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    • 11. 发明授权
    • Air pressure detecting device for wheel
    • 车轮气压检测装置
    • US06753768B2
    • 2004-06-22
    • US09988765
    • 2001-11-20
    • Toshio YamagiwaTomoyuki HaradaOsamu Bunya
    • Toshio YamagiwaTomoyuki HaradaOsamu Bunya
    • B60C2300
    • B60C23/006B60C23/0408B60C23/0494
    • An air pressure detecting device serves to detect the air pressure of a wheel of a vehicle which has a tire tube disposed in a tire, the air pressure detecting device is disposed between the tire tube and the rim of the wheel portion for detecting the air pressure of the tire. The air pressure detecting device has a pressure bearing plate held in contact with the outer surface of the tire tube, a pressure sensor for detecting a pressure of the pressure bearing plate, and a detecting and transmitting unit for detecting pressure information from the pressure sensor, converting the pressure information into an electric signal, and transmitting the electric signal as a radio wave. The pressure bearing plate, the pressure sensor, and the detecting and transmitting unit are superposed in the order named. The components including the pressure bearing plate, the pressure sensor, and the detecting and transmitting circuit can be installed without the need for a special modification of the tire tube and the rim. As a result, the cost of the air pressure detecting device can be reduced.
    • 气压检测装置用于检测具有设置在轮胎中的轮胎胎的车辆的车轮的空气压力,气压检测装置设置在轮胎管与车轮部分的轮辋之间,用于检测气压 的轮胎。 气压检测装置具有与轮胎管的外表面保持接触的压力承载板,用于检测承压板的压力的压力传感器,以及用于检测来自压力传感器的压力信息的检测和传递单元, 将压力信息转换为电信号,并将电信号作为无线电波发送。 压力承载板,压力传感器和检测和传输单元按照命名重叠。 可以安装包括压力承载板,压力传感器和检测和传输回路的部件,而不需要对轮胎管和轮辋进行特殊的修改。 结果,可以降低气压检测装置的成本。
    • 14. 发明申请
    • ROTATION ANGLE DETECTOR
    • 旋转角度检测器
    • US20120025811A1
    • 2012-02-02
    • US13165835
    • 2011-06-22
    • Tomoyuki HARADA
    • Tomoyuki HARADA
    • G01B7/30
    • G01B7/30G01D5/145
    • A rotation angle detector for detecting a rotation angle of a magnet rotator includes: the rotator with a magnet mounted on a rotation shaft; a sensor chip; and an operation element. The chip includes: first and second normal component detection elements for detecting a magnetic field along with a normal direction and first and second rotation component detection elements for detecting a magnetic field along with a rotation direction. A phase difference Δθ, output signals S1, S2, C1, C2 of the detection elements, a value ΔθbR obtained by differentiating a component of the magnetic field along with the normal direction with respect to the rotation direction, and a value Δθbθ obtained by differentiating a component of the magnetic field along with the rotation direction with respect to the rotation direction satisfies: S 1 - S 2 Δθ ≅ Δ θ  b R and C 1 - C 2 Δθ ≅ Δ θ  b θ The operation element calculates: C 1 + α   S 1 - S 2 Δθ and S 1 - β   C 1 - C 2 Δθ
    • 用于检测磁体旋转体的旋转角度的旋转角度检测器包括:旋转体,其具有安装在旋转轴上的磁体; 传感器芯片; 和操作元件。 芯片包括:用于检测与法线方向相关的磁场的第一和第二正常分量检测元件,以及用于与旋转方向一起检测磁场的第一和第二旋转分量检测元件。 检测元件的输出信号S1,S2,C1,C2的相位差&Dgr;输出信号,通过将磁场的分量与法线方向相对于旋转方向进行微分而得到的值&Dgr& 和价值&Dgr;&thetas; b&thetas; 通过将磁场的分量与旋转方向相对于旋转方向分离而获得的满足:S 1 -S 2&Dgr;Θ ≅&Dgr &thetas; b R和C 1 -C 2&Dgr;&Thetas; ≅&Dgr &thetas; b&thetas; 操作元素计算:C 1 +αS 1 -S 2&Dgr;&Thetas; 和S 1 - &bgr; 陈奕C 1 - C 2&Dgr;&thetas;
    • 15. 发明申请
    • ROTATOR SENSOR
    • 旋转传感器
    • US20110246133A1
    • 2011-10-06
    • US13031810
    • 2011-02-22
    • Tomoyuki HARADAHirofumi UenoyamaTakashi Ishikawa
    • Tomoyuki HARADAHirofumi UenoyamaTakashi Ishikawa
    • G01B7/30G06F15/00
    • G01D5/145
    • A rotation sensor includes: a magnetism generator; a sensor chip having a magneto-resistance element region and a Hall element region; and a detection circuit for detecting a relative rotation angle with reference to the magnetism generator according to output signals from each magneto-resistance element and each Hall element to detect. A phase difference is provided between output signals from the magneto-resistance elements. A phase difference is provided between output signals from the Hall elements. The magneto-resistance element region and the Hall element region at least partially overlap with each other. The detection circuit includes a comparison section, an angle computing section, and an output section. The comparison section compares an output level from each Hall element with a predetermined threshold value level, and provides a comparison result for each Hall element. The angle computing section calculates a calculation angle corresponding to the relative rotation angle with using an output signal from each magneto-resistance element. The output section compares the calculation angle with a predetermined threshold value, and provides a comparison result for each magneto-resistance element. The output section outputs a signal corresponding to the relative rotation angle based on a comparison result from the output section and a comparison result from the comparison section.
    • 旋转传感器包括:磁性发生器; 具有磁阻元件区域和霍尔元件区域的传感器芯片; 以及检测电路,用于根据来自每个磁阻元件和每个霍尔元件的输出信号检测相对于磁性发生器的相对旋转角度。 在来自磁阻元件的输出信号之间提供相位差。 在霍尔元件的输出信号之间提供相位差。 磁阻元件区域和霍尔元件区域至少部分地彼此重叠。 检测电路包括比较部分,角度计算部分和输出部分。 比较部分将每个霍尔元件的输出电平与预定阈值电平进行比较,并为每个霍尔元件提供比较结果。 角度计算部分使用来自每个磁阻元件的输出信号计算与相对旋转角度对应的计算角度。 输出部分将计算角与预定阈值进行比较,并提供每个磁阻元件的比较结果。 输出部基于来自输出部的比较结果和比较部的比较结果,输出与相对旋转角对应的信号。
    • 20. 发明授权
    • Tire pressure detecting system
    • 轮胎压力检测系统
    • US07075417B2
    • 2006-07-11
    • US10319607
    • 2002-12-16
    • Tomoyuki HaradaToshio Yamagiwa
    • Tomoyuki HaradaToshio Yamagiwa
    • B60C23/00
    • B60C23/0408B60C23/006B60C23/0401
    • A fluctuation warning unit for issuing a warning when fluctuations of the tire pressure per unit time exceed a predetermined threshold fluctuation, and a detected value warning unit for issuing a warning when a detected value of the tire pressure has fallen to a value below a predetermined threshold detected value are provided. For example, air leakage may be recognized rapidly, and abnormalities of air pressure may be recognized even when a faint air leakage occurs wherein fluctuations of the tire pressure per unit time do not exceed the predetermined threshold fluctuation.
    • 一种波动警告单元,用于当每单位时间的轮胎压力的波动超过预定的阈值波动时发出警告;以及检测值警告单元,用于当轮胎压力的检测值下降到低于预定阈值的值时发出警告 提供检测值。 例如,即使在发生微小的空气泄漏的情况下也能够快速识别出空气泄漏,并且即使在单位时间内的轮胎压力的波动不超过规定的阈值波动的情况下也能够识别出气压异常。