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1. 发明授权

US08392069B2 Method for managing faults in a magneto-rheological hydraulic power steering system 有权
标题翻译：用于管理磁流变液压动力转向系统中的故障的方法
公开(公告)号：US08392069B2
公开(公告)日：2013-03-05
申请号：US13362483
申请日：2012-01-31
申请人： Balarama V. Murty , Suresh Gopalakrishnan , Kenneth J. Shoemaker , Chandra S. Namuduri , Bradley Bezzina , Ebrahim Handy
发明人： Balarama V. Murty , Suresh Gopalakrishnan , Kenneth J. Shoemaker , Chandra S. Namuduri , Bradley Bezzina , Ebrahim Handy
IPC分类号： B62D5/30 , B62D5/04
CPC分类号： B62D5/063 , B62D5/065 , F04C14/08
摘要： A system and method for managing faults occurring in a power steering system in a vehicle is disclosed that has particular application for an MRHPS system to provide reliable functioning of the power steering system. The method includes detecting a fault condition in the MRHPS system and selecting a safe mode from a plurality of predetermined safe modes based on the fault condition. The plurality of predetermined safe modes include a normal operation mode, an engine speed follow mode, a manual mode, a fixed duty cycle mode and a voltage control mode. If a fault condition is detected, the method applies the safe mode to manage the fault condition.
摘要翻译：公开了一种用于管理在车辆中的动力转向系统中发生的故障的系统和方法，其具有用于提供动力转向系统的可靠功能的MRHPS系统的特定应用。该方法包括检测MRHPS系统中的故障状况，并根据故障状况从多个预定的安全模式中选择安全模式。多个预定的安全模式包括正常操作模式，发动机速度跟随模式，手动模式，固定占空比模式和电压控制模式。如果检测到故障条件，则采用安全模式管理故障状态。

2. 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。

3. 发明授权

US08606447B2 Method and apparatus to operate a powertrain system including an electric machine having a disconnected high-voltage battery 有权
标题翻译：用于操作包括具有断开的高压电池的电机的动力系统的方法和装置
公开(公告)号：US08606447B2
公开(公告)日：2013-12-10
申请号：US13113306
申请日：2011-05-23
申请人： Chandra S. Namuduri , Suresh Gopalakrishnan , Keith D. Van Maanen , Bryan M. Ludwig , Bon Ho Bae
发明人： Chandra S. Namuduri , Suresh Gopalakrishnan , Keith D. Van Maanen , Bryan M. Ludwig , Bon Ho Bae
IPC分类号： B60L11/00 , B60L11/04
CPC分类号： B60L11/14 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60W20/50 , B60W50/023 , B60W50/029 , B60W2050/0027 , F02N11/006 , Y02T10/6286 , Y02T10/70 , Y02T10/7077
摘要： A powertrain system includes an electric motor/generator unit. Upon detecting an open high-voltage switch associated with a high-voltage DC electrical bus, low-voltage electrical power is employed to energize the high-voltage DC electrical bus, control parameters are adjusted to operate the electric motor/generator unit in a fault tolerant electric generation mode, an internal combustion engine is operated to spin the electric motor/generator unit, and the electric motor/generator unit is operated in the fault tolerant electric generation mode.
摘要翻译：动力系统包括电动机/发电机单元。当检测到与高压DC电气总线相关联的开放式高压开关时，采用低压电力来激励高压DC电气总线，调整控制参数以使电动机/发电机单元处于故障状态操作内燃机来旋转电动发电机组，电动机/发电机组以容错发电模式运转。

4. 发明申请

US20120303189A1 METHOD AND APPARATUS TO OPERATE A POWERTRAIN SYSTEM INCLUDING AN ELECTRIC MACHINE HAVING A DISCONNECTED HIGH-VOLTAGE BATTERY 有权
标题翻译：操作动力系统的方法和装置，包括具有断开的高压电池的电机
公开(公告)号：US20120303189A1
公开(公告)日：2012-11-29
申请号：US13113306
申请日：2011-05-23
申请人： Chandra S. Namuduri , Suresh Gopalakrishnan , Keith D. Van Maanen , Bryan M. Ludwig , Bon Ho Bae
发明人： Chandra S. Namuduri , Suresh Gopalakrishnan , Keith D. Van Maanen , Bryan M. Ludwig , Bon Ho Bae
IPC分类号： B60W20/00
CPC分类号： B60L11/14 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60W20/50 , B60W50/023 , B60W50/029 , B60W2050/0027 , F02N11/006 , Y02T10/6286 , Y02T10/70 , Y02T10/7077
摘要： A powertrain system includes an electric motor/generator unit. Upon detecting an open high-voltage switch associated with a high-voltage DC electrical bus, low-voltage electrical power is employed to energize the high-voltage DC electrical bus, control parameters are adjusted to operate the electric motor/generator unit in a fault tolerant electric generation mode, an internal combustion engine is operated to spin the electric motor/generator unit, and the electric motor/generator unit is operated in the fault tolerant electric generation mode.
摘要翻译：动力系统包括电动机/发电机单元。当检测到与高压DC电气总线相关联的开放式高压开关时，采用低压电力来激励高压DC电气总线，调整控制参数以使电动机/发电机单元处于故障状态操作内燃机来旋转电动发电机组，电动机/发电机组以容错发电模式运转。

5. 发明授权

US07973504B2 Electric power steering control 有权
标题翻译：电动助力转向控制
公开(公告)号：US07973504B2
公开(公告)日：2011-07-05
申请号：US12179954
申请日：2008-07-25
申请人： Chandra S. Namuduri , Scott R. Kloess , Suresh Gopalakrishnan , Yat-Chung Tang
发明人： Chandra S. Namuduri , Scott R. Kloess , Suresh Gopalakrishnan , Yat-Chung Tang
IPC分类号： H02P7/00
CPC分类号： B62D5/049 , B62D5/0484
摘要： A method for improving a failure mode diagnostic of an electric power steering system by overcoming a motor electric lock condition due to position sensor signal corruption or other motor faults. If certain conditions are met, the method determines that the motor is in an electric lock condition, and then reduces a torque current command to the motor so that it is able to be rotated by a vehicle hand-wheel. Once the motor is able to be rotated, then the method determines whether certain conditions have been met to determine whether the position sensor is malfunctioning.
摘要翻译：一种用于通过克服由于位置传感器信号损坏或其他电动机故障引起的电动机电锁状态来改善电动助力转向系统的故障模式诊断的方法。如果满足某些条件，则该方法确定电动机处于电锁状态，然后减小对电动机的转矩电流指令，使其能够通过车辆手轮旋转。一旦电机能够旋转，则该方法确定是否满足某些条件以确定位置传感器是否发生故障。

6. 发明授权

US07786687B2 Apparatus and method for control of an active front steering (AFS) system 有权
标题翻译：用于控制主动前转向（AFS）系统的装置和方法
公开(公告)号：US07786687B2
公开(公告)日：2010-08-31
申请号：US12109676
申请日：2008-04-25
申请人： Chandra S. Namuduri , Suresh Gopalakrishnan , Robert R. Bolio , Ross Feller , Balarama V. Murty
发明人： Chandra S. Namuduri , Suresh Gopalakrishnan , Robert R. Bolio , Ross Feller , Balarama V. Murty
IPC分类号： H02P1/04 , H02P6/04
CPC分类号： B62D5/046
摘要： A motor control strategy for a motor in a front steering system for a vehicle that reduces vibrations from the motor being transferred to a vehicle hand-wheel. The control strategy also includes operating the electric motor in a commutation freeze mode if a position error signal is less than a first predetermined threshold by sending signals to coils of the motor to prevent to the motor from rotating, operating the electric motor in a commutation normal mode if the position error signal is greater than a second predetermined threshold that is greater than the first predetermined threshold, and operating the electric motor in an angle step mode if the position error signal is between an intermediate threshold and the second threshold where the angle step mode provides a signal to the motor to move the motor forward or backward a predetermined number of motor steps, one step at a time.
摘要翻译：一种用于车辆的前转向系统中的电动机的电动机控制策略，其减少被传递到车辆手轮的电动机的振动。控制策略还包括如果位置误差信号小于第一预定阈值，则通过向马达的线圈发送信号以防止马达旋转，以换向正常方式操作电动机，以换相冻结模式操作电动机模式，如果位置误差信号大于大于第一预定阈值的第二预定阈值，并且如果位置误差信号在中间阈值和第二阈值之间，角度步长模式下操作电动机，其中角度步模式向马达提供信号以使电机向前或向后移动预定数量的马达步骤，一次一步。

7. 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。

8. 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。

9. 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。

10. 发明申请

US20100225258A1 CONTROL OF AN ALTERNATOR-STARTER FOR A HYBRID ELECTRIC VEHICLE HAVING A DISCONNECTED HIGH-VOLTAGE BATTERY 有权
标题翻译：具有断开高压电池的混合动力车辆的起动器的控制
公开(公告)号：US20100225258A1
公开(公告)日：2010-09-09
申请号：US12710424
申请日：2010-02-23
申请人： Chandra S. Namuduri , Bryan M. Ludwig , Keith D. Van Maanen , Suresh Gopalakrishnan
发明人： Chandra S. Namuduri , Bryan M. Ludwig , Keith D. Van Maanen , Suresh Gopalakrishnan
IPC分类号： H02P27/06
CPC分类号： B60K6/485 , B60L3/0046 , B60L3/0069 , B60L3/0092 , B60L3/04 , B60L11/14 , B60L11/1868 , B60L2210/40 , B60L2270/20 , H02P27/06 , H02P2201/07 , Y02T10/6226 , Y02T10/642 , Y02T10/70 , Y02T10/7005 , Y02T10/7066 , Y02T10/7077 , Y02T10/7241
摘要： A hybrid powertrain system includes an electric motor/generator unit having a multiphase asynchronous AC machine electrically connected to a multiphase bridge inverter. A high-voltage capacitor is electrically connected between positive and negative sides of a high-voltage DC power bus. High-voltage DC bus pre-charge circuits are electrically connected between gate drive bias power supplies and the multiphase bridge inverter. A low-voltage battery electrically charges the high-voltage DC link capacitor via the gate drive bias power supplies and the high-voltage DC bus pre-charge circuits when the high-voltage energy storage system is disconnected from the high-voltage DC power bus.
摘要翻译：混合动力系统包括具有电连接到多相桥逆变器的多相异步交流电机的电动机/发电机单元。高压电容器电连接在高压直流电源总线的正极和负极之间。高压直流母线预充电电路电连接在栅极驱动偏置电源和多相桥式逆变器之间。当高压能量存储系统与高压直流电源总线断开时，低压电池通过栅极驱动偏置电源和高压直流母线预充电电路对高压直流链路电容器进行充电。

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