公开(公告)号：US06630809B2

公开(公告)日：2003-10-07

申请号：US09683180

申请日：2001-11-29

申请人： Li Chen ,  Xingyi Xu ,  Vinod Reddy ,  Richard Joseph Hampo ,  Kerry Eden Grand

发明人： Li Chen ,  Xingyi Xu ,  Vinod Reddy ,  Richard Joseph Hampo ,  Kerry Eden Grand

IPC分类号： H02P764

CPC分类号： H02P21/22

摘要： Field oriented induction motor system including a field oriented induction motor having an associated torque current and an associated flux current and a predetermined current ratio, wherein the predetermined current ratio is defined as the ratio of the torque current to the flux current, and wherein the predetermined current ratio is dependent upon the saturation state of the motor. A method for selecting the ratio of torque current to flux current for a field oriented induction motor including applying an allocation factor to the torque current and flux current, wherein the allocation factor is dependent upon the saturation state of the motor. The saturation state of the motor is determined based upon motor parameters.

摘要翻译： 磁场定向感应电动机系统包括具有相关联的转矩电流和相关联的磁通电流和预定电流比的场定向感应电动机，其中预定电流比被定义为转矩电流与磁通电流的比率，并且其中预定 电流比取决于电机的饱和状态。 一种用于选择场定向感应电动机的转矩电流与磁通电流的比率的方法，包括对转矩电流和磁通电流施加分配因子，其中分配因子取决于电动机的饱和状态。 电动机的饱和状态根据电机参数确定。

公开(公告)号：US06815925B2

公开(公告)日：2004-11-09

申请号：US10293911

申请日：2002-11-12

申请人： Li Chen ,  Xingyi Xu ,  Vinod Reddy ,  Richard J. Hampo ,  Kerry E. Grand

发明人： Li Chen ,  Xingyi Xu ,  Vinod Reddy ,  Richard J. Hampo ,  Kerry E. Grand

IPC分类号： H02P124

CPC分类号： H02P23/03 ,  B60L15/025 ,  B60L2220/12 ,  H02P21/0021 ,  H02P21/141 ,  Y02T10/643

摘要： Systems and methods for controlling and/or calculating the torque for a field oriented induction motor operating at a given stator frequency. The systems and methods include calculating the torque using a first algorithm when the motor is at or below a first predetermined stator frequency, a second algorithm when the motor is at or above a second predetermined stator frequency, and a third algorithm when the motor is between the first predetermined stator frequency and the second predetermined stator frequency.

摘要翻译： 用于控制和/或计算在给定定子频率下工作的场定向感应电动机的转矩的系统和方法。 所述系统和方法包括当电动机处于或低于第一预定定子频率时使用第一算法来计算扭矩，当电动机处于或高于第二预定定子频率时的第二算法，以及当电动机在 第一预定定子频率和第二预定定子频率。

公开(公告)号：US06394208B1

公开(公告)日：2002-05-28

申请号：US09539512

申请日：2000-03-30

申请人： Richard Joseph Hampo ,  Xingyi Xu

发明人： Richard Joseph Hampo ,  Xingyi Xu

IPC分类号： B60K100

CPC分类号： B60W10/08 ,  B60K6/48 ,  B60L2240/445 ,  B60W10/26 ,  B60W2050/0045 ,  B60W2510/0676 ,  Y02T10/6221 ,  Y02T90/16

摘要： A hybrid electric vehicle contains a powerplant for propelling the vehicle. The powerplant comprises a combustion engine (6) and a dynamoelectric machine (8). A control system (10) issues a wheel torque command corresponding to torque desired at road-engaging wheels, and includes an engine controller (16) for issuing an engine torque command and a dynamoelectric machine controller (18) for issuing a dynamoelectric machine torque command. Controller (18) contains one or more maps and/or profiles defining functional relationship of torque to engine crankshaft speed and/or position over a range of crankshaft speeds and/or positions. The maps and/or profiles are used to develop make-up torque that is delivered by the dynamoelectric machine to accomplish certain smoothing functions. Transmission gear shifts can be smoothed by using the dynamoelectric machine controller to slew the engine to a new target speed appropriate to the new gear. A dedicated, high-speed data communication link supplies crankshaft speed and position information from an engine-mounted sensor directly to controller (18).

摘要翻译： 混合电动车辆包含用于推进车辆的动力装置。 动力装置包括内燃机（6）和电动机（8）。 控制系统（10）发出对应于道路接合轮所需的扭矩的车轮扭矩指令，并且包括用于发出发动机转矩指令的发动机控制器（16）和用于发出电动机械转矩指令的电动机械控制器（18） 。 控制器（18）包含定义扭矩与发动机曲轴速度和/或曲轴速度和/或位置范围上的位置的功能关系的一个或多个地图和/或轮廓。 地图和/或轮廓用于开发由电动机提供的补偿扭矩以实现某些平滑功能。 通过使用电动机械控制器将发动机旋转到适合新齿轮的新目标速度，可以平滑变速器档位。 专用的高速数据通信链路将来自发动机安装的传感器的曲轴速度和位置信息直接提供给控制器（18）。

公开(公告)号：US06388419B1

公开(公告)日：2002-05-14

申请号：US09653654

申请日：2000-09-01

申请人： Li Chen ,  Xingyi Xu ,  Richard Joseph Hampo ,  Kerry Eden Grand

发明人： Li Chen ,  Xingyi Xu ,  Richard Joseph Hampo ,  Kerry Eden Grand

IPC分类号： H02P124

CPC分类号： B60L11/14 ,  B60L11/1807 ,  B60L11/1881 ,  B60L15/025 ,  B60L2220/12 ,  B60L2220/14 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T90/34

摘要： A motor control system 16 for use within an electric vehicle 10 having an induction motor 12. Control system 16 utilizes a torque control module 18, a vector control module 20 and a space vector PWM module 22 to efficiently and accurately control the torque provided by motor 12.

摘要翻译： 一种用于具有感应电动机12的电动车辆10内的电动机控制系统16.控制系统16利用转矩控制模块18，矢量控制模块20和空间矢量PWM模块22来有效且准确地控制由电动机提供的转矩 12。

公开(公告)号：US06937483B2

公开(公告)日：2005-08-30

申请号：US10345894

申请日：2003-01-15

申请人： Lizhi Zhu ,  Xingyi Xu

发明人： Lizhi Zhu ,  Xingyi Xu

IPC分类号： H02M3/335

CPC分类号： H02M3/33576

摘要： A device and method of commutation control for an isolated boost converter provides a unique commutation logic to limit voltage spikes by utilizing switches on the secondary side to minimize a mismatch between current in the inductor and current in the leakage inductance of the transformer when commutation takes places. To minimize this mismatch, the current in the leakage inductance is preset at a certain level that approaches the current in the inductor prior to the commutation, thus significantly reducing the power rating for a clamp circuit and enabling use of a simple passive clamp circuit. In addition, through unique timing of the turn-on of the secondary switches, soft switching conditions are created that eliminate turn-on losses and the reverse recovery problems of free-wheeling diodes.

摘要翻译： 用于隔离升压转换器的换向控制的装置和方法提供了独特的换向逻辑，以通过利用次级侧上的开关来限制电压尖峰，以最小化电感器中的电流与换向时的变压器漏电感中的电流之间的失配 。 为了最小化这种不匹配，漏电感中的电流被预设为在换向之前接近电感器中的电流的一定水平，因此显着地降低了钳位电路的额定功率并且使得能够使用简单的无源钳位电路。 此外，通过二次开关导通的独特定时，产生软切换条件，消除了续流二极管的导通损耗和反向恢复问题。

公开(公告)号：US5765513A

公开(公告)日：1998-06-16

申请号：US746592

申请日：1996-11-12

申请人： Roy Edward Diehl ,  Feng Liang ,  John Michael Miller ,  Xingyi Xu

发明人： Roy Edward Diehl ,  Feng Liang ,  John Michael Miller ,  Xingyi Xu

IPC分类号： F01L9/04

CPC分类号： F01L9/04

摘要： An electromechanically actuated valve (12) for use as an intake or exhaust valve in an internal combustion engine. The valve (12) is actuated by a electromechanical actuator assembly (18) which includes a first electromagnet (22), second electromagnet (30) and third electromagnet (32). A first disk (38) is fixedly mounted to the valve (12) in a gap between the first and second electromagnets, and a second disk (44) is slidably mounted to the valve (12) above the third electromagnet (32) with a stop member (40) limiting its travel toward the first disk (38). With the valve (12) being in a closed position, the gap between the first disk (38) and the first electromagnet (22) is greater than the gap between the second disk (44) and third electromagnet (32), allowing for multiple valve lifts. A first spring (48), mounted between the cylinder head (14) and first disk (38), and a second spring (50), mounted between the second disk (44) and an actuator housing (20), create an oscillatory system which drives most of the valve movement during engine operation, thus reducing power requirements to actuate the valves while increasing the responsiveness of the valves.

摘要翻译： 一种用于内燃机中的进气或排气阀的机电致动阀（12）。 阀（12）由包括第一电磁体（22），第二电磁体（30）和第三电磁体（32）的机电致动器组件（18）致动。 第一盘（38）在第一和第二电磁体之间的间隙中固定地安装到阀（12）上，并且第二盘（44）可滑动地安装到第三电磁体（32）上方的阀（12）上， 停止构件（40）限制其朝向第一盘（38）的行进。 在阀（12）处于关闭位置时，第一盘（38）和第一电磁体（22）之间的间隙大于第二盘（44）和第三电磁体（32）之间的间隙，允许多个 气门升降机 安装在气缸盖（14）和第一盘（38）之间的第一弹簧（48）和安装在第二盘（44）和致动器壳体（20）之间的第二弹簧（50）产生振荡系统 其在发动机运行期间驱动阀门运动的大部分，从而降低了致动阀门的功率需求，同时增加了阀的响应性。

公开(公告)号：US5736786A

公开(公告)日：1998-04-07

申请号：US625826

申请日：1996-04-01

申请人： Venkateswara A. Sankaran ,  Xingyi Xu ,  Yi-Hsin Pao ,  Wen-Je Jung

发明人： Venkateswara A. Sankaran ,  Xingyi Xu ,  Yi-Hsin Pao ,  Wen-Je Jung

IPC分类号： H01L23/373 ,  H01L23/492 ,  H01L25/07 ,  H01L23/34 ,  H01L23/48

CPC分类号： H01L24/49 ,  H01L23/3735 ,  H01L23/492 ,  H01L25/072 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48227 ,  H01L2224/48472 ,  H01L2224/49111 ,  H01L2224/73265 ,  H01L24/48 ,  H01L24/73 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01014 ,  H01L2924/01019 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01074 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/10253 ,  H01L2924/15747 ,  H01L2924/15787

摘要： A power module has a metallic base plate layer and a substrate layer that has a first metallic layer, a dielectric layer, and a second metallic layer. A solder layer thermally and electrically connects the second metallic layer to the base plate. A plurality of silicon dice are mounted to the first metallic layer of the substrate. The solder layer has a void development region which after a predetermined number of thermal cycles does not significantly increase. The silicon dice are oriented on the substrate layer so that the silicon dice are not aligned over the void development region corresponding to the useful life of the module. The metallic base plate may also be mounted to a heatsink through a thermal grease layer. The heatsink may comprise the outer covering of the power module.

摘要翻译： 功率模块具有金属基板层和具有第一金属层，电介质层和第二金属层的基板层。 焊接层将第二金属层热电连接到基板。 多个硅片被安装到基板的第一金属层上。 焊料层具有在预定数量的热循环之后不显着增加的空隙显影区域。 硅片在衬底层上取向，使得硅片不对准与模块的使用寿命相对应的空隙显影区域。 金属底板也可以通过导热油脂层安装到散热器上。 散热器可以包括电源模块的外壳。

公开(公告)号：US5627446A

公开(公告)日：1997-05-06

申请号：US498163

申请日：1995-07-05

申请人： Doug Deng ,  Xingyi Xu

发明人： Doug Deng ,  Xingyi Xu

IPC分类号： B60L15/02 ,  H02P5/402

CPC分类号： B60L15/025 ,  B60L2220/12 ,  Y02T10/643

摘要： In one embodiment of the present invention, a control method for an induction motor includes calculating a desired quadrature-axis voltage and a desired direct-axis voltage according to both current control and voltage control. Below a predetermined motor speed, the motor is controlled in accordance with current control only. Above that predetermined speed, the two desired quadrature-axis voltages are combined in relative proportions, with the influence of voltage control being greater with higher motor speed. The two desired direct-axis voltages are likewise combined. The influence of voltage control thus increases with increasing motor speed. Above a second motor speed threshold, the motor is controlled in accordance with voltage control only.

摘要翻译： 在本发明的一个实施例中，感应电动机的控制方法包括根据电流控制和电压控制来计算期望的正交轴电压和期望的直轴电压。 低于预定的电机速度，马达仅根据电流控制进行控制。 高于预定速度时，两个期望的正交轴电压以相对比例组合，电压控制的影响随着电机速度的增加而增大。 两个期望的直轴电压同样组合。 因此电压控制的影响随着电动机速度的增加而增加。 高于第二个电机转速阈值时，电机只能根据电压控制进行控制。

公开(公告)号：US5528446A

公开(公告)日：1996-06-18

申请号：US270611

申请日：1994-07-05

申请人： Venkateswara Sankaran ,  Xingyi Xu

发明人： Venkateswara Sankaran ,  Xingyi Xu

IPC分类号： G01R31/00 ,  H02H5/04

CPC分类号： G01R31/006

摘要： An integrated power module combining drivers and power devices includes a diagnosis module integrated with or connected to the integrated power module. That includes protectors. The protectors provides protection against power device failure, transistor stack failure, gate drive failure, power failure, and other conditions. In a first level of diagnosis and protection, a gate driver is responsive to hard faults, such as short circuit and under voltage conditions, to disenable the power devices, for example, switching transistors of an inverter. In addition, the first level of protection includes soft faults, such as detection of overcurrent and over temperature in the power device, conditions that are merely reported to the controller, whereby the number and frequency of the events can be monitored. The second level of protection also provided by the diagnostic module may include power interlock to ensure that full power is being delivered to the integrated power module. The system permits detection of a transistor stack failure by monitoring the thermal resistance of the stack layers or junctions to detect physical degradation of the junctions and determine when the level of deterioration exceeds a pre-determined level. In addition, a power cycling failure diagnosis determines the integrity of the wirebonds, for example, wirebonds joining a silicon die to appropriate metal land patterns, as well as the integrity of stack junctions.

摘要翻译： 组合驱动器和功率器件的集成电源模块包括与集成电源模块集成或连接的诊断模块。 这包括保护者。 保护器提供防止电源设备故障，晶体管堆栈故障，门驱动故障，电源故障等条件的保护。 在第一级的诊断和保护中，栅极驱动器响应诸如短路和欠电压条件的硬故障，以使功率器件（例如逆变器的开关晶体管）失效。 此外，第一级保护包括软故障，例如检测功率器件中的过电流和过温度，仅向控制器报告的条件，从而可以监视事件的数量和频率。 由诊断模块提供的第二级保护可以包括电源互锁以确保全功率被传送到集成电源模块。 该系统允许通过监测堆叠层或结的热阻来检测晶体管堆叠故障，以检测结的物理劣化并确定劣化程度何时超过预定水平。 此外，电源循环故障诊断确定了引线的完整性，例如，将硅管芯连接到合适的金属焊盘图案上的引线以及堆叠结的完整性。

公开(公告)号：US06548931B2

公开(公告)日：2003-04-15

申请号：US09995024

申请日：2001-11-26

申请人： Feng Liang ,  John Michael Miller ,  Xingyi Xu

发明人： Feng Liang ,  John Michael Miller ,  Xingyi Xu

IPC分类号： H02K2112

CPC分类号： H02K21/044

摘要： A rotor 33, 133 for use in an electrical machine 100 having permanent magnets 34, 134 included therein, each permanent magnet 34, 134 between an adjacent pair of poles 32, 132, wherein each adjacent pole 32, 132 has an opposite polarity. Each permanent magnet 34, 134 has a magnetization polarity on its radially-outward surface 38, 138, and each adjacent permanent magnet 34, 134 has the opposite polarity on its radially-outward surface 38, 138. In addition, each pair of permanent magnets 34, 134 have the same magnetic polarity on their adjacently facing surfaces. This arrangement of permanent magnets 34, 134 may be used on electrical machines 100 having either a Lundell-type rotor 33 or salient pole rotor 133. The arrangement of permanent magnets 34, 134 increases the output power and efficiency of the electrical machine 100 while decreasing magnetic noise.