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71. 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。

72. 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。

73. 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。

74. 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。

75. 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。

76. 发明申请

US20080303470A1 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：US20080303470A1
公开(公告)日：2008-12-11
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： G05B11/32 , G05B21/02
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. The motor control processor comprises 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 that 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：提供电机控制处理器用于多个可变频率控制电动机的电机相电流采样。电动机控制处理器包括模数（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开关频率选择基准周期，并将相移时间延迟定义为基准周期的一部分，使得控制器可以控制A / D转换器的多个模拟输入以对电机相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。

77. 发明申请

US20080284387A1 BIDIRECTIONAL NO LOAD CONTROL WITH OVERSHOOT PROTECTION 有权
标题翻译：双向无负载控制与海洋保护
公开(公告)号：US20080284387A1
公开(公告)日：2008-11-20
申请号：US11748106
申请日：2007-05-14
申请人： KEMING CHEN , Steven E. Schulz
发明人： KEMING CHEN , Steven E. Schulz
IPC分类号： G05F1/00
CPC分类号： H02M1/32 , H02M3/33576 , H02M3/3378
摘要： A method of operating an isolated bi-directional dc/dc converter to provide voltage regulation at a no-load condition over a wide voltage range and also provide overshoot protection for the boost mode main switching transistors uses new boost mode drive waveforms. The new waveforms drive switches S2 and S4 to be turned off during boost mode and only S1 and S3 are switched to provide reverse energy flow at no-load. In boost mode, C1 and C2 provide overshoot protection caused by leakage inductance of the isolation transformer when boost mode drive transistors turn off during forward energy flow and provide stored energy for reverse energy flow during reverse energy flow periods used for voltage regulation in the boost mode. In buck mode, C1 and C2 provide soft switching for buck mode main switching transistors S2 and S4.
摘要翻译：一种隔离双向dc / dc转换器的运行方式，可在宽电压范围内的无负载状态下提供电压调节，并为升压模式主开关晶体管提供过冲保护，采用新的升压模式驱动波形。新的波形驱动开关S 2和S 4在升压模式下关闭，只有S 1和S 3被切换以在空载时提供反向能量流。在升压模式下，当升压模式驱动晶体管在正向能量流动期间关断时，C 1和C 2提供由隔离变压器的漏感引起的过冲保护，并在用于电压调节的反向能量流期间提供反向能量流的存储能量升压模式。在降压模式下，C 1和C 2为降压模式主开关晶体管S 2和S 4提供软开关。

78. 发明授权

US07211984B2 Start-up and restart of interior permanent magnet machines 有权
标题翻译：启动和重新启动内置永磁机
公开(公告)号：US07211984B2
公开(公告)日：2007-05-01
申请号：US10984269
申请日：2004-11-09
申请人： Nitinkumar R. Patel , Steven E. Schulz , Thomas P. O'Meara
发明人： Nitinkumar R. Patel , Steven E. Schulz , Thomas P. O'Meara
IPC分类号： H02P21/14
CPC分类号： H02P6/20 , F02N11/04 , F02N11/0859 , F02N2200/041 , H02P1/46 , H02P21/34
摘要： A method of starting a permanent magnet machine. A machine stator voltage in a stationary reference frame is sensed. An initial speed of a rotor of the machine is estimated based on the sensed voltage, and state variables of control algorithms are initialized based on the estimated initial speed. This method can provide smooth startup and/or restart at any speed.
摘要翻译：一种启动永磁机的方法。感测到静止参考系中的机器定子电压。基于感测到的电压来估计机器的转子的初始速度，并且基于估计的初始速度来初始化控制算法的状态变量。该方法可以以任何速度提供平稳的启动和/或重新启动。

79. 发明授权

US06979968B2 Method and system for managing processor execution time utilizing variable frequency switching 有权
标题翻译：使用可变频率切换管理处理器执行时间的方法和系统
公开(公告)号：US06979968B2
公开(公告)日：2005-12-27
申请号：US10676529
申请日：2003-10-01
申请人： James M. Nagashima , Thomas P. O'Meara , Nitinkumar R. Patel , Steven E. Schulz
发明人： James M. Nagashima , Thomas P. O'Meara , Nitinkumar R. Patel , Steven E. Schulz
IPC分类号： H02P3/00 , H02P5/00 , H02P23/00
CPC分类号： H02P23/0004
摘要： The present invention includes a method for managing processor execution time in a motor controller. The method includes receiving motor speed data, comparing the received motor speed data to predetermined motor speed ranges, determining a motor speed range based on the comparison, and modulating an inverter switching frequency of the motor controller processor based on the motor speed range. The step of receiving motor speed data may include receiving machine terminal information, processing the received machine terminal information utilizing a sensorless control algorithm, and determining motor speed data based on the processed information. The step of modulating the inverter switching frequency may include determining a modified inverter switching frequency value based on the determined motor speed range and providing the modified inverter switching frequency value to a processor control algorithm. In one embodiment, the processor control algorithm modifies the inverter switching frequency based on the modified inverter switching frequency value.
摘要翻译：本发明包括一种用于在马达控制器中管理处理器执行时间的方法。该方法包括接收电动机速度数据，将接收到的电动机速度数据与预定的电动机速度范围进行比较，基于比较确定电动机速度范围，以及基于电动机速度范围来调制电动机控制器处理器的逆变器开关频率。接收电动机速度数据的步骤可以包括接收机器终端信息，利用无传感器控制算法处理所接收的机器终端信息，以及基于处理的信息确定电动机速度数据。调制逆变器开关频率的步骤可以包括基于所确定的电动机速度范围确定修正的逆变器开关频率值，并将修改的逆变器开关频率值提供给处理器控制算法。在一个实施例中，处理器控制算法基于经修改的逆变器开关频率值来修改逆变器开关频率。

80. 发明授权

US06763622B2 Amplitude detection method and apparatus for high frequency impedance tracking sensorless algorithm 有权
标题翻译：用于高频阻抗跟踪无传感器算法的幅度检测方法和装置
公开(公告)号：US06763622B2
公开(公告)日：2004-07-20
申请号：US10268507
申请日：2002-10-10
申请人： Steven E. Schulz , Nitinkumar R. Patel
发明人： Steven E. Schulz , Nitinkumar R. Patel
IPC分类号： H02P146
CPC分类号： B60L11/18 , B60L11/1803 , B60L15/025 , H02P6/181 , H02P6/183 , H02P6/185 , H02P21/0089 , H02P21/18 , H02P21/26 , H02P2203/05 , H02P2203/11 , H02P2207/05 , Y02T10/643 , Y02T10/7005 , Y02T10/7258
摘要： A control system for an electric motor including an inverter for providing power to the electric motor, a controller for controlling the inverter, a first motor speed control block in the controller injecting a high frequency signal into the electric motor to determine the speed and position of the electric motor, where the first motor speed control block includes a tuned moving average filter to determine the magnitude of high frequency current in the electric motor.
摘要翻译：一种用于电动机的控制系统，包括用于向电动机提供电力的逆变器，用于控制逆变器的控制器，控制器中的第一电动机速度控制块，将高频信号注入电动机以确定速度和位置电动机，其中第一电动机速度控制块包括调谐移动平均滤波器，以确定电动机中的高频电流的大小。

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