公开(公告)号：US06937483B2

公开(公告)日：2005-08-30

申请号：US10345894

申请日：2003-01-15

Applicant: Lizhi Zhu ,  Xingyi Xu

Inventor： Lizhi Zhu ,  Xingyi Xu

IPC: H02M3/335

CPC classification number: H02M3/33576

Abstract: 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.

Abstract translation: 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：US07012822B2

公开(公告)日：2006-03-14

申请号：US10360832

申请日：2003-02-07

Applicant: Lizhi Zhu ,  Xingyi Xu

Inventor： Lizhi Zhu ,  Xingyi Xu

IPC: H02M7/00

CPC classification number: B60L11/1868 ,  B60L11/12 ,  B60L2210/10 ,  H02M3/33576 ,  H02M7/5387 ,  H02M7/797 ,  H02M2001/007 ,  H02P2201/07 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7216

Abstract: Integrated power conversion systems and methods for use in an electric vehicle having an electric motor, a primary high-voltage energy source, and an auxiliary energy source including a traction inverter module operable for converting a DC current generated by the high-voltage energy source into an AC current capable of powering the electric motor, and a DC/DC converter operable to step-down a voltage of the high-voltage energy source or step-up a voltage of the auxiliary energy source, wherein the traction inverter module and the DC/DC converter may share one or more common components, such as a common high-voltage DC bus capacitor, a common DC bus bar, and/or a common high-voltage transistor.

公开(公告)号：US06630809B2

公开(公告)日：2003-10-07

申请号：US09683180

申请日：2001-11-29

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

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

IPC: H02P764

CPC classification number: H02P21/22

Abstract: 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.

Abstract translation: 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

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

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

IPC: H02P124

CPC classification number: H02P23/03 ,  B60L15/025 ,  B60L2220/12 ,  H02P21/0021 ,  H02P21/141 ,  Y02T10/643

Abstract: 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.

Abstract translation: 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

Applicant: Richard Joseph Hampo ,  Xingyi Xu

Inventor： Richard Joseph Hampo ,  Xingyi Xu

IPC: B60K100

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

Abstract: 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).

Abstract translation: 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

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

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

IPC: H02P124

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

Abstract: 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.

Abstract translation: 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：US06548931B2

公开(公告)日：2003-04-15

申请号：US09995024

申请日：2001-11-26

Applicant: Feng Liang ,  John Michael Miller ,  Xingyi Xu

Inventor： Feng Liang ,  John Michael Miller ,  Xingyi Xu

IPC: H02K2112

CPC classification number: H02K21/044

Abstract: 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.

公开(公告)号：US5739664A

公开(公告)日：1998-04-14

申请号：US596846

申请日：1996-02-05

Applicant: Doug Deng ,  Xingyi Xu

Inventor： Doug Deng ,  Xingyi Xu

IPC: B60L15/02 ,  H02P5/28

CPC classification number: B60L15/025 ,  B60L2220/12 ,  Y02T10/643

Abstract: An induction motor control system for electric vehicles having a DC power supply, an inverter, and an induction motor, includes a current control mechanism having a flux controller. The flux controller reduces the stator flux to improve the torque output of a motor at the limit of the voltage supply from the inverter. The reduction in flux is adjustable as the actual limit of voltage available to power the motor varies. A flux reference .lambda..sub.so generated according to efficiency control requirements can be adjusted by a flux weakening quantity generated by the controller in the constant power range of operation. The DC bus voltage, the rotor speed and stator flux reference values are input to the flux controller so that the motor can be operated to achieve improved torque output approaching the theoretical maximum torque output or to maximize efficiency as needed. In addition, the flux control influences generation of a stator current that improves the torque output throughout the entire range of motor speed.

Abstract translation: 具有直流电源，逆变器和感应电动机的电动汽车的感应电动机控制系统包括具有通量控制器的电流控制机构。 磁通控制器减少定子磁通量，从而提高电机的扭矩输出。 磁通量的减少是可调整的，因为可用于为电机供电的电压的实际极限变化。 根据效率控制要求生成的通量参考λ可以通过控制器在恒定功率运行范围内产生的磁通弱化量进行调整。 直流母线电压，转子速度和定子通量参考值被输入到磁通控制器，使得电动机可以被操作以实现接近理论最大转矩输出的改进的扭矩输出或者根据需要最大化效率。 此外，磁通控制影响定子电流的产生，其提高整个电动机速度范围内的转矩输出。

公开(公告)号：US5730091A

公开(公告)日：1998-03-24

申请号：US746593

申请日：1996-11-12

Applicant: Roy Edward Diehl ,  Feng Liang ,  John Michael Miller ,  Craig Hammann Stephan ,  Xingyi Xu

Inventor： Roy Edward Diehl ,  Feng Liang ,  John Michael Miller ,  Craig Hammann Stephan ,  Xingyi Xu

IPC: F01L9/04

CPC classification number: F01L9/04

Abstract: 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 slidably mounted to the valve (12) in a gap between the first and second electromagnets with first and second stop members (39, 41) limiting its travel along the valve stem (15). A third spring (52) biases the first disk (38) toward the first stop (39). The gap between the first and second stops (39, 41) is large enough to allow for manufacturing tolerances and temperature changes, with a third spring (52) acting to create soft landings. A second disk (44) is slidably mounted to the valve (12) above the third electromagnet (32) with a third 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 the valve movement during engine operation, thus reducing power requirements to actuate the valves.

Abstract translation: 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可滑动地安装到阀（12）上，第一和第二止动构件（39,41）限制其沿着阀杆（15）的行进。 第三弹簧（52）朝向第一止动件（39）偏压第一盘（38）。 第一和第二止动件（39,41）之间的间隙足够大以允许制造公差和温度变化，第三弹簧（52）用于产生软着陆。 第二盘（44）可滑动地安装在第三电磁体（32）上方的阀（12）上，第三挡块（40）限制其向第一盘（38）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，因此减少了致动阀门的功率要求。

公开(公告)号：US5642021A

公开(公告)日：1997-06-24

申请号：US566749

申请日：1995-12-04

Applicant: Feng Liang ,  John Michael Miller ,  Xingyi Xu

Inventor： Feng Liang ,  John Michael Miller ,  Xingyi Xu

IPC: H02P9/48 ,  H02P5/20

CPC classification number: H02P9/48

Abstract: A method and system for maximizing the output of an alternator in an automotive vehicle. An alternator is provided having a first rectifier connectable to a first output of the alternator to form a first winding configuration and a second rectifier connectable to a second output of the alternator to form a second winding configuration. Based on the speed of the alternator, a controller operatively couples one of the first and second rectifiers to the first and second outputs, respectively, so as to maximize output current of the alternator. If the speed of the alternator is below a predetermined speed range, the controller couples the first output of the alternator to the first rectifier. Alternatively, if the speed of the alternator is above the predetermined speed range, the controller couples the second output of the alternator to the second rectifier.

Abstract translation: 一种用于最大化机动车辆中的交流发电机的输出的方法和系统。 交流发电机具有可连接到交流发电机的第一输出的第一整流器，以形成第一绕组配置，以及可连接到交流发电机的第二输出端的第二整流器，以形成第二绕组配置。 基于交流发电机的速度，控制器分别将第一和第二整流器中的一个分别可操作地耦合到第一和第二输出端，以便最大化交流发电机的输出电流。 如果交流发电机的速度低于预定的速度范围，则控制器将交流发电机的第一输出耦合到第一整流器。 或者，如果交流发电机的速度高于预定速度范围，则控制器将交流发电机的第二输出耦合到第二整流器。