公开(公告)号：US20050087409A1

公开(公告)日：2005-04-28

申请号：US10691365

申请日：2003-10-22

申请人： Alan Browne ,  Nancy Johnson ,  Chandra Namuduri

发明人： Alan Browne ,  Nancy Johnson ,  Chandra Namuduri

IPC分类号： F16F9/53

CPC分类号： F16F9/535

摘要： A magnetorheological damper device is provided having an increased shear interface area per unit volume of the device, which enhances the stroking force of the damper. The damper generally includes a cylindrically shaped housing; a magnetorheological fluid disposed in the cylindrically shaped housing; a piston assembly disposed within the cylindrically shaped housing in sliding engagement with the cylindrically shaped housing defining a first chamber and a second chamber, wherein the piston assembly comprises a plurality of cylindrically shaped fluid passageways extending from the first chamber to the second chamber, and an electromagnet; and a power supply in electrical communication with the electromagnet.

摘要翻译： 提供了一种磁流变阻尼器装置，其具有每单位体积的装置的增加的剪切界面面积，这增强了阻尼器的抚平力。 阻尼器通常包括圆柱形壳体; 设置在所述圆筒形壳体中的磁流变流体; 活塞组件，设置在所述圆柱形壳体内，与所述圆柱形壳体滑动接合，所述壳体限定第一腔室和第二腔室，其中所述活塞组件包括从所述第一腔室延伸到所述第二腔室的多个圆柱形流体通道， 电磁铁 以及与电磁体电连通的电源。

公开(公告)号：US20070063566A1

公开(公告)日：2007-03-22

申请号：US11221005

申请日：2005-09-07

申请人： Alan Browne ,  Chandra Namuduri ,  John Ulicny ,  Nancy Johnson

发明人： Alan Browne ,  Chandra Namuduri ,  John Ulicny ,  Nancy Johnson

IPC分类号： A47C1/023 ,  F16M13/00

CPC分类号： B60N2/42736 ,  B60N2/4221 ,  B60N2/4228

摘要： A seat assembly including a seat stroking device for a vehicle and methods of use include a seat adjustment mechanism comprising a stationary rail fixedly attached to a vehicle floor and a movable rail slidably engaged with the stationary rail, wherein the seat adjustment mechanism is adapted to position a seat; an active material based stroking device having one end fixedly attached to a non-movable portion and an other end in operative communication with the movable rail; and a controller in operative communication with the active material, wherein the controller is operable to selectively apply an activation signal to the active material and effect a change in an attribute of the active material, wherein the change in the attribute results in force and acceleration adjusting energy absorption.

摘要翻译： 一种座椅组合件，包括用于车辆的座椅抚摸装置和使用方法，包括座椅调节机构，其包括固定地连接到车辆地板的固定轨道和与所述静止轨道可滑动地接合的活动轨道，其中所述座椅调节机构适于定位 座位; 基于活动材料的划线装置，其一端固定地附接到不可移动部分，另一端与所述活动导轨可操作地连通; 以及控制器，其与所述活性材料可操作地通信，其中所述控制器可操作以选择性地向所述活性材料施加激活信号并且影响所述活性材料的属性的变化，其中所述属性的变化导致强制和加速度调节 能量吸收。

公开(公告)号：US20050200984A1

公开(公告)日：2005-09-15

申请号：US11078644

申请日：2005-03-11

申请人： Alan Browne ,  Jan Aase ,  Nancy Johnson ,  James O'Kane ,  Chandra Namuduri ,  Andrew Keefe

发明人： Alan Browne ,  Jan Aase ,  Nancy Johnson ,  James O'Kane ,  Chandra Namuduri ,  Andrew Keefe

IPC分类号： G02F1/153

CPC分类号： G02B26/0825 ,  B60R1/08 ,  H01L41/0926

摘要： A mirror assembly includes a reflective surface disposed on a substrate; an actuator in operative communication with at least a portion of the substrate, wherein the actuator comprises an active material; and a controller in operative communication with the active material, wherein the controller is operable to selectively apply an activation signal to the active material and effect a change in a property of the active material, wherein the change in the property results in movement of the at least the portion of the substrate from a first position to a second position.

摘要翻译： 反射镜组件包括设置在基板上的反射表面; 与所述基板的至少一部分可操作地连通的致动器，其中所述致动器包括活性材料; 以及控制器，其与所述活性材料可操作地通信，其中所述控制器可操作以选择性地将活化信号施加到所述活性材料并且影响所述活性材料的性质的变化，其中所述性质的变化导致所述活性材料的移动 将所述基板的至少一部分从第一位置移动到第二位置。

公开(公告)号：US20050087408A1

公开(公告)日：2005-04-28

申请号：US10691091

申请日：2003-10-22

申请人： Chandra Namuduri ,  Alan Browne ,  Nancy Johnson

发明人： Chandra Namuduri ,  Alan Browne ,  Nancy Johnson

IPC分类号： F16D57/00 ,  F16F9/53

CPC分类号： F16F9/535

摘要： A magnetorheological damper device is provided having an increased shear interface area per unit volume of device, which enhances the stroking force of the damper. The damper generally includes a thrust shaft comprising an external threaded surface in threaded communication with a sealed housing, wherein at least one end of the thrust shaft extends from the housing; a plurality of rotors and stators alternatingly arranged in the housing, wherein the plurality of rotors comprise a planar surface with a centrally located aperture that is rotatably engaged with the threaded surface of the thrust shaft, wherein the plurality of stators is fixedly attached to the housing and comprises a centrally located aperture dimensioned to accommodate vertical movement of the thrust shaft and a planar surface substantially parallel to the planar surface of the at least one rotor, and wherein alternating stators comprises a permanent magnet or an electromagnet; and a magnetorheological fluid disposed in a space defined by the plurality of rotors and stators.

摘要翻译： 提供了一种磁流变阻尼器装置，其具有每单位体积装置增加的剪切界面面积，这增强了阻尼器的抚摸力。 阻尼器通常包括推力轴，其包括与密封壳体螺纹连通的外螺纹表面，其中推力轴的至少一端从壳体延伸; 多个转子和定子，其交替地布置在壳体中，其中多个转子包括具有中心定位的孔的平坦表面，其可旋转地与推力轴的螺纹表面接合，其中多个定子固定地附接到壳体 并且包括中心定位的孔，其尺寸适于容纳推力轴的垂直运动和基本上平行于至少一个转子的平坦表面的平面，并且其中交替定子包括永磁体或电磁体; 以及设置在由所述多个转子和定子限定的空间中的磁流变流体。

公开(公告)号：US20070013215A1

公开(公告)日：2007-01-18

申请号：US11180801

申请日：2005-07-13

申请人： Alan Browne ,  Chandra Namuduri

发明人： Alan Browne ,  Chandra Namuduri

IPC分类号： A47C1/08

CPC分类号： B60N2/2806 ,  B60N2/2887

摘要： A child seat anchor assembly includes a fixed portion, wherein the fixed portion is secured to a motor vehicle structural member or a child seat structural member; a latchable portion for releasable engagement with a child seat or a motor vehicle; an energy absorbing mechanism disposed between and in operative communication with the fixed portion and the latchable portion, wherein the energy absorbing mechanism comprises an active material; and a controller in operative communication with the active material, wherein the controller is operable to selectively apply an activation signal to the active material and effect a change in an attribute of the active material, wherein the change in the attribute results in force and acceleration adjusting energy absorption.

摘要翻译： 儿童座椅锚固组件包括固定部分，其中固定部分固定到机动车结构构件或儿童座椅结构构件; 用于与儿童座椅或机动车辆可释放地接合的可闩锁部分; 能量吸收机构，其设置在所述固定部分和所述可闩锁部分之间并且与所述可闩锁部分操作连通，其中所述能量吸收机构包括活性材料; 以及控制器，其与所述活性材料可操作地通信，其中所述控制器可操作以选择性地向所述活性材料施加激活信号并且影响所述活性材料的属性的变化，其中所述属性的变化导致强制和加速度调节 能量吸收。

公开(公告)号：US20050087410A1

公开(公告)日：2005-04-28

申请号：US10691372

申请日：2003-10-22

申请人： Chandra Namuduri ,  Alan Browne ,  John Ulicny

发明人： Chandra Namuduri ,  Alan Browne ,  John Ulicny

IPC分类号： F16F9/36 ,  F16F9/53

CPC分类号： F16F9/36 ,  F16F9/535

摘要： A tunable and reusable impact energy absorbing system and process includes a control structure comprising a sleeve having an outer surface fixedly attached to a chassis, a seal at each end of the sleeve, a magnetorheological fluid disposed between the seals, and a coil in proximity to the magnetorheological fluid, wherein the seal and the magnetorheological fluid are in sliding engagement with a support member, wherein the impact surface is fixedly attached to a support member. Varying the current to the coil alters the magnetic field upon the magnetorheological fluid, which can be used to tune the yield stress of the sliding engagement.

摘要翻译： 可调和可重复使用的冲击能量吸收系统和方法包括控制结构，该控制结构包括具有固定地连接到底盘的外表面的套筒，套筒每端的密封件，设置在密封件之间的磁流变流体， 所述磁流变流体，其中所述密封件和所述磁流变流体与支撑构件滑动接合，其中所述冲击表面固定地附接到支撑构件。 改变线圈的电流可以改变磁流变流体上的磁场，磁流变流体可用于调节滑动接合的屈服应力。

公开(公告)号：US20070215406A1

公开(公告)日：2007-09-20

申请号：US11375436

申请日：2006-03-14

申请人： Mike McDonald ,  Chandra Namuduri

发明人： Mike McDonald ,  Chandra Namuduri

IPC分类号： B62D5/06

CPC分类号： F02N19/00 ,  F02N11/00 ,  F02N2200/0808

摘要： A control system that reduces a load on an engine during a cranking event includes a first module that determines whether the engine is being cranked. A second module regulates a power steering clutch that is driven by the engine to a disengaged state when the engine is being cranked.

摘要翻译： 在起动事件期间减少发动机负载的控制系统包括确定发动机是否正在起动的第一模块。 当发动机起动时，第二模块调节由发动机驱动到脱离状态的动力转向离合器。

公开(公告)号：US20070142145A1

公开(公告)日：2007-06-21

申请号：US11286688

申请日：2005-11-23

申请人： Chandra Namuduri

发明人： Chandra Namuduri

IPC分类号： F16H7/08 ,  F16H7/22

CPC分类号： F16H7/1236 ,  F16H7/1281 ,  F16H2007/0806

摘要： The apparatus of the present invention provides an improved automotive accessory drive system. The automotive accessory drive system including a drive pulley operatively connected to an engine, and a plurality of driven pulleys operatively connected to one of a plurality of driven devices. A flexible drive belt connectively couples the drive pulley and the plurality of driven pulleys, and is operable to transfer drive forces therebetween. The automotive accessory drive system also includes a flexible drive belt tensioner operable to maintain frictional engagement between the flexible drive belt and the drive pulley and at least one of the driven pulleys. The flexible drive belt tensioner has a damper element that preferably includes a damper housing, and a variable viscosity fluid disposed within the damper housing. The variable viscosity fluid is configured to provide a variable dampening rate and is selectively operable to lock the flexible drive belt tensioner.

摘要翻译： 本发明的装置提供了一种改进的汽车附件驱动系统。 汽车附件驱动系统包括可操作地连接到发动机的驱动皮带轮和可操作地连接到多个从动装置中的一个的多个从动皮带轮。 柔性传动皮带将传动皮带轮和多个从动皮带轮连接起来，并可操作以传递其间的驱动力。 汽车附件驱动系统还包括柔性驱动带张紧器，其可操作以保持柔性驱动带与驱动皮带轮之间的摩擦接合以及从动皮带轮中的至少一个。 柔性传动带张紧器具有阻尼元件，该阻尼元件优选地包括阻尼器壳体和设置在阻尼器壳体内的可变粘度流体。 可变粘度流体被配置为提供可变的润滑速率，并且可选择性地操作以锁定柔性驱动带张紧器。

公开(公告)号：US20070045068A1

公开(公告)日：2007-03-01

申请号：US11440909

申请日：2006-05-25

申请人： Chandra Namuduri ,  David Rule ,  Kenneth Shoemaker

发明人： Chandra Namuduri ,  David Rule ,  Kenneth Shoemaker

IPC分类号： F16F15/03

CPC分类号： F16F9/535

摘要： A damper assembly is provided including a linear to rotary motion conversion mechanism having an outer tube member. An inner tube member is reciprocally movable and at least partially disposed within the outer tube member. The inner tube member is adapted for linear translation in a first and a second direction. A rotatable shaft is disposed within the inner tube member. The translation of the inner tube member produces a rotation of the shaft. Also included within the damper assembly is a damping mechanism having a rotor fixed to the shaft. A coil is configured to generate an electromagnetic field in response to an applied current. A magneto-rheological fluid is in contact with the rotor, and has a variable viscosity in the presence of the electromagnetic field that, in turn, provides variable resistance to rotation of the rotor and translation of the inner tube member within the outer tube member.

摘要翻译： 提供一种阻尼器组件，其包括具有外管构件的线性至旋转运动转换机构。 内管构件可往复运动并且至少部分地设置在外管构件内。 内管构件适于在第一和第二方向上进行线性平移。 可旋转轴设置在内管构件内。 内管构件的平移产生轴的旋转。 还包括在阻尼器组件内的是具有固定到轴的转子的阻尼机构。 线圈被配置为响应于施加的电流产生电磁场。 磁流变流体与转子接触，并且在存在电磁场的情况下具有可变的粘度，这又提供对转子的旋转的可变阻力和内管构件在外管构件内的平移。

公开(公告)号：US20060259221A1

公开(公告)日：2006-11-16

申请号：US11352578

申请日：2006-02-10

申请人： Balarama Murty ,  Chandra Namuduri ,  Kenneth Shoemaker

发明人： Balarama Murty ,  Chandra Namuduri ,  Kenneth Shoemaker

IPC分类号： 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.