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1. 发明申请

US20130001030A1 BI-STABLE SHOCK ABSORBER ASSEMBLY 有权
标题翻译：双稳态震动吸收器总成
公开(公告)号：US20130001030A1
公开(公告)日：2013-01-03
申请号：US13511004
申请日：2010-11-23
申请人： Janusz Goldasz , Thomas W. Nehl
发明人： Janusz Goldasz , Thomas W. Nehl
IPC分类号： F16F9/50 , F16F9/348 , F16F9/19
CPC分类号： F16F9/464 , F16F2222/06
摘要： A shock absorber assembly including a fluid for absorbing forces between the body and the wheel of a motor vehicle. The shock absorber includes a valve having a resilient disc engaging a piston for impeding the passage of fluid through the aperture of the piston. A bi-stable solenoid is disposed in the housing and is interconnected with the resilient disc of the valve. The bi-stable solenoid's armature is moveable between a first stable position for applying a first biasing force against the resilient disc of the valve and a second stable position for applying a second biasing force being less than the first biasing force against the resilient disc of the valve. The adjustment of the biasing force on the valve also adjusts the damping force of the shock absorber.
摘要翻译：一种减震器组件，包括用于吸收机体和车辆的车轮之间的力的流体。减震器包括具有接合活塞的弹性盘以阻止流体通过活塞的孔的阀。双稳态螺线管设置在壳体中并与阀的弹性盘相互连接。双稳电磁铁的电枢可在用于向阀的弹性盘施加第一偏压力的第一稳定位置和第二稳定位置之间移动，第二稳定位置用于施加小于第一偏压力的第二偏压力，阀。阀上的偏置力的调节也调节减震器的阻尼力。

2. 发明申请

US20070285195A1 Direct flux control system for magnetic structures 审中-公开
标题翻译：磁结构直接磁通控制系统
公开(公告)号：US20070285195A1
公开(公告)日：2007-12-13
申请号：US11451953
申请日：2006-06-13
申请人： Thomas W. Nehl , Suresh Gopalakrishnan , Fang Deng
发明人： Thomas W. Nehl , Suresh Gopalakrishnan , Fang Deng
IPC分类号： H01F1/00
CPC分类号： H01F7/1844 , G01R33/14 , H01F7/1638 , H01F2007/1692
摘要： A method for controlling a magnetic structure including the steps of determining a flux associated with the magnetic structure and generating a control signal based, at least in part, upon the determined flux.
摘要翻译：一种用于控制磁性结构的方法，包括以下步骤：至少部分地基于所确定的磁通量来确定与所述磁性结构相关联的磁通并产生控制信号。

3. 发明授权

US5251729A Vehicle suspension damper with relative velocity sensor having controlled flux path 失效
标题翻译：具有相对速度传感器的车辆悬架阻尼器具有受控的通量
公开(公告)号：US5251729A
公开(公告)日：1993-10-12
申请号：US811428
申请日：1991-12-20
申请人： Thomas W. Nehl , Jeri A. Betts , Larry S. Mihalko
发明人： Thomas W. Nehl , Jeri A. Betts , Larry S. Mihalko
IPC分类号： B60G17/019 , B60G11/26
CPC分类号： B60G17/019 , B60G2204/112 , B60G2400/202 , B60G2600/24
摘要： A relative velocity sensor in a vehicle suspension damper comprises an annular, radially polarized magnet at the top of the shock cylinder adjacent a sensor winding on the inside of the dust tube. A closed magnetic circuit is defined from the magnet through an annular magnetic member inside the magnet to the piston rod and back through the dust tube across the sensor winding to the magnet. Flux below the magnet is similarly confined through the cylinder and does not affect the sensor winding. The air gaps at the winding and the piston rod do not change with axial movement; and the flux linkage variation with axial movement is thus linear across the entire coil. A voltage is generated across the coil which is a strong and accurate signal of relative movement between the sprung and unsprung masses of the vehicle.
摘要翻译：车辆悬架阻尼器中的相对速度传感器包括位于冲击缸顶部的环形径向极化磁体，其邻近于尘埃管内侧的传感器绕组。从磁体通过磁体内的环形磁性构件到活塞杆并且通过穿过传感器绕组的尘埃管返回到磁体来限定闭合磁路。磁体下面的磁通同样通过气缸限制，不影响传感器绕组。绕组和活塞杆上的气隙不随轴向移动而变化; 并且随着轴向运动的磁链变化在整个线圈上是线性的。在线圈之间产生电压，该电压是车辆的簧上和非簧载质量之间的相对运动的强而准确的信号。

4. 发明授权

US08327984B2 Magnetorheological (MR) piston assembly with primary and secondary channels to improve MR damper force 失效
标题翻译：磁流变（MR）活塞组件具有一次和二次通道，以改善MR阻尼力
公开(公告)号：US08327984B2
公开(公告)日：2012-12-11
申请号：US12609395
申请日：2009-10-30
申请人： Robert T. Foister , Thomas W. Nehl , William C. Kruckemeyer , Oliver Raynauld
发明人： Robert T. Foister , Thomas W. Nehl , William C. Kruckemeyer , Oliver Raynauld
IPC分类号： F16F9/53
CPC分类号： F16F9/535
摘要： A magnetorheolgical (MR) damper includes a piston assembly having a primary channel disposed along a longitudinal axis and contained in a cylinder. MR fluid is also contained in the cylinder. The piston assembly having a primary channel, or primary channel MR piston assembly, includes a piston body having a first end axially spaced from a second end and defining a hole therethrough. The primary channel is defined in an outer body surface of the piston body from the hole at the second end to a coil groove in the outer body surface about the axis. A secondary channel is defined in the outer body surface from the coil groove towards the first end to improve MR damper force performance at low primary channel MR piston assembly velocities.
摘要翻译：磁流体（MR）阻尼器包括活塞组件，该活塞组件具有沿着纵向轴线设置并容纳在气缸中的主通道。液体流体也包含在气缸中。具有主通道或主通道MR活塞组件的活塞组件包括活塞体，其具有与第二端轴向间隔开并且限定穿过其中的孔的第一端。主通道被限定在活塞体的外体表面中，从第二端的孔到围绕轴线的外体表面中的线圈槽。第二通道被限定在外部体表面中，从线圈槽朝向第一端，以改善低主通道MR活塞组件速度下的MR阻尼器力性能。

5. 发明授权

US06948312B1 High-performance piston core for a magnetorheological damper 有权
标题翻译：用于磁流变阻尼器的高性能活塞芯
公开(公告)号：US06948312B1
公开(公告)日：2005-09-27
申请号：US10811516
申请日：2004-03-29
申请人： Janusz P. Goldasz , Zbigniew W. Szklarz , Alexander A. Alexandridis , Thomas W. Nehl , Fang Deng , Olivier Valee
发明人： Janusz P. Goldasz , Zbigniew W. Szklarz , Alexander A. Alexandridis , Thomas W. Nehl , Fang Deng , Olivier Valee
IPC分类号： F16D37/02 , F16F9/32 , F16F9/53
CPC分类号： F16F9/3214 , F16F9/535
摘要： A high-performance piston core including a first piston cylinder and a second piston cylinder, with a piston center longitudinally disposed between and magnetically coupling the first piston cylinder and the second piston cylinder. The piston center is made of high-performance magnetic material, such as Cobalt steel (CoFe), Silicon steel (SiFe), Vanadium/Cobalt steel (Permendur), alloys thereof, or the like. The high-performance magnetic materials exhibit high magnetic permeability and reduce the magnetic reluctance of flux bottlenecks. In addition, high-performance magnetic materials typically saturate at a higher flux density than the conventional magnetic materials. The first piston cylinder and the second piston cylinder can be made of conventional magnetic material, such as low-carbon steel. The first piston cylinder can include a ring disposed about an end, where the end is longitudinally attached and magnetically coupled to the piston center.
摘要翻译：一种高性能活塞芯，包括第一活塞气缸和第二活塞气缸，活塞中心纵向设置在第一活塞气缸和第二活塞气缸之间，并且磁性联接。活塞中心由钴（CoFe），硅钢（SiFe），钒/钴钢（Permendur），合金等高性能磁性材料制成。高性能磁性材料具有高磁导率，降低了磁通量瓶颈的磁阻。此外，高性能磁性材料通常以比常规磁性材料更高的磁通密度饱和。第一活塞缸和第二活塞缸可由常规的磁性材料制成，例如低碳钢。第一活塞气缸可以包括围绕端部设置的环，其中端部纵向附接并且磁耦合到活塞中心。

6. 发明授权

US10060399B2 Method and apparatus for optimum drive signal control of an electromagnetically-activated actuator 有权
公开(公告)号：US10060399B2
公开(公告)日：2018-08-28
申请号：US15135785
申请日：2016-04-22
申请人： Chandra S. Namuduri , Suresh Gopalakrishnan , Avoki M. Omekanda , Thomas W. Nehl
发明人： Chandra S. Namuduri , Suresh Gopalakrishnan , Avoki M. Omekanda , Thomas W. Nehl
IPC分类号： F02M51/06 , F02M63/00 , H02K33/16 , F02D41/20
CPC分类号： F02M51/0614 , F02D41/20 , F02D2041/1409 , F02D2041/2034 , F02D2041/2037 , F02D2041/2051 , F02D2041/2055 , F02D2041/2072 , F02M63/0017 , H02K33/16
摘要： An electromagnetically-activated actuator includes an electrical coil, an armature moveable between rest and actuated positions, and a bi-directional driver. A method for controlling an actuator event includes applying a supply voltage at a first polarity across the coil for a first duration to drive a forward current through the coil effective to move the armature away from the rest position. The forward current has a forward current peak at the end of the first duration. After the first duration, the supply voltage is applied at a second polarity across the coil for a second duration to drive a reverse current through the coil. The second duration terminates when the reverse current attains a predetermined reverse current peak, wherein the predetermined reverse current peak is coincident with the armature returning to the rest position.

7. 发明申请

US20170306907A1 METHOD AND APPARATUS FOR OPTIMUM DRIVE SIGNAL CONTROL OF AN ELECTROMAGNETICALLY-ACTIVATED ACTUATOR 审中-公开
公开(公告)号：US20170306907A1
公开(公告)日：2017-10-26
申请号：US15135785
申请日：2016-04-22
申请人： CHANDRA S. NAMUDURI , Suresh Gopalakrishnan , Avoki M. Omekanda , Thomas W. Nehl
发明人： CHANDRA S. NAMUDURI , Suresh Gopalakrishnan , Avoki M. Omekanda , Thomas W. Nehl
IPC分类号： F02M51/06 , F02M63/00 , H02K33/16 , F02D41/20
CPC分类号： F02M51/0614 , F02D41/20 , F02D2041/1409 , F02D2041/2034 , F02D2041/2037 , F02D2041/2051 , F02D2041/2055 , F02D2041/2072 , F02M63/0017 , H02K33/16
摘要： An electromagnetically-activated actuator includes an electrical coil, an armature moveable between rest and actuated positions, and a bi-directional driver. A method for controlling an actuator event includes applying a supply voltage at a first polarity across the coil for a first duration to drive a forward current through the coil effective to move the armature away from the rest position. The forward current has a forward current peak at the end of the first duration. After the first duration, the supply voltage is applied at a second polarity across the coil for a second duration to drive a reverse current through the coil. The second duration terminates when the reverse current attains a predetermined reverse current peak, wherein the predetermined reverse current peak is coincident with the armature returning to the rest position.

8. 发明申请

US20110100775A1 MAGNETORHEOLOGICAL (MR) PISTON ASSEMBLY WITH PRIMARY AND SECONDARY CHANNELS TO IMPROVE MR DAMPER FORCE 失效
标题翻译：磁共振（MR）活塞组件与主要和次要通道，以改善MR阻尼力
公开(公告)号：US20110100775A1
公开(公告)日：2011-05-05
申请号：US12609395
申请日：2009-10-30
申请人： Robert T. Foister , Thomas W. Nehl , William C. Kruckemeyer , Oliver Raynauld
发明人： Robert T. Foister , Thomas W. Nehl , William C. Kruckemeyer , Oliver Raynauld
IPC分类号： F16F9/53
CPC分类号： F16F9/535
摘要： A magnetorheolgical (MR) damper includes a piston assembly having a primary channel disposed along a longitudinal axis and contained in a cylinder. MR fluid is also contained in the cylinder. The piston assembly having a primary channel, or primary channel MR piston assembly, includes a piston body having a first end axially spaced from a second end and defining a hole therethrough. The primary channel is defined in an outer body surface of the piston body from the hole at the second end to a coil groove in the outer body surface about the axis. A secondary channel is defined in the outer body surface from the coil groove towards the first end to improve MR damper force performance at low primary channel MR piston assembly velocities.
摘要翻译：磁流体（MR）阻尼器包括活塞组件，该活塞组件具有沿着纵向轴线设置并容纳在气缸中的主通道。液体流体也包含在气缸中。具有主通道或主通道MR活塞组件的活塞组件包括活塞体，其具有与第二端轴向间隔开并且限定穿过其中的孔的第一端。主通道被限定在活塞体的外体表面中，从第二端的孔到围绕轴线的外体表面中的线圈槽。第二通道被限定在外部体表面中，从线圈槽朝向第一端，以改善低主通道MR活塞组件速度下的MR阻尼器力性能。

9. 发明授权

US07543687B2 Piston damper assembly, and dust tube subassembly, having a position sensor 有权
标题翻译：活塞阻尼器组件和防尘管子组件，具有位置传感器
公开(公告)号：US07543687B2
公开(公告)日：2009-06-09
申请号：US11376836
申请日：2006-03-16
申请人： Malakondaiah Naidu , Thomas W. Nehl
发明人： Malakondaiah Naidu , Thomas W. Nehl
IPC分类号： F16D66/02
CPC分类号： F16F9/3292 , B60G2204/112 , F16F9/38 , F16F2230/08 , G01D5/00 , G01D5/2046
摘要： A piston damper assembly includes a piston damper and a relative position sensor. The piston damper includes a damper body and a piston rod. The piston rod is axially movable within the damper body. The relative position sensor includes an axially-extending magnetic core, an excitation coil, and a position-sensing coil. The axially-extending magnetic core is movable with the piston rod, is located outside the damper body, and has first and second protrusions extending toward the damper body. The excitation coil is wound around the first protrusion, and the position-sensing coil is wound around the second protrusion. A piston-damper dust tube subassembly includes an axially-extending piston-damper dust tube and a relative position sensor. The relative position sensor includes an axially-extending magnetic core, an excitation coil, and a position-sensing coil. The axially-extending magnetic core is attached to the dust tube and has first and second protrusions.
摘要翻译：活塞阻尼器组件包括活塞阻尼器和相对位置传感器。活塞阻尼器包括阻尼体和活塞杆。活塞杆可在阻尼体内轴向移动。相对位置传感器包括轴向延伸的磁芯，励磁线圈和位置感测线圈。轴向延伸的磁芯可以与活塞杆一起移动，位于阻尼器主体的外部，并且具有向阻尼器体延伸的第一和第二突起。励磁线圈缠绕在第一突起上，并且位置感测线圈缠绕在第二突起上。活塞式减震器灰尘管子组件包括一个轴向延伸的活塞阻尼器灰尘管和相对位置传感器。相对位置传感器包括轴向延伸的磁芯，励磁线圈和位置感测线圈。轴向延伸的磁芯被附接到灰尘管并具有第一和第二突起。

10. 发明授权

US07308975B2 Velocity sensing system for a damper 有权
标题翻译：用于阻尼器的速度传感系统
公开(公告)号：US07308975B2
公开(公告)日：2007-12-18
申请号：US11005111
申请日：2004-12-06
申请人： Thomas W. Nehl , Fang Deng
发明人： Thomas W. Nehl , Fang Deng
IPC分类号： F16F15/03
CPC分类号： B60G17/01933 , B60G2204/112 , B60G2400/202 , B60G2401/172 , F16F9/3292 , G01D5/2033 , G01P3/50 , G01P3/52
摘要： A velocity sensor including a damper assembly having a central axis, a magnet extending parallel to the central axis, the magnet having a magnetic axis radially oriented with the central axis, and a coil extending parallel to the central axis and radially oriented with the central axis, wherein movement of the damper assembly with respect to the magnet induces a voltage in the coil.
摘要翻译：一种速度传感器，包括具有中心轴的阻尼器组件，平行于中心轴线延伸的磁体，磁体具有径向定向的中心轴线的磁轴线和平行于中心轴线延伸的线圈，其中阻尼器组件相对于磁体的运动在线圈中引起电压。

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