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81. 发明授权

US07240485B2 Power steering system 有权
标题翻译：动力转向系统
公开(公告)号：US07240485B2
公开(公告)日：2007-07-10
申请号：US11096696
申请日：2005-04-01
申请人： Chandra S. Namuduri , Balarama V. Murty , Jie Tong
发明人： Chandra S. Namuduri , Balarama V. Murty , Jie Tong
IPC分类号： F16D37/02
CPC分类号： F16D37/008 , B62D5/0478 , B62D5/063 , B62D5/065 , F16D37/02 , F16D2037/004 , F16D2500/10418
摘要： A power steering system for a vehicle includes a hydraulic pump connected to a power steering gear of the vehicle and a fluid coupling interconnecting a drive shaft of an engine of the vehicle with the hydraulic pump. The power steering system also includes an electronic controller operable to provide a variable control signal based on received input and an amplifier to receive the variable control signal and energize the fluid coupling in response thereto to vary torque transmitted via the fluid coupling.
摘要翻译：用于车辆的动力转向系统包括连接到车辆的动力转向器的液压泵和将车辆的发动机的驱动轴与液压泵相互连接的流体联轴器。动力转向系统还包括电子控制器，其可操作以基于接收到的输入提供可变控制信号，以及放大器以接收可变控制信号并响应于此来激励流体联轴器以改变经由流体联接传递的扭矩。

82. 发明授权

US07135784B2 Fast torque control of a belted alternator starter 有权
标题翻译：带式交流发电机的快速转矩控制
公开(公告)号：US07135784B2
公开(公告)日：2006-11-14
申请号：US10899212
申请日：2004-07-26
申请人： Balarama V. Murty , Chandra S. Namuduri
发明人： Balarama V. Murty , Chandra S. Namuduri
IPC分类号： F02N11/04 , F02N11/06 , H02P9/04
CPC分类号： H02P9/48 , F02D2041/2044 , F02N11/04 , F02N11/0814 , F02N2011/0896 , F02N2300/104 , Y02T10/48
摘要： A belted-alternator starter system that continuously provides pre-flux when the vehicle ignition is on and the engine is off to provide a faster torque response when the engine is turned on. The alternator/starter device operates as an alternator for providing electrical energy to vehicle electrical devices and the battery when the ignition is on and the engine is running, and operates as a starter for providing engine torque to start the engine when the engine is off and the ignition is on. The system further includes an inverter/rectifier circuit to provide AC current to the armature coils when the alternator/starter device is operating as a starter. The system provides an operating field current to the field coil when the ignition and the engine are on and provides a pre-flux field current to the field coil when the vehicle ignition is on and the engine is off.
摘要翻译：一种带式交流发电机起动器系统，其在车辆点火开启并且发动机关闭时连续地提供预通量，以在发动机接通时提供更快的转矩响应。交流发电机/起动装置用作交流发电机，用于在点火开启和发动机运行时向车辆电气设备和电池提供电能，并且当起动器起作用以在发动机关闭时提供发动机扭矩来起动发动机，点火开启。该系统还包括一个逆变器/整流器电路，用于当交流发电机/起动装置作为起动器运行时，向电枢线圈提供交流电流。当点火器和发动机接通时，该系统向励磁线圈提供工作电流，并且当车辆点火开启并且发动机关闭时向励磁线圈提供预通量磁场电流。

83. 发明授权

US07009365B1 Systems and methods for control of vehicle electrical generator 失效
标题翻译：车辆发电机控制系统和方法
公开(公告)号：US07009365B1
公开(公告)日：2006-03-07
申请号：US10931464
申请日：2004-08-31
申请人： Chandra S. Namuduri , Nick S. Kapsokavathis , Toufic M. Huazi , Kenneth J Shoemaker , David W. Walters
发明人： Chandra S. Namuduri , Nick S. Kapsokavathis , Toufic M. Huazi , Kenneth J Shoemaker , David W. Walters
IPC分类号： H02P7/36
CPC分类号： H02P9/305
摘要： Systems, methods and devices are described for controlling a vehicle electrical generator. A regulator for controlling a generator in response to an input signal received from a control module suitably includes a discriminator module, a processing module and a switching circuit. The discriminator determines whether the regulator is operating in voltage or torque control mode. If the input signal is a voltage control, the output generator produces a modulation signal to produce a desired voltage between two battery terminals. If the input signal is a torque control, the output generator produces one or more modulation signals (e.g. pulse width modulation signals) to control the torque of the generator. The modulation signals are applied across a field coil or other controllable element of the generator by a switching circuit that applies positive and/or negative voltage from the battery terminals as appropriate.
摘要翻译：描述了用于控制车辆发电机的系统，方法和装置。用于响应于从控制模块接收到的输入信号来控制发电机的调节器适当地包括鉴别器模块，处理模块和开关电路。鉴频器确定调节器是否在电压或转矩控制模式下工作。如果输入信号是电压控制，则输出发生器产生调制信号以在两个电池端子之间产生期望的电压。如果输入信号是转矩控制，则输出发生器产生一个或多个调制信号（例如脉宽调制信号），以控制发电机的转矩。调制信号通过适当地从电池端子施加正和/或负电压的开关电路施加在发电机的励磁线圈或其他可控元件上。

84. 发明授权

US06838852B1 Plug and play electric machine 有权
标题翻译：即插即用电机
公开(公告)号：US06838852B1
公开(公告)日：2005-01-04
申请号：US10404851
申请日：2003-04-01
申请人： Chandra S. Namuduri
发明人： Chandra S. Namuduri
IPC分类号： G05B19/042 , G05B23/02
CPC分类号： G05B19/0423 , G05B2219/25296
摘要： A plug and play electric machine interfaces with a plug and play controller. A memory device stores configuration parameters for operating an electric machine that are accessed by the plug and play controller. A plug and play connector connects to the plug and play controller. A sensor monitors a property of the electric machine. A sensor connector communicates with the sensor and the plug and play controller. The configuration parameters are transmitted to the plug and play controller during a power-up sequence of the electric machine. The plug and play electric machine connects to different plug and play controllers. A power connector is associated with the electric machine and communicates with a power driver included in the plug and play controller. The plug and play connector, sensor connector, and power connector form an integrated connector. The plug and play controller updates the configuration parameters based on feedback from the sensor.

85. 发明授权

US08816556B2 Optimized electric machine for smart actuators 有权
标题翻译：智能执行器优化电机
公开(公告)号：US08816556B2
公开(公告)日：2014-08-26
申请号：US12409672
申请日：2009-03-24
申请人： Lei Hao , Chandra S. Namuduri , Balarama V. Murty
发明人： Lei Hao , Chandra S. Namuduri , Balarama V. Murty
IPC分类号： H02K1/00 , H02K3/00 , H02K1/30 , H02K29/03 , H02K21/16 , H02K21/12 , H02K1/27 , H02K7/08
CPC分类号： H02K21/12 , H02K1/27 , H02K1/278 , H02K1/30 , H02K7/08 , H02K7/083 , H02K7/088 , H02K21/16 , H02K29/03
摘要： A single stator electric machine includes a plurality of magnets for generating a first magnetic field. Each respective magnet represents a respective rotor pole. A magnet holder retains the plurality of magnets. A stator is disposed radially outward from the plurality of magnets for generating a second magnetic field. The stator includes a plurality of stator poles separated by slots with each of the stator poles having a concentrated winding with a respective number of turns formed around each respective stator pole. Each respective concentrated winding within the stator comprises non-overlapping phases which increase an active length of the windings of the stator and reduce an overhang of each respective winding with respect to each stator pole for improving torque efficiency. A number of rotor poles is at least eight and the number of rotor poles and a number of stator slots have a least common multiple of at least 36.
摘要翻译：单个定子电机包括用于产生第一磁场的多个磁体。各个磁体表示相应的转子极。磁体保持器保持多个磁体。定子从多个磁体径向向外设置，用于产生第二磁场。定子包括由槽分开的多个定子极，每个定子极具有集中的绕组，每个相应的定子极周围形成相应的匝数。定子内的每个各自的集中绕组包括非重叠相，其增加定子的绕组的有效长度并且相对于每个定子极减小每个相应绕组的悬伸以提高转矩效率。多个转子极点至少为8个，转子极数和多个定子槽具有至少36的最小公倍数。

86. 发明授权

US08664822B2 Bi-permanent magnets in synchronous machines 有权
标题翻译：同步电机中的双永久磁铁
公开(公告)号：US08664822B2
公开(公告)日：2014-03-04
申请号：US13483261
申请日：2012-05-30
申请人： Rajeev Vyas , Thomas Wolfgang Nehl , Alexandru Rajala , Chandra S. Namuduri
发明人： Rajeev Vyas , Thomas Wolfgang Nehl , Alexandru Rajala , Chandra S. Namuduri
IPC分类号： H02K21/12
CPC分类号： H02K1/2766
摘要： A rotor for an interior permanent synchronous machine. A rotor core structure includes an outer cylindrical wall juxtaposed to an air gap. A plurality of arcuately-shaped cavities is formed within the rotor core structure. The plurality of arcuately-shaped cavities is substantially concentrically layered with respect to an outer cylindrical wall of the rotor core structure. Each arcuately-shaped cavity extending between first and second end sections is juxtaposed to the outer cylindrical surface wall of the rotor structure and includes an intervening center section. A plurality of permanent magnets is inserted within the plurality of arcuately-shaped cavities. Each first end section retains a respective first permanent magnet having a first magnet field strength. Each second end section retains a respective second permanent magnet having the first magnetic field strength. Each center section retains a respective third permanent magnet having a second magnet field strength less than the first magnetic field strength.
摘要翻译：用于内部永久同步电机的转子。转子芯结构包括与气隙并置的外圆筒壁。在转子芯结构内形成多个弧形空腔。多个弧形空腔相对于转子芯结构的外圆筒壁基本上同心地分层。在第一和第二端部之间延伸的每个弧形腔并置到转子结构的外圆柱形表面壁上并且包括中间部分。多个永久磁铁插入多个弧形腔内。每个第一端部分保持具有第一磁场强度的相应的第一永磁体。每个第二端部保持具有第一磁场强度的相应的第二永磁体。每个中心部分保持具有小于第一磁场强度的第二磁场强度的相应的第三永磁体。

87. 发明授权

US08428819B2 Suspension system with optimized damper response for wide range of events 有权
标题翻译：具有优化的阻尼器响应的悬架系统用于各种事件
公开(公告)号：US08428819B2
公开(公告)日：2013-04-23
申请号：US12604642
申请日：2009-10-23
申请人： Nikolai K. Moshchuk , Chandra S. Namuduri , Flavio Nardi , Jihan Ryu , Richard J. Knoll , William Golpe
发明人： Nikolai K. Moshchuk , Chandra S. Namuduri , Flavio Nardi , Jihan Ryu , Richard J. Knoll , William Golpe
IPC分类号： B60G23/00
CPC分类号： B60G17/08 , B60G2400/202 , B60G2500/104 , F16F9/44
摘要： An analytical methodology for the specification of progressive optimal compression damping of a damper of a suspension system to negotiate a multiplicity of severe events, yet provides very acceptable ride quality and handling during routine events. The damping response of the damper is optimized based upon a progressive optimal constrained events damping function derived from a low envelope curve incorporated with a predetermined damper force acting on the wheel center below a predetermined wheel center velocity, u1, based on ride and handling considerations for a given vehicle or vehicle model according to the prior art methodology, whereby the low envelope curve is constructed utilizing a one degree of freedom nonlinear mechanical system model or a quarter car nonlinear mechanical system model.
摘要翻译：用于规范悬架系统阻尼器的渐进最佳压缩阻尼的分析方法，以协商多种严重事件，但在日常事件期间提供非常可接受的乘坐质量和处理。阻尼器的阻尼响应是基于一个渐进的最优约束事件阻尼函数进行优化的，该阻尼函数是从一个低包络线引出的，该低包络曲线基于一个预定的阻尼力，该预定的阻尼力作用在一个预定的车轮中心速度u1以下，根据现有技术方法的给定车辆或车辆模型，由此利用一个自由度非线性机械系统模型或四分之一车辆非线性机械系统模型构造低包络线曲线。

88. 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。

89. 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。

90. 发明授权

US08089191B2 Electric machine and control method 有权
标题翻译：电机及控制方法
公开(公告)号：US08089191B2
公开(公告)日：2012-01-03
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： H02K23/46
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。

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