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1. 发明授权

US06992480B2 Combined incremental and linear magnetic sensor 失效
标题翻译：组合增量和线性磁传感器
公开(公告)号：US06992480B2
公开(公告)日：2006-01-31
申请号：US10682474
申请日：2003-10-09
申请人： Thaddeus Schroeder , Bruno P. B. Lequesne , Avoki M. Omekanda , Thomas Wolfgang Nehl , Rassem Ragheb Henry
发明人： Thaddeus Schroeder , Bruno P. B. Lequesne , Avoki M. Omekanda , Thomas Wolfgang Nehl , Rassem Ragheb Henry
IPC分类号： G01B7/14
CPC分类号： G01D5/24404
摘要： A magnetic sensor provides an output voltage range having first and second linear slopes. Proper selection of magnetic sensor dimensions enables changes in magnetic flux density upon the passage of at least one tooth and one slot of a target wheel past the magnetic sensor to be represented as a linear magnetic sensor output comprised of at least one linear range whereby linear interpolation of position is possible with appropriate signal processing algorithms.
摘要翻译：磁传感器提供具有第一和第二线性斜率的输出电压范围。正确选择磁传感器尺寸使得能够在目标轮的至少一个齿和一个槽通过磁性传感器通过之后磁通密度的变化被表示为包括至少一个线性范围的线性磁传感器输出，从而线性插值的位置是可能的与适当的信号处理算法。

2. 发明授权

US06992479B2 Magnetic sensor array configuration for measuring a position and method of operating same 失效
标题翻译：用于测量位置的磁传感器阵列配置及其操作方法
公开(公告)号：US06992479B2
公开(公告)日：2006-01-31
申请号：US10356457
申请日：2003-01-31
申请人： Bruno P. B. Lequesne , Avoki M. Omekanda , Thaddeus Schroeder
发明人： Bruno P. B. Lequesne , Avoki M. Omekanda , Thaddeus Schroeder
IPC分类号： G01B7/14
CPC分类号： G01D5/145
摘要： A magnetic position sensor for measuring a position of a ferromagnetic target over a range. The sensor comprises a magnet at least as long as the range and a sensor array mounted upon a surface of the magnet. The array is at least as long as the range and includes a plurality of sensing elements mounted a fixed distance from the surface of the magnet. The magnet length and the fixed distance have values such that a set of relatively constant values, preferably values of magnetic flux density, is measurable in the sensor array in the absence of the ferromagnetic target. A method of making a position sensor is also disclosed, as is a method of measuring the position of a ferromagnetic target over a range.
摘要翻译：一种磁性位置传感器，用于在一个范围内测量铁磁性目标的位置。传感器包括至少与该范围一样长的磁体和安装在磁体表面上的传感器阵列。该阵列至少与该范围一样长，并且包括从磁体表面安装固定距离的多个感测元件。磁体长度和固定距离具有这样的值，使得在不存在铁磁性目标的情况下，可以在传感器阵列中测量一组相对恒定的值，优选磁通密度值。还公开了一种制造位置传感器的方法，以及在一个范围上测量铁磁性靶的位置的方法。

3. 发明授权

US07009384B2 Sensor assembly combining signals with enhanced asymmetry for detecting direction of rotation of an object 失效
标题翻译：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
申请人： Joseph Pierre Heremans , Bruno P. B. Lequesne , Thaddeus Schroeder , Avoki M. Omekanda
发明人： Joseph Pierre Heremans , Bruno P. B. Lequesne , Thaddeus Schroeder , Avoki M. Omekanda
IPC分类号： G01B7/30 , G01P13/00
CPC分类号： G01D5/147 , G01P3/488 , G01P13/04
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。

4. 发明授权

US06894486B2 Magnetic encoder with double Frequency output 失效
标题翻译：带双频输出的磁性编码器
公开(公告)号：US06894486B2
公开(公告)日：2005-05-17
申请号：US10675694
申请日：2003-09-30
申请人： Avoki M. Omekanda , Bruno P. B. Lequesne , Thaddeus Schroeder
发明人： Avoki M. Omekanda , Bruno P. B. Lequesne , Thaddeus Schroeder
IPC分类号： G01B7/30 , G01D5/14 , G01D5/16 , G01P3/488
CPC分类号： G01P3/488 , G01D5/147
摘要： A magnetic sensor has magnetically sensitive element located at a side surface, instead of the bottom surface, of a bias magnet, the magnet being located adjacent a magnetic target wheel, wherein the bias magnet is magnetized parallel to the direction of motion of the teeth/slots of the target wheel. The output may be of a single or double frequency. Sampling of output slope can provide information regarding direction of movement of the target wheel. In a second embodiment the bias magnet is magnetized perpendicular to the movement.
摘要翻译：磁传感器具有位于偏置磁体的侧表面而不是底表面的磁敏元件，磁体位于磁性目标轮附近，其中偏置磁体被平行于齿/ 目标轮的槽。输出可以是单频或双频。输出斜率的采样可以提供目标车轮的运动方向信息。在第二实施例中，偏置磁体垂直于该运动被磁化。

5. 发明授权

US06873151B2 Sensor assembly for sensing angular position 失效
标题翻译：用于感测角位置的传感器组件
公开(公告)号：US06873151B2
公开(公告)日：2005-03-29
申请号：US10615561
申请日：2003-07-08
申请人： Bruno P. B. Lequesne , Avoki M. Omekanda , Thaddeus Schroeder
发明人： Bruno P. B. Lequesne , Avoki M. Omekanda , Thaddeus Schroeder
IPC分类号： G01B7/30 , G01D5/14 , G01D5/16
CPC分类号： G01D5/145
摘要： A sensor assembly for sensing angular position of an object is provided. The assembly may comprise at least one magneto-sensing magnet having a second axis of rotation. The assembly may further comprise a magnet having a second axis of rotation. At least one of the magnet and the magneto-sensing element are rotatable relative to the other. The respective axes of rotation of the magneto-sensing element and the magnet are non-coincident with respect to one another. The magnet is magnetized along one of the following directions: an axial direction and a radial direction.
摘要翻译：提供了一种用于感测物体的角度位置的传感器组件。组件可以包括具有第二旋转轴线的至少一个磁感应磁体。组件还可以包括具有第二旋转轴线的磁体。磁体和磁感应元件中的至少一个可相对于另一个旋转。磁感测元件和磁体的各个旋转轴线彼此不重合。磁体沿着以下方向之一被磁化：轴向和径向。

6. 发明授权

US07095206B2 Switched reluctance motor control with partially disabled operation capability 有权
标题翻译：开关磁阻电机控制具有部分禁用的运行能力
公开(公告)号：US07095206B2
公开(公告)日：2006-08-22
申请号：US10854026
申请日：2004-05-26
申请人： Bruno P. B. Lequesne , Suresh Gopalakrishnan , Avoki M. Omekanda , Thomas Wolfgang Nehl
发明人： Bruno P. B. Lequesne , Suresh Gopalakrishnan , Avoki M. Omekanda , Thomas Wolfgang Nehl
IPC分类号： H02P23/00 , H02P25/00 , H02H3/00
CPC分类号： H02H7/0833 , G01R31/343 , H02P25/092 , H02P29/032
摘要： Certain circuit faults in a phase of a multi-pole, switched reluctance, rotary electrical machine are detected; and the machine is selectively operated with a detected circuit fault when the nature of the fault permits continued operation of the phase and the operation of the phase is desirable. The fault may be one of certain short or open circuits in which at least one of the two current controlling electronic switches is operable to control phase current within predetermined limits. In the continued operation when a fault is detected, (1) the phase current is switched off earlier than it would be in the absence of the fault and/or (2) the maximum phase current is reduced compared with that permitted in the absence of the fault; and either or both of these modifications may be a function of motor speed. If the circuit fault adversely affects current control by an electronic switch normally controlling current level, another electronic switch is substituted for current control.
摘要翻译：检测到多极，开关磁阻，旋转电机的相位中的某些电路故障; 并且当故障的性质允许相的继续操作并且期望的操作时，机器被选择性地操作具有检测到的电路故障。故障可以是某些短路或开路中的一个，其中两个电流控制电子开关中的至少一个可操作以在预定限度内控制相电流。在检测到故障时的继续操作中，（1）相位电流比在没有故障时提前关闭和/或（2）与没有故障时允许的相电流相比，最大相电流减小错误; 并且这些修改中的一个或两个可以是电机速度的函数。如果电路故障不利地影响通常控制电流电平的电子开关的电流控制，则另一电子开关代替电流控制。

7. 发明授权

US07042189B2 Controlling an electric motor 有权
公开(公告)号：US07042189B2
公开(公告)日：2006-05-09
申请号：US10136043
申请日：2002-04-30
申请人： Syed A. Hossain , Iqbal Husain , Bruno P. B. Lequesne , Avoki M. Omekanda , Harald Klode
发明人： Syed A. Hossain , Iqbal Husain , Bruno P. B. Lequesne , Avoki M. Omekanda , Harald Klode
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.

8. 发明授权

US06489761B1 Magnetic arrangement for an analog angle encoder 失效
标题翻译：用于模拟角度编码器的磁排列
公开(公告)号：US06489761B1
公开(公告)日：2002-12-03
申请号：US09678209
申请日：2000-09-05
申请人： Thaddeus Schroeder , Bruno Patrice Bernard , Avoki M. Omekanda , Thomas Wolfgang Nehl
发明人： Thaddeus Schroeder , Bruno Patrice Bernard , Avoki M. Omekanda , Thomas Wolfgang Nehl
IPC分类号： G01B730
CPC分类号： G01D5/145
摘要： An analog angle encoder includes a non-magnetic stator which is cup-shaped, having a central post carrying at least one magnetosensitive device, and further including a rotor in the form of a ring captured by the stator, the rotor carrying at least one permanent magnet, wherein the rotor is rotatable relative to the stator. As the rotor rotates relative to the stator, the angle of the incident magnetic field changes relative to the magnetosensitive device, thereby causing the output from the device to vary sinusoidally with angular position. It is preferred to use magnetic configurations other than simple six sided magnets in order to achieve a more uniform magnetic field at the magnetosensitive device, as for example by utilizing cylindrical magnets, arcuate (concave faced) magnets, flat ferromagnetic layer pole pieces, arcuate (concave faced) ferromagnetic layer pole pieces, and ferromagnetic return paths.
摘要翻译：模拟角度编码器包括杯形的非磁性定子，其具有承载至少一个磁感应装置的中心柱，并且还包括由定子捕获的环形形式的转子，转子承载至少一个永磁体磁体，其中转子可相对于定子旋转。当转子相对于定子旋转时，入射磁场的角度相对于磁感应装置改变，从而使装置的输出以角度位置正弦变化。优选使用除了简单的六面磁体之外的磁性构造，以便在磁感应装置处获得更均匀的磁场，例如通过利用圆柱形磁体，弓形（凹面）磁体，扁平铁磁层极片，弓形（凹面）铁磁层极片和铁磁返回路径。

9. 发明授权

US06614223B2 Analog angle encoder having a single piece magnet assembly surrounding an air gap 失效
标题翻译：模拟角度编码器具有围绕气隙的单片磁体组件
公开(公告)号：US06614223B2
公开(公告)日：2003-09-02
申请号：US09929149
申请日：2001-08-14
申请人： Thaddeus Schroeder , Bruno Patrice Bernard Lequesne , Avoki M. Omekanda , Steven Douglas Thomson
发明人： Thaddeus Schroeder , Bruno Patrice Bernard Lequesne , Avoki M. Omekanda , Steven Douglas Thomson
IPC分类号： G01B230
CPC分类号： G01D5/145
摘要： An analog angle encoder having a simply constructed magnet assembly, wherein rotation of a magnetic field relative to a magnetosensitive device provides a varying output of the magnetosensitive device that varies sinusoidally with the angle of relative rotation. The simply constructed magnet assembly is of a closed-path geometry composed of a single piece of magnetic material wherein only a first portion thereof is magnetized for providing the aforesaid magnetic field for the sensor. The remaining portion of the magnet material (the second portion) remains unmagnetized and does not substantially influence the magnetic field produced by the first portion any more than, for example, air would cause.
摘要翻译：具有简单构造的磁体组件的模拟角度编码器，其中磁场相对于磁敏装置的旋转提供了与相对旋转角正弦变化的磁敏装置的变化的输出。简单构造的磁体组件是由单个磁性材料组成的闭路几何形状，其中只有其第一部分被磁化以提供用于传感器的上述磁场。磁体材料的剩余部分（第二部分）保持不磁化，并且基本上不影响第一部分产生的比例如空气将产生的磁场。

10. 发明授权

US06650110B2 Target wheel sensor assembly for producing an asymmetric signal and for determining the direction of motion of the target wheel based on the signal shape 失效
标题翻译：目标轮传感器组件，用于产生不对称信号并且用于基于信号形状来确定目标车轮的运动方向
公开(公告)号：US06650110B2
公开(公告)日：2003-11-18
申请号：US09873871
申请日：2001-06-04
申请人： Thaddeus Schroeder , Bruno Patrice Bernard , Avoki M. Omekanda
发明人： Thaddeus Schroeder , Bruno Patrice Bernard , Avoki M. Omekanda
IPC分类号： G01B730
CPC分类号： G01B7/315
摘要： A target wheel sensor assembly includes a sensor that is placed near a target wheel. The sensor includes a magnet to create a flux and a sensing element to sense changes in the flux as the target wheel rotates. The target wheel is alternatingly formed with multiple teeth and multiple slots. Each tooth includes a flat portion that is parallel to the bottom of the sensor and a chamfered portion contiguous to the flat portion. The chamfered portion forms an angle, &agr;, with the bottom of the sensor. As the target wheel rotates, the shape of the teeth in conjunction with the slots cause the sensor to output an asymmetric signal. The shape of the signal is used to determine the direction of motion of the target wheel.
摘要翻译：目标轮传感器组件包括放置在目标轮附近的传感器。传感器包括用于产生磁通的磁体和感测元件，以在目标轮旋转时感测磁通量的变化。目标轮交替地形成有多个齿和多个槽。每个齿包括平行于传感器底部的平坦部分和与平坦部分邻接的倒角部分。倒角部分与传感器的底部形成一个角度α。当目标轮旋转时，齿的形状与狭槽结合使得传感器输出不对称信号。信号的形状用于确定目标车轮的运动方向。

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