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1. 发明授权

US08497664B2 High efficiency multi-phase generator 有权
标题翻译：高效率多相发电机
公开(公告)号：US08497664B2
公开(公告)日：2013-07-30
申请号：US12622198
申请日：2009-11-19
申请人： Lei Hao , Chandra S. Namuduri
发明人： Lei Hao , Chandra S. Namuduri
IPC分类号： H02P11/00 , H02P9/00
CPC分类号： H02M7/219
摘要： A generator system that includes a six-phase AC machine and an active rectifier bridge employing low on-resistance switches, such as MOSFET switches, for converting the AC current from the machine to a DC current. The system also includes a switch control circuit to switch the MOSFET switches in synchronization with the six-phase current flow. The system determines the phase-to-ground voltages of the machine for inputs to the switch control circuit. The control circuit calculates the phase-to-phase voltages from the phase-to-ground voltages. The control circuit uses a specific control scheme to determine if each of the phase-to-phase voltages is above or below first and second predetermined threshold voltages, where if the phase-to-phase voltage is above the first threshold voltage, the control circuit closes the switch, and if the phase-to-phase voltage is below the second threshold voltage, the control circuit opens the switch.
摘要翻译：一种发电机系统，其包括六相交流电机和采用低导通电阻开关（例如MOSFET开关）的有源整流桥，用于将来自机器的交流电流转换为直流电流。该系统还包括开关控制电路，以与六相电流流同步地切换MOSFET开关。该系统确定机器的开关控制电路输入的相对地电压。控制电路根据相对地电压来计算相间电压。控制电路使用特定的控制方案来确定每个相间电压是否高于或低于第一和第二预定阈值电压，其中如果相间电压高于第一阈值电压，则控制电路关闭开关，并且如果相间电压低于第二阈值电压，则控制电路打开开关。

2. 发明申请

US20120194040A1 High Torque Density and Low Torque Ripple Actuator System 审中-公开
标题翻译：高扭矩密度和低扭矩波纹致动器系统
公开(公告)号：US20120194040A1
公开(公告)日：2012-08-02
申请号：US13017331
申请日：2011-01-31
申请人： Lei Hao , Chandra S. Namuduri
发明人： Lei Hao , Chandra S. Namuduri
IPC分类号： H02K11/04
CPC分类号： H02K3/28 , H02K21/16
摘要： A permanent magnet electric machine drive system that includes a plurality of magnets for generating a first magnetic field and a stator is disposed radially outward from the plurality of magnets for generating a magnetic field. The stator includes a plurality of stator poles separated by slots with each respective stator pole having a concentrated winding with a respective number of turns formed around each respective stator pole. Each respective concentrated winding within the stator comprising non-overlapping phases. The concentrated windings form a dual three-phase winding configuration that includes a first set of three-balanced phase windings and a second set of three-balanced phase windings. The first set of three-balanced phase windings is phase shifted in the range of 15 to 45 electrical degrees from the second set of three-balanced phase windings for reducing the torque ripple.
摘要翻译：包括用于产生第一磁场的多个磁体和定子的永磁电机驱动系统从多个磁体径向向外设置，用于产生磁场。定子包括由槽分开的多个定子极，每个相应的定子极具有集中的绕组，其中每个相应的定子极周围形成相应的匝数。定子内的每个相应的集中绕组包括非重叠相。集中绕组形成双重三相绕组配置，其包括第一组三平衡相绕组和第二组三平衡相绕组。第三组三相绕组与第三组三相绕组的相位偏移在15至45度的范围内，以减小转矩波动。

3. 发明申请

US20120181854A1 METHOD AND APPARATUS FOR ELECTRIC POWER MANAGEMENT IN A VEHICLE 有权
标题翻译：车辆电力管理的方法与装置
公开(公告)号：US20120181854A1
公开(公告)日：2012-07-19
申请号：US13006542
申请日：2011-01-14
申请人： Suresh Gopalakrishnan , Chandra S. Namuduri , Mark C. Hoinka , Sanjeev M. Naik , Lei Hao
发明人： Suresh Gopalakrishnan , Chandra S. Namuduri , Mark C. Hoinka , Sanjeev M. Naik , Lei Hao
IPC分类号： B60L1/00
CPC分类号： B60L11/1861 , B60L11/1868 , B60L2210/10 , B60L2240/12 , B60L2240/545 , Y02T10/7016 , Y02T10/7044 , Y02T10/7066 , Y02T10/7216
摘要： An on-vehicle DC/DC converter transforms high-voltage electric power originating from an on-vehicle high-voltage source to low-voltage electric power at a regulated voltage level. The low-voltage electric power is distributed by a low-voltage bus. A method for operating the DC/DC converter includes monitoring a state of charge and a temperature of a low-voltage battery connected to the low-voltage bus, setting a DC/DC converter command to a nominal voltage level as a function of the state of charge and temperature of the low-voltage battery, monitoring a total low-voltage electric load, and adjusting the DC/DC converter command to a minimum low-voltage reference voltage when the vehicle is operating below a predetermined speed and the total low-voltage electric load is greater than a predetermined load.
摘要翻译：车载DC / DC转换器将来自车载高压源的高压电力以稳定的电压水平转换为低压电力。低压电力由低压母线分配。用于操作DC / DC转换器的方法包括监视与低压总线连接的低电压电池的充电状态和温度，将DC / DC转换器命令设置为作为状态的函数的标称电压电平的低压电池的充电和温度，监测总的低压电负载，并且当车辆运行低于预定速度时，将DC / DC转换器命令调整到最小的低电压参考电压，电压电负载大于预定负载。

4. 发明申请

US20110116291A1 HIGH EFFICIENCY MULTI-PHASE GENERATOR 有权
标题翻译：高效率多相发电机
公开(公告)号：US20110116291A1
公开(公告)日：2011-05-19
申请号：US12622198
申请日：2009-11-19
申请人： Lei Hao , Chandra S. Namuduri
发明人： Lei Hao , Chandra S. Namuduri
IPC分类号： H02M7/155
CPC分类号： H02M7/219
摘要： A generator system that includes a six-phase AC machine and an active rectifier bridge employing low on-resistance switches, such as MOSFET switches, for converting the AC current from the machine to a DC current. The system also includes a switch control circuit to switch the MOSFET switches in synchronization with the six-phase current flow. The system determines the phase-to-ground voltages of the machine for inputs to the switch control circuit. The control circuit calculates the phase-to-phase voltages from the phase-to-ground voltages. The control circuit uses a specific control scheme to determine if each of the phase-to-phase voltages is above or below first and second predetermined threshold voltages, where if the phase-to-phase voltage is above the first threshold voltage, the control circuit closes the switch, and if the phase-to-phase voltage is below the second threshold voltage, the control circuit opens the switch.
摘要翻译：一种发电机系统，其包括六相交流电机和采用低导通电阻开关（例如MOSFET开关）的有源整流桥，用于将来自机器的交流电流转换为直流电流。该系统还包括开关控制电路，以与六相电流流同步地切换MOSFET开关。该系统确定机器的开关控制电路输入的相对地电压。控制电路根据相对地电压来计算相间电压。控制电路使用特定的控制方案来确定每个相间电压是否高于或低于第一和第二预定阈值电压，其中如果相间电压高于第一阈值电压，则控制电路关闭开关，并且如果相间电压低于第二阈值电压，则控制电路打开开关。

5. 发明申请

US20100259208A1 ELECTRIC MACHINE AND CONTROL METHOD 有权
标题翻译：电机及控制方法
公开(公告)号：US20100259208A1
公开(公告)日：2010-10-14
申请号：US12421001
申请日：2009-04-09
申请人： Lei Hao , Chandra S. Namuduri
发明人： Lei Hao , Chandra S. Namuduri
IPC分类号： H02P6/08 , H02K21/02
CPC分类号： H02K21/028
摘要： A method for controlling an electric machine includes measuring a motor control parameter or parameters and selectively positioning an adjustable member within the electric machine in response the motor control parameters. Selective positioning of the adjustable member varies the geometry of a flux path within the electric machine, thereby inducing a predetermined voltage output in the electric machine. An electric machine includes a rotor, a shaft operatively connected to the rotor to rotate in conjunction therewith, and a stator. An adjustable member is positioned between the rotor and the stator, and has a variable offset position that can be selected by an electronic control unit (ECU) and applied by an actuator to thereby vary the geometry of a flux path within the electric machine. The adjustable member can include a non-magnetic annular hub and magnetic radial arms and axial extensions.
摘要翻译：一种用于控制电机的方法包括测量电机控制参数或参数，并响应于电动机控制参数选择性地将可调节构件定位在电机内。可调节构件的选择性定位改变电机内的通量路径的几何形状，从而在电机中引起预定的电压输出。电机包括转子，可操作地连接到转子以与其一起旋转的轴和定子。可调节构件定位在转子和定子之间，并且具有可由电子控制单元（ECU）选择并由致动器施加的可变偏移位置，从而改变电机内的磁通路径的几何形状。可调节构件可以包括非磁性环形轮毂和磁性径向臂和轴向延伸部。

6. 发明授权

US08821224B2 Shape memory alloy active hatch vent 有权
标题翻译：形状记忆合金主动舱口
公开(公告)号：US08821224B2
公开(公告)日：2014-09-02
申请号：US12612112
申请日：2009-11-04
申请人： Paul W. Alexander , Xiujie Gao , Alan L. Browne , Mark A. Voss , Derek L. Patterson , Lei Hao , Chandra S. Namuduri , James Holbrook Brown , Aragorn Zolno , John N. Owens , Alexander Millerman , Kevin B. Rober , Suresh Gopalakrishnan , Sanjeev M. Naik
发明人： Paul W. Alexander , Xiujie Gao , Alan L. Browne , Mark A. Voss , Derek L. Patterson , Lei Hao , Chandra S. Namuduri , James Holbrook Brown , Aragorn Zolno , John N. Owens , Alexander Millerman , Kevin B. Rober , Suresh Gopalakrishnan , Sanjeev M. Naik
IPC分类号： B24D13/00 , B60H1/00 , B61D27/00 , B63J2/00
CPC分类号： B60J9/04 , B60H1/00735 , B60H1/241 , B60H1/249
摘要： A vent assembly is disposed within an interior space of a vehicle for opening and closing fluid communication between the interior space and an exterior of the vehicle. The vent assembly includes a housing defining a plurality of openings and a plurality of vanes disposed in the openings. An actuator mechanism moves the vanes between an open position and a closed position, and includes a shaped memory alloy (SMA) member for actuating the vanes between the open and closed positions. The SMA member is activated when a hatch of the vehicle is open to move the vanes into the open position and thereby open fluid communication between the interior space and the exterior to alleviate excessive air pressure buildup during closure of the hatch.
摘要翻译：排气组件设置在车辆的内部空间内，用于打开和关闭内部空间和车辆外部之间的流体连通。通气组件包括限定多个开口的壳体和设置在开口中的多个叶片。致动器机构使叶片在打开位置和关闭位置之间移动，并且包括用于在打开位置和关闭位置之间致动叶片的成形记忆合金（SMA）构件。当车辆的舱口打开以将叶片移动到打开位置并且由此打开内部空间和外部之间的流体连通以减轻在舱口闭合期间过度的空气压力积聚时，SMA构件被激活。

7. 发明授权

US08742615B2 Method and apparatus for electric power management in a vehicle 有权
标题翻译：车辆电力管理方法及装置
公开(公告)号：US08742615B2
公开(公告)日：2014-06-03
申请号：US13006542
申请日：2011-01-14
申请人： Suresh Gopalakrishnan , Chandra S. Namuduri , Mark C. Hoinka , Sanjeev M. Naik , Lei Hao
发明人： Suresh Gopalakrishnan , Chandra S. Namuduri , Mark C. Hoinka , Sanjeev M. Naik , Lei Hao
IPC分类号： B60L1/00
CPC分类号： B60L11/1861 , B60L11/1868 , B60L2210/10 , B60L2240/12 , B60L2240/545 , Y02T10/7016 , Y02T10/7044 , Y02T10/7066 , Y02T10/7216
摘要： An on-vehicle DC/DC converter transforms high-voltage electric power originating from an on-vehicle high-voltage source to low-voltage electric power at a regulated voltage level. The low-voltage electric power is distributed by a low-voltage bus. A method for operating the DC/DC converter includes monitoring a state of charge and a temperature of a low-voltage battery connected to the low-voltage bus, setting a DC/DC converter command to a nominal voltage level as a function of the state of charge and temperature of the low-voltage battery, monitoring a total low-voltage electric load, and adjusting the DC/DC converter command to a minimum low-voltage reference voltage when the vehicle is operating below a predetermined speed and the total low-voltage electric load is greater than a predetermined load.
摘要翻译：车载DC / DC转换器将来自车载高压源的高压电力以稳定的电压水平转换为低压电力。低压电力由低压母线分配。用于操作DC / DC转换器的方法包括监视与低压总线连接的低电压电池的充电状态和温度，将DC / DC转换器命令设置为作为状态的函数的标称电压电平的低压电池的充电和温度，监测总的低压电负载，并且当车辆运行低于预定速度时，将DC / DC转换器命令调整到最小的低电压参考电压，电压电负载大于预定负载。

8. 发明授权

US08436571B2 Actuator system including an active material 有权
标题翻译：执行器系统包括活性材料
公开(公告)号：US08436571B2
公开(公告)日：2013-05-07
申请号：US12784541
申请日：2010-05-21
申请人： Lei Hao , Chandra S. Namuduri , Kenneth J. Shoemaker , Suresh Gopalakrishnan , Sanjeev M. Naik , Xiujie Gao , Paul W. Alexander , Richard J. Skurkis , Tony J. Deschutter
发明人： Lei Hao , Chandra S. Namuduri , Kenneth J. Shoemaker , Suresh Gopalakrishnan , Sanjeev M. Naik , Xiujie Gao , Paul W. Alexander , Richard J. Skurkis , Tony J. Deschutter
IPC分类号： G05B11/01
CPC分类号： H01H61/0107
摘要： A linear actuator associated with an actuator system for a device includes a wire cable fabricated from an active material. The linear actuator couples to the device and to the moveable element. The active material induces strain in the linear actuator in response to an activation signal. The linear actuator translates the moveable element relative to the device in response to the induced strain. An activation controller electrically connects to the linear actuator and generates the activation signal. A position feedback sensor monitors a position of the moveable element.
摘要翻译：与用于装置的致动器系统相关联的线性致动器包括由活性材料制成的线缆。线性致动器耦合到装置和可移动元件。响应于激活信号，活性材料在线性致动器中引起应变。线性执行器响应于感应应变而相对于装置平移可移动元件。激活控制器电连接到线性致动器并产生激活信号。位置反馈传感器监测可移动元件的位置。

9. 发明申请

US20110101817A1 VARIABLE GEOMETRY ELECTRIC MACHINE 审中-公开
标题翻译：可变几何电机
公开(公告)号：US20110101817A1
公开(公告)日：2011-05-05
申请号：US12613431
申请日：2009-11-05
申请人： Lei Hao , Chandra S. Namuduri
发明人： Lei Hao , Chandra S. Namuduri
IPC分类号： H02K1/12
CPC分类号： H02K21/028
摘要： A variable geometry electric machine that includes a moveable magnetic member that varies the flux path between a rotor and a stator of the machine depending on the machine speed to control the flux between the rotor and the stator. As the speed of the machine increases, the magnetic member is selectively withdrawn in an axial direction from between the rotor and the stator so that at higher machine speeds, the back EMF of the machine is reduced so that the speed of the machine can be increased. The magnetic member includes spaced apart magnetic strips mounted to a non-magnetic hub. In one embodiment, the magnetic strips are positioned within an air gap between the rotor and the stator and against ends of teeth of the stator, where stator coils are positioned between the teeth. In another embodiment, the magnetic strips are positioned within the teeth of the stator.
摘要翻译：一种可变几何电机，其包括可移动磁性构件，其根据机器速度改变机器的转子和定子之间的通量，以控制转子和定子之间的通量。随着机器的速度增加，磁性部件从转子和定子之间的轴向选择性地被抽出，使得在较高的机器速度下，机器的反电动势减小，从而可以增加机器的速度。磁性构件包括安装到非磁性毂的间隔开的磁条。在一个实施例中，磁条定位在转子和定子之间的空气间隙中，并且定位在定子线圈位于齿之间的定子的齿的端部。在另一个实施例中，磁条定位在定子的齿内。

10. 发明申请

US20100330894A1 SHAPE MEMORY ALLOY ACTIVE HATCH VENT 有权
标题翻译：形状记忆合金活动座位通风口
公开(公告)号：US20100330894A1
公开(公告)日：2010-12-30
申请号：US12612112
申请日：2009-11-04
申请人： Paul W. Alexander , Xiujie Gao , Alan L. Browne , Mark A. Voss , Derek L. Patterson , Lei Hao , Chandra S. Namuduri , James Holbrook Brown , Aragorn Zolno , John N. Owens , Alexander Millerman , Kevin B. Rober , Suresh Gopalakrishnan , Sanjeev M. Naik
发明人： Paul W. Alexander , Xiujie Gao , Alan L. Browne , Mark A. Voss , Derek L. Patterson , Lei Hao , Chandra S. Namuduri , James Holbrook Brown , Aragorn Zolno , John N. Owens , Alexander Millerman , Kevin B. Rober , Suresh Gopalakrishnan , Sanjeev M. Naik
IPC分类号： B60H1/26
CPC分类号： B60J9/04 , B60H1/00735 , B60H1/241 , B60H1/249
摘要： A vent assembly is disposed within an interior space of a vehicle for opening and closing fluid communication between the interior space and an exterior of the vehicle. The vent assembly includes a housing defining a plurality of openings and a plurality of vanes disposed in the openings. An actuator mechanism moves the vanes between an open position and a closed position, and includes a shaped memory alloy (SMA) member for actuating the vanes between the open and closed positions. The SMA member is activated when a hatch of the vehicle is open to move the vanes into the open position and thereby open fluid communication between the interior space and the exterior to alleviate excessive air pressure buildup during closure of the hatch.
摘要翻译：排气组件设置在车辆的内部空间内，用于打开和关闭内部空间和车辆外部之间的流体连通。通气组件包括限定多个开口的壳体和设置在开口中的多个叶片。致动器机构使叶片在打开位置和关闭位置之间移动，并且包括用于在打开位置和关闭位置之间致动叶片的成形记忆合金（SMA）构件。当车辆的舱口打开以将叶片移动到打开位置并且由此打开内部空间和外部之间的流体连通以减轻在舱口闭合期间过度的空气压力积聚时，SMA构件被激活。

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