专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07042186B2 Decoupling a harmonic signal from a signal path 失效
标题翻译：从信号路径去耦合一个谐波信号
公开(公告)号：US07042186B2
公开(公告)日：2006-05-09
申请号：US10720626
申请日：2003-11-24
申请人： Constantin C. Stancu , Silva Hiti , Steven E. Schulz , Nitinkumar R. Patel
发明人： Constantin C. Stancu , Silva Hiti , Steven E. Schulz , Nitinkumar R. Patel
IPC分类号： G05B11/36
CPC分类号： H02P6/185 , H02P6/183 , H02P21/18 , H02P2203/11 , H02P2207/01
摘要： A method for decoupling a harmonic signal from an input signal wherein the harmonic signal is harmonic relative to a signal other than the input signal. An angular position of the other signal is multiplied by a value representing the harmonic to obtain an angular position multiple. A harmonic decoupling block uses the angular position multiple to obtain correction signals representing the harmonic signal, and subtracts the correction signals from the input current to decouple the harmonic signal from the input signal. This method is useful for decoupling unwanted harmonics from currents into which high-frequency signals have been injected for control of electric motors.
摘要翻译：一种用于将谐波信号与输入信号去耦的方法，其中谐波信号是相对于输入信号以外的信号的谐波。将另一信号的角位置乘以表示谐波的值，以获得角位置倍数。谐波去耦块使用角位置倍数来获得表示谐波信号的校正信号，并从输入电流中减去校正信号，以将谐波信号与输入信号去耦。该方法对于将不想要的谐波与已注入高频信号的电流去耦以控制电动机是有用的。

22. 发明授权

US07595600B2 Method and system for torque control in permanent magnet machines 有权
标题翻译：永磁机械转矩控制方法与系统
公开(公告)号：US07595600B2
公开(公告)日：2009-09-29
申请号：US11759266
申请日：2007-06-07
申请人： Nitinkumar R. Patel , Brian A Welchko , Bonho Bae , Steven E. Schulz
发明人： Nitinkumar R. Patel , Brian A Welchko , Bonho Bae , Steven E. Schulz
IPC分类号： H02P7/00
CPC分类号： H02P21/141 , H02P21/20
摘要： Methods and systems are provided for controlling permanent magnet machines. The method includes determining a maximum torque of the PM machine based on an error between a commanded d-axis flux and an estimated d-axis flux of the PM machine, and adjusting a torque command based on the maximum torque. The error associated with a variation between a current temperature and a nominal temperature of the PM machine.
摘要翻译：提供用于控制永磁机的方法和系统。该方法包括基于指令的d轴磁通与PM机的估计d轴磁通之间的误差来确定PM机的最大转矩，以及基于最大转矩来调整转矩指令。与PM机的当前温度和标称温度之间的变化相关的误差。

23. 发明授权

US07015667B2 Current regulation for a field weakening motor control system and method 有权
标题翻译：减弱电机控制系统和方法的电流调节
公开(公告)号：US07015667B2
公开(公告)日：2006-03-21
申请号：US10808082
申请日：2004-03-24
申请人： Nitinkumar R. Patel , Steven E. Schulz
发明人： Nitinkumar R. Patel , Steven E. Schulz
IPC分类号： H02P7/00
CPC分类号： H02P21/08
摘要： A control system and method for an electric machine includes a first calculation module that receives a modified torque command and a calculated stator flux command and that generates first and second current commands and first and second voltage commands. A voltage magnitude calculation module generates a voltage magnitude based the first and second voltage commands. A reference voltage calculator module generates a reference voltage based on a DC link voltage, an angular stator velocity and the first and second current commands. A flux weakening module generates the calculated flux command based on the angular stator velocity, the reference voltage and the voltage magnitude.
摘要翻译：一种用于电机的控制系统和方法包括：第一计算模块，其接收修改的转矩指令和计算的定子磁通指令，并产生第一和第二电流指令以及第一和第二电压指令。电压幅度计算模块基于第一和第二电压命令产生电压幅度。参考电压计算器模块基于DC链路电压，角定子速度和第一和第二电流命令产生参考电压。磁通弱化模块基于角定子速度，参考电压和电压幅度产生计算的磁通指令。

24. 发明授权

US06841969B1 Flux observer in a sensorless controller for permanent magnet motors 有权
标题翻译：永磁电机无传感器控制器中的磁通观察器
公开(公告)号：US06841969B1
公开(公告)日：2005-01-11
申请号：US10669918
申请日：2003-09-24
申请人： Steven E. Schulz , Nitinkumar R. Patel
发明人： Steven E. Schulz , Nitinkumar R. Patel
IPC分类号： H02P21/14 , H02P6/18
CPC分类号： H02P21/13 , H02P21/24 , H02P2207/05
摘要： A control system includes a field oriented controller that receives a torque command and that generates phase voltages for an electric machine. A first transformation module receives stator terminal currents and generates d-axis and q-axis stationary frame currents. An open loop flux observer receives d-axis and q-axis stationary frame voltage commands and the d and q-axis stationary frame currents. The open loop flux observer includes a vector cross product calculator that generates an error signal that is proportional to an angular difference between an estimated stator flux and a computed stator flux and a proportional integral controller that generates an estimated rotor angular position based on the error signal. A second transformation module receives the d-axis and q-axis stationary frame currents and the estimated rotor angular position and generates d-axis and q-axis synchronous reference frame feedback currents that are output to the field oriented controller.
摘要翻译：控制系统包括磁场定向控制器，其接收转矩指令并产生电机的相电压。第一变换模块接收定子端电流并产生d轴和q轴静止的电流。开环通量观测器接收d轴和q轴静止电压指令以及d轴和q轴静止电流。开环通量观察器包括矢量交叉乘积计算器，其生成与估计的定子通量和计算出的定子通量之间的角度差成比例的误差信号，以及基于误差信号产生估计的转子角位置的比例积分控制器。第二变换模块接收d轴和q轴静止帧电流和估计的转子角位置，并产生输出到磁场定向控制器的d轴和q轴同步参考帧反馈电流。

25. 发明授权

US08340848B2 Method and system for sensorless control of an electric motor 有权
标题翻译：电动机无传感器控制的方法和系统
公开(公告)号：US08340848B2
公开(公告)日：2012-12-25
申请号：US11947501
申请日：2007-11-29
申请人： Yo Chan Son , Nitinkumar R. Patel , Steven E. Schulz
发明人： Yo Chan Son , Nitinkumar R. Patel , Steven E. Schulz
IPC分类号： B60L9/00
CPC分类号： H02P21/13 , H02P21/141 , H02P21/24
摘要： Methods and systems for controlling an electric motor are provided. A signal comprising at least first and second cycles is provided to the electric motor. A first flux value for the electric motor associated with the first cycle of the signal is calculated. A second flux value for the electric motor associated with the second cycle of the signal is calculated based on the first flux value.
摘要翻译：提供了用于控制电动机的方法和系统。包括至少第一和第二循环的信号被提供给电动机。计算与信号的第一周期相关的电动机的第一通量值。基于第一通量值计算与信号的第二周期相关联的电动机的第二通量值。

26. 发明授权

US07679309B2 Method and system for motor control with delay compensation 有权
标题翻译：延时补偿电机控制方法及系统
公开(公告)号：US07679309B2
公开(公告)日：2010-03-16
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： H02P23/00
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。

27. 发明授权

US07659684B2 Method and system for operating a motor to avoid selected pulse ratio values 有权
标题翻译：用于操作电机以避免选定脉冲比值的方法和系统
公开(公告)号：US07659684B2
公开(公告)日：2010-02-09
申请号：US11738854
申请日：2007-04-23
申请人： Nitinkumar R. Patel , Bonho Bae , Steven E. Schulz
发明人： Nitinkumar R. Patel , Bonho Bae , Steven E. Schulz
IPC分类号： G05B11/01
CPC分类号： B60L3/12 , H02P23/04 , H02P27/08 , Y02T10/642
摘要： A method and system for operating a motor are provided. Power is provided to the motor through at least one switch operating at a first switching frequency. A pulse ratio of the motor is calculated based on the first switching frequency. The at least one switch is operated at a second switching frequency if the calculated pulse ratio is less than a first pulse ratio value and greater than a second pulse ratio value.
摘要翻译：提供了一种用于操作电动机的方法和系统。通过至少一个以第一开关频率工作的开关将电力提供给电动机。基于第一开关频率计算电动机的脉冲比。如果所计算的脉冲比小于第一脉冲比值且大于第二脉冲比值，则至少一个开关以第二开关频率工作。

28. 发明授权

US07576500B2 Method and system for operating a motor to reduce noise in an electric vehicle 有权
标题翻译：用于操作电动机以减少电动车辆噪声的方法和系统
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。

29. 发明申请

US20080303475A1 METHOD AND SYSTEM FOR TORQUE CONTROL IN PERMANENT MAGNET MACHINES 有权
标题翻译：永磁机械扭矩控制方法与系统
公开(公告)号：US20080303475A1
公开(公告)日：2008-12-11
申请号：US11759266
申请日：2007-06-07
申请人： Nitinkumar R. Patel , Brian A. Welchko , Bonho Bae , Steven E. Schulz
发明人： Nitinkumar R. Patel , Brian A. Welchko , Bonho Bae , Steven E. Schulz
IPC分类号： G05B19/042 , G05D23/19
CPC分类号： H02P21/141 , H02P21/20
摘要： Methods and systems are provided for controlling permanent magnet machines. The method includes determining a maximum torque of the PM machine based on an error between a commanded d-axis flux and an estimated d-axis flux of the PM machine, and adjusting a torque command based on the maximum torque. The error associated with a variation between a current temperature and a nominal temperature of the PM machine.
摘要翻译：提供用于控制永磁机的方法和系统。该方法包括基于指令的d轴磁通与PM机的估计d轴磁通之间的误差来确定PM机的最大转矩，以及基于最大转矩来调整转矩指令。与PM机的当前温度和标称温度之间的变化相关的误差。

30. 发明申请

US20080298785A1 METHOD AND SYSTEM FOR OPERATING A MOTOR TO REDUCE NOISE IN AN ELECTRIC VEHICLE 有权
标题翻译：用于操作电动机以减少电动车噪声的方法和系统
公开(公告)号：US20080298785A1
公开(公告)日：2008-12-04
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： H02P7/285
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式