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71. 发明授权

US06359413B1 Current control system for a switched reluctance motor 失效
标题翻译：开关磁阻电机的电流控制系统
公开(公告)号：US06359413B1
公开(公告)日：2002-03-19
申请号：US09560339
申请日：2000-04-28
申请人： Steven E. Schulz , Khwaja M. Rahman
发明人： Steven E. Schulz , Khwaja M. Rahman
IPC分类号： H02P700
CPC分类号： H02P25/08 , H02P25/0925
摘要： A current control system for a switched reluctance motor that eliminates the effects of back EMF produced by such motor on the current control loop. The control system includes a current regulator that receives a current reference signal indicative of the desired output of the motor and a motor current signal indicative of the current in at least one phase winding of the motor. The regulator produces an output signal in response to the difference between the current reference signal and the motor current signal. The output of the regulator is a duty cycle command. A back EMF decoupler provides a back EMF signal indicative of the back EMF created by the motor and adds the back EMF signal to the current regulator output signal to provide a back EMF decoupled duty cycle command signal. An inverter circuit switches on and off the voltage to at least one phase winding of the motor in accordance with the back EMF decoupled duty cycle command signal to control the motor current and operate the motor.
摘要翻译：一种用于开关磁阻电动机的电流控制系统，其消除了由电动机产生的反电动势对电流控制回路的影响。控制系统包括电流调节器，其接收指示电动机的期望输出的电流参考信号和指示电动机的至少一个相绕组中的电流的电动机电流信号。调节器响应于当前参考信号和电动机电流信号之间的差异产生输出信号。调节器的输出是占空比指令。反向EMF解耦器提供表示由电动机产生的反电动势的反向EMF信号，并将反电动势信号加到电流调节器输出信号上以提供反电动势解耦占空比指令信号。逆变器电路根据反电动势去耦占空比指令信号将电压接通和断开至电动机的至少一相绕组，以控制电动机电流并操作电动机。

72. 发明授权

US08446113B2 Vehicular electrical system and method for controlling an inverter during motor deceleration 有权
标题翻译：车辆电气系统和电机减速期间控制变频器的方法
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。

73. 发明授权

US08421391B2 Electric motor stator winding temperature estimation systems and methods 有权
标题翻译：电动机定子绕组温度估算系统及方法
公开(公告)号：US08421391B2
公开(公告)日：2013-04-16
申请号：US12778733
申请日：2010-05-12
申请人： Chia-Chou Yeh , Steven E. Schulz
发明人： Chia-Chou Yeh , Steven E. Schulz
IPC分类号： H02P7/00
CPC分类号： G01K7/42 , G01K13/08 , H02K11/20 , H02P29/64
摘要： An electric motor system includes an electric motor comprising a stator with windings and a rotor configured to operate at a motor speed; a cooling system comprising coolant configured to cool the rotor and the stator, the coolant having a coolant flow rate and a coolant temperature; an inverter module coupled to the electric motor and configured to provide current to the windings based on inverter control signals; a current regulated torque controller coupled to the inverter module and configured to generate the inverter control signals in response to a derated torque command; and a temperature estimation controller coupled to the current regulated torque controller and configured to generate the derated torque command based on an initial torque command and an estimated stator winding temperature. The temperature estimation controller is configured to estimate the estimated stator winding temperature based on the motor speed and the coolant flow rate.
摘要翻译：电动机系统包括电动机，其包括具有绕组的定子和被配置为以电动机速度操作的转子; 冷却系统，其包括被配置为冷却所述转子和所述定子的冷却剂，所述冷却剂具有冷却剂流速和冷却剂温度; 逆变器模块，其耦合到所述电动机并且被配置为基于逆变器控制信号向所述绕组提供电流; 耦合到所述逆变器模块并被配置为响应于降额转矩命令而产生所述逆变器控制信号的电流调节转矩控制器; 以及温度估计控制器，其耦合到所述电流调节转矩控制器，并且被配置为基于初始转矩指令和所估计的定子绕组温度来产生所述降额转矩指令。温度估计控制器被配置为基于电动机速度和冷却剂流量来估计定子绕组温度。

74. 发明授权

US08288886B2 Method and apparatus for avoiding electrical resonance in a vehicle having a shared high-voltage bus 有权
标题翻译：一种用于避免具有共享高压母线的车辆中的电共振的方法和装置
公开(公告)号：US08288886B2
公开(公告)日：2012-10-16
申请号：US12614464
申请日：2009-11-09
申请人： Mohammad N. Anwar , Steven E. Schulz , Stephan N. Green , James E. Tarchinski
发明人： Mohammad N. Anwar , Steven E. Schulz , Stephan N. Green , James E. Tarchinski
IPC分类号： B60L1/00 , B60L3/00 , H02G3/00
CPC分类号： H02M1/44 , B60K6/48 , B60L11/14 , B60L15/20 , B60L2270/145 , Y02T10/6221 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7275
摘要： A method for avoiding electrical resonance in a vehicle having a high-voltage (HV) direct current (DC) bus shared by a first and a second power electronic converter device, such as an air conditioning compressor module (ACCM) and a traction power inverter (TPIM), includes determining an impedance characteristic of the bus, defining resonance points for the bus, selecting lower and upper switching frequency boundaries for the TPIM, and preventing the TPIM from operating within a range defined by these boundaries. A vehicle includes the first and second power electronic converter device, e.g., the APPM and the TPIM, the shared HV DC, and a controller having the algorithm set forth above, wherein the controller is adapted for avoiding electrical resonance in the HV DC bus by executing the algorithm.
摘要翻译：一种用于避免车辆中具有由第一和第二电力电子转换器装置共享的高压（HV）直流（DC）总线的方法，例如空调压缩机模块（ACCM）和牵引电力逆变器（TPIM）包括确定总线的阻抗特性，为总线定义谐振点，为TPIM选择下限和上限开关频率边界，并防止TPIM在由这些边界限定的范围内运行。车辆包括第一和第二电力电子转换器装置，例如APPM和TPIM，共享HV DC，以及具有上述算法的控制器，其中控制器适于避免HV DC总线中的电共振，由执行算法。

75. 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。

76. 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。

77. 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。

78. 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。

79. 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。

80. 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。

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