一多次计算，并且执行所述第二多个传感器 如果第一数据标志有效，则计算第二路径。

公开(公告)号：US07990098B2

公开(公告)日：2011-08-02

申请号：US12113710

申请日：2008-05-01

Applicant: Milun Perisic ,  Silva Hiti ,  Gregory S. Smith ,  James M. Nagashima ,  George John ,  Sibaprasad Chakrabarti ,  Brian A. Welchko

Inventor： Milun Perisic ,  Silva Hiti ,  Gregory S. Smith ,  James M. Nagashima ,  George John ,  Sibaprasad Chakrabarti ,  Brian A. Welchko

IPC: H02P27/04

CPC classification number: H02P4/00 ,  B60L11/005 ,  B60L11/123 ,  B60L11/18 ,  B60L11/1868 ,  B60L11/1881 ,  B60L15/007 ,  B60L15/20 ,  B60L2210/40 ,  B60L2220/42 ,  B60L2220/54 ,  B60L2220/58 ,  B60L2240/12 ,  B60L2240/14 ,  B60L2240/527 ,  B60L2240/529 ,  H02M7/493 ,  Y02T10/6217 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7022 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y02T90/34

Abstract: Systems and apparatus are provided for an inverter system for use in a vehicle. The inverter system comprises a six-phase motor having a first set of three-phase windings and a second set of three-phase windings and a three-phase motor having a third set of three-phase windings, wherein the third set of three-phase windings is coupled to the first set of three-phase windings and the second set of three-phase windings. The system further comprises a first energy source coupled to a first inverter adapted to drive the six-phase motor and the three-phase motor, wherein the first set of three-phase windings is coupled to the first inverter, and a second energy source coupled to a second inverter adapted to drive the six-phase motor and the three-phase motor, wherein the second set of three-phase windings is coupled to the second inverter. A controller is coupled to the first inverter and the second inverter.

Abstract translation: 为在车辆中使用的逆变器系统提供系统和装置。 逆变器系统包括具有第一组三相绕组和第二组三相绕组的六相电动机和具有第三组三相绕组的三相电动机，其中第三组三相绕组， 相绕组耦合到第一组三相绕组和第二组三相绕组。 该系统还包括耦合到适于驱动六相电动机和三相电动机的第一逆变器的第一能量源，其中第一组三相绕组耦合到第一逆变器，并且耦合第二能量源 涉及适于驱动六相电动机和三相电动机的第二逆变器，其中第二组三相绕组耦合到第二逆变器。 控制器耦合到第一反相器和第二反相器。

公开(公告)号：US07956563B2

公开(公告)日：2011-06-07

申请号：US12110946

申请日：2008-04-28

Applicant: Milun Perisic ,  Silva Hiti ,  Brian A. Welchko ,  Sibaprasad Chakrabarti ,  James M. Nagashima ,  Gregory S. Smith ,  George John

Inventor： Milun Perisic ,  Silva Hiti ,  Brian A. Welchko ,  Sibaprasad Chakrabarti ,  James M. Nagashima ,  Gregory S. Smith ,  George John

IPC: H02P27/06 ,  H02P4/00

CPC classification number: H02P4/00 ,  B60L3/0046 ,  B60L11/005 ,  B60L11/14 ,  B60L11/1803 ,  B60L11/1868 ,  B60L11/1887 ,  B60L2210/40 ,  B60L2210/46 ,  B60L2220/58 ,  H02P25/22 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/70 ,  Y02T10/7022 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T90/34

Abstract: Systems and apparatus are provided for an inverter system for use in a vehicle having a first energy source and a second energy source. The inverter system comprises an electric motor having a first set of windings and a second set of windings. The inverter system further comprises a first inverter coupled to the first energy source and adapted to drive the electric motor, wherein the first set of windings are coupled to the first inverter. The inverter system also comprises a second inverter coupled to the second energy source and adapted to drive the electric motor, wherein the second set of windings are coupled to the second inverter. A controller is coupled to the first inverter and the second inverter to achieve desired power flow between the first energy source, the second energy source, and the electric motor.

Abstract translation: 为具有第一能量源和第二能量源的车辆中使用的逆变器系统提供系统和装置。 逆变器系统包括具有第一组绕组和第二组绕组的电动机。 逆变器系统还包括耦合到第一能量源并适于驱动电动机的第一逆变器，其中第一组绕组耦合到第一逆变器。 逆变器系统还包括耦合到第二能量源并适于驱动电动机的第二逆变器，其中第二组绕组耦合到第二逆变器。 控制器耦合到第一逆变器和第二逆变器，以在第一能量源，第二能量源和电动机之间实现期望的功率流。

公开(公告)号：US20110040519A1

公开(公告)日：2011-02-17

申请号：US12541734

申请日：2009-08-14

Applicant: CHIA-CHOU YEH ,  BRIAN A. WELCHKO ,  STEVEN E. SCHULZ

Inventor： CHIA-CHOU YEH ,  BRIAN A. WELCHKO ,  STEVEN E. SCHULZ

IPC: G01P3/42 ,  G06F15/00

CPC classification number: H02P6/16 ,  H02P6/15 ,  H02P6/18

Abstract: Methods, system and apparatus are provided for estimating rotor angular position and angular velocity during a position sensor fault, and for verifying the accuracy or inaccuracy of a position sensor's outputs based on the estimated rotor angular position and angular velocity of the rotor following a position sensor fault.

Abstract translation: 提供了用于在位置传感器故障期间估计转子角位置和角速度的方法，系统和装置，并且用于基于位置传感器跟随位置传感器的转子的估计的转子角位置和角速度来验证位置传感器的输出的准确性或不准确度 故障。

公开(公告)号：US07888905B2

公开(公告)日：2011-02-15

申请号：US12013093

申请日：2008-01-11

Applicant: Brian A. Welchko ,  Steven E. Schultz ,  Silva Hiti

Inventor： Brian A. Welchko ,  Steven E. Schultz ,  Silva Hiti

IPC: H02P27/04

CPC classification number: H02M7/53875 ,  H02M2007/53876

Abstract: Methods and systems for controlling a power inverter in an electric drive system of an automobile are provided. A signal controlling the power inverter is modified utilizing a first voltage distortion compensation method if a modulation index of the signal is less than a first modulation index value. The signal is modified utilizing a second voltage distortion compensation method if the modulation index is at least equal to the first modulation index value.

Abstract translation: 提供了一种用于控制汽车电驱动系统中的电力逆变器的方法和系统。 如果信号的调制指数小于第一调制指数值，则利用第一电​​压失真补偿方法来修改控制功率逆变器的信号。 如果调制指数至少等于第一调制指数值，则利用第二电压失真补偿方法修改信号。