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1. 发明授权

US5434784A Vehicle steering wheel position sensing apparatus 失效
标题翻译：车辆方向盘位置检测装置
公开(公告)号：US5434784A
公开(公告)日：1995-07-18
申请号：US296553
申请日：1994-08-26
申请人： John R. Bradley , Thomas A. Perry , Richard E. Teets , Martin S. Meyer , Jeffrey A. Sell , Thomas H. Van Steenkiste , Frank J. Bohac, Jr. , Jerry S. Roach , Manfred W. Reissmueller , Everett K. Shelton , Dozier: James R. , Hiro Yamasaki
发明人： John R. Bradley , Thomas A. Perry , Richard E. Teets , Martin S. Meyer , Jeffrey A. Sell , Thomas H. Van Steenkiste , Frank J. Bohac, Jr. , Jerry S. Roach , Manfred W. Reissmueller , Everett K. Shelton , Dozier: James R. , Hiro Yamasaki
IPC分类号： B62D15/02 , B62D5/00
CPC分类号： B62D15/02
摘要： This invention relates to an apparatus for sensing a vehicle steering wheel position. A permanent magnet target wheel having a global axial magnetic field normal to a first surface is attached to a steering shaft which is rotated by the steering wheel. Multiple regions equally spaced along a common radius on the first surface are magnetically altered and sensed by magnetically responsive sensors positioned adjacent the first radius. A single region positioned within a finite radius along a second radius on the first surface is magnetically altered and sensed by a magnetically responsive sensor positioned adjacent the second radius. The magnetic sensors are responsive to passage of the multiple regions and single region as the target wheel is rotated. Detection of each of the multiple regions corresponds to rotation of the target wheel by an incremental number of degrees. Detection of the single region corresponds to a target wheel position within a predetermined angular range, referred to as the center position. A turn counter is utilized to determine which of the center positions corresponds to the steering wheel neutral position.
摘要翻译：本发明涉及一种感测车辆方向盘位置的装置。具有垂直于第一表面的全局轴向磁场的永磁体目标轮被附接到由方向盘旋转的转向轴。沿着第一表面上的共同半径等距间隔的多个区域被磁性地改变并且被邻近第一半径定位的磁响应传感器感测。沿着第一表面上的第二半径定位在有限半径内的单个区域被磁性地改变并且被邻近第二半径定位的磁响应传感器感测。当目标轮旋转时，磁传感器响应于多个区域和单个区域的通过。多个区域中的每一个的检测对应于目标车轮的旋转增加的数量。单个区域的检测对应于称为中心位置的预定角度范围内的目标车轮位置。使用转弯计数器来确定哪个中心位置对应于方向盘中立位置。

2. 发明授权

US4524627A Electromagnetic flow meter 失效
标题翻译：电磁流量计
公开(公告)号：US4524627A
公开(公告)日：1985-06-25
申请号：US509799
申请日：1983-06-30
申请人： Hiro Yamasaki , Tung Jin Chin , Chuji Akiyama
发明人： Hiro Yamasaki , Tung Jin Chin , Chuji Akiyama
IPC分类号： G01F1/58 , G01F1/60 , G01P5/08
CPC分类号： G01P5/083 , G01F1/58 , G01F1/60
摘要： An electromagnetic flow meter includes a fluid-carrying conduit. A signal detecting element detects an electromotive force induced in the fluid in the conduit to produce a first detecting signal. A conduit voltage detecting element detects a voltage of the conduit to produce a second detecting signal. An electrical energy applying device is responsive to the first and second detecting signals for applying a selected amount of voltage to the conduit so that the voltage of the first detecting signal and the detected voltage of the conduit become equal to each other, whereby a profile of the voltage of the conduit is substantially similar to a profile of the electromotive force at least at a position of the signal detecting element.
摘要翻译：电磁流量计包括流体输送导管。信号检测元件检测在导管中的流体中感应的电动势，以产生第一检测信号。导管电压检测元件检测导管的电压以产生第二检测信号。电能施加装置响应于第一和第二检测信号，以向导管施加选定量的电压，使得第一检测信号的电压和导管的检测电压彼此相等，由此，管道的电压至少在信号检测元件的位置处基本上类似于电动势的轮廓。

3. 发明授权

US5754042A Magnetoresistive encoder for tracking the angular position of a rotating ferromagnetic target wheel 失效
标题翻译：用于跟踪旋转铁磁目标轮的角位置的磁阻编码器
公开(公告)号：US5754042A
公开(公告)日：1998-05-19
申请号：US262097
申请日：1994-06-20
申请人： Thaddeus Schroeder , Bruno Patrice Bernard Lequesne , Hiro Yamasaki
发明人： Thaddeus Schroeder , Bruno Patrice Bernard Lequesne , Hiro Yamasaki
IPC分类号： G01B7/30 , G01D5/14 , G01D5/16 , G01D5/249 , H01L43/08
CPC分类号： G01D5/147 , G01B7/30 , G01D5/2497
摘要： An apparatus for detecting precise angular positions of a rotating object. Two magnetoresistors (MRs) are positioned adjacent a target wheel attached to the rotating object, the target wheel having at least one element of finite length. Each MR is responsive to the passage of at least one of the elements as the target wheel is rotated, generating an analog signal with signal transitions between two voltage levels at the passage of the element's leading and trailing edges. The MRs are positioned relative to the elements such that their signals are phase shifted with respect to one another, resulting in time overlapping signals which intersect at a precise angular positions of the target wheel.
摘要翻译：一种用于检测旋转物体的精确角位置的装置。两个磁阻电阻器（MR）被定位成与附接到旋转物体的目标轮相邻，目标轮具有至少一个有限长度的元件。当目标轮旋转时，每个MR响应于至少一个元件的通过，在元件的前缘和后缘通过时产生具有两个电压电平之间的信号转换的模拟信号。 MR相对于元件定位，使得它们的信号相对于彼此相移，导致与目标轮的精确角位置相交的时间重叠信号。

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