公开(公告)号：US20040196026A1

公开(公告)日：2004-10-07

申请号：US10828994

申请日：2004-04-21

发明人： Stephan Bolz

IPC分类号： G01P003/48

CPC分类号： G01P3/489

摘要： An analytical circuit for an inductive electromagnetic sensor with external excitation (1) generates an output signal which is transformed to give an output signal (out), by means of transformation to a reference voltage (Vref) in an inverting low-pass filter (12), which has no hysteresis delay and is free from multiple triggering. By comparison of the reference voltage with three voltage thresholds in a diagnostic circuit (6), line interruptions and short-circuits are recognised by battery voltage or reference voltage potentials.

摘要翻译： 用于具有外部激励（1）的感应电磁传感器的分析电路通过转换成反相低通滤波器（12）中的参考电压（Vref）产生输出信号，该输出信号被变换以产生输出信号（out） ），其没有滞后延迟并且没有多次触发。 通过比较诊断电路（6）中的参考电压与三个电压阈值，可以通过电池电压或参考电压电位来识别线路中断和短路。

公开(公告)号：US20040150394A1

公开(公告)日：2004-08-05

申请号：US10760861

申请日：2004-01-20

申请人： RFT S.P.A.

发明人： Aurelio Nervo ,  Alberto Visconti

IPC分类号： G01B007/30 ,  G01P003/48

CPC分类号： G01D5/14 ,  G01D5/142 ,  G01P3/487

摘要： A control device is disclosed for controlling the amount of a physical quantity in accordance with a prescribed periodic function (f) for driving a controlled device (D). The control device comprises a pulse wheel device including: a magnetized member (10) fixable to a rotatable member (R) and comprising zones magnetized with opposite polarities (N, S) in predetermined angular zones, and an associated transducer (T) for generating an analog signal that varies as the angular position of the rotatable magnetized member (10) varies. The zones magnetized with opposite polarities (N, S) are arranged in such manner that at every revolution of the rotatable member a magnetic flux linked with the transducer (T) varies responsive to the angular position of the rotatable member, in a manner corresponding to the pattern of the function (f) in a period. Thereby the electric signal provided by the transducer (T) can be directly used for driving the controlled device (D).

摘要翻译： 公开了一种用于根据用于驱动受控设备（D）的规定周期函数（f）来控制物理量的量的控制装置。 所述控制装置包括脉冲轮装置，所述脉冲轮装置包括：可固定到可旋转构件（R）并且包括以预定角度区域以相反极性（N，S）磁化的区域的磁化构件（10），以及用于产生 随着可旋转磁化构件（10）的角位置变化而变化的模拟信号变化。 以相反极性（N，S）磁化的区域被布置成使得在可旋转构件的每转时，与换能器（T）连接的磁通量以对应于可旋转构件的角位置的方式响应于可旋转构件的角位置而变化 在一段时间内函数（f）的模式。 因此，由换能器（T）提供的电信号可以直接用于驱动受控装置（D）。

公开(公告)号：US20040119465A1

公开(公告)日：2004-06-24

申请号：US10328690

申请日：2002-12-23

申请人： American Electronic Components, Inc.

发明人： Edward Russell Clark

IPC分类号： G01P003/48 ,  G01B007/30

CPC分类号： G01D11/30 ,  B60T8/171 ,  F16C19/186 ,  F16C33/7876 ,  F16C41/007 ,  F16C2326/02 ,  G01D5/145 ,  G01D11/245 ,  G01P1/026 ,  G01P3/446

摘要： A wheel-speed sensor for generating signals representative of the wheel-speed of an individual wheel on a vehicle. Unlike known wheel-speed sensors, the wheel-speed sensor in accordance with the present invention is readily serviceable without disassembly of major components of the wheel assemblies and is relatively simple, and thus less expensive to manufacture, than known wheel-speed sensors. Two embodiments of the wheel-speed sensor in accordance with the present invention are disclosed. One embodiment relates to a nullbetween-the-rowsnull wheel-speed sensor which includes a magnetic exciter ring that is adapted to be affixed to a rotating axle between rolling element rows of a wheel bearing. In an alternate embodiment of the invention, the wheel-speed sensor is configured to form a grease seal which typically inserts into the end of an axle tube. A wheel-speed sensor utilizes a multiple pole magnetic exciter ring that is adapted to be attached to a rotating axle shaft. The wheel-speed sensor includes a two-piece stator which also functions as a grease seal which concentrates flux from a rotating multiple pole exciter ring. A coil of magnet wire or, alternatively, an active Hall effect device is used as the sensor and connects the two stator pieces, forming a flux bridge.

摘要翻译： 一种用于产生表示车辆上的单个车轮的车轮速度的信号的车轮速度传感器。 与已知的车轮速度传感器不同，根据本发明的车轮速度传感器在不拆卸车轮组件的主要部件的情况下是易于维修的，并且比已知的车轮速度传感器相对简单并且因此制造成本更低。 公开了根据本发明的车轮速度传感器的两个实施例。 一个实施例涉及一种“行间”轮速传感器，其包括适于固定到车轮轴承的滚动元件排之间的旋转轴的磁激励器环。 在本发明的替代实施例中，车轮速度传感器构造成形成通常插入轴管端部的润滑脂密封件。 车轮速度传感器使用适于附接到旋转车轴的多极励磁机环。 车轮速度传感器包括两片定子，其也用作集中来自旋转多极励磁环的磁通的油脂密封。 使用线圈的电磁线或者有源霍尔效应装置作为传感器并且连接两个定子片，形成磁通桥。

公开(公告)号：US20040021457A1

公开(公告)日：2004-02-05

申请号：US10211834

申请日：2002-08-02

发明人： Curtis B. Johnson

IPC分类号： G01P003/56 ,  G01P003/48

CPC分类号： G01P13/045

摘要： A method and apparatus for sensing the speed and direction of a rotating target is disclosed. A first differential Hall package can be generally located opposite to a second differential Hall package, wherein the first differential Hall package and second differential Hall package comprise mirror images of one another. A first output signal can then be generated by the first differential Hall package and a second output signal by the second differential Hall package during a rotation of the rotating target. The first Hall output signal can thus be compared to the second Hall output signal during a shift of the rotating target from a sinusoidal phase to a non-sinusoidal phase thereof, thereby permitting accurate phase information indicative of the speed and direction of the rotating target to be obtained.

摘要翻译： 公开了一种用于感测旋转目标的速度和方向的方法和装置。 第一差分霍尔封装通常可以与第二差分霍尔封装相对，其中第一差分霍尔封装和第二差分霍尔封装包括彼此的镜像。 然后可以在旋转目标的旋转期间由第一差分霍尔封装产生第一输出信号和通过第二差分霍尔封装产生第二输出信号。 因此，在将旋转目标从正弦相位移动到非正弦相位期间，第一霍尔输出信号可以与第二霍尔输出信号进行比较，从而允许指示旋转目标的速度和方向的精确相位信息 得到。

公开(公告)号：US20030178990A1

公开(公告)日：2003-09-25

申请号：US10388625

申请日：2003-03-17

申请人： Electricfil Industrie

发明人： Laurent Dufour

IPC分类号： G01B007/30 ,  G01P003/48

CPC分类号： G01P3/488 ,  G01D5/147

摘要： The invention relates to a position and/or speed sensor comprising: a mobile target (2) a first permanent magnet (5) at least a second permanent magnet (11) and a probe (4) sensitive to the direction and intensity of a magnetic induction, and placed along the OZ axis such that when there is no tooth, the magnetic induction created by the first magnet passes through the probe along a direction opposite to the direction of magnetization. Magnetic inductions created by the permanent magnets (5, 11) have approximately equal values but in the opposite direction and in the presence of a tooth the absolute value of the variation of the magnetic induction detected by the probe (4) is at least greater than a trip threshold.

摘要翻译： 本发明涉及一种位置和/或速度传感器，包括：移动目标（2）第一永磁体（5），至少第二永磁体（11）和探针（4），其对磁性的方向和强度敏感 感应并且沿着OZ轴放置，使得当没有齿时，由第一磁体产生的磁感应沿着与磁化方向相反的方向通过探针。 由永磁体（5,11）产生的磁感应具有大致相等的值，但是在相反方向上，并且在存在齿的情况下，由探针（4）检测到的磁感应的变化的绝对值至少大于 行程门槛。

公开(公告)号：US20030137290A1

公开(公告)日：2003-07-24

申请号：US10338187

申请日：2003-01-07

发明人： Shih-Lien L. Lu

IPC分类号： G01P003/48 ,  G01P003/54

CPC分类号： G01R25/04 ,  Y10S331/02

摘要： The invention provides a structure, method and means for receiving a reference frequency and a variable frequency, differentiating the frequencies, and generating a logic pulse in response to a first frequency leading a second frequency, the frequencies having a small phase difference. In an aspect, the invention maintains a signal when the reference frequency and the variable frequency transition. In another aspect, the invention provides additional timing balance to prevent early generation of the logic pulses. In another aspect, the logic pulses drive a charge pump used in one of a phase-locked loop and a delay-locked loop.

公开(公告)号：US20030090260A1

公开(公告)日：2003-05-15

申请号：US09999507

申请日：2001-11-15

发明人： Joel D. Stolfus

IPC分类号： G01P003/48 ,  G01P003/54

CPC分类号： G01P3/489

摘要： A method and system for improving the duty cycle output of a vehicle speed sensor circuit is disclosed. The vehicle speed sensor circuit can be configured, for example as a binary counter, to provide a particular number of pulses per distance of vehicle travel. An output of the vehicle speed sensor circuit is generally divided by placing varying values on particular load pins of an associated counter circuit, thereby providing a substantially improved duty cycle output from the vehicle speed sensor circuit, which is independent of an associated sensor duty cycle. The output of the vehicle speed sensor circuit can be divided utilizing a toggle flip-flop circuit integrated with the vehicle speed sensor circuit. The toggle flip-flop can be configured as an edge-triggered toggle flip-flop. The vehicle speed sensor can be utilized to sense rotating members present in a vehicle. The vehicle speed sensor thus provides a digital pulse output for every tooth that passes in front of the vehicle speed sensor.

摘要翻译： 公开了一种用于改善车速传感器电路的占空比输出的方法和系统。 车速传感器电路可以被配置为例如作为二进制计数器，以提供每个车辆行驶距离的特定数量的脉冲。 车速传感器电路的输出通常通过在相关联的计数器电路的特定负载引脚上设置变化的值来分割，从而提供来自车速传感器电路的显着改进的占空比输出，其独立于相关联的传感器占空比。 可以使用与车速传感器电路集成的切换触发器电路来分配车速传感器电路的输出。 拨码触发器可以配置为边沿触发开关触发器。 车速传感器可用于检测车辆中存在的旋转部件。 因此，车速传感器为通过车速传感器前方的每个齿轮提供数字脉冲输出。

公开(公告)号：US20030080730A1

公开(公告)日：2003-05-01

申请号：US10001555

申请日：2001-10-31

申请人： SSI Technologies, Inc.

发明人： Michael G. Rick ,  Gary P. Schneider ,  Kenneth McDonald

IPC分类号： G01P003/48 ,  G01P003/54

CPC分类号： G01P1/026 ,  G01D11/245

摘要： An electronic sensor assembly that can be used in speed-sensing applications such as anti-lock brake systems. The sensor assembly includes a sensor element, a housing surrounding the sensor element, a sensor terminal connected to the sensor element and extending outside of the housing for electrically coupling the sensor element to a conductor, a connector terminal for mechanically and electrically coupling the sensor terminal to the conductor, and a splice band mechanically and electrically coupling the sensor terminal to the connector terminal without welding, soldering, or using a crimp bucket. In one aspect of the invention, the sensor assembly further includes a capacitor electrically and mechanically coupled to the sensor terminal and the connector terminal via the splice band. The sensor element is preferably an active sensor such as a magneto-resistive sensor or a Hall-Effect sensor.

摘要翻译： 一种电子传感器组件，可用于速度检测应用，如防抱死制动系统。 传感器组件包括传感器元件，围绕传感器元件的壳体，连接到传感器元件并延伸到壳体外部的传感器端子，用于将传感器元件电耦合到导体，用于机械地和电耦合传感器端子的连接器端子 以及将传感器端子机械地和电气地连接到连接器端子的接头带，而不需要焊接，焊接或使用压接桶。 在本发明的一个方面，传感器组件还包括经由接头带电和机械耦合到传感器端子和连接器端子的电容器。 传感器元件优选地是诸如磁阻传感器或霍尔效应传感器的有源传感器。

公开(公告)号：US20030020460A1

公开(公告)日：2003-01-30

申请号：US10206322

申请日：2002-07-29

发明人： Chia-Chang Hsu ,  Yen-John Chen ,  Chung-Hsien Lin

IPC分类号： G01P003/48

CPC分类号： H05K7/20209

摘要： A system for controlling the rotational speed of a fan, according to a reference clock having a reference frequency, is disclosed. The rotational speed corresponds to a fan rotational speed signal. The fan rotational speed controlling unit compares the reference clock with the fan rotational speed signal, to output a speed controlling signal. The voltage generating circuit generates a level signal corresponding to the speed controlling signal. The driving unit generates a driving signal to control the rotational speed of the fan according to the level signal. When the fan is assembled with the controlling system, only coils with the same turns need to be use to obtain various rated rotational speeds of fans of different specifications by altering the reference frequency of the controlling system. Because coils with different turns are not required in stock at the same time, the time cost and the manufacturing cost can be reduced.

摘要翻译： 公开了一种用于根据具有参考频率的参考时钟来控制风扇的转速的系统。 转速对应于风扇转速信号。 风扇转速控制单元将参考时钟与风扇转速信号进行比较，输出速度控制信号。 电压产生电路产生对应于速度控制信号的电平信号。 驱动单元产生驱动信号，以根据电平信号来控制风扇的转速。 当风扇与控制系统组装时，只需要使用具有相同转速的线圈，通过改变控制系统的参考频率来获得不同规格的风扇的各种额定转速。 由于同时不需要具有不同匝数的线圈，因此可以减少时间成本和制造成本。

公开(公告)号：US20020079886A1

公开(公告)日：2002-06-27

申请号：US10010220

申请日：2001-12-07

发明人： Young-Hwan Kim

IPC分类号： G01P003/48

CPC分类号： G01P1/026

摘要： Disclosed is a wheel speed sensor for a vehicle which has a function of detecting revolution of the wheel in order to provide a uniform braking power when a vehicle brakes. The wheel speed sensor is installed at a position adjacent to a sensor rotor of a hub in the vehicle. Guiding bosses protrude from an outer periphery surface of the bobbin in the radial direction. An injected and molded housing encloses the bobbin and the first lead frame, the second lead frame and the third frame. The rubber ring is fitted into the inserting groove to cause close contact with the inner side of the housing. From this structure, the wheel speed sensor can prevent a coil open circuit and has an enhanced durability.

摘要翻译： 公开了一种用于车辆的车轮速度传感器，其具有检测车轮的转动的功能，以便在车辆制动时提供均匀的制动力。 轮速传感器安装在与车辆中的轮毂的传感器转子相邻的位置处。 引导凸起在径向方向上从筒管的外周面突出。 注射和模制的壳体围绕线轴和第一引线框架，第二引线框架和第三框架。 橡胶圈安装在插槽内，与壳体的内侧紧密接触。 从这种结构，车轮速度传感器可以防止线圈开路并且具有增强的耐久性。