公开(公告)号：US08203333B2

公开(公告)日：2012-06-19

申请号：US12491576

申请日：2009-06-25

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： B62D15/0215 ,  G01D5/145

摘要： A rotation angle detecting device includes a housing, a rotating shaft rotatably held by the housing, a driving gear fixed to the rotating shaft, a driven gear engaged with the driving gear, a magnetic field generating part fixed in the driven gear, having a permanent magnet, and configured to generate a magnetic field, a magnetic sensor element configured to detect a change in the magnetic field due to a rotational movement of the magnetic field generating part, and a signal processor configured to process a signal from the magnetic sensor element for detecting a rotation angle of the rotating shaft. Each of teeth of the driving gear has a first circumferential width, each of teeth of the driven gear has a second circumferential width, and the second circumferential width is greater than the first circumferential width.

摘要翻译： 旋转角度检测装置包括壳体，由壳体可旋转地保持的旋转轴，固定到旋转轴的驱动齿轮，与驱动齿轮啮合的从动齿轮，固定在从动齿轮中的磁场产生部，具有永久 磁体，并且被配置为产生磁场;磁传感器元件，被配置为检测由于磁场产生部分的旋转运动引起的磁场变化;以及信号处理器，被配置为处理来自磁传感器元件的信号， 检测旋转轴的旋转角度。 驱动齿轮的每个齿具有第一周向宽度，从动齿轮的每个齿具有第二周向宽度，并且第二周向宽度大于第一周向宽度。

公开(公告)号：US08030917B2

公开(公告)日：2011-10-04

申请号：US12331920

申请日：2008-12-10

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30 ,  G01P3/00

CPC分类号： G01D5/145

摘要： A pair of cylindrical magnets with cut away portions has been arranged on both sides of a magnetic sensing element in symmetry of rotation, and a yoke surrounds the magnetic sensing element in contact with outer peripheral surfaces of the pair of the cylindrical magnets with cut away portions. The pair of the cylindrical magnets with cut away portions rotates around an axial center with a concurrent axial displacement along with a rotation of a rotating body. The pair of the cylindrical magnets with cut away portions is arranged in inclined manner against an axis-of-rotation of the magnet. Thereby, the rotation and the displacement in the direction of the axis against the magnetic sensing element of the pair of the cylindrical magnets with cut away portions, and the number of times of rotation can be detected by detecting the size of the magnetic flux density by the magnetic sensing element. The pair of the cylindrical magnets with cut away portions improves the size and linearity of the magnetic field on the axial center.

摘要翻译： 具有切除部分的一对圆柱形磁体已经布置在旋转对称的磁感测元件的两侧，并且轭围绕与一对圆柱形磁体的外周表面接触的磁感测元件，其具有切除部分 。 具有切除部分的一对圆柱形磁体随轴向中心旋转，同时具有旋转体的旋转轴向位移。 具有切除部分的一对圆柱形磁体以相对于磁体的旋转轴线倾斜的方式布置。 因此，可以通过检测磁通密度的大小来检测相对于具有切除部分的一对圆柱形磁体的磁感应元件的轴线的旋转和位移，以及旋转次数 磁感应元件。 具有切除部分的一对圆柱形磁体改善了轴向中心上的磁场的尺寸和线性。

公开(公告)号：US20090146650A1

公开(公告)日：2009-06-11

申请号：US12331796

申请日：2008-12-10

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya ,  Naoki Nakane

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya ,  Naoki Nakane

IPC分类号： G01B7/30

CPC分类号： G01D5/04 ,  G01D5/145 ,  Y10T74/19

摘要： A driving gear, which is a scissors gear, fixed to a rotating body, engages with a driven gear, and the driven gear engages with a fixed screw receiver. A first gear and a second gear of the driving gear elastically bias the tooth of the driven gear by a coil spring in the direction of an inner side of a diameter; consequently the driven gear 5 is forced on the screw receiver. Gears formed in the tooth tips of the driven gear engage with a partial spiral screw of the screw receiver.

摘要翻译： 固定在旋转体上的作为剪刀齿轮的驱动齿轮与从动齿轮啮合，从动齿轮与固定螺丝接收器啮合。 驱动齿轮的第一齿轮和第二齿轮通过螺旋弹簧沿直径内侧的方向弹性偏压从动齿轮的齿; 因此从动齿轮5被迫在螺钉接收器上。 在从动齿轮的齿尖中形成的齿轮与螺旋接收器的部分螺旋螺钉啮合。

公开(公告)号：US20090319120A1

公开(公告)日：2009-12-24

申请号：US12486275

申请日：2009-06-17

申请人： Shinji HATANAKA ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji HATANAKA ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G06F7/00

CPC分类号： B62D15/0215 ,  B62D5/049 ,  G01D5/145

摘要： A steering angle sensor includes a magnetized body coupled through a gear to a steering shaft so as to rotate with rotation of the steering shaft, a magnetic sensing device for detecting a magnetic field generated by the magnetized body, a signal processing device for detecting a direction of the magnetic field based on the detected magnetic field and for detecting a steering angle of the steering shaft based on the direction of the magnetic field, a correlation signal output sensor mounted on the vehicle to output a correlation signal correlated with the steering angle, and a signal check circuit for determining whether the steering angle is valid or invalid based on comparison between the steering angle and the correlation signal.

摘要翻译： 转向角传感器包括通过齿轮耦合到转向轴的磁化体，以便随着转向轴的旋转而旋转，用于检测由磁化体产生的磁场的磁感测装置，用于检测方向的信号处理装置 基于检测到的磁场的磁场和用于基于磁场的方向检测转向轴的转向角的相关信号输出传感器，安装在车辆上以输出与转向角相关的相关信号;以及 信号检查电路，用于基于转向角和相关信号之间的比较来确定转向角是有效还是无效。

公开(公告)号：US07420363B2

公开(公告)日：2008-09-02

申请号：US11797424

申请日：2007-05-03

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： A rotation angle of a shaft is detected based on changes in levels of magnetic flux from a single magnet that is mounted on the shaft and is moved axially in accordance with rotation of the shaft. Respective detected variations in level of X-direction and Y-direction magnetic flux components (each at right angles to the shaft axis) are used to obtain a first quantity that varies monotonically, and a second quantity that varies periodically, in accordance with increased rotation angle. An accurate value of the shaft rotation angle is calculated based on the first and second quantities, in combination.

摘要翻译： 基于来自安装在轴上的单个磁体的磁通量的水平的变化，并且根据轴的旋转轴向移动来检测轴的旋转角度。 使用各自检测到的X方向和Y方向磁通量分量（每个与轴轴成直角）的变化，以获得单调变化的第一数量和根据增加的旋转周期性地变化的第二数量 角度。 基于第一和第二数量组合地计算轴旋转角度的精确值。

公开(公告)号：US20070268015A1

公开(公告)日：2007-11-22

申请号：US11797424

申请日：2007-05-03

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： A rotation angle of a shaft is detected based on changes in levels of magnetic flux from a single magnet that is mounted on the shaft and is moved axially in accordance with rotation of the shaft. Respective detected variations in level of X-direction and Y-direction magnetic flux components (each at right angles to the shaft axis) are used to obtain a first quantity that varies monotonically, and a second quantity that varies periodically, in accordance with increased rotation angle. An accurate value of the shaft rotation angle is calculated based on the first and second quantities, in combination.

摘要翻译： 基于来自安装在轴上的单个磁体的磁通量的水平的变化，并且根据轴的旋转轴向移动来检测轴的旋转角度。 使用各自检测到的X方向和Y方向磁通量分量（每个与轴轴成直角）的变化，以获得单调变化的第一数量和根据增加的旋转周期性地变化的第二数量 角度。 基于第一和第二数量组合地计算轴旋转角度的精确值。

公开(公告)号：US20070194786A1

公开(公告)日：2007-08-23

申请号：US11707158

申请日：2007-02-16

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： A rotation angle detecting device is rotated by a rotating object via a gear mechanism to detect a rotation angle of the rotating object. The rotation angle detecting device includes a housing, a magnet rotor unit having a permanent magnet and a central hole, a magnetic sensor unit including a pair of magnetic sensor elements each of which detects magnetic flux density of a magnetic field generated by the permanent magnet in a direction different from the other, and a signal processor that calculates a rotation angle of the rotating object from the magnetic flux density. The magnetic rotor unit includes a mechanism for changing the magnetic flux density as the number of turns of the magnet rotor unit changes.

公开(公告)号：US07969147B2

公开(公告)日：2011-06-28

申请号：US12060496

申请日：2008-04-01

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： G01D5/145 ,  G01D5/04

摘要： A rotation angle detecting device includes a signal generator, a magnetic rotor and a rotation angle calculating unit that calculates a rotation angle θ of the rotor based on the output signals of the signal generator. The signal generator includes a magnetic rotor that has a permanent magnet and a shaft connectable with the rotating object and at least three magnetic sensor elements disposed in the magnetic field to generate a plurality of output signals when the rotor rotates. The rotation angle calculating unit calculates a first candidate of the rotation angle θ from a first pair of the three output signals, examines whether the first candidate of the rotation angle θ is normal or not and calculates a next candidate of the rotation angle θ from another pair of the three output signals if the first candidate of the rotation angle θ is not normal, examines whether the next candidate of the rotation angle θ is normal or not, repeats the above two steps until a next candidate of the rotation angle θ is judged normal, and outputs one of the first and next candidates of the rotation angle θ as a formal rotation angle if it is judged normal.

摘要翻译： 旋转角度检测装置包括信号发生器，磁转子和计算旋转角度的旋转角度计算单元; 基于信号发生器的输出信号。 信号发生器包括磁转子，其具有永磁体和可旋转物体连接的轴以及设置在磁场中的至少三个磁传感器元件，以在转子旋转时产生多个输出信号。 旋转角度计算单元计算旋转角度的第一候选; 从第一对三个输出信号中，检查旋转角度的第一候选者是否为; 是否正常，并计算旋转角度的下一个候选者; 如果第一个候选的旋转角度＆amp;θ，则来自另一对三个输出信号; 不正常，检查下一个候选人的旋转角度和角度; 是否正常，重复上述两个步骤，直到下一个候选的旋转角度＆amp; 判断为正常，并输出旋转角度＆amp; t的第一和下一个候选中的一个; 如果判断正常，则作为正式旋转角度。

公开(公告)号：US20090322320A1

公开(公告)日：2009-12-31

申请号：US12491576

申请日：2009-06-25

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： B62D15/0215 ,  G01D5/145

摘要： A rotation angle detecting device includes a housing, a rotating shaft rotatably held by the housing, a driving gear fixed to the rotating shaft, a driven gear engaged with the driving gear, a magnetic field generating part fixed in the driven gear, having a permanent magnet, and configured to generate a magnetic field, a magnetic sensor element configured to detect a change in the magnetic field due to a rotational movement of the magnetic field generating part, and a signal processor configured to process a signal from the magnetic sensor element for detecting a rotation angle of the rotating shaft. Each of teeth of the driving gear has a first circumferential width, each of teeth of the driven gear has a second circumferential width, and the second circumferential width is greater than the first circumferential width.

摘要翻译： 旋转角度检测装置包括壳体，由壳体可旋转地保持的旋转轴，固定到旋转轴的驱动齿轮，与驱动齿轮啮合的从动齿轮，固定在从动齿轮中的磁场产生部，具有永久 磁体，并且被配置为产生磁场;磁传感器元件，被配置为检测由于磁场产生部分的旋转运动引起的磁场变化;以及信号处理器，被配置为处理来自磁传感器元件的信号， 检测旋转轴的旋转角度。 驱动齿轮的每个齿具有第一周向宽度，从动齿轮的每个齿具有第二周向宽度，并且第二周向宽度大于第一周向宽度。

公开(公告)号：US20080284421A1

公开(公告)日：2008-11-20

申请号：US12060496

申请日：2008-04-01

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： G01D5/145 ,  G01D5/04

摘要： A rotation angle detecting device includes a signal generator, a magnetic rotor and a rotation angle calculating unit that calculates a rotation angle θ of the rotor based on the output signals of the signal generator. The signal generator includes a magnetic rotor that has a permanent magnet and a shaft connectable with the rotating object and at least three magnetic sensor elements disposed in the magnetic field to generate a plurality of output signals when the rotor rotates. The rotation angle calculating unit calculates a first candidate of the rotation angle θ from a first pair of the three output signals, examines whether the first candidate of the rotation angle θ is normal or not and calculates a next candidate of the rotation angle θ from another pair of the three output signals if the first candidate of the rotation angle θ is not normal, examines whether the next candidate of the rotation angle θ is normal or not, repeats the above two steps until a next candidate of the rotation angle θ is judged normal, and outputs one of the first and next candidates of the rotation angle θ as a formal rotation angle if it is judged normal.

摘要翻译： 旋转角检测装置包括信号发生器，磁转子和旋转角度计算单元，其基于信号发生器的输出信号计算转子的旋转角度θ。 信号发生器包括磁转子，其具有永磁体和可旋转物体连接的轴以及设置在磁场中的至少三个磁传感器元件，以在转子旋转时产生多个输出信号。 旋转角度计算单元从三个输出信号的第一对计算旋转角度θ的第一候选，检查旋转角度θ的第一候选是否正常，并从另一个计算旋转角度θ的下一候选 检查旋转角度θ的下一个候选是否正常，检查旋转角度θ的第一个候选是否正常，重复上述两个步骤，直到判断旋转角度θ的下一个候选者为止 如果判断正常，则将旋转角度θ的第一和下一个候选中的一个输出为正式旋转角。