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51. 发明申请

US20120084039A1 SYSTEM AND METHOD OF MEASURING A SENSOR OFFSET 有权
标题翻译：测量传感器偏移的系统和方法
公开(公告)号：US20120084039A1
公开(公告)日：2012-04-05
申请号：US12895924
申请日：2010-10-01
申请人： Wei D. Wang , Steven E. Schulz , Jeffrey David , Jackie L. Cui , Andrew M. Zettel , Hanne Buur
发明人： Wei D. Wang , Steven E. Schulz , Jeffrey David , Jackie L. Cui , Andrew M. Zettel , Hanne Buur
IPC分类号： G01D18/00
CPC分类号： G01D18/006
摘要： A method includes detecting a first event and executing a first procedure to identify a sensor offset in response to detecting the first event. The method further includes determining, via a computing device, whether the sensor offset was measured during the execution of the first procedure, scheduling a second procedure to execute in response to detecting a second event if the sensor offset was not measured during the first procedure, and scheduling the first procedure to execute in response to detecting a subsequent occurrence of the first event if the sensor offset was measured during the first procedure.
摘要翻译：一种方法包括检测第一事件并且执行第一过程以响应于检测到第一事件来识别传感器偏移。该方法还包括经由计算设备确定在执行第一过程期间是否测量了传感器偏移量，如果在第一过程期间未测量传感器偏移量，则调度响应于检测到第二事件执行的第二过程，以及如果在所述第一过程期间测量了所述传感器偏移量，则响应于检测到所述第一事件的后续出现来调度执行所述第一过程。

52. 发明授权

US08134321B2 Motor control system for achieving peak torque 有权
标题翻译：电机控制系统实现峰值扭矩
公开(公告)号：US08134321B2
公开(公告)日：2012-03-13
申请号：US12419371
申请日：2009-04-07
申请人： Steven E. Schulz , Bon Ho Bae
发明人： Steven E. Schulz , Bon Ho Bae
IPC分类号： H02P7/00
CPC分类号： H02P21/22
摘要： In a motor controller, a modified interpolation technique uses an extrapolated torque command for the upper table to improve torque linearity under certain conditions. When the torque command input is greater than the max torque limit of a first look-up table, but less than the maximum torque limit of a second, adjacent look-up table, the desired current command is computed by interpolating between the maximum torque limit of the first table and a revised torque value for the second look-up table, wherein the revised torque value is determined by extrapolating from the maximum torque limit of the first look-up table through a torque value based on the torque command input.
摘要翻译：在电动机控制器中，改进的插补技术使用上表的外推转矩指令来在某些条件下提高扭矩线性度。当转矩指令输入大于第一查找表的最大转矩限制但小于第二相邻查找表的最大转矩极限时，通过内插最大转矩极限来计算所需电流指令以及第二查找表的修正扭矩值，其中，通过基于转矩指令输入的转矩值，通过从第一查找表的最大转矩极限推断来确定修正后的转矩值。

53. 发明申请

US20110309779A1 VEHICULAR ELECTRICAL SYSTEM AND METHOD FOR CONTROLLING AN INVERTER DURING MOTOR DECELERATION 有权
标题翻译：在电机减速期间控制逆变器的车辆电气系统和方法
公开(公告)号：US20110309779A1
公开(公告)日：2011-12-22
申请号：US12817952
申请日：2010-06-17
申请人： Silva Hiti , Steven E. Schulz , Konstantin S. Majarov , Brian A. Welchko
发明人： Silva Hiti , Steven E. Schulz , Konstantin S. Majarov , Brian A. Welchko
IPC分类号： H02P6/00
CPC分类号： B60L11/14 , B60L3/0061 , B60L7/14 , B60L15/2009 , B60L2210/10 , B60L2210/30 , B60L2210/40 , B60L2240/423 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7216 , Y02T10/7241 , Y02T10/7275
摘要： Methods and systems for operating an inverter coupled to an electric motor are provided. The inverter has a plurality of high switches and a plurality of low switches coupled to the electric motor. 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. In the second mode of operation, each of the plurality of low switches is activated and each of the plurality of high switches is deactivated.
摘要翻译：提供了用于操作耦合到电动机的逆变器的方法和系统。逆变器具有耦合到电动机的多个高开关和多个低开关。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。在第二操作模式中，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。

54. 发明申请

US20110309777A1 VEHICULAR ELECTRICAL SYSTEM AND METHOD FOR CONTROLLING AN INVERTER DURING MOTOR DECELERATION 有权
标题翻译：在电机减速期间控制逆变器的车辆电气系统和方法
公开(公告)号：US20110309777A1
公开(公告)日：2011-12-22
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。

55. 发明授权

US07923944B2 Single processor dual motor control 有权
标题翻译：单处理器双电机控制
公开(公告)号：US07923944B2
公开(公告)日：2011-04-12
申请号：US11758941
申请日：2007-06-06
申请人： Steven E. Schulz , Terry Murrell
发明人： Steven E. Schulz , Terry Murrell
IPC分类号： H02P5/00
CPC分类号： H02P5/74
摘要： A motor control processor is provided for motor phase current sampling of multiple variable frequency controlled electric motors, and includes an analog-to-digital (A/D) converter and a controller. The A/D converter has multiple analog inputs and generates a digital output signal in response to the multiple analog inputs. The controller is coupled to the A/D converter and determines a maximum desired switching frequency for a first one of the multiple variable frequency controlled electric motors. The controller further selects a base period in response to the maximum desired switching frequency and defines a phase shift time delay as a fraction of the base period so the controller may control the multiple analog inputs of the A/D converter to sample motor phase currents of each of the multiple variable frequency controlled electric motors at sample times determined by the controller in response to the base period and the phase shift time delay.
摘要翻译：提供电动机控制处理器用于多个可变频率控制电动机的电动机相电流采样，并且包括模数（A / D）转换器和控制器。 A / D转换器具有多个模拟输入，并响应多个模拟输入产生数字输出信号。控制器耦合到A / D转换器，并确定多个可变频率控制的电动机中的第一个的最大期望开关频率。控制器还响应于最大期望的开关频率选择基准周期，并将相移时间延迟定义为基本周期的一部分，以便控制器可以控制A / D转换器的多个模拟输入以对电机相位电流进行采样在由控制器响应于基准周期和相移时间延迟确定的采样时间的多个可变频率控制电动机中的每一个。

56. 发明授权

US07839108B2 Electric motor stator winding temperature estimation 有权
标题翻译：电动机定子绕组温度估算
公开(公告)号：US07839108B2
公开(公告)日：2010-11-23
申请号：US12019395
申请日：2008-01-24
申请人： Nitinkumar R. Patel , Yo Chan Son , Silva Hiti , Steven E. Schulz
发明人： Nitinkumar R. Patel , Yo Chan Son , Silva Hiti , Steven E. Schulz
IPC分类号： H02H5/04
CPC分类号： H02H7/0852
摘要： A temperature estimation controller and methods are provided for controlling a torque command to prevent overheating of one or more of a plurality of phases of a permanent magnet motor. The temperature estimation controller includes a low speed temperature estimation module, a transition module and a temperature dependent torque command derater block. The low speed temperature estimation module determines a stator temperature of each of a plurality of phases of the permanent magnet motor in response to first thermal impedances measured for each of the plurality of phases with respect to a thermal neutral. The transition module is coupled to the low speed temperature estimation module and outputs the stator temperature of each of a plurality of phases of the permanent magnet motor as determined by the low speed temperature estimation module when a detected speed of the permanent magnet motor is less than a first predetermined speed. The temperature dependent torque command derater block is coupled to the transition module and derates the torque command in response to the stator temperature of one or more of the plurality of phases.
摘要翻译：提供了一种用于控制转矩指令以防止永磁电动机的多相中的一个或多个相的过热的温度估计控制器和方法。温度估计控制器包括低速温度估计模块，过渡模块和与温度相关的转矩指令减排模块。低速温度估计模块响应于相对于热中性点对多个相中的每一个测量的第一热阻而确定永磁电动机的多相的每个相的定子温度。当所述永磁电动机的检测速度小于所述低速温度估计模块时，所述过渡模块耦合到所述低速温度估计模块，并且输出由所述低速温度估计模块确定的所述永磁电动机的多个相中的每一个的定子温度。第一预定速度。与温度相关的转矩指令转换器模块耦合到转换模块，并响应于多个相位中的一个或多个的定子温度降低转矩指令。

57. 发明授权

US07659688B2 Method and system for resolver alignment in electric motor system 有权
标题翻译：电动机系统中旋转变压器对准的方法和系统
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。

58. 发明授权

US07652443B2 Method and system for controlling a power inverter in electric drives 有权
标题翻译：用于控制电力变频器中的电力变换器的方法和系统
公开(公告)号：US07652443B2
公开(公告)日：2010-01-26
申请号：US11923270
申请日：2007-10-24
申请人： Steven E. Schulz , Stephen T. West , Brian A. Welchko , Silva Hiti
发明人： Steven E. Schulz , Stephen T. West , Brian A. Welchko , Silva Hiti
IPC分类号： H02P7/00
CPC分类号： B60L15/08 , B60L2240/421 , B60L2240/423 , B60L2240/526 , B60L2270/14 , Y02T10/645
摘要： Methods and systems for controlling a power inverter in an electric drive system of an automobile 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.
摘要翻译：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。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。

59. 发明申请

US20080278106A1 APPARATUS, SYSTEM, AND METHOD FOR SIMULATING OUTPUTS OF A RESOLVER TO TEST MOTOR-RESOLVER SYSTEMS 有权
标题翻译：用于模拟分析仪对测试电机分解系统的输出的装置，系统和方法
公开(公告)号：US20080278106A1
公开(公告)日：2008-11-13
申请号：US11747548
申请日：2007-05-11
申请人： David T. Fu , Wei D. Wang , Steven E. Schulz
发明人： David T. Fu , Wei D. Wang , Steven E. Schulz
IPC分类号： G03B27/42
CPC分类号： G03B27/42 , G01D5/204
摘要： An apparatus, system, and method are provided for simulating outputs of a resolver. One apparatus includes an adjustable sine waveform generator for simulating first and second sine wave signals, and an adjustable cosine waveform generator for simulating first and cosine wave signals. The apparatus also includes an adjustable waveform generator and an adjustable gain circuit coupled to the sine waveform generator and cosine waveform generator. The system includes a device simulating a resolver coupled to a motor controller. The device includes an adjustable sine waveform generator and an adjustable cosine waveform generator coupled to an adjustable waveform generator and an adjustable gain circuit. One method includes transmitting a signal simulating at least one resolver fault condition to a motor controller to determine if the motor controller detects the fault condition(s). If the motor controller fails to detect the fault condition(s) and/or transmit an error message, the motor controller is malfunctioning.
摘要翻译：提供了一种用于模拟分解器的输出的装置，系统和方法。一种装置包括用于模拟第一和第二正弦波信号的可调正弦波形发生器和用于模拟第一和余弦波信号的可调余弦波形发生器。该装置还包括可调波形发生器和耦合到正弦波形发生器和余弦波形发生器的可调增益电路。该系统包括模拟与马达控制器耦合的旋转变压器的装置。该装置包括可调正弦波形发生器和耦合到可调波形发生器和可调增益电路的可调余弦波形发生器。一种方法包括将模拟至少一个分解器故障状况的信号发送到电动机控制器以确定电动机控制器是否检测到故障状况。如果电机控制器无法检测到故障状况和/或发送错误信息，则电机控制器发生故障。

60. 发明申请

US20080272732A1 METHOD AND SYSTEM FOR MOTOR CONTROL WITH DELAY COMPENSATION 有权
标题翻译：具有延迟补偿的电机控制方法与系统
公开(公告)号：US20080272732A1
公开(公告)日：2008-11-06
申请号：US11743718
申请日：2007-05-03
申请人： Steven E. Schulz , Nitinkumar R. Patel , Bonho Bae , Stephen T. West
发明人： Steven E. Schulz , Nitinkumar R. Patel , Bonho Bae , Stephen T. West
IPC分类号： H02P27/04
CPC分类号： H02P23/0004
摘要： Methods and systems are provided for controlling an electric machine via an inverter while compensating for one or more hardware delays. The method includes receiving a control signal, producing a first sampling signal based on the control signal, and adjusting the sampling signal to compensate for a first delay of the one or more hardware delays. The inverter is operable to produce a voltage signal based on the control signal, and the electric machine is operable to produce a current based on the voltage signal. A sampling of the current is performed based on the first sampling signal.
摘要翻译：提供了用于通过反相器控制电机的方法和系统，同时补偿一个或多个硬件延迟。该方法包括接收控制信号，基于控制信号产生第一采样信号，以及调整采样信号以补偿一个或多个硬件延迟的第一延迟。逆变器可操作以基于控制信号产生电压信号，并且电机可操作以基于电压信号产生电流。基于第一采样信号执行电流的采样。

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