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    • 2. 发明申请
    • Angular position sensor
    • 角位置传感器
    • US20040257071A1
    • 2004-12-23
    • US10600103
    • 2003-06-20
    • Jack Chen
    • G01B007/30
    • G01D5/2033G01D5/145
    • A rotational position sensor includes a rotor having a magnetic member thereon, with a positive pole positioned at one point on the outer circumference of the rotor and a negative pole on the circumference of the rotor 180 degrees from the positive pole. The angular position sensor includes a housing with a detector thereon for detecting the magnetic polarity of the portion of the rotor nearest the detector. The output from the detector is an AC current, the wave of which is indicative of the angular orientation of the shaft around which the rotor is mounted.
    • 旋转位置传感器包括其上具有磁性构件的转子,正极位于转子的外周上的一个点处,转子圆周上的负极与正极成180度。 角位置传感器包括壳体,其上具有检测器,用于检测最靠近检测器的转子部分的磁极性。 来自检测器的输出是交流电流,其波形表示转子安装在其周围的轴的角度定向。
    • 6. 发明申请
    • Pulse wheel control device
    • 脉冲轮控制装置
    • US20040150394A1
    • 2004-08-05
    • US10760861
    • 2004-01-20
    • RFT S.P.A.
    • Aurelio NervoAlberto Visconti
    • G01B007/30G01P003/48
    • G01D5/14G01D5/142G01P3/487
    • 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).
    • 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)。
    • 8. 发明申请
    • Wheel-speed sensor
    • 车轮速度传感器
    • US20040119465A1
    • 2004-06-24
    • US10328690
    • 2002-12-23
    • American Electronic Components, Inc.
    • Edward Russell Clark
    • G01P003/48G01B007/30
    • G01D11/30B60T8/171F16C19/186F16C33/7876F16C41/007F16C2326/02G01D5/145G01D11/245G01P1/026G01P3/446
    • 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.
    • 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。
    • 9. 发明申请
    • Method for correcting the determination of the rotational position of a commutated DC motor drive shaft
    • 用于校正换向的直流电动机驱动轴的旋转位置的确定的方法
    • US20040100250A1
    • 2004-05-27
    • US10680823
    • 2003-10-07
    • Leopold Kostal GmbH & Co. KG
    • Tobias Gerlach
    • G01P003/46G01B007/30
    • H02P7/0094G01P3/48H02P7/2805
    • A method for determining the position of an element driven by the drive shaft of a commutated direct current (DC) motor includes counting current ripples detected in an armature current signal as the motor rotatably drives the shaft. A frequency spectral analysis of the armature current signal is performed to determine frequency components of the armature current signal. The frequency components are analyzed to determine which of the frequency components is indicative of the current ripple frequency. The current ripple frequency is monitored for changes over time while the motor drives the shaft. The number of counted ripples is modified upon a change in the current ripple frequency in a time interval if the current ripple frequency change deviates from the current ripple frequency more than a threshold deviation for the time interval. The rotational position of the shaft is determined based on the modified number of counted ripples.
    • 用于确定由换向直流(DC)电动机的驱动轴驱动的元件的位置的方法包括当电动机可旋转地驱动轴时,对电枢电流信号中检测到的电流波纹进行计数。 执行电枢电流信号的频谱分析以确定电枢电流信号的频率分量。 分析频率分量以确定哪些频率分量表示当前纹波频率。 当电机驱动轴时,监测当前纹波频率随时间的变化。 如果当前纹波频率变化偏离当前纹波频率大于时间间隔的阈值偏差,则在时间间隔内当前纹波频率的变化修改计数波纹数。 轴的旋转位置基于经修改的计数的波纹数确定。
    • 10. 发明申请
    • Rotation sensor and method for detecting a rotation angle of a rotating member
    • 用于检测旋转构件的旋转角度的旋转传感器和方法
    • US20040085063A1
    • 2004-05-06
    • US10674571
    • 2003-09-30
    • The Furukawa Electric Co., Ltd.
    • Dongzhi JinFumihiko Abe
    • G01B007/30G01L003/10
    • G01D5/202
    • A rotation sensor includes a rotor rotatable together with an automotive steering shaft, a conductive band formed on the rotor, a magnetic coil/core unit fixed near the rotor, the unit having a core body and an exciting coil, and a rotation angle detection circuit electrically connected to the coil. The width of the band gradually increases along a half-circumference of the rotor and then gradually decreases along the remaining half-circumference of the rotor, as viewed in the rotating direction of the rotor. The detection circuit applies an alternating signal to the coil. As the rotor is rotated with the alternating signal applied to the coil, the band causes the impedance of the coil to change in accordance with the rotation angle of the rotor, and based on the impedance change, the detection circuit detects the rotation angle of the rotor, that is, the steering shaft.
    • 旋转传感器包括与汽车转向轴一起旋转的转子,形成在转子上的导电带,固定在转子附近的磁性线圈/芯单元,具有芯体和励磁线圈的单元和旋转角度检测电路 电连接到线圈。 沿着转子的半周,带的宽度逐渐增加,然后沿转子的旋转方向观察,沿着转子的剩余半周逐渐减小。 检测电路向线圈施加交替信号。 当转子以施加到线圈的交变信号旋转时,该带使线圈的阻抗根据转子的旋转角度而改变,并且基于阻抗变化,检测电路检测转子的旋转角度 转子,即转向轴。