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公开(公告)号：US07042189B2
公开(公告)日：2006-05-09
申请号：US10136043
申请日：2002-04-30
IPC分类号： H02P5/28
CPC分类号： H02P6/08
摘要： In one method for controlling an electric motor, current turn-on and turn-off rotor-position angles for each motor phase are chosen to substantially maximize the absolute value of average motor torque when the motor is operating in two different quadrants of motor torque and motor speed. The first quadrant has positive motor torque and positive motor speed. The second quadrant has negative torque and positive speed. The third quadrant has negative torque and negative speed. The fourth quadrant has positive torque and negative speed. In another method, the motor is operated in at least one of the first and third quadrants and in at least one of the second and fourth quadrants, wherein the absolute value of motor speed is limited when the motor is operating in the first or third quadrants but not in the second or fourth quadrants. In one example, the motor operates a vehicle brake caliper.
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2.发明授权Sensor assembly combining signals with enhanced asymmetry for detecting direction of rotation of an object 失效传感器组合组合具有增强的不对称性的信号以检测物体的旋转方向公开(公告)号：US07009384B2
公开(公告)日：2006-03-07
申请号：US10453041
申请日：2003-06-03
摘要： A target wheel sensor assembly includes a target wheel, a magnet, and two or more sensing elements placed therebetween. The magnet and the sensing elements are configured so that as the target wheel rotates each of the sensing elements outputs a respective asymmetric signal relative to the direction of rotation of the target wheel or an object mechanically connected to the wheel. Each of these asymmetric signals is differentially combined with one another to determine the direction of motion of the target wheel, and, if optionally desired, the position of the target wheel.
摘要翻译： 目标轮传感器组件包括目标轮，磁体和放置在它们之间的两个或更多个传感元件。 磁体和感测元件构造成使得当目标轮旋转每个感测元件时，相对于目标轮或机械地连接到车轮的物体的旋转方向输出相应的不对称信号。 这些不对称信号中的每一个彼此差分地组合以确定目标车轮的运动方向，并且如果可选地，确定目标车轮的位置。
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公开(公告)号：US5570016A
公开(公告)日：1996-10-29
申请号：US252293
申请日：1994-06-01
申请人： Thaddeus Schroeder , Bruno P. B. Lequesne , Raymond O. Butler, Jr. , Anthony L. Marks , Thomas A. Perry , John R. Bradley
发明人： Thaddeus Schroeder , Bruno P. B. Lequesne , Raymond O. Butler, Jr. , Anthony L. Marks , Thomas A. Perry , John R. Bradley
CPC分类号： G01D5/2497 , G01B7/30 , G01D5/147
摘要： A method and apparatus for detecting an engine crankshaft angular position which provides for fast starting of the engine. A target wheel and sensor combination generate an analog signal which is convened into a 24 bit digital output which repeats every 360.degree. rotation of the crankshaft. Each bit represents a particular angular position of the crankshaft. Any 6 sequential bits in the repeating 24 bit digital output sequence form a unique pattern. By monitoring the first six bits generated (90.degree. of crankshaft rotation) during startup, a crankshaft angular position can be determined, thereby enabling fast starting of the engine.
摘要翻译： 一种用于检测发动机曲轴角位置的方法和装置，其提供发动机的快速启动。 目标轮和传感器组合产生模拟信号，该模拟信号被转换成24位数字输出，其重复曲轴每360度的旋转。 每个位表示曲轴的特定角度位置。 重复的24位数字输出序列中的任何6个连续位形成一个独特的模式。 通过监视启动时产生的前六位（曲轴旋转90°），可以确定曲轴角度位置，从而能够快速启动发动机。
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公开(公告)号：US5492572A
公开(公告)日：1996-02-20
申请号：US345055
申请日：1994-11-25
IPC分类号： C21D1/04 , C21D1/09 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/12 , H01F1/03 , H01F1/057 , H02K1/27 , H02K15/03 , H01F1/04
CPC分类号： H02K1/2733 , C21D1/04 , C21D1/34 , G01D5/249 , G01P3/487 , G06K1/125 , H01F1/0306 , H01F1/057 , H02K15/03 , C21D1/09 , C21D2221/00 , Y10T29/4902
摘要： A magnetized or unmagnetized body of a permanent magnet material is heated in a pattern by a laser beam to a temperature sufficient to lower the coercivity of selected heated regions of the pattern and exposed to a magnetic field to magnetize or to remagnetize the selected heated regions. A pattern guide is used in the process to densify the pattern. In the process, energy is directed through the pattern guide and onto the selected regions, while the pattern guide prevents or minimizes heating of unselected portions of the body. Magnets so produced can have very high pole density, digital encoding and analog patterns having gradually varying local field strength.
摘要翻译： 永磁材料的磁化或非磁化体通过激光束以图案加热至足以降低图案的选定加热区域的矫顽力并暴露于磁场以使磁化或使所选择的加热区域再磁化的温度。 在该过程中使用图案指南来致密化图案。 在该过程中，能量通过图案引导件引导到所选择的区域上，同时图案引导件防止或最小化身体的未选择部分的加热。 如此制造的磁体可以具有非常高的极点密度，数字编码和具有逐渐变化的局部场强的模拟图案。
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公开(公告)号：US4779582A
公开(公告)日：1988-10-25
申请号：US84400
申请日：1987-08-12
申请人： Bruno P. B. Lequesne
发明人： Bruno P. B. Lequesne
CPC分类号： H01F7/1646 , F01L9/04 , H01F7/1615 , H01F2007/1669
摘要： A valve member is latched into open or closed positions by permanent magnetic poles against the force of compressed springs. A coil associated with each position, when activated with a current, cancels the magnetic field of the permanent magnetic pole holding the valve member and allows the compressed spring to move the member quickly through a central neutral position toward the other position, whereupon it is attracted by the other magnetic pole to compress the other spring and latch into the other position. Variations on the basic invention include different structures for single valves, the inclusion of two valves within a single pair of coils with different opening current levels, and the use of the coil opposite the activating coil as a valve member movement sensing device.
摘要翻译： 阀构件通过永久磁极锁定在打开或关闭位置，抵抗压缩弹簧的力。 与每个位置相关联的线圈当被电流激活时，抵消了保持阀构件的永久磁极的磁场，并允许压缩弹簧将构件快速移动通过中心中立位置朝向另一位置，于是被吸引 由另一个磁极压缩另一个弹簧并锁定到另一个位置。 基本发明的变化包括单个阀的不同结构，在具有不同开启电流水平的单对线圈内包含两个阀，以及使用与激活线圈相对的线圈作为阀构件运动感测装置。
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公开(公告)号：US07104137B2
公开(公告)日：2006-09-12
申请号：US10827803
申请日：2004-04-20
IPC分类号： G01L9/16
CPC分类号： G01L9/16
摘要： A magnetostrictive fluid-pressure sensor includes annular inner and outer cylinders, a first connector, annular second and third connectors, and first and second coils. The inner cylinder surrounds a fluid-receiving bore. At least one of the cylinders is a magnetostrictive cylinder. The first connector connects the first ends of the cylinders and has a first portion extending radially inward of the inner cylinder. The second connector connects the second ends of the cylinders and defines a fluid inlet. The third connector connects the cylinders and is positioned longitudinally between the first and second connectors. The first coil is positioned radially between the inner and outer cylinders and longitudinally between the first and third connectors. The second coil is positioned radially between the inner and outer cylinders and longitudinally between the second and third connectors.
摘要翻译： 磁致伸缩流体压力传感器包括环形内圆筒和外圆筒，第一连接器，环形第二和第三连接器以及第一和第二线圈。 内筒围绕流体接收孔。 至少一个气缸是磁致伸缩缸。 第一连接器连接气缸的第一端并且具有从内筒径向向内延伸的第一部分。 第二连接器连接气缸的第二端并限定流体入口。 第三连接器连接气缸并纵向定位在第一和第二连接器之间。 第一线圈径向地定位在内筒和外筒之间，并且纵向地位于第一和第三连接器之间。 第二线圈径向地位于内筒和外筒之间，纵向位于第二和第三连接器之间。
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公开(公告)号：US5598814A
公开(公告)日：1997-02-04
申请号：US357794
申请日：1994-12-15
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： A motor control includes position transducers for generating crankshaft position and motor position pulse trains. The pulse trains are compared to detect any phase difference between engine and motor. Tables are generated to define the desired phase difference needed for particular valve characteristics. The phase difference represents the instantaneous deviation from the basic profile. One of the tables is selected according to the engine conditions and the motor is driven to achieve the desired phase differences.
摘要翻译： 马达控制器包括用于产生曲轴位置和马达位置脉冲列的位置传感器。 将脉冲串进行比较，以检测发动机和电机之间的任何相位差。 生成表以定义特定阀特性所需的期望相位差。 相位差表示与基本曲线的瞬时偏差。 根据发动机条件选择其中一个表，并且驱动电动机以实现期望的相位差。
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公开(公告)号：US5494007A
公开(公告)日：1996-02-27
申请号：US358212
申请日：1994-12-15
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： A cam mechanism is employed to convert motor rotation to reciprocating valve motion. Motor speed is reduced at the valve opening and closing times to reduce stress on the cam mechanism.
摘要翻译： 采用凸轮机构将电机转动转换成往复阀运动。 在阀门打开和关闭时间，电机速度减小，以减少凸轮机构的应力。
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公开(公告)号：US5327856A
公开(公告)日：1994-07-12
申请号：US994829
申请日：1992-12-22
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： Each valve of an internal combustion engine is driven by a separate rotary electric motor. A cam mechanism for the valves comprises a cylindrical cam in line with the motor axis and the valve stem, the mechanism having inner and outer cylinders, one cylinder rotating with the motor and carrying a cam and the other containing a cam follower and reciprocating with the valve.
摘要翻译： 内燃机的每个阀由单独的旋转电动机驱动。 用于阀的凸轮机构包括与电动机轴线和阀杆一致的圆柱形凸轮，该机构具有内部和外部气缸，一个气缸与电动机一起旋转并且承载凸轮，另一个气缸容纳凸轮从动件并与 阀。
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公开(公告)号：US5196821A
公开(公告)日：1993-03-23
申请号：US848512
申请日：1992-03-09
申请人： Dale L. Partin , Jackson G. Gay , Brian K. Fuller , Bruno P. B. Lequesne , Frederick E. Pinkerton
发明人： Dale L. Partin , Jackson G. Gay , Brian K. Fuller , Bruno P. B. Lequesne , Frederick E. Pinkerton
IPC分类号： H01L43/08
CPC分类号： H01L43/08
摘要： A magnetic field sensor, such as a magnetoresistor, includes a strip of a layer of a high electron mobility semiconductor whose electrical characteristics vary when a magnetic field is applied thereto on the surface of a body (substrate) of an insulating layer. Conductive contacts are on the strip at the ends thereof and conductive shorting bars are on and spaced along the strip to divide the strip into active regions. The body is mounted on a permanent magnet assembly which includes a magnet and a layer of a ferromagnetic material with the ferromagnetic material extending over the strip. The ferromagnetic layer is in close proximity to only the strip and, more preferably, to only the active regions of the strip so as to confine the magnetic field to the strip.
摘要翻译： 诸如磁电阻器的磁场传感器包括当在绝缘层的主体（基板）的表面上施加磁场时电特性变化的高电子迁移率半导体层的条带。 导电触点在其端部处在条带上，并且导电短路棒沿着带条间隔开并且将带分割成活动区域。 主体安装在永磁体组件上，永磁体组件包括磁体和铁磁材料层，铁磁材料层延伸穿过带材。 铁磁层仅靠近条带，更优选地仅与带的有源区域接合，以便将磁场限制在条带上。
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