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1. 发明授权

US07564248B2 Method and apparatus for monitoring fuel cells 有权
标题翻译：用于监测燃料电池的方法和装置
公开(公告)号：US07564248B2
公开(公告)日：2009-07-21
申请号：US11684967
申请日：2007-03-12
申请人： Richard M. Breese , Thomas P. O'Meara , Stanley K. Fujii , Bernd Peter Elgas , Stephen Raiser
发明人： Richard M. Breese , Thomas P. O'Meara , Stanley K. Fujii , Bernd Peter Elgas , Stephen Raiser
IPC分类号： G01R27/08 , H01M8/00
CPC分类号： G01R31/3662 , G01R31/3606 , G01R31/3631 , H01M8/04044 , H01M8/04485 , H01M8/04544 , H01M8/04634 , H01M8/04992 , H01M2250/20 , Y02T90/32
摘要： Methods and apparatus are provided for monitoring a coolant conductivity of a fuel cell supplying power via positive and negative buses. The method includes measuring a first voltage of the positive bus, measuring a second voltage of the negative bus, applying a resistance between the positive bus and a reference potential, measuring a third voltage of the positive bus after a period of applying the resistance, and determining an isolation resistance based on the measured voltages. The isolation resistance is a function of the coolant conductivity.
摘要翻译：提供了用于监视通过正和负母线供应电力的燃料电池的冷却剂导电性的方法和装置。该方法包括测量正母线的第一电压，测量负母线的第二电压，在正母线与参考电位之间施加电阻，在施加电阻的周期之后测量正母线的第三电压，以及基于测量的电压确定隔离电阻。隔离电阻是冷却剂导电率的函数。

2. 发明授权

US06208540B1 Combined power inverter and auxilliary power supply using null vector modulation 有权
标题翻译：组合电源逆变器和辅助电源采用零向量调制
公开(公告)号：US06208540B1
公开(公告)日：2001-03-27
申请号：US09575523
申请日：2000-05-23
申请人： Thomas P. O'Meara , Constantin C. Stancu
发明人： Thomas P. O'Meara , Constantin C. Stancu
IPC分类号： H02M324
CPC分类号： H02M7/53875 , H02M2001/0006 , H02M2001/009
摘要： Power-generating apparatus and a voltage generation method employing null vector modulation for use with an electric vehicle. A DC power supply voltage is provided or generated from a power source and is inverted by a three-phase inverter to generate three phase AC that is supplied to an AC motor or load. One phase of the three phase AC is filtered and transformed by a DC rejection capacitor and single phase transformer of an auxiliary power supply to generate an AC voltage. The AC voltage is rectified and filtered by a rectifier and low pass filter of the auxiliary power supply to produce a DC output voltage. The one phase of the three phase AC and the DC output voltage are processed by a controller to control frequencies of null line-to-line zero voltage vectors during inversion so that the transformed AC voltage does not affect or is not seen by the AC motor or load. This allows for independent control of the voltage at the output of the auxiliary power supply.
摘要翻译：发电装置和使用零矢量调制的电压产生方法用于电动车辆。从电源提供或产生直流电源电压，并由三相逆变器反相，以产生提供给AC电动机或负载的三相AC。三相AC的一相由辅助电源的DC抑制电容器和单相变压器进行滤波和变换，以产生AC电压。 AC电压由辅助电源的整流器和低通滤波器整流滤波，产生直流输出电压。三相AC和直流输出电压的一相由控制器进行处理，以控制反转时零线零电压矢量的频率，使得变换的交流电压不会受到交流电机的影响或加载。这允许独立控制辅助电源输出端的电压。

3. 发明授权

US08153309B2 Apparatus and method using hydrogen pressure in fuel cell electric vehicle 有权
标题翻译：在燃料电池电动汽车中使用氢气压力的装置和方法
公开(公告)号：US08153309B2
公开(公告)日：2012-04-10
申请号：US12472940
申请日：2009-05-27
申请人： Konstantin S. Majarov , Thomas P. O'Meara
发明人： Konstantin S. Majarov , Thomas P. O'Meara
IPC分类号： H01M8/06
CPC分类号： F01B17/02 , F01B1/02 , H01M8/04067 , H01M8/04089 , H01M2250/20 , H01M2250/402 , H01M2250/407 , Y02B90/12 , Y02E60/563 , Y02T90/32
摘要： A hydrogen fuel cell system (100) for charging a battery (116) of an electric vehicle, includes at least one tank (102) for storing hydrogen under pressure. A combined heat exchanger and air engine (104) expands the pressurized hydrogen and converts the expanding hydrogen into mechanical energy. A plurality of fuel cells (106) receive the expanded hydrogen for supplying heat to the heat exchanger and air engine (104) and supplying a first current for charging the battery (116). A generator (108) generates a multi-phase voltage in response to the mechanical energy. A electrical power converter (110) responsive to the multi-phase voltage provides a second current for charging the battery (116).
摘要翻译：一种用于对电动车辆的电池（116）充电的氢燃料电池系统（100），包括用于在压力下存储氢的至少一个储罐（102）。组合的热交换器和空气发动机（104）扩展加压氢气并将膨胀的氢气转化为机械能。多个燃料电池（106）接收用于向热交换器和空气发动机（104）供热的膨胀氢气，并提供用于对电池（116）充电的第一电流。发电机（108）响应于机械能产生多相电压。响应于多相电压的电力转换器（110）提供用于为电池（116）充电的第二电流。

4. 发明申请

US20080224687A1 METHOD AND APPARATUS FOR MONITORING FUEL CELLS 有权
标题翻译：用于监测燃料电池的方法和装置
公开(公告)号：US20080224687A1
公开(公告)日：2008-09-18
申请号：US11684967
申请日：2007-03-12
申请人： Richard M. Breese , Thomas P. O'Meara , Stanley K. Fujii , Bernd Peter Elgas , Stephen Raiser
发明人： Richard M. Breese , Thomas P. O'Meara , Stanley K. Fujii , Bernd Peter Elgas , Stephen Raiser
IPC分类号： G01R19/00
CPC分类号： G01R31/3662 , G01R31/3606 , G01R31/3631 , H01M8/04044 , H01M8/04485 , H01M8/04544 , H01M8/04634 , H01M8/04992 , H01M2250/20 , Y02T90/32
摘要： Methods and apparatus are provided for monitoring a coolant conductivity of a fuel cell supplying power via positive and negative buses. The method includes measuring a first voltage of the positive bus, measuring a second voltage of the negative bus, applying a resistance between the positive bus and a reference potential, measuring a third voltage of the positive bus after a period of applying the resistance, and determining an isolation resistance based on the measured voltages. The isolation resistance is a function of the coolant conductivity.
摘要翻译：提供了用于监视通过正和负母线供应电力的燃料电池的冷却剂导电性的方法和装置。该方法包括测量正母线的第一电压，测量负母线的第二电压，在正母线与参考电位之间施加电阻，在施加电阻的周期之后测量正母线的第三电压，以及基于测量的电压确定隔离电阻。隔离电阻是冷却剂导电率的函数。

5. 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。

6. 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。

7. 发明授权

US06760669B2 Method and system of reducing inefficiencies in an internal permanent magnet motor using fuzzy logic 有权
标题翻译：使用模糊逻辑降低内部永磁电机效率低下的方法和系统
公开(公告)号：US06760669B2
公开(公告)日：2004-07-06
申请号：US09789217
申请日：2001-02-20
申请人： Nitinkumar R. Patel , Thomas P. O'Meara
发明人： Nitinkumar R. Patel , Thomas P. O'Meara
IPC分类号： G01R1500
CPC分类号： G05B13/0275 , H02P6/28 , H02P6/34
摘要： A method of reducing loss in an interior permanent magnet drive system is provided. A current input DC link power value is calculated. The current input DC link power value is then compared with a previous input DC link power value. A change in input DC link power value is determined from this comparison. A flux decrement value is calculated. The flux decrement value is based on the change in input DC link power value. A stator current value is generated. The stator current value is based on the flux decrement value. Finally, the stator flux current is reduced, based on the stator current value.
摘要翻译：提供一种降低内部永磁体驱动系统的损耗的方法。计算电流输入DC链路功率值。然后将当前输入的DC链路功率值与先前的输入DC链路功率值进行比较。从该比较确定输入DC链路功率值的变化。计算通量减量值。通量减量值基于输入直流母线功率值的变化。产生定子电流值。定子电流值基于磁通量减量值。最后，基于定子电流值，定子磁通电流减小。

8. 发明授权

US06304052B1 Control system for a permanent magnet motor 失效
标题翻译：永磁电机控制系统
公开(公告)号：US06304052B1
公开(公告)日：2001-10-16
申请号：US09604441
申请日：2000-06-27
申请人： Thomas P. O'Meara , Nitinkumar Ratilal Patel
发明人： Thomas P. O'Meara , Nitinkumar Ratilal Patel
IPC分类号： H02P2100
CPC分类号： H02P6/085 , H02P21/22
摘要： A control system for an interior permanent magnet motor which includes five regulators to provide efficient control of the motor. Deviation from a desired maximum torque per amp trajectory is minimized by making two of the five regulators field-weakening regulators. First and second regulators provide current control of the quadrature-axis current and direct-axis current, respectively. A limiter limits the direct-axis current from exceeding the maximum allowed stator current and any excess current is added to the quadrature-axis current. Fourth and fifth regulators are field-weakening regulators. The fourth regulator generates a first field-weakening signal that increases the direct-axis signal when the quadrature-axis voltage approaches a desired maximum voltage. The fifth regulator generates a second field-weakening signal that decreases the quadrature-axis current signal when the direct-axis voltage approaches a desired maximum voltage. An inverter circuit applies a modulated current signal to the motor in accordance with the five regulators.
摘要翻译：一种用于内部永磁电动机的控制系统，其包括五个调节器以提供对电动机的有效控制。通过使五个稳压器中的两个减弱弱磁调节器，使每个放大器轨迹的期望最大转矩偏差最小化。第一和第二调节器分别提供正交电流和直轴电流的电流控制。限制器限制直轴电流超过允许的最大定子电流，并且任何过剩电流被加到正交轴电流。第四和第五监管机构是减弱弱势的监管机构。第四调节器产生第一弱磁信号，当正交轴电压接近期望的最大电压时增加直轴信号。第五调节器产生第二弱磁信号，当直轴电压接近期望的最大电压时，减小正交轴电流信号。逆变器电路根据五个调节器向电动机施加调制电流信号。

9. 发明授权

US06208110B1 Method for determining rotor position 有权
标题翻译：确定转子位置的方法
公开(公告)号：US06208110B1
公开(公告)日：2001-03-27
申请号：US09409890
申请日：1999-10-01
申请人： Thomas P. O'Meara , Nitinkumar Ratilal Patel
发明人： Thomas P. O'Meara , Nitinkumar Ratilal Patel
IPC分类号： H02P528
CPC分类号： H02P6/182 , B60L11/1807 , Y02T10/642 , Y02T10/7005
摘要： The absolute position of a rotor of a permanent magnet motor is determined by detecting an angular position of a direct axis of the rotor; and detecting a polarity of the rotor to determine the absolute position of the rotor. The polarity of the rotor may be determined by applying a square wave voltage to phase windings of a stator of the motor to generate an mmf vector parallel to the direct axis, measuring phase currents of the phase windings, determining a direct axis current responsive to the measured phase currents and the angular position, determining that the rotor is aligned with the mmf vector if the direct axis current is shifted positive, and determining that the rotor is aligned 180 degrees out of phase with the mmf vector if the direct axis current is shifted negative.
摘要翻译：通过检测转子的直轴的角位置来确定永磁电动机的转子的绝对位置; 并且检测转子的极性以确定转子的绝对位置。转子的极性可以通过对电动机的定子的相绕组施加方波电压来确定，以产生平行于直轴的mmf矢量，测量相绕组的相电流，确定响应于测量相电流和角位置，如果直轴电流偏移为正，则确定转子与mmf矢量对齐，并且如果直轴电流偏移，则确定转子与mmf矢量对准180度异相与mmf矢量负。

10. 发明授权

US6163127A System and method for controlling a position sensorless permanent magnet motor 有权
标题翻译：用于控制无位置传感器永磁电动机的系统和方法
公开(公告)号：US6163127A
公开(公告)日：2000-12-19
申请号：US444437
申请日：1999-11-22
申请人： Nitinkumar Ratilal Patel , Thomas P. O'Meara
发明人： Nitinkumar Ratilal Patel , Thomas P. O'Meara
IPC分类号： B60L11/18 , B60L15/02 , H02P6/18 , H02P7/36
CPC分类号： H02P6/18 , B60L11/1803 , B60L15/025 , B60L15/20 , H02P6/181 , H02P2203/05 , Y02T10/643 , Y02T10/7005 , Y02T10/7275
摘要： A position sensorless interior permanent magnet drive system and methods for use in electric and hybrid electric vehicles. The interior permanent magnet drive system and method use two rotor position estimation techniques for low and high speed operation and an initial rotor magnet polarity detection technique used at stand-still conditions. The use of the two different rotor position estimation techniques in combination enhances system efficiency and accuracy.
摘要翻译：无位置传感器内部永磁驱动系统及其用于电动和混合动力电动车辆的方法。内部永磁驱动系统和方法使用两个转子位置估计技术进行低速和高速运行，以及在静止条件下使用的初始转子磁极极性检测技术。使用两种不同的转子位置估计技术相结合，提高了系统的效率和精度。

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