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1. 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

2. 发明授权

US08446113B2 Vehicular electrical system and method for controlling an inverter during motor deceleration 有权
标题翻译：车辆电气系统和电机减速期间控制变频器的方法
公开(公告)号：US08446113B2
公开(公告)日：2013-05-21
申请号：US12817950
申请日：2010-06-17
申请人： Brian A Welchko , Konstantin S. Majarov , Silva Hiti , Steven E. Schulz , Aniket Kothari , Nicholas Kokotovich
发明人： Brian A Welchko , Konstantin S. Majarov , Silva Hiti , Steven E. Schulz , Aniket Kothari , Nicholas Kokotovich
IPC分类号： H02P3/14
CPC分类号： B60L7/06 , B60L3/04 , B60L7/003 , B60L7/08 , Y02T10/7258
摘要： Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated or each of the plurality of low switches is activated and each of the plurality of high switches is deactivated. In the second mode of operation, each of the plurality of high switches is deactivated and each of the plurality of low switches is deactivated.
摘要翻译：提供了用于操作具有多个高开关的逆变器和耦合到电动机的多个低开关的方法和系统。检测到表示电动机减速的事件。逆变器在电动机的减速期间在第一操作模式和第二操作模式之间交替。在第一操作模式中，多个高开关中的每一个被激活，并且多个低开关中的每一个被去激活，或者多个低开关中的每一个被激活，并且多个高开关中的每一个被去激活。在第二操作模式中，多个高开关中的每一个被去激活，并且多个低开关中的每一个被去激活。

3. 发明申请

US20110309779A1 VEHICULAR ELECTRICAL SYSTEM AND METHOD FOR CONTROLLING AN INVERTER DURING MOTOR DECELERATION 有权
标题翻译：在电机减速期间控制逆变器的车辆电气系统和方法
公开(公告)号：US20110309779A1
公开(公告)日：2011-12-22
申请号：US12817952
申请日：2010-06-17
申请人： Silva Hiti , Steven E. Schulz , Konstantin S. Majarov , Brian A. Welchko
发明人： Silva Hiti , Steven E. Schulz , Konstantin S. Majarov , Brian A. Welchko
IPC分类号： H02P6/00
CPC分类号： B60L11/14 , B60L3/0061 , B60L7/14 , B60L15/2009 , B60L2210/10 , B60L2210/30 , B60L2210/40 , B60L2240/423 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7216 , Y02T10/7241 , Y02T10/7275
摘要： Methods and systems for operating an inverter coupled to an electric motor are provided. The inverter has a plurality of high switches and a plurality of low switches coupled to the electric motor. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated. In the second mode of operation, each of the plurality of low switches is activated and each of the plurality of high switches is deactivated.
摘要翻译：提供了用于操作耦合到电动机的逆变器的方法和系统。逆变器具有耦合到电动机的多个高开关和多个低开关。检测到表示电动机减速的事件。逆变器在电动机的减速期间在第一操作模式和第二操作模式之间交替。在第一操作模式中，多个高开关中的每一个被激活，并且多个低开关中的每一个被去激活。在第二操作模式中，多个低开关中的每一个被激活，并且多个高开关中的每一个被去激活。

4. 发明申请

US20110309777A1 VEHICULAR ELECTRICAL SYSTEM AND METHOD FOR CONTROLLING AN INVERTER DURING MOTOR DECELERATION 有权
标题翻译：在电机减速期间控制逆变器的车辆电气系统和方法
公开(公告)号：US20110309777A1
公开(公告)日：2011-12-22
申请号：US12817950
申请日：2010-06-17
申请人： Brian A. Welchko , Konstantin S. Majarov , Silva Hiti , Steven E. Schulz , Aniket Kothari , Nicholas Kokotovich
发明人： Brian A. Welchko , Konstantin S. Majarov , Silva Hiti , Steven E. Schulz , Aniket Kothari , Nicholas Kokotovich
IPC分类号： H02P3/14
CPC分类号： B60L7/06 , B60L3/04 , B60L7/003 , B60L7/08 , Y02T10/7258
摘要： Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated or each of the plurality of low switches is activated and each of the plurality of high switches is deactivated. In the second mode of operation, each of the plurality of high switches is deactivated and each of the plurality of low switches is deactivated.
摘要翻译：提供了用于操作具有多个高开关的逆变器和耦合到电动机的多个低开关的方法和系统。检测到表示电动机减速的事件。逆变器在电动机的减速期间在第一操作模式和第二操作模式之间交替。在第一操作模式中，多个高开关中的每一个被激活，并且多个低开关中的每一个被去激活，或者多个低开关中的每一个被激活，并且多个高开关中的每一个被去激活。在第二操作模式中，多个高开关中的每一个被去激活，并且多个低开关中的每一个被去激活。

5. 发明授权

US07652443B2 Method and system for controlling a power inverter in electric drives 有权
标题翻译：用于控制电力变频器中的电力变换器的方法和系统
公开(公告)号：US07652443B2
公开(公告)日：2010-01-26
申请号：US11923270
申请日：2007-10-24
申请人： Steven E. Schulz , Stephen T. West , Brian A. Welchko , Silva Hiti
发明人： Steven E. Schulz , Stephen T. West , Brian A. Welchko , Silva Hiti
IPC分类号： H02P7/00
CPC分类号： B60L15/08 , B60L2240/421 , B60L2240/423 , B60L2240/526 , B60L2270/14 , Y02T10/645
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 a commanded torque of the electric motor being below a first torque level, controlling the power inverter to set a switching frequency of the power inverter at a first set frequency; and, responsive to the commanded torque of the electric motor being between the first torque level and a second torque level, controlling the power inverter to determine the switching frequency of the power inverter as a function of the commanded torque of the electric motor while maintaining the switching frequency above a dynamic frequency limit. The method reduces switching frequencies in the inverter at high commanded torques, while maintaining the switching frequencies above dynamic frequency limit that provides effective control over the 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低于第一转矩水平来控制功率逆变器，控制功率逆变器将功率逆变器的开关频率设定在第一设定频率; 并且响应于所述电动机的所述指令转矩在所述第一转矩水平和第二转矩水平之间，控制所述电力逆变器，以根据所述电动机的指令转矩来确定所述电力逆变器的开关频率，同时保持开关频率高于动态频率限制。该方法以较高的指令转矩降低变频器的开关频率，同时保持开关频率高于动态频率限制，从而提供对电机的有效控制。

6. 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。

7. 发明授权

US07880425B2 Electric motor drive systems, motor vehicles, and methods of phase current regulation 有权
标题翻译：电动机驱动系统，机动车辆和相电流调节方法
公开(公告)号：US07880425B2
公开(公告)日：2011-02-01
申请号：US11944793
申请日：2007-11-26
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： H02P27/00
CPC分类号： B60L9/18 , B60L11/18 , H02P6/08 , H02P21/22 , H02P27/06 , H02P2205/01 , Y02T10/643 , Y02T10/7005
摘要： In various embodiments, an electric motor drive system (400, FIG. 4) and a motor vehicle (1000, FIG. 10) include an inverter (404, FIG. 4) adapted to generate (604, FIG. 6), based on inverter control inputs, a number, N, of phase current waveforms (118, FIG. 1), and a phase current sampling apparatus (408, FIG. 4) having a same number, N, of current sensors (502, 503, 504, FIG. 5). Each of the current sensors is adapted to receive one of the phase current waveforms, and the current sensors are adapted simultaneously to sample the phase current waveforms and to generate digital values representing amplitudes of the phase current waveforms. The system and motor vehicle also include a controller (410, FIG. 4) adapted to receive the digital values, to perform an evaluation of the digital values, and to generate the inverter control inputs (462, FIG. 4) based on the evaluation.
摘要翻译：在各种实施例中，电动机驱动系统（400，图4）和机动车辆（图10中的1000）包括适于产生（604，图6）的逆变器（图4），基于逆变器控制输入，N个相电流波形（图118）和具有相同数量N的电流传感器（502,503,504）的相电流采样装置（408，图4），图5）。每个电流传感器适于接收一个相电流波形，并且电流传感器同时适应于对相电流波形进行采样并产生表示相电流波形幅度的数字值。系统和机动车辆还包括适于接收数字值的控制器（410，图4），以执行数字值的评估，并且基于评估产生逆变器控制输入（462，图4）。

8. 发明授权

US07774148B2 Torque estimator for IPM motors 有权
标题翻译： IPM电机的扭矩估计器
公开(公告)号：US07774148B2
公开(公告)日：2010-08-10
申请号：US11668830
申请日：2007-01-30
申请人： Brian A Welchko , Silva Hiti , Steven E. Schulz
发明人： Brian A Welchko , Silva Hiti , Steven E. Schulz
IPC分类号： G01L1/00 , H02K21/12 , H02P23/00 , G01R1/20
CPC分类号： H02P23/14
摘要： In an embodiment of a method, the method includes measuring currents and voltages that are coupled to a motor that includes an internal permanent magnet and determining a reactive power in response to the measured currents and voltages. The method further includes estimating a first flux orthogonal to an axis of the internal permanent motor and estimating a second flux aligned with the axis of the internal permanent motor. Additionally, the method includes estimating a torque in response to the measured currents and the first and second fluxes.
摘要翻译：在方法的实施例中，该方法包括测量耦合到包括内部永磁体的电动机的电流和电压，并响应于测量的电流和电压来确定无功功率。该方法还包括估计与内部永久电动机的轴正交的第一通量，并估计与内部永久电动机的轴线对准的第二通量。另外，该方法包括响应于测量的电流和第一和第二通量来估计转矩。

9. 发明申请

US20090069142A1 METHOD AND SYSTEM FOR CONTROLLING POWER INVERTERS IN ELECTRIC DRIVES OF VEHICLES WITH TWO-MODE TRANSMISSIONS 有权
标题翻译：用双向传输控制车辆电力驱动的电力逆变器的方法和系统
公开(公告)号：US20090069142A1
公开(公告)日：2009-03-12
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： F16H3/66 , B60K1/00 , B60K6/00
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, electromechanical 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原动机电源的第一和第二电动机的双模式，复合分离机电变速器，耦合到第一和第二电动机的电力逆变器，以及耦合到到第一和第二电机和电源逆变器。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。

10. 发明授权

US07286375B1 Dead-time compensation method for electric drives 有权
标题翻译：电驱动器的死区补偿方法
公开(公告)号：US07286375B1
公开(公告)日：2007-10-23
申请号：US11625962
申请日：2007-01-23
申请人： Brian A Welchko , Silva Hiti , Steven E. Schulz
发明人： Brian A Welchko , Silva Hiti , Steven E. Schulz
IPC分类号： H02M1/12 , H02M7/68 , H02M7/44
CPC分类号： H02M7/53803 , H02M2001/385
摘要： Methods and apparatus are provided for compensating for a deviation in voltage output of a phase leg inverter when dead-time periods are inserted to prevent shoot-through failures. The method includes determining a pulse width for an input signal to the inverter such that the inverter voltage output is a desired amount. The pulse width is based on the non-inverted or inverted pulse sequences of two carrier signals and the polarity of current through the inverter. An amount of pulse width is added to the input signal when the current is positive, and an amount of pulse width is subtracted from the input signal when the current is negative. An additional amount of pulse width is added to or subtracted from the input signal depending on whether the carrier signal sequence changes from a non-inverted signal to an inverted signal or changes from an inverted signal to a non-inverted signal, respectively.
摘要翻译：提供了方法和装置，用于在插入死区时间时补偿相位臂逆变器的电压输出偏差，以防止直通故障。该方法包括：确定用于反相器的输入信号的脉冲宽度，使得逆变器电压输出为期望的量。脉冲宽度基于两个载波信号的非反相或反相脉冲序列以及通过反相器的电流极性。当电流为正时，将一定量的脉冲宽度加到输入信号上，当电流为负时，从输入信号中减去一定量的脉冲宽度。根据载波信号序列是否从非反相信号改变为反相信号，或分别从反相信号改变为非反相信号，将附加量的脉冲宽度加到输入信号或从输入信号中减去。

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