公开(公告)号：US07843156B2

公开(公告)日：2010-11-30

申请号：US11769856

申请日：2007-06-28

申请人： Brian A Welchko ,  Keith A Rodman

发明人： Brian A Welchko ,  Keith A Rodman

IPC分类号： H02P1/04

CPC分类号： H02P27/06

摘要： Methods and apparatus are provided for dynamic voltage control of electric motors. An inverter provides an output voltage to an electric motor based on a gate voltage. The method includes determining a speed of the electric motor and modifying the gate voltage based on the speed of the electric motor. The apparatus includes a gate drive circuit and a controller coupled to the gate drive circuit. The gate drive circuit provides a gate voltage to a switch network, and the switch network produces the output voltage in response to the gate voltage. The controller modifies the gate voltage based on a speed of the electric motor.

摘要翻译： 提供了用于电动机的动态电压控制的方法和装置。 逆变器基于栅极电压向电动机提供输出电压。 该方法包括确定电动机的速度并基于电动机的速度来改变门电压。 该装置包括栅极驱动电路和耦合到栅极驱动电路的控制器。 栅极驱动电路向开关网络提供栅极电压，并且开关网络响应于栅极电压产生输出电压。 控制器基于电动机的速度修改栅极电压。

公开(公告)号：US08446113B2

公开(公告)日：2013-05-21

申请号：US12817950

申请日：2010-06-17

申请人： Brian A Welchko ,  Konstantin S. Majarov ,  Silva Hiti ,  Steven E. Schulz ,  Aniket Kothari ,  Nicholas Kokotovich

发明人： Brian A Welchko ,  Konstantin S. Majarov ,  Silva Hiti ,  Steven E. Schulz ,  Aniket Kothari ,  Nicholas Kokotovich

IPC分类号： H02P3/14

CPC分类号： B60L7/06 ,  B60L3/04 ,  B60L7/003 ,  B60L7/08 ,  Y02T10/7258

摘要： Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated or each of the plurality of low switches is activated and each of the plurality of high switches is deactivated. In the second mode of operation, each of the plurality of high switches is deactivated and each of the plurality of low switches is deactivated.

摘要翻译： 提供了用于操作具有多个高开关的逆变器和耦合到电动机的多个低开关的方法和系统。 检测到表示电动机减速的事件。 逆变器在电动机的减速期间在第一操作模式和第二操作模式之间交替。 在第一操作模式中，多个高开关中的每一个被激活，并且多个低开关中的每一个被去激活，或者多个低开关中的每一个被激活，并且多个高开关中的每一个被去激活。 在第二操作模式中，多个高开关中的每一个被去激活，并且多个低开关中的每一个被去激活。

公开(公告)号：US07659688B2

公开(公告)日：2010-02-09

申请号：US11743709

申请日：2007-05-03

申请人： Steven E. Schulz ,  Sean E Gleason ,  Brian A Welchko

发明人： Steven E. Schulz ,  Sean E Gleason ,  Brian A Welchko

IPC分类号： H02P23/00

CPC分类号： H02P21/06 ,  H02P21/14 ,  H02P2203/05

摘要： Methods and systems are provided for aligning a resolver in an electric motor system. The method includes commanding a d-axis current command and a speed command, operating an electric motor without a load in response to the d-axis current command and the speed command, determining a rotor speed in response to the speed command, and determining an offset of the resolver based on the speed command and the rotor speed when the rotor speed has substantially stabilized.

摘要翻译： 提供了用于对准电动机系统中的旋转变压器的方法和系统。 该方法包括命令d轴电流指令和速度指令，响应于d轴电流指令和速度指令，无负载地操作电动机，响应速度指令确定转子速度，并确定 当转子速度基本上稳定时，基于速度指令和转子速度的旋转变压器的偏移。

公开(公告)号：US07652447B2

公开(公告)日：2010-01-26

申请号：US11625929

申请日：2007-01-23

申请人： Terence G. Ward ,  Alex Thompson ,  Brian A Welchko

发明人： Terence G. Ward ,  Alex Thompson ,  Brian A Welchko

IPC分类号： H02P1/16

CPC分类号： B60K6/48 ,  B60K6/26 ,  B60K6/28 ,  B60K6/40 ,  B60L11/005 ,  B60L11/14 ,  B60L11/1861 ,  B60L11/1868 ,  B60L11/1874 ,  B60L11/1877 ,  B60L2210/40 ,  B60L2240/485 ,  B60L2240/545 ,  Y02T10/6221 ,  Y02T10/646 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7044 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7241

摘要： Power capacitors for AC motors are mounted diametrically on associated transmissions. The power capacitors are in one embodiment annular and in another embodiment, arcuate. By having power capacitors mounted on transmission housings diametrically, cooling of the power capacitors is facilitated for both air and liquid cooling.

摘要翻译： 交流电机的功率电容器直径安装在相关的变速器上。 功率电容器在一个实施例中是环形的，在另一个实施例中是弓形的。 通过直接安装在变速器壳体上的功率电容器，电力电容器的冷却便于空气和液体冷却。

公开(公告)号：US08556011B2

公开(公告)日：2013-10-15

申请号：US12255728

申请日：2008-10-22

申请人： Mohammad N Anwar ,  Prakash Haribhai Desai ,  Sean E Gleason ,  Brian A Welchko

发明人： Mohammad N Anwar ,  Prakash Haribhai Desai ,  Sean E Gleason ,  Brian A Welchko

IPC分类号： B60W20/00

CPC分类号： B60L3/12 ,  B60W30/1843 ,  B60W30/1846

摘要： A hybrid powertrain system includes an engine, an electric machine, a power electronics device including a plurality of electric circuit layers, and a cooling system. A method for managing thermal energy in the power electronics device includes monitoring a plurality of temperature sensors in the power electronics device, monitoring electric power into and out of the power electronics device, predicting temperatures for the plurality of electric circuit layers, and controlling the hybrid powertrain system based upon the predicted temperatures for the plurality of electric circuit layers.

摘要翻译： 混合动力系统包括发动机，电机，包括多个电路层的电力电子设备和冷却系统。 一种用于管理电力电子设备中的热能的方法包括：监测电力电子设备中的多个温度传感器，监测电力进入和流出电力电子设备，预测多个电路层的温度，以及控制混合 基于多个电路层的预测温度的动力系统。

公开(公告)号：US08062170B2

公开(公告)日：2011-11-22

申请号：US11863592

申请日：2007-09-28

申请人： Stephen T. West ,  Wei D. Wang ,  Brian A Welchko ,  Steven E. Schulz ,  Peter E. Wu

发明人： Stephen T. West ,  Wei D. Wang ,  Brian A Welchko ,  Steven E. Schulz ,  Peter E. Wu

IPC分类号： B60W10/08 ,  F16H59/64

CPC分类号： G05D23/1934 ,  H02P29/0241 ,  H02P29/60 ,  Y10T477/23 ,  Y10T477/653

摘要： Temperature of an electric drive is regulated to prevent undesirable thermal effects. Temperature conditions of the electric drive system are monitored and torque of the electric drive system is limited based on the temperature conditions.

摘要翻译： 电驱动器的温度被调节以防止不期望的热效应。 监控电力驱动系统的温度条件，并根据温度条件限制电力驱动系统的转矩。

公开(公告)号：US07768228B2

公开(公告)日：2010-08-03

申请号：US11853894

申请日：2007-09-12

申请人： Lateef A. Kajouke ,  Brian A Welchko

发明人： Lateef A. Kajouke ,  Brian A Welchko

IPC分类号： H02P27/04

CPC分类号： H02M7/5387 ,  H02P27/08

摘要： Methods and systems for converting direct current (DC) power to alternating current (AC) power are provided. A first phase of the AC power is generated based on a first carrier signal. A second phase of the AC power is generated based on a second carrier signal.

摘要翻译： 提供了将直流（DC）功率转换为交流（AC）功率的方法和系统。 基于第一载波信号产生交流电源的第一相。 基于第二载波信号产生交流电源的第二相。

公开(公告)号：US07576500B2

公开(公告)日：2009-08-18

申请号：US11756349

申请日：2007-05-31

申请人： Nitinkumar R. Patel ,  Mohammad N. Anwar ,  Silva Hiti ,  Brian A Welchko ,  Steven E. Schulz ,  Lisa M. Talarico

发明人： Nitinkumar R. Patel ,  Mohammad N. Anwar ,  Silva Hiti ,  Brian A Welchko ,  Steven E. Schulz ,  Lisa M. Talarico

IPC分类号： H02P1/00

CPC分类号： H02P27/08 ,  B60L2270/142 ,  H02M1/14 ,  Y02T10/642

摘要： Methods and systems for operating a motor coupled to an electrical bus in a vehicle are provided. Selected resonant frequencies of the electrical bus are determined. The selected resonant frequencies include a low resonant frequency and a high resonant frequency. Power is provided to the motor through at least one switch operating at a switching frequency. The switching frequency is controlled as a function of a rate of operation of the motor. The function is characterized by one of a first substantially linear portion having a first slope when the switching frequency is less than or equal to a selected switching frequency and a second substantially linear portion having a second slope if the switching frequency is greater than the selected frequency, the selected switching frequency being greater than the low resonant frequency and a substantially linear portion having a y-intercept being greater than the low resonant frequency.

摘要翻译： 提供了用于操作耦合到车辆中的电气总线的马达的方法和系统。 确定电气总线的选定谐振频率。 所选择的谐振频率包括低谐振频率和高谐振频率。 通过至少一个以开关频率工作的开关将电力提供给电动机。 开关频率根据电机的运行速度进行控制。 该功能的特征在于当开关频率小于或等于所选择的开关频率时具有第一斜率的第一基本线性部分中的一个以及具有第二斜率的第二基本线性部分，如果开关频率大于所选择的频率 ，所选择的开关频率大于低谐振频率，并且具有大于低谐振频率的y截距的基本线性部分。

公开(公告)号：US07471526B2

公开(公告)日：2008-12-30

申请号：US11676574

申请日：2007-02-20

申请人： Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz ,  Silva Hiti

发明人： Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz ,  Silva Hiti

IPC分类号： H02M7/537 ,  H02P23/00

CPC分类号： H03K3/017 ,  H02M7/5395 ,  H02M2001/0025 ,  H02P27/06

摘要： Methods and apparatus are provided for reducing voltage distortion effects at low speed operation in electric drives. The method comprises receiving a first signal having a duty cycle with a range between minimum and maximum achievable duty cycles, producing a second duty cycle based on the minimum achievable duty cycle if the duty cycle is within a distortion range and less than a first clipping value, producing a second duty cycle based on the closer of minimum and maximum pulse widths if the duty cycle is within the distortion range and between the first and a second clipping value, producing a second duty cycle based on the maximum achievable duty cycle if the duty cycle is within the distortion range and greater than the second clipping value, and transmitting a second signal to the voltage source inverter having the second duty cycle.

摘要翻译： 提供了用于在电驱动器中降低低速运行时的电压失真效应的方法和装置。 该方法包括接收具有在最小和最大可实现占空比之间的范围的占空比的第一信号，如果占空比在失真范围内并小于第一限幅值，则基于最小可实现占空比产生第二占空比 如果占空比在失真范围内，并且在第一和第二限幅值之间，则基于更小的最小和最大脉冲宽度产生第二占空比，如果占空比基于最大可实现的占空比，则产生第二占空比 循环处于失真范围内并且大于第二限幅值，并且将第二信号发送到具有第二占空比的电压源逆变器。

公开(公告)号：US07774148B2

公开(公告)日：2010-08-10

申请号：US11668830

申请日：2007-01-30

申请人： Brian A Welchko ,  Silva Hiti ,  Steven E. Schulz

发明人： Brian A Welchko ,  Silva Hiti ,  Steven E. Schulz

IPC分类号： G01L1/00 ,  H02K21/12 ,  H02P23/00 ,  G01R1/20

CPC分类号： H02P23/14

摘要： In an embodiment of a method, the method includes measuring currents and voltages that are coupled to a motor that includes an internal permanent magnet and determining a reactive power in response to the measured currents and voltages. The method further includes estimating a first flux orthogonal to an axis of the internal permanent motor and estimating a second flux aligned with the axis of the internal permanent motor. Additionally, the method includes estimating a torque in response to the measured currents and the first and second fluxes.

摘要翻译： 在方法的实施例中，该方法包括测量耦合到包括内部永磁体的电动机的电流和电压，并响应于测量的电流和电压来确定无功功率。 该方法还包括估计与内部永久电动机的轴正交的第一通量，并估计与内部永久电动机的轴线对准的第二通量。 另外，该方法包括响应于测量的电流和第一和第二通量来估计转矩。