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1. 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。

2. 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。

3. 发明授权

US06639399B2 Target wheel sensor assembly for determining position and direction of motion of a rotating target wheel 失效
标题翻译：用于确定旋转目标轮的运动的位置和方向的目标轮传感器组件
公开(公告)号：US06639399B2
公开(公告)日：2003-10-28
申请号：US09777764
申请日：2001-02-06
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： G01D5/147 , G01P3/488 , G01P13/04
摘要： A target wheel sensor assembly includes a target wheel, a magnet, and a sensing element placed therebetween. The magnet and the sensing element are configured so that as the target wheel rotates the sensing element outputs an asymmetric signal. This asymmetric signal is used to determine the position of the target wheel as it rotates and the direction of motion of the target wheel.
摘要翻译：目标轮传感器组件包括目标轮，磁体和放置在其间的感测元件。磁体和感测元件构造成使得当目标轮旋转时，感测元件输出不对称信号。该不对称信号用于确定目标车轮旋转时的位置和目标车轮的运动方向。

4. 发明授权

US06498451B1 Torque ripple free electric power steering 有权
标题翻译：扭矩波动免费电动助力转向
公开(公告)号：US06498451B1
公开(公告)日：2002-12-24
申请号：US09656116
申请日：2000-09-06
申请人： Nady Boules , Rassem Ragheb Henry , Chandra Sekhar Namuduri , Thomas Wolfgang Nehl , Bruno Patrice Bernard , Shaotang Chen
发明人： Nady Boules , Rassem Ragheb Henry , Chandra Sekhar Namuduri , Thomas Wolfgang Nehl , Bruno Patrice Bernard , Shaotang Chen
IPC分类号： G05B116
CPC分类号： B62D5/0403 , H02K7/116 , H02K29/03 , H02K29/08 , H02P6/10 , H02P2209/07
摘要： Disclosed is an electric motor system with reduced torque ripple comprising a sinusoidally magnetized permanent magnet, a sinusoidal inverter, a higher resolution position sensor, a composite iron stator yoke, a composite reinforced plastic rotor core and shaft; and a high gear ratio gear reduction box. The novel combination of magnet, inverter, sensor, plastic rotor core and shaft and high gear ratio gear box substantially reduces the torque ripple on the shaft of said motor system.
摘要翻译：公开了一种具有减小的转矩波动的电动机系统，包括正弦磁化永磁体，正弦逆变器，更高分辨率位置传感器，复合铁定子磁轭，复合增强塑料转子芯和轴; 和高齿轮减速箱。磁铁，变频器，传感器，塑料转子铁芯，轴和高速齿轮箱的新颖组合大大减少了所述电机系统的轴上的扭矩波动。

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