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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. 发明授权

US07571040B2 Method and apparatus for controlling a magneto-rheological power steering coupling 有权
标题翻译：用于控制磁流变动力转向联轴器的方法和装置
公开(公告)号：US07571040B2
公开(公告)日：2009-08-04
申请号：US11352578
申请日：2006-02-10
申请人： Balarama V. Murty , Chandra S. Namuduri , Kenneth J. Shoemaker
发明人： Balarama V. Murty , Chandra S. Namuduri , Kenneth J. Shoemaker
IPC分类号： A01B69/00 , B62D5/04
CPC分类号： B62D5/063 , B62D5/0478 , B62D5/065
摘要： A method of controlling a magneto-rheological power steering coupling is provided. The method is to be employed by a controller and is initiated upon engine start-up. The method includes initializing calibration parameters and reading a plurality of input values. Subsequently, a hand wheel angle rate value is calculated from one of said plurality of input values. A pump speed command value is calculated as a function of at least the hand wheel angle rate value. A pump speed error value is then calculated, and a proportional-integral-derivative calculation is performed acting on the pump speed error value to determine a pulse width modulation duty cycle value. The duty cycle value is then output to a power driver to provide a control signal to the magneto-rheological power steering coupling. Also provided is control system and apparatus operable to perform the functions described hereinabove.
摘要翻译：提供了一种控制磁流变动力转向联轴器的方法。该方法由控制器使用，并且在发动机起动时启动。该方法包括初始化校准参数并读取多个输入值。随后，从所述多个输入值之一计算手轮角度速率值。泵速指令值被计算为至少手轮角速率值的函数。然后计算泵速度误差值，并根据泵速度误差值进行比例积分微分计算，以确定脉冲宽度调制占空比值。然后将占空比值输出到功率驱动器，以向磁流变动力转向联轴器提供控制信号。还提供了可操作以执行上述功能的控制系统和装置。

3. 发明申请

US20120130594A1 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：US20120130594A1
公开(公告)日：2012-05-24
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 , B62D6/00
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。

4. 发明授权

US08150579B2 Pump speed command generation algorithm for magnetorheological power steering coupling 有权
标题翻译：用于磁流变动力转向联轴器的泵速指令生成算法
公开(公告)号：US08150579B2
公开(公告)日：2012-04-03
申请号：US12412705
申请日：2009-03-27
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： B62D5/06
CPC分类号： B62D5/063 , B62D5/065 , F04C14/08
摘要： A method for determining a speed of a power steering pump used in a power steering assembly of a vehicle that has particular application in a vehicle using a magneto-rheological hydraulic power steering (MRHPS) system for improving the fuel efficiency and ride comfort of the vehicle, and for reliable functioning of the power steering system. The method includes determining an angle of rotation of the steering wheel and a rate of change of the angle of rotation of the steering wheel based on the angle of rotation of the steering wheel of the vehicle. The method further includes determining the speed of the vehicle and the speed of the power steering pump based on the angle of rotation of the steering wheel, the rate of change of the angle of rotation of the steering wheel and the speed of the vehicle.
摘要翻译：一种用于确定在车辆的动力转向组件中使用的动力转向泵的速度的方法，其特别应用于使用磁流变液压动力转向（MRHPS）系统的车辆中，以改善车辆的燃料效率和乘坐舒适性，并且用于动力转向系统的可靠功能。该方法包括基于车辆的方向盘的旋转角度确定方向盘的旋转角度和方向盘的旋转角度的变化率。该方法还包括基于方向盘的旋转角度，方向盘的旋转角度和车辆速度的变化率来确定车辆的速度和动力转向泵的速度。

5. 发明申请

US20100250069A1 PUMP SPEED COMMAND GENERATION ALGORITHM FOR MAGNETORHEOLOGICAL POWER STEERING COUPLING 有权
标题翻译：用于磁电动力转向联轴器的泵速度指令生成算法
公开(公告)号：US20100250069A1
公开(公告)日：2010-09-30
申请号：US12412705
申请日：2009-03-27
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： B62D5/04
CPC分类号： B62D5/063 , B62D5/065 , F04C14/08
摘要： A method for determining a speed of a power steering pump used in a power steering assembly of a vehicle that has particular application in a vehicle using a magneto-rheological hydraulic power steering (MRHPS) system for improving the fuel efficiency and ride comfort of the vehicle, and for reliable functioning of the power steering system. The method includes determining an angle of rotation of the steering wheel and a rate of change of the angle of rotation of the steering wheel based on the angle of rotation of the steering wheel of the vehicle. The method further includes determining the speed of the vehicle and the speed of the power steering pump based on the angle of rotation of the steering wheel, the rate of change of the angle of rotation of the steering wheel and the speed of the vehicle.
摘要翻译：一种用于确定在车辆的动力转向组件中使用的动力转向泵的速度的方法，其特别应用于使用磁流变液压动力转向（MRHPS）系统的车辆中，以改善车辆的燃料效率和乘坐舒适性，并且用于动力转向系统的可靠功能。该方法包括基于车辆的方向盘的旋转角度确定方向盘的旋转角度和方向盘的旋转角度的变化率。该方法还包括基于方向盘的旋转角度，方向盘的旋转角度和车辆速度的变化率来确定车辆的速度和动力转向泵的速度。

6. 发明授权

US07422093B2 Magneto-rheological coupling 有权
标题翻译：磁流变耦合
公开(公告)号：US07422093B2
公开(公告)日：2008-09-09
申请号：US11341786
申请日：2006-01-27
申请人： Balarama V. Murty , Chandra S. Namuduri , Kenneth J. Shoemaker
发明人： Balarama V. Murty , Chandra S. Namuduri , Kenneth J. Shoemaker
IPC分类号： F16D27/00
CPC分类号： F16D37/02 , F16D2037/004
摘要： A magneto-rheological coupling (MRC) having an input assembly and an output member. The output member includes a generally cylindrical drum portion and a hub portion extending radially inwardly therefrom. The generally cylindrical drum portion has a low magnetically permeable region having a plurality of passages defined therein. Additionally, a plurality of apertures are defined by the hub portion. The plurality of passages and apertures enhance the flow of magneto-rheological fluid (MRF) within the MRC. The drum portion has a surface treatment of tungsten-carbide to enhance wear resistance. Additionally, the drum portion has an average roughness, or Ra value, of between 10 and 250 microns.
摘要翻译：具有输入组件和输出构件的磁流变耦合（MRC）。输出构件包括大致圆柱形的鼓部分和从其径向向内延伸的毂部分。大致圆柱形的滚筒部分具有低导磁区域，其中限定了多个通道。此外，多个孔由轮毂部分限定。多个通道和孔径增强MRC内磁流变流体（MRF）的流动。鼓部分具有碳化钨的表面处理以增强耐磨性。此外，滚筒部分具有10至250微米的平均粗糙度或Ra值。

7. 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。

8. 发明申请

US20100326070A1 ACTUATOR SYSTEM INCLUDING AN ACTIVE MATERIAL 有权
标题翻译：包括活性材料的执行器系统
公开(公告)号：US20100326070A1
公开(公告)日：2010-12-30
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： F03G7/06
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. 发明授权

US08901934B2 Diagnosis of HEV/EV battery disconnect system 有权
标题翻译： HEV / EV电池断开系统诊断
公开(公告)号：US08901934B2
公开(公告)日：2014-12-02
申请号：US13198340
申请日：2011-08-04
申请人： Andrew J. Namou , Chandra S. Namuduri , Kenneth J. Shoemaker
发明人： Andrew J. Namou , Chandra S. Namuduri , Kenneth J. Shoemaker
IPC分类号： G01R31/327 , B60W20/00 , G01R31/00
CPC分类号： G01R31/3275 , G01R31/006 , G01R31/3278
摘要： A circuit that detects if contacts in an HV contactor have been welded or stuck closed. The circuit includes a controller that generates a short duration pulse signal that closes a driver switch and allows current flow through a coil in the HV contactor. The current flow is converted to a voltage by a sensor, where the voltage is received by the controller. The controller uses the voltage, such as by comparing the voltage to a stored representative voltage of the coil current for when the HV contactor is open, to determine whether the HV contactor is closed, and possibly welded or stuck closed, or partially closed. The sensor can be the driver switch or another device, such as a resistor.
摘要翻译：检测HV接触器中的触点是否被焊接或卡住的电路闭合。该电路包括一个控制器，该控制器产生一个短路脉冲信号，该脉冲信号关闭驱动器开关并允许电流流经HV接触器中的一个线圈。电流通过传感器转换为电压，其中控制器接收电压。控制器使用电压，例如通过将电压与线圈电流的存储的代表性电压进行比较，以便在HV接触器打开时确定HV接触器是否闭合，并且可能焊接或卡住闭合或部分闭合。传感器可以是驱动器开关或其他器件，如电阻器。

10. 发明授权

US09021793B2 Method for converting constituent gases in an internal combustion engine exhaust gas mixture and a vehicle incorporating the same 有权
标题翻译：用于转换内燃机废气混合物中的构成气体的方法和包含其的车辆
公开(公告)号：US09021793B2
公开(公告)日：2015-05-05
申请号：US13601184
申请日：2012-08-31
申请人： Chang H. Kim , Eugene V. Gonze , Chandra S. Namuduri , Kenneth J. Shoemaker
发明人： Chang H. Kim , Eugene V. Gonze , Chandra S. Namuduri , Kenneth J. Shoemaker
IPC分类号： F01N3/10 , F01N3/08 , F01N3/20 , F01N9/00 , B60W10/06 , B60W10/26 , B60W10/30 , B60W30/18 , F01N13/00
CPC分类号： F01N3/0835 , B60W10/06 , B60W10/26 , B60W10/30 , B60W30/18127 , B60W2030/1809 , B60Y2300/474 , B60Y2400/114 , F01N3/0871 , F01N3/2013 , F01N3/2066 , F01N9/00 , F01N13/009 , F01N2240/16 , F01N2610/02 , F01N2610/03 , F01N2900/1602 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47 , Y02T10/54 , Y02T10/76
摘要： A vehicle includes an internal combustion engine operatively disposed therein. The engine generates exhaust gases. The vehicle further includes an alternator operatively connected to the engine. The alternator produces DC power. An ultracapacitor is operatively connected to the alternator to receive electrical energy therefrom. The vehicle still further includes an exhaust gas treatment system operatively connected to the engine to receive exhaust gases therefrom. The exhaust gas treatment system includes an electrically heated catalyst (EHC) device electrically connected to the ultracapacitor to selectively heat a catalytic exhaust system component. The ultracapacitor stores energy converted by the alternator from vehicle kinetic energy and releases the stored energy to heat the EHC.
摘要翻译：车辆包括可操作地设置在其中的内燃机。发动机产生废气。车辆还包括可操作地连接到发动机的交流发电机。交流发电机产生直流电源。超级电容器可操作地连接到交流发电机以从其接收电能。车辆还包括可操作地连接到发动机以从其接收废气的废气处理系统。排气处理系统包括电连接到超级电容器的电加热催化剂（EHC）装置，以选择性地加热催化排气系统部件。超级电容器存储由交流发电机从车辆动能转换的能量，并释放储存的能量以加热EHC。

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