公开(公告)号：US07286375B1

公开(公告)日：2007-10-23

申请号：US11625962

申请日：2007-01-23

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

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

IPC: H02M1/12 ,  H02M7/68 ,  H02M7/44

CPC classification number: H02M7/53803 ,  H02M2001/385

Abstract: Methods and apparatus are provided for compensating for a deviation in voltage output of a phase leg inverter when dead-time periods are inserted to prevent shoot-through failures. The method includes determining a pulse width for an input signal to the inverter such that the inverter voltage output is a desired amount. The pulse width is based on the non-inverted or inverted pulse sequences of two carrier signals and the polarity of current through the inverter. An amount of pulse width is added to the input signal when the current is positive, and an amount of pulse width is subtracted from the input signal when the current is negative. An additional amount of pulse width is added to or subtracted from the input signal depending on whether the carrier signal sequence changes from a non-inverted signal to an inverted signal or changes from an inverted signal to a non-inverted signal, respectively.

Abstract translation: 提供了方法和装置，用于在插入死区时间时补偿相位臂逆变器的电压输出偏差，以防止直通故障。 该方法包括：确定用于反相器的输入信号的脉冲宽度，使得逆变器电压输出为期望的量。 脉冲宽度基于两个载波信号的非反相或反相脉冲序列以及通过反相器的电流极性。 当电流为正时，将一定量的脉冲宽度加到输入信号上，当电流为负时，从输入信号中减去一定量的脉冲宽度。 根据载波信号序列是否从非反相信号改变为反相信号，或分别从反相信号改变为非反相信号，将附加量的脉冲宽度加到输入信号或从输入信号中减去。

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：US20130043816A1

公开(公告)日：2013-02-21

申请号：US13214042

申请日：2011-08-19

Applicant: BRIAN A. WELCHKO ,  MIN DAI

Inventor： BRIAN A. WELCHKO ,  MIN DAI

IPC: H02H7/08

CPC classification number: H02M1/32 ,  H02P3/22 ,  H02P21/0085 ,  H02P27/08 ,  H02P2203/09

Abstract: Embodiments of the present invention relate to methods, systems, a machine-readable medium operable in a controller, and apparatus for controlling a multi-phase inverter that drives a multi-phase electric machine. When a sensor fault is detected, a phase current angle is computed based on the feedback stator currents, and used to estimate an angular velocity and an angular position of a rotor of the multi-phase electric machine. When the estimated angular velocity of the multi-phase electric machine is less than a transition angular velocity threshold, an open-circuit response can be applied at the multi-phase inverter by controlling all switches in the multi-phase inverter drive to be open. By contrast, when the estimated angular velocity is greater than the transition angular velocity threshold, a short-circuit response can be applied at the multi-phase inverter by controlling selected switches in the multi-phase inverter drive to connect all phases of the multi-phase inverter to a single bus (e.g., either the plus bus or the minus bus).

Abstract translation: 本发明的实施例涉及可在控制器中操作的方法，系统，机器可读介质，以及用于控制驱动多相电机的多相逆变器的装置。 当检测到传感器故障时，基于反馈定子电流计算相电流角，并用于估计多相电机的转子的角速度和角位置。 当多相电机的估计角速度小于过渡角速度阈值时，可以通过控制多相逆变器驱动中的所有开关打开来在多相逆变器处施加开路响应。 相反，当估计的角速度大于转换角速度阈值时，可以通过控制多相逆变器驱动中的选定开关来连接多相逆变器的所有相，从而在多相逆变器上施加短路响应， 单相总线（例如，加总线或负母线）。

公开(公告)号：US20130020971A1

公开(公告)日：2013-01-24

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命令（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）。 该方法还包括从相电压误差（Verror）产生d轴指令电流校正值（＆Dgr; Id）和q轴指令电流校正值（＆Dgr; Iq）; 并且通过d轴和q轴命令电流校正值（＆Dgr; Id和＆Dgr; Iq）来调整预定义的最佳电流命令（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：US20110213518A1

公开(公告)日：2011-09-01

申请号：US12715081

申请日：2010-03-01

Applicant: BRIAN A. WELCHKO ,  NITINKUMAR R. PATEL ,  LEAH DUNBAR ,  WILLIAM R. CAWTHORNE ,  STEVEN E. SCHULZ

Inventor： BRIAN A. WELCHKO ,  NITINKUMAR R. PATEL ,  LEAH DUNBAR ,  WILLIAM R. CAWTHORNE ,  STEVEN E. SCHULZ

IPC: B60L11/00 ,  H02P7/285

CPC classification number: B60L15/20 ,  H02P29/032 ,  H02P29/60 ,  Y02T10/645 ,  Y02T10/7275 ,  Y10T477/23

Abstract: A method for operating an electric motor is provided. The method includes receiving a torque request; determining long term torque capabilities and short term torque capabilities of the electric motor; generating a torque command based on the torque request and at least one of the long term torque capabilities or the short term torque capabilities; and controlling the electric motor in accordance with the torque command.

Abstract translation: 提供了一种用于操作电动机的方法。 该方法包括接收扭矩请求; 确定电动机的长期扭矩能力和短期扭矩能力; 基于所述转矩请求和所述长期扭矩能力或短期扭矩能力中的至少一个产生转矩指令; 并根据转矩指令控制电动机。