公开(公告)号：US09623817B2

公开(公告)日：2017-04-18

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 ,  B60R16/03 ,  B60W10/08 ,  B60W20/11

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.

公开(公告)号：US08519648B2

公开(公告)日：2013-08-27

申请号：US13189440

申请日：2011-07-22

Applicant: Gabriel Gallegos-Lopez ,  Min Dai ,  Brian A. Welchko

Inventor： Gabriel Gallegos-Lopez ,  Min Dai ,  Brian A. Welchko

IPC: H02P21/14

CPC classification number: H02P21/0089 ,  H02P21/06 ,  H02P29/662

Abstract: Methods and apparatus are provided for rotor and stator temperature compensation for field weakening current. The method comprises generating a phase voltage feed back signal Vph based in part on pre-defined optimal current commands (ID* and IQ*) received by the IPM, generating a phase voltage command (Vphcmd) based in part on a temperature of a magnetic rotor and stator of the IPM, and generating a phase voltage error (Verror) by subtracting the phase voltage feed back signal (Vph) from the phase voltage command (Vphcmd). The method further comprises generating a d-axis command current correction value (ΔId) and a q-axis command current correction value (ΔIq) from the phase voltage error (Verror); and adjusting the pre-defined optimal current commands (ID* and IQ*) by the d-axis and the q-axis command current correction values (ΔId and ΔIq).

Abstract translation: 提供了用于磁场弱化电流的转子和定子温度补偿的方法和装置。 该方法包括基于由IPM接收的预定义的最佳电流指令（ID *和IQ *）产生相电压反馈信号Vph，产生部分基于磁性温度的相电压指令（Vphcmd） 转子和定子，并通过从相电压指令（Vphcmd）减去相电压反馈信号（Vph）产生相电压误差（Verror）。 该方法还包括从相位电压误差（Verror）产生d轴指令电流校正值（DeltaId）和q轴指令电流校正值（ΔIq）; 并且通过d轴和q轴指令电流校正值（DeltaId和ΔIq）来调节预定义的最佳电流指令（ID *和IQ *）。

公开(公告)号：US08278881B2

公开(公告)日：2012-10-02

申请号：US13189442

申请日：2011-07-22

Applicant: George R. Woody ,  Brian A. Welchko

Inventor： George R. Woody ,  Brian A. Welchko

IPC: H02J7/04 ,  H02J7/00 ,  H04M11/04 ,  G01C21/30

CPC classification number: B60W20/13 ,  B60K6/48 ,  B60L11/126 ,  B60L11/14 ,  B60L11/1816 ,  B60L11/1838 ,  B60L11/184 ,  B60L11/1844 ,  B60L11/1846 ,  B60L11/1848 ,  B60L11/1861 ,  B60L11/1887 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2220/12 ,  B60L2220/14 ,  B60L2220/18 ,  B60L2220/20 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/62 ,  B60L2240/622 ,  B60L2240/72 ,  B60W10/08 ,  B60W10/26 ,  B60W10/28 ,  B60W20/00 ,  B60W2510/244 ,  B60W2550/402 ,  H01M10/44 ,  H01M10/48 ,  H02J13/0075 ,  Y02E60/721 ,  Y02T10/6217 ,  Y02T10/6221 ,  Y02T10/6269 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7072 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7291 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/162 ,  Y02T90/163 ,  Y02T90/168 ,  Y02T90/169 ,  Y02T90/34 ,  Y04S10/126 ,  Y04S30/12 ,  Y04S30/14

Abstract: Methods and systems are provided for controlling the charging of an onboard energy storage system of a plug-in vehicle using a remote command center, such as a vehicle telematics service. An embodiment of such a method involves the transmission of a charge request for the onboard energy storage system to a remote command center associated with the plug-in vehicle. In response to the charge request, a charge command is received from the remote command center. The charging of the onboard energy storage system is regulated in accordance with the received charge command, which may be a charge enable command or a charge disable command.

Abstract translation: 提供的方法和系统用于使用诸如车辆远程信息处理服务的远程指挥中心来控制插入式车辆的车载能量存储系统的充电。 这种方法的实施例涉及将车载能量存储系统的收费请求传输到与插入式车辆相关联的远程命令中心。 响应于充电请求，从远程命令中心接收到充电命令。 根据接收到的充电命令来调节机载储能系统的充电，其可以是充电使能命令或充电禁止命令。

公开(公告)号：US08165737B2

公开(公告)日：2012-04-24

申请号：US11923287

申请日：2007-10-24

Applicant: Steven E. Schulz ,  Stephen T. West ,  Brian A. Welchko ,  Silva Hiti

Inventor： Steven E. Schulz ,  Stephen T. West ,  Brian A. Welchko ,  Silva Hiti

IPC: G05D3/00

CPC classification number: B60W20/15 ,  B60K1/02 ,  B60K6/365 ,  B60K6/445 ,  B60K6/52 ,  B60K6/547 ,  B60L15/20 ,  B60L2200/26 ,  B60L2240/423 ,  B60W10/08 ,  B60W20/00 ,  B60W2710/083 ,  Y02T10/6239 ,  Y02T10/6265 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

Abstract: Methods and systems for controlling a power inverter in automobiles utilizing two-mode transmissions are provided. The various embodiments control the power inverter by, responsive to a commanded torque of the electric motor being below a first torque level, controlling the power inverter to set a switching frequency of the power inverter at a first set frequency; and, responsive to the commanded torque of the electric motor being between the first torque level and a second torque level, controlling the power inverter to determine the switching frequency of the power inverter as a function of the commanded torque of the electric motor while maintaining the switching frequency above a dynamic frequency limit. The method reduces switching frequencies in the inverter at high commanded torques, while maintaining the switching frequencies above dynamic frequency limit that provides effective control over the motor.

Abstract translation: 提供了利用双模传输来控制汽车中的功率逆变器的方法和系统。 各种实施例通过响应于电动机的指令转矩低于第一转矩水平来控制功率逆变器，控制功率逆变器将功率逆变器的开关频率设定在第一设定频率; 并且响应于所述电动机的所述指令转矩在所述第一转矩水平和第二转矩水平之间，控制所述电力逆变器，以根据所述电动机的指令转矩来确定所述电力逆变器的开关频率，同时保持 开关频率高于动态频率限制。 该方法以较高的指令转矩降低变频器的开关频率，同时保持开关频率高于动态频率限制，从而提供对电机的有效控制。

公开(公告)号：US08102142B2

公开(公告)日：2012-01-24

申请号：US12110950

申请日：2008-04-28

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

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

IPC: H02P27/04

CPC classification number: B60L11/1868 ,  B60L2210/40 ,  H02J1/102 ,  H02J2001/008 ,  H02M3/33584 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/7241

Abstract: A double ended inverter system for an AC electric traction motor of a vehicle is disclosed. The inverter system serves as an interface between two different energy sources having different operating characteristics. The inverter system includes a first energy source having first operating characteristics associated therewith, and a first inverter subsystem coupled to the first energy source and configured to drive the AC electric traction motor. The inverter system also includes a second energy source having second operating characteristics associated therewith, wherein the first operating characteristics and the second operating characteristics are different, and a second inverter subsystem coupled to the second energy source and configured to drive the AC electric traction motor. In addition, the inverter system has a controller coupled to the first inverter subsystem and to the second inverter subsystem. The controller is configured to influence operation of the first inverter subsystem and the second inverter subsystem to manage power transfer among the first energy source, the second energy source, and the AC electric traction motor.

Abstract translation: 公开了一种用于车辆的交流电力牵引电动机的双端逆变器系统。 逆变器系统用作具有不同操作特性的两个不同能量源之间的接口。 逆变器系统包括具有与其相关联的第一操作特性的第一能量源和耦合到第一能量源并被配置为驱动AC电力牵引电动机的第一逆变器子系统。 逆变器系统还包括具有与其相关联的第二操作特性的第二能量源，其中第一操作特性和第二操作特性不同，以及耦合到第二能量源并被配置为驱动交流电力牵引电动机的第二逆变器子系统。 此外，逆变器系统具有耦合到第一逆变器子系统和第二逆变器子系统的控制器。 控制器被配置为影响第一逆变器子系统和第二逆变器子系统的操作，以管理第一能量源，第二能量源和交流电力牵引电动机之间的功率传递。

公开(公告)号：US08054032B2

公开(公告)日：2011-11-08

申请号：US12106868

申请日：2008-04-21

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

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

IPC: H02P27/04

CPC classification number: H02M7/53871 ,  B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

Abstract: Systems and methods are provided for controlling a double-ended inverter system having a first inverter and a second inverter. The method comprises determining a required output current and determining a desired second inverter current. The method further comprises determining a second inverter switching function, wherein only a selected leg in the second inverter is modulated at a duty cycle, determining a first inverter switching function based on the second inverter switching function, and modulating the first inverter and the second inverter using the first inverter switching function and the second inverter switching function.

Abstract translation: 提供了用于控制具有第一反相器和第二反相器的双端逆变器系统的系统和方法。 该方法包括确定所需的输出电流并确定期望的第二反相器电流。 该方法还包括确定第二逆变器切换功能，其中只有第二反相器中的选定支路以占空比调制，基于第二逆变器切换功能确定第一逆变器切换功能，并且调制第一逆变器和第二逆变器 使用第一个逆变器切换功能和第二个逆变器切换功能。

公开(公告)号：US20110202226A1

公开(公告)日：2011-08-18

申请号：US12704659

申请日：2010-02-12

Applicant: Brian A. Welchko ,  Abbas Raftari ,  Silva Hiti ,  Jeong J. Park ,  Hanne Buur ,  Wei D. Wang ,  William R. Cawthorne

Inventor： Brian A. Welchko ,  Abbas Raftari ,  Silva Hiti ,  Jeong J. Park ,  Hanne Buur ,  Wei D. Wang ,  William R. Cawthorne

IPC: G01M17/00

CPC classification number: B60L15/025 ,  B60K6/46 ,  B60K6/48 ,  B60L3/0038 ,  B60L11/14 ,  B60L15/20 ,  B60L2220/14 ,  B60L2240/36 ,  B60W50/045 ,  B60W2050/0039 ,  B60W2510/087 ,  Y02T10/6217 ,  Y02T10/6221 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275

Abstract: Methods and systems are provided for monitoring an electrical system of a vehicle. Data pertaining to the electrical system is obtained. Calculation modules are performed using the data to generate intermediate determinations. An aggregate calculation module is performed using each of the intermediate determinations to generate an aggregate determination pertaining to the electrical system. Redundant intermediate calculations are performed using the data to generate redundant intermediate determinations. Each of the redundant intermediate determinations is used for comparison with a respective intermediate determination.

Abstract translation: 提供了用于监测车辆的电气系统的方法和系统。 获得与电气系统有关的数据。 使用数据执行计算模块以产生中间确定。 使用每个中间确定来执行聚合计算模块，以生成关于电气系统的聚合确定。 使用数据执行冗余中间计算，以生成冗余中间确定。 每个冗余中间确定用于与相应的中间确定进行比较。

公开(公告)号：US07944161B2

公开(公告)日：2011-05-17

申请号：US12047123

申请日：2008-03-12

Applicant: Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

Inventor： Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

IPC: H02P21/00

CPC classification number: H02P27/06 ,  H02P3/22 ,  H02P23/10

Abstract: Methods and apparatus are provided for improved discharge of a DC bus which provides power to an inverter. An electric motor system provided with the improved discharge method for discharge of the DC bus includes an electric motor, the inverter which provides electric control for the permanent magnet electric motor, the direct current (DC) bus which provides power to the inverter, and a processor. The processor generates operational control signals and provides such operational control signals to the inverter. In response to detecting a predetermined discharge signal, the processor generates operational control signals for generating a ripple current in motor windings of the electric motor to dissipate energy from the DC bus through a passive load, the passive load including the motor windings of the electric motor.

Abstract translation: 提供了用于改进向逆变器提供电力的DC总线的放电的方法和装置。 具有改善的用于排放DC总线的放电方法的电动机系统包括电动机，为永磁电动机提供电力控制的逆变器，向逆变器供电的直流（DC）总线，以及 处理器。 处理器产生操作控制信号，并向变频器提供这种操作控制信号。 响应于检测到预定的放电信号，处理器产生用于在电动机的电动机绕组中产生纹波电流的操作控制信号，以通过无源负载从DC总线耗散能量，包括电动机的电动机绕组的被动负载 。

公开(公告)号：US07834574B2

公开(公告)日：2010-11-16

申请号：US11944781

申请日：2007-11-26

Applicant: Stephen T. West ,  Brian A. Welchko ,  Steven E. Schulz ,  Silva Hiti

Inventor： Stephen T. West ,  Brian A. Welchko ,  Steven E. Schulz ,  Silva Hiti

IPC: H02P1/32

CPC classification number: G01R19/2509 ,  G01R19/2513 ,  G01R31/007 ,  H02P21/00

Abstract: In various embodiments, a phase current sampling apparatus (300, 600, FIGS. 3, 6), an electric motor drive system (100, FIG. 1), and a motor vehicle (1200, FIG. 12) include switching circuitry adapted to receive first and second phase current waveforms. The switching circuitry provides the first phase current waveform during at least two offset sampling instants, and provides the second phase current waveform during a reference sampling instant. An analog-to-digital converter is adapted to sample the first phase current waveform at the offset sampling instants, and to sample the second phase current waveform at the reference sampling instant. An embodiment of a method for regulating phase current waveforms includes an analog-to-digital converter generating samples of a first phase current waveform at sampling instants that occur before and after a reference sampling instant, and generating a sample of a second phase current waveform at the reference sampling instant.

Abstract translation: 在各种实施例中，相电流采样装置（300,600，图3,6），电动机驱动系统（100，图1）和机动车辆（图12中的1200）包括适于 接收第一和第二相电流波形。 开关电路在至少两个偏移采样时刻提供第一相电流波形，并且在参考采样时刻期间提供第二相电流波形。 模拟 - 数字转换器适于在偏移采样时刻采样第一相电流波形，并在参考采样时刻采样第二相电流波形。 用于调节相电流波形的方法的实施例包括模数转换器，其在采样时刻产生在采样时刻之前和之后的采样时刻产生第一相电流波形的采样，并且产生第二相电流波形的采样 参考采样时刻。

公开(公告)号：US07756669B2

公开(公告)日：2010-07-13

申请号：US12141653

申请日：2008-06-18

Applicant: Constantin C. Stancu ,  Robert T. Dawsey ,  Brian A. Welchko

Inventor： Constantin C. Stancu ,  Robert T. Dawsey ,  Brian A. Welchko

IPC: G01K1/08 ,  G01N27/416

CPC classification number: G06F17/5036 ,  G06F2217/78

Abstract: Methods and systems are provided for modeling temperature characteristics of components in a system such as a power module for a hybrid or electric vehicle. A power dissipation value is calculated for each of the components in the system. A first filter is applied to the power dissipation value associated with a selected component to determine its estimated temperature. For each of the neighboring components located adjacent to the selected component, a cross-coupling temperature is estimated by applying other filters to each of the power dissipation values for the neighboring components. The estimated temperature of the selected component and the estimated cross-coupling temperatures for each of the neighboring components can then be added to thereby estimate the operating temperature for the selected component. Further, the operation of the system may be adjusted if the operating temperature determined for the selected component exceeds a threshold value.

Abstract translation: 提供了用于对诸如混合动力或电动车辆的功率模块的系统中的部件的温度特性进行建模的方法和系统。 为系统中的每个组件计算功耗值。 将第一滤波器应用于与所选择的分量相关联的功耗值，以确定其估计的温度。 对于与所选择的部件相邻的相邻部件中的每一个，通过对相邻部件的每个功率耗散值应用其它滤波器来估计交叉耦合温度。 然后可以添加所选择的部件的估计温度和每个相邻部件的估计交叉耦合温度，从而估计所选部件的工作温度。 此外，如果为所选择的部件确定的工作温度超过阈值，则可以调整系统的操作。