专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US08062170B2 Thermal protection of an electric drive system 有权
标题翻译：电力驱动系统的热保护
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。

92. 发明申请

US20110231040A1 USE OF DISCONTINUOUS PULSE WIDTH MODULATION FOR AN INVERTER COUPLED TO AN ELECTRIC MOTOR FOR A VEHICLE 审中-公开
标题翻译：用于与车辆电动马达相连的逆变器的不连续脉冲宽度调制的使用
公开(公告)号：US20110231040A1
公开(公告)日：2011-09-22
申请号：US12725543
申请日：2010-03-17
申请人： Steven E. Schulz , Goro Tamai , Lan Wang , Karl Andrew Sime , Silva Hiti , Brian A. Welchko
发明人： Steven E. Schulz , Goro Tamai , Lan Wang , Karl Andrew Sime , Silva Hiti , Brian A. Welchko
IPC分类号： G06F19/00
CPC分类号： B60L15/2009 , B60L15/08 , Y02T10/645 , Y02T10/72 , Y02T10/7275
摘要： A method for controlling an inverter coupled to an electric motor for a vehicle includes generating a discontinuous PWM signal for the inverter when a torque of the electric motor and a speed of the electric motor are substantially zero, and when at least one predetermined vehicle condition is met.
摘要翻译：一种用于控制与车辆的电动机相连的逆变器的方法包括当电动机的转矩和电动机的速度基本上为零时产生用于逆变器的不连续的PWM信号，并且当至少一个预定的车辆状况是见面

93. 发明授权

US07952308B2 Method and apparatus for torque ripple reduction 有权
标题翻译：扭矩波动减小的方法和装置
公开(公告)号：US07952308B2
公开(公告)日：2011-05-31
申请号：US12098287
申请日：2008-04-04
申请人： Steven E. Schulz , John P. Miller , Khwaja M. Rahman , Soo-Yeol Lee
发明人： Steven E. Schulz , John P. Miller , Khwaja M. Rahman , Soo-Yeol Lee
IPC分类号： H02K29/06 , H02P6/10
CPC分类号： H02P21/06 , H02P6/10 , H02P27/08
摘要： Methods and apparatus are provided for reducing torque ripple in a permanent magnet motor system comprising a permanent magnet motor coupled to an inverter. The method comprises the steps of receiving a torque command, generating a torque ripple reduction signal in response to the torque command, modifying operational control signals in response to the torque ripple reduction signal to generate reduced ripple operational control signals, and providing the reduced ripple operational control signals to the inverter for control of the permanent magnet motor.
摘要翻译：提供了用于减少永磁电动机系统中的扭矩波动的方法和装置，其包括耦合到逆变器的永磁电动机。该方法包括以下步骤：接收转矩指令，响应于转矩指令产生转矩脉动降低信号，响应于转矩脉动降低信号修改运行控制信号以产生减小的纹波运算控制信号，并提供降低的纹波运算控制信号到变频器以控制永磁电动机。

94. 发明申请

US20110109256A1 FIBER OPTICALLY COMMUNICATED MOTOR TEMPERATURE AND POSITION SIGNALS 有权
标题翻译：光纤光通信电机温度和位置信号
公开(公告)号：US20110109256A1
公开(公告)日：2011-05-12
申请号：US12614807
申请日：2009-11-09
申请人： JEREMY B. CAMPBELL , JIM R. SWITZER , STEVEN E. SCHULZ
发明人： JEREMY B. CAMPBELL , JIM R. SWITZER , STEVEN E. SCHULZ
IPC分类号： H02K29/06 , H02K11/02 , H02K11/00
CPC分类号： B60L3/12 , B60L2240/421 , B60L2240/425 , B60L2270/147 , H02K11/20 , H02K11/21 , H02K11/25 , Y02T10/641 , Y02T10/642 , Y02T90/16
摘要： Methods and apparatus are provided for a controlling an electric motor that is at least partially disposed within a motor housing. The rotational speed and position of the electric motor are sensed, and a temperature of the electric motor is sensed. The sensor signals are converted to optical signals and are propagated in a fiber optic cable. The electric motor is controlled based, at least in part, on the propagated optical signals.
摘要翻译：提供了用于控制至少部分地设置在电动机壳体内的电动机的方法和装置。感测电动机的转速和位置，并感测电动机的温度。传感器信号被转换为光信号，并在光纤电缆中传播。电动机至少部分地基于传播的光信号进行控制。

95. 发明申请

US20110095713A1 METHOD AND SYSTEM FOR INITIATING OPERATION OF AN ELECTRIC MOTOR 有权
标题翻译：电动机起动方法及系统
公开(公告)号：US20110095713A1
公开(公告)日：2011-04-28
申请号：US12606839
申请日：2009-10-27
申请人： YO CHAN SON , JIHOON JANG , BRIAN A. WELCHKO , NITINKUMAR R. PATEL , STEVEN E. SCHULZ
发明人： YO CHAN SON , JIHOON JANG , BRIAN A. WELCHKO , NITINKUMAR R. PATEL , STEVEN E. SCHULZ
IPC分类号： H02P6/20 , B60W20/00
CPC分类号： H02P6/20
摘要： Methods and systems for controlling an electric motor are provided. The motor includes a plurality of windings. Each winding is coupled to a respective set of first and second switches. The first switch of each set of switches is simultaneously activated. Current flow through the plurality of windings is measured while the first switch of each set of switches is activated. The electric motor is controlled according to a first motor control method if the measured current is below a predetermined threshold. The electric motor is controlled according to a second motor control method if the measured current is above the predetermined threshold.
摘要翻译：提供了用于控制电动机的方法和系统。马达包括多个绕组。每个绕组耦合到相应的一组第一和第二开关。每组开关的第一个开关同时被激活。当每组开关的第一开关被激活时，测量通过多个绕组的电流。如果测量电流低于预定阈值，则根据第一电动机控制方法来控制电动机。如果测量的电流高于预定阈值，则根据第二电动机控制方法来控制电动机。

96. 发明申请

US20110089883A1 MOTOR PHASE WINDING FAULT DETECTION METHOD AND APPARATUS 审中-公开
标题翻译：电机相绕组故障检测方法及装置
公开(公告)号：US20110089883A1
公开(公告)日：2011-04-21
申请号：US12582733
申请日：2009-10-21
申请人： Mohammad N. Anwar , S.M. N. Hasan , Khwaja M. Rahman , Silva Hiti , Steven E. Schulz , Sean E. Gleason
发明人： Mohammad N. Anwar , S.M. N. Hasan , Khwaja M. Rahman , Silva Hiti , Steven E. Schulz , Sean E. Gleason
IPC分类号： G01R31/06
CPC分类号： G01R31/343 , G01R31/346
摘要： A method of detecting a phase winding fault in a multi-phase electric machine is executable via a motor controller, and includes measuring feedback signals of the machine, including each phase current, and generating reference phase voltages for each phase. The method includes calculating a predetermined voltage value using the feedback signals and reference phase voltages, and comparing the voltage value to a corresponding threshold to determine the fault. A control action is executed when the voltage value exceeds the corresponding threshold. The voltage value is one or more of: a ratio of a normalized zero sequence voltage to a modulation index, an RMS voltage for each phase, and total harmonic distortion of each phase current. An apparatus detects the fault, and includes a motor controller and an algorithm as set forth above. The apparatus may include a voltage inverter for generating a multi-phase alternating current output for powering the machine.
摘要翻译：检测多相电机中的相绕组故障的方法可通过马达控制器执行，并且包括测量机器的反馈信号，包括每个相电流，并产生每相的参考相电压。该方法包括使用反馈信号和参考相电压来计算预定电压值，并将电压值与相应的阈值进行比较以确定故障。当电压值超过相应的阈值时，执行控制动作。电压值是以下中的一个或多个：归一化零序电压与调制指数的比率，每相的RMS电压以及每个相电流的总谐波失真。一种装置检测故障，并包括如上所述的马达控制器和算法。该装置可以包括电压逆变器，用于产生用于为机器供电的多相交流输出。

97. 发明授权

US07880416B2 Low speed synchronous motor drive operation 有权
标题翻译：低速同步电机驱动运行
公开(公告)号：US07880416B2
公开(公告)日：2011-02-01
申请号：US11856504
申请日：2007-09-17
申请人： Steven E. Schulz , Goro Tamai , Scott Thompson
发明人： Steven E. Schulz , Goro Tamai , Scott Thompson
IPC分类号： H02P6/08
CPC分类号： H02P6/08 , H02P23/03 , H02P2209/07
摘要： Methods and apparatus are provided for providing a torque boost in an electric motor system at low speeds. The electric motor system comprises an alternating current (AC) synchronous electric motor, an inverter and a controller. The inverter is coupled to the AC synchronous electric motor and provides electric control therefore. The controller is coupled to the inverter and provides operational control signals thereto for operation of the electric motor. The controller includes a torque command gain block which modifies a torque command to generate a boosted torque signal in response to a detected speed of the electric motor, the torque command modified to define the boosted torque signal defined in accordance with a torque dependent scaling factor calculated in response to the torque command.
摘要翻译：提供了用于在电动机系统中以低速提供转矩提升的方法和装置。电动机系统包括交流（AC）同步电动机，逆变器和控制器。逆变器耦合到交流同步电动机，因此提供电力控制。控制器耦合到逆变器，并提供用于电动机的操作的操作控制信号。所述控制器包括转矩指令增益块，所述转矩指令增益块根据所述电动机的检测速度修正转矩指令以产生升压转矩信号，所述转矩指令被修改以限定根据所计算出的与转矩相关的标度因子所定义的升压转矩信号响应扭矩指令。

98. 发明申请

US20100320953A1 METHODS AND SYSTEMS FOR DIAGNOSING STATOR WINDINGS IN AN ELECTRIC MOTOR 有权
标题翻译：用于诊断电机中定子绕组的方法和系统
公开(公告)号：US20100320953A1
公开(公告)日：2010-12-23
申请号：US12486910
申请日：2009-06-18
申请人： CHIA-CHOU YEH , STEVEN E. SCHULZ , MOHAMMAD N. ANWAR
发明人： CHIA-CHOU YEH , STEVEN E. SCHULZ , MOHAMMAD N. ANWAR
IPC分类号： H02P6/12
CPC分类号： G01R31/343 , G01R31/024 , H02P21/06 , H02P29/02 , H02P29/0243
摘要： Systems and methods are provided for diagnosing stator windings in an electric motor operating under control of a current-regulating control loop. The current-regulating control loop is configured to provide a command voltage to the electric motor. The command voltage comprises a current-regulated voltage based on a difference between a commanded current and a measured current through the stator windings. The method comprises determining a negative sequence component of the command voltage, and identifying a fault condition when a characteristic of the negative sequence component is greater than a threshold value.
摘要翻译：提供了系统和方法，用于诊断在电流调节控制回路控制下工作的电动机中的定子绕组。电流调节控制回路被配置为向电动机提供指令电压。指令电压包括基于指令电流和通过定子绕组的测量电流之间的差的电流调节电压。所述方法包括确定所述指令电压的负序分量，以及当所述负序分量的特性大于阈值时识别故障状况。

99. 发明授权

US07679310B2 Method and system for controlling pulse width modulation in a power inverter in electric drives 有权
标题翻译：电力变频器中脉宽调制控制方法及系统
公开(公告)号：US07679310B2
公开(公告)日：2010-03-16
申请号：US11923293
申请日：2007-10-24
申请人： Steven E. Schulz , Brian A. Welchko , Silva Hiti
发明人： Steven E. Schulz , Brian A. Welchko , Silva Hiti
IPC分类号： H02P23/00
CPC分类号： B60L15/08 , B60L11/1803 , B60L15/007 , B60L15/20 , B60L2210/42 , B60L2240/421 , B60L2240/423 , H02P27/08 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/7241 , Y02T10/7275
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 either a commanded torque of the electric motor being above a first torque level, or a commanded speed of the electric motor being above a first speed level, controlling the power inverter with a discontinuous pulse width modulated (DPWM) signal to generate a modulated voltage waveform for driving the electric motor. Additionally, the embodiments control the power inverter by, responsive to both a commanded torque of the electric motor being below the first torque level, and a commanded speed of the electric motor being below the first speed level, controlling the power inverter with a continuous pulse width modulated (CPWM) signal to generate the modulated voltage waveform for driving the electric 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高于第一转矩水平或电动机的指令速度高于第一速度水平来控制功率逆变器，以不连续脉冲宽度控制功率逆变器调制（DPWM）信号以产生用于驱动电动机的调制电压波形。此外，这些实施例通过响应于电动机的指令转矩低于第一转矩水平和电动机的指令速度低于第一速度水平来控制功率逆变器，以连续脉冲宽度调制（CPWM）信号以产生用于驱动电动机的调制电压波形。

100. 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。

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