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1. 发明授权

US08867181B2 Protection of motor drive systems from current sensor faults 有权
标题翻译：保护电机驱动系统免受电流传感器故障的影响
公开(公告)号：US08867181B2
公开(公告)日：2014-10-21
申请号：US13244052
申请日：2011-09-23
申请人： S. M. Nayeem Hasan , Steven E. Schulz , David P. Tasky
发明人： S. M. Nayeem Hasan , Steven E. Schulz , David P. Tasky
IPC分类号： H02H5/04 , H02H3/00 , G01R31/34 , H02P21/00 , H02H7/00 , H02P29/02
CPC分类号： H02P29/022 , H02H7/00 , H02P21/22 , H02P29/0243 , H02P29/032
摘要： Methods and apparatus are provided for detecting a phase current sensor fault in a multi-phase electrical motor. The method comprises, receiving an input torque command T* and measuring a set of feedback signals of the motor including a phase current Ix for each of the phases of the motor, generating direct and quadrature command phase currents Id*, Iq* for the motor corresponding to a value of the input torque command T*, determining a total command current Is=[(Iq*)2+(Id*)2]½, generating a negative sequence current Ineg, where for three phases Ineg=(⅓)[Ia+(α2)Ib+(α)Ic], where α=ej2π/3, combining Ineg and Is to provide a normalized negative sequence current Inn=Ineg/Is, comparing the normalized negative sequence current Inn to a predetermined threshold value INN* to determine the presence of a phase current sensor fault, and executing a control action when Inn>INN*.
摘要翻译：提供了用于检测多相电动机中的相电流传感器故障的方法和装置。该方法包括：接收输入转矩指令T *并测量电动机的一组反馈信号，该电动机的每个相位包括相电流Ix，为电动机产生直接和正交指令相电流Id *，Iq * 对应于输入转矩指令T *的值，确定总指令电流Is = [（Iq *）2+（Id *）2] 1/2，产生负序电流Ineg，其中三相Ineg =（1/3） [Ia +（α2）Ib +（α）Ic]，其中α= ej2＆pgr; / 3，组合Ineg和Is，以提供归一化的负序电流Inn = Ineg / Is，将归一化负序电流Inn与预定阈值INN *确定相电流传感器故障的存在，并在Inn> INN *时执行控制动作。

2. 发明授权

US09566985B2 Method and apparatus for monitoring a resolver in a torque machine 有权
标题翻译：用于在扭矩机中监测旋转变压器的方法和装置
公开(公告)号：US09566985B2
公开(公告)日：2017-02-14
申请号：US13022854
申请日：2011-02-08
申请人： Wei D. Wang , Bon Ho Bae , Leah Dunbar , Kevin P. Houle , William R. Cawthorne , Andrew M. Zettel , Hanne Buur , Steven E. Schulz
发明人： Wei D. Wang , Bon Ho Bae , Leah Dunbar , Kevin P. Houle , William R. Cawthorne , Andrew M. Zettel , Hanne Buur , Steven E. Schulz
IPC分类号： B60W20/00 , B60W50/038 , B60W50/02 , B60L3/00
CPC分类号： B60W20/50 , B60L3/0038 , B60W10/08 , B60W20/00 , B60W50/0205 , B60W50/0225 , B60W50/038 , B60W50/04 , B60W2510/081 , B60W2710/083 , B60W2710/085 , Y02T10/7258
摘要： A method for monitoring an electrically-powered torque machine configured to generate torque in a hybrid powertrain system includes monitoring signal outputs of a resolver configured to monitor rotational position of the torque machine. Upon detecting a fault warning state associated with the signal outputs of the resolver, a motor torque capacity of the torque machine is derated. Upon a clearing of the fault warning state, a torque ramp-up state to increase the motor torque capacity of the torque machine is executed. Notice of an incidence of a fault associated with the signal outputs of the resolver is provided only when the motor torque capacity fails to achieve a threshold motor torque capacity within a threshold recovery time period while executing the torque ramp-up state.
摘要翻译：一种用于监视配置成在混合动力系统中产生转矩的电动力矩机的方法，包括：监视被配置为监测转矩机的转动位置的旋转变压器的信号输出。在检测到与解算器的信号输出相关联的故障警告状态时，扭矩机的电动机转矩容量降低。在清除故障警告状态时，执行用于增加扭矩机的电动机转矩容量的转矩上升状态。仅当电机转矩容量在执行转矩提升状态时在阈值恢复时间段内达不到阈值电动机转矩容量时才提供与解算器的信号输出相关的故障的发生率的注意事项。

3. 发明授权

US08634976B2 Systems and methods for managing torque capability in electric motor systems 有权
标题翻译：用于管理电动机系统扭矩能力的系统和方法
公开(公告)号：US08634976B2
公开(公告)日：2014-01-21
申请号：US12715081
申请日：2010-03-01
申请人： Brian A. Welchko , Nitinkumar R. Patel , Leah Dunbar , William R. Cawthorne , Steven E. Schulz
发明人： Brian A. Welchko , Nitinkumar R. Patel , Leah Dunbar , William R. Cawthorne , Steven E. Schulz
IPC分类号： B60L9/00
CPC分类号： B60L15/20 , H02P29/032 , H02P29/60 , Y02T10/645 , Y02T10/7275 , Y10T477/23
摘要： A method for operating an electric motor is provided. The method includes receiving a torque request; determining long term torque capabilities and short term torque capabilities of the electric motor; generating a torque command based on the torque request and at least one of the long term torque capabilities or the short term torque capabilities; and controlling the electric motor in accordance with the torque command.
摘要翻译：提供了一种用于操作电动机的方法。该方法包括接收扭矩请求; 确定电动机的长期扭矩能力和短期扭矩能力; 基于所述转矩请求和所述长期扭矩能力或短期扭矩能力中的至少一个产生转矩指令; 并根据转矩指令控制电动机。

4. 发明授权

US08583265B1 Methods, systems and apparatus for computing a voltage advance used in controlling operation of an electric machine 有权
标题翻译：用于计算用于控制电机操作的电压提前的方法，系统和装置
公开(公告)号：US08583265B1
公开(公告)日：2013-11-12
申请号：US13477281
申请日：2012-05-22
申请人： Steven E. Schulz , Michael J. Grimmer , Konstantin S. Majarov , William R. Cawthorne
发明人： Steven E. Schulz , Michael J. Grimmer , Konstantin S. Majarov , William R. Cawthorne
IPC分类号： G05B21/02
CPC分类号： H02P23/009 , H02P6/10 , H02P6/182 , H02P21/0089 , H02P25/098
摘要： Embodiments of the present disclosure relate to methods, systems and apparatus for computing a voltage advance used in controlling operation of an electric machine.
摘要翻译：本公开的实施例涉及用于计算用于控制电机操作的电压提前的方法，系统和装置。

5. 发明授权

US08487575B2 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：US08487575B2
公开(公告)日：2013-07-16
申请号：US12568002
申请日：2009-09-28
申请人： Chia-Chou Yeh , Nitinkumar R. Patel , Yo Chan Son , Steven E. Schulz
发明人： Chia-Chou Yeh , Nitinkumar R. Patel , Yo Chan Son , Steven E. Schulz
IPC分类号： G05D23/00
CPC分类号： H02P6/08 , G01R31/343 , H02P29/664
摘要： A temperature estimation controller and methods are provided for estimating stator winding temperature over a full range of motor operating speeds. In one implementation, the angular velocity of a motor is determined along with a total power loss for each phase of said motor. The total power loss in each phase comprises stator winding power loss and a core power loss. Stator winding temperatures for each phase of motor can then estimated based on the total power loss in that phase, and a combined thermal impedance for that phase. The combined thermal impedance comprises a first thermal impedance between the stator winding and the stator core, and a second thermal impedance between the stator core and the motor coolant.
摘要翻译：提供了一种温度估计控制器和方法，用于在整个电机运行速度范围内估计定子绕组温度。在一个实施方式中，确定电动机的角速度以及所述电动机的每相的总功率损耗。每相中的总功率损耗包括定子绕组功率损耗和铁芯功率损耗。然后可以根据该阶段的总功率损耗和该阶段的组合热阻抗来估计电机各相的定子绕组温度。组合的热阻抗包括定子绕组和定子铁心之间的第一热阻抗，以及定子铁芯和电动机冷却剂之间的第二热阻抗。

6. 发明授权

US08482237B2 Motor temperature estimation based on thermal model 有权
标题翻译：基于热模型的电机温度估计
公开(公告)号：US08482237B2
公开(公告)日：2013-07-09
申请号：US13039347
申请日：2011-03-03
申请人： Daniel J. Berry , Pankaj Mithal , Paul F. Turnbull , Peter J. Savagian , Chia-Chou Yeh , Steven E. Schulz
发明人： Daniel J. Berry , Pankaj Mithal , Paul F. Turnbull , Peter J. Savagian , Chia-Chou Yeh , Steven E. Schulz
IPC分类号： H02H7/08
CPC分类号： B60L3/0061 , B60L2220/12 , B60L2220/14 , B60L2220/18 , B60L2240/36 , B60L2240/421 , B60L2240/423 , B60L2240/425 , B60L2260/44 , G01K7/42 , G01K2205/00 , Y02T10/642
摘要： A vehicle includes a power source, a motor, and a computing device. The power source provides electrical energy to the motor, and the motor generates rotational motion from the electrical energy received. The computing device is configured to estimate a temperature of the motor in real time based at least in part on a thermal model of the motor. The thermal model includes a plurality of nodes and at least one thermal resistance. Each node represents a region of the motor and each thermal resistance represents a heat transfer path between at least two of the nodes. A method includes solving one or more energy balance equations to determine a temperature change at each node and estimating the temperature of the motor in real time based at least in part on the temperature change at each node and at least one of the thermal resistances in the thermal model.
摘要翻译：车辆包括电源，电动机和计算装置。电源向电动机提供电能，并且电动机从接收的电能产生旋转运动。计算设备被配置为至少部分地基于电动机的热模型实时地估计电动机的温度。热模型包括多个节点和至少一个热阻。每个节点表示电动机的区域，每个热阻表示至少两个节点之间的热传递路径。一种方法包括解决一个或多个能量平衡方程以确定每个节点处的温度变化并且至少部分地基于每个节点处的温度变化以及至少一个热电阻来实时估计电动机的温度热模型。

7. 发明授权

US08185342B2 Estimating rotor angular position and velocity and verifying accuracy of position sensor outputs 有权
标题翻译：估算转子角位置和速度，验证位置传感器输出的精度
公开(公告)号：US08185342B2
公开(公告)日：2012-05-22
申请号：US12541734
申请日：2009-08-14
申请人： Chia-Chou Yeh , Brian A. Welchko , Steven E. Schulz
发明人： Chia-Chou Yeh , Brian A. Welchko , Steven E. Schulz
IPC分类号： G01P3/00
CPC分类号： H02P6/16 , H02P6/15 , H02P6/18
摘要： Methods, system and apparatus are provided for estimating rotor angular position and angular velocity during a position sensor fault, and for verifying the accuracy or inaccuracy of a position sensor's outputs based on the estimated rotor angular position and angular velocity of the rotor following a position sensor fault.
摘要翻译：提供了用于在位置传感器故障期间估计转子角位置和角速度的方法，系统和装置，并且用于基于位置传感器跟随位置传感器的转子的估计的转子角位置和角速度来验证位置传感器的输出的准确性或不准确度故障。

8. 发明授权

US08100799B2 Method and system for controlling power inverters in electric drives of vehicles with two-mode transmissions 有权
标题翻译：用于控制双模变速器车辆电动变频器的方法和系统
公开(公告)号：US08100799B2
公开(公告)日：2012-01-24
申请号：US11853884
申请日：2007-09-12
申请人： Brian A. Welchko , Steven E. Schulz , Silva Hiti
发明人： Brian A. Welchko , Steven E. Schulz , Silva Hiti
IPC分类号： F16H3/72
CPC分类号： F16H3/728 , B60K6/445 , B60L11/123 , B60L11/14 , B60L15/025 , B60L2200/26 , F16H3/66 , F16H2037/0866 , F16H2037/102 , F16H2037/104 , F16H2037/106 , F16H2200/0043 , F16H2200/201 , F16H2200/2041 , Y02T10/6217 , Y02T10/6239 , Y02T10/643 , Y02T10/646 , Y02T10/7005 , Y02T10/7077 , Y02T10/7258
摘要： Methods and systems for driving an automobile are provided. The system includes a prime mover power source and a two-mode, compound-split, electro-mechanical transmission, including first and second motors, coupled to the prime mover power source, a power inverter coupled to the first and second motors, and a processor coupled to the first and second motors and the power inverter. The processor is configured to modify a signal controlling the power inverter utilizing a first voltage distortion compensation method if a modulation index of the signal is less than a first modulation index value and modify the signal utilizing a second voltage distortion compensation method if the modulation index is at least equal to the first modulation index value.
摘要翻译：提供了用于驾驶汽车的方法和系统。该系统包括原动机电源和耦合到原动机电源的耦合到第一和第二电动机的电力逆变器的双模式复合分裂机电变速器，包括第一和第二电动机，以及处理器耦合到第一和第二电动机和电力逆变器。处理器被配置为如果信号的调制指数小于第一调制指数值，则使用第一电压失真补偿方法来修改控制功率逆变器的信号，并且如果调制指数为至少等于第一调制指数值。

9. 发明授权

US07999496B2 Method and apparatus to determine rotational position of an electrical machine 有权
标题翻译：确定电机旋转位置的方法和装置
公开(公告)号：US07999496B2
公开(公告)日：2011-08-16
申请号：US11743901
申请日：2007-05-03
申请人： Sean E Gleason , Steven E. Schulz , Patrick M. Prihoda
发明人： Sean E Gleason , Steven E. Schulz , Patrick M. Prihoda
IPC分类号： H02P6/06
CPC分类号： B60W20/15 , B60K1/02 , B60K6/26 , B60K6/365 , B60K6/445 , B60K6/547 , B60L2240/421 , B60L2240/441 , B60L2240/486 , B60W10/02 , B60W10/06 , B60W10/08 , B60W20/00 , B60W2510/0638 , B60W2510/08 , B60W2510/081 , B60W2510/104 , B60W2540/10 , B60W2540/12 , B60W2540/16 , B60W2550/12 , B60W2710/027 , B60W2710/0666 , F16H2037/0866 , F16H2037/102 , F16H2037/104 , F16H2037/106 , H02P21/18 , Y02T10/6239 , Y02T10/6286 , Y02T10/643
摘要： A control system and method to determine position of a rotor relative to a stator for a synchronous multipole electrical machine is presented, including one for application on a fuel/electric hybrid powertrain for a vehicle. The machine includes a stator, a rotor, and a rotor position sensing mechanism. The control system controls the electrical machine, in conjunction with an electrical storage device and an inverter, using algorithms and calibrations which derive a rotor position based upon a sensorless position sensing technique, and determine an offset from a sensed rotor position. Electrical output from the inverter to the machine is controlled based the offset, which is stored non-volatile memory. A rotor position is derived based upon a sensorless position sensing technique during initial machine operation after startup of the machine, and includes operation in a torque-generative mode and in an electrical energy-generative mode.
摘要翻译：提出了一种用于确定转子相对于用于同步多极电机的定子的位置的控制系统和方法，包括用于车辆的燃料/电动混合动力传动系的应用的控制系统和方法。该机器包括定子，转子和转子位置感测机构。控制系统结合电存储装置和逆变器，使用基于无传感器位置检测技术导出转子位置的算法和校准来控制电机，并且确定从感测到的转子位置的偏移。从变频器到机器的电气输出是基于偏移来控制的，这是存储的非易失性存储器。基于在机器起动之后的初始机器操作期间的无传感器位置检测技术导出转子位置，并且包括以转矩生成模式和电能生成模式的操作。

10. 发明申请

US20110187304A1 MOTOR PHASE WINDING FAULT DETECTION METHOD AND APPARATUS 有权
标题翻译：电机相绕组故障检测方法及装置
公开(公告)号：US20110187304A1
公开(公告)日：2011-08-04
申请号：US12698221
申请日：2010-02-02
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
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 negative 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：归一化负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。

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