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公开(公告)号：US07352173B2
公开(公告)日：2008-04-01
申请号：US10821934
申请日：2004-04-12
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
CPC分类号： G01D5/145
摘要： External magnetic members are provided outside the outer periphery of a rotor. When the rotor is positioned around its turning angle of 70 degrees, part of the magnetic fluxes generated by magnets pass through the external magnetic members. This makes it possible to reduce the magnetic fluxes passing through Hall ICs around the turning angle of 70 degrees, thereby linearizing the change characteristic of the magnetic flux density. Thus, it is possible to generally linearize the change characteristic of the density of the magnetic fluxes through the Hall ICs 7, with the detectable angle range kept wide.
摘要翻译： 外部磁性构件设置在转子的外周的外侧。 当转子围绕其转动角度70度定位时，由磁体产生的磁通的一部分通过外部磁性部件。 由此，能够将通过霍尔IC的磁通减小70度的转动角度，从而使磁通密度的变化特性线性化。 因此，可以通过霍尔IC7大致线性化磁通密度的变化特性，其中检测角度范围保持较宽。
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2.发明授权公开(公告)号：US07560919B2
公开(公告)日：2009-07-14
申请号：US11529298
申请日：2006-09-29
申请人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
发明人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.
摘要翻译： 检测旋转物体的旋转角度的旋转角度检测装置包括响应于旋转物体，磁性传感器，第一磁轭和第二磁轭的旋转而产生磁场的永久磁铁。 磁传感器包括一对紧密集成的磁感应元件，诸如霍尔元件，设置在永磁体周围的位置，使得感测元件中的一个感测不同于另一个的相位的磁场。 第一磁轭和第二磁轭在磁传感器处形成彼此相交的两个磁路。
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公开(公告)号：US20060170419A1
公开(公告)日：2006-08-03
申请号：US11341537
申请日：2006-01-30
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
IPC分类号： G01B7/30
CPC分类号： G01D5/24438 , G01D5/145
摘要： A rotation angle detector for detecting change in the magnetic flux has a magnetic sensor being disposed at a position in a space between an outer surface of a shaft and a periphery of the magnetic flux generation means. A supplementary magnet is also used in a space that is enclosed in a circular trace of the magnetic sensor around the shaft for even distribution of the magnetic flux generated by the magnetic flux generation means.
摘要翻译： 用于检测磁通量变化的旋转角检测器具有磁传感器，该磁传感器设置在轴的外表面和磁通量产生装置的周边之间的空间中的位置。 辅助磁体也用于围绕轴围绕在磁传感器的圆形轨迹中的空间，以便均匀分布由磁通量产生装置产生的磁通量。
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公开(公告)号：US07339371B2
公开(公告)日：2008-03-04
申请号：US11341537
申请日：2006-01-30
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Takeda , Takashi Kawashima , Tatsuya Kitanaka , Koichiro Matsumoto , Takao Ban
IPC分类号： G01B7/30
CPC分类号： G01D5/24438 , G01D5/145
摘要： A rotation angle detector for detecting change in the magnetic flux has a magnetic sensor being disposed at a position in a space between an outer surface of a shaft and a periphery of the magnetic flux generation means. A supplementary magnet is also used in a space that is enclosed in a circular trace of the magnetic sensor around the shaft for even distribution of the magnetic flux generated by the magnetic flux generation means.
摘要翻译： 用于检测磁通量变化的旋转角检测器具有磁传感器，该磁传感器设置在轴的外表面和磁通量产生装置的周边之间的空间中的位置。 辅助磁体也用于围绕轴围绕在磁传感器的圆形轨迹中的空间，以便均匀分布由磁通量产生装置产生的磁通量。
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公开(公告)号：US20070069719A1
公开(公告)日：2007-03-29
申请号：US11529298
申请日：2006-09-29
申请人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
发明人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.
摘要翻译： 检测旋转物体的旋转角度的旋转角度检测装置包括响应于旋转物体，磁性传感器，第一磁轭和第二磁轭的旋转而产生磁场的永久磁铁。 磁传感器包括一对紧密集成的磁感应元件，诸如霍尔元件，设置在永磁体周围的位置，使得感测元件中的一个感测不同于另一个的相位的磁场。 第一磁轭和第二磁轭在磁传感器处形成彼此相交的两个磁路。
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公开(公告)号：US20060028203A1
公开(公告)日：2006-02-09
申请号：US11168381
申请日：2005-06-29
申请人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
发明人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
IPC分类号： G01B7/14
CPC分类号： G01D5/145
摘要： An improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed. The rotation angle detecting device includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed to the second member to provide output signals whose phase is different from each other at 90 degrees in angle. The magnet unit includes a pair of disk plates that has the same magnetic poles at the same circumferential positions and is disposed at a prescribed axial distance and a shaft that is made of magnetic material to support the disk plates at the center thereof. The magnetic unit provides a uniform magnetic field in a space around the shaft between the pair of disk plates, and a pair of magnetic sensors is disposed in the space.
摘要翻译： 提出了一种改进的旋转角度检测装置，其检测第一构件相对于第二构件的旋转角度。 旋转角检测装置包括固定到第一构件的磁体单元和固定到第二构件的一对磁性传感器，以提供90度角相位彼此不同的输出信号。 磁体单元包括一对圆盘板，它们在相同的圆周位置处具有相同的磁极并且以规定的轴向距离设置，以及由磁性材料制成的轴，以在其中心处支撑盘片。 磁性单元在一对盘片之间的轴周围的空间中提供均匀的磁场，并且在该空间中设置一对磁性传感器。
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公开(公告)号：US07319320B2
公开(公告)日：2008-01-15
申请号：US11168381
申请日：2005-06-29
申请人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
发明人： Takashi Kawashima , Koichiro Matsumoto , Tatsuya Kitanaka , Takao Ban , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura
CPC分类号： G01D5/145
摘要： An improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed. The rotation angle detecting device includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed to the second member to provide output signals whose phase is different from each other at 90 degrees in angle. The magnet unit includes a pair of disk plates that has the same magnetic poles at the same circumferential positions and is disposed at a prescribed axial distance and a shaft that is made of magnetic material to support the disk plates at the center thereof. The magnetic unit provides a uniform magnetic field in a space around the shaft between the pair of disk plates, and a pair of magnetic sensors is disposed in the space.
摘要翻译： 提出了一种改进的旋转角度检测装置，其检测第一构件相对于第二构件的旋转角度。 旋转角检测装置包括固定到第一构件的磁体单元和固定到第二构件的一对磁性传感器，以提供90度角相位彼此不同的输出信号。 磁体单元包括一对圆盘板，它们在相同的圆周位置处具有相同的磁极并且以规定的轴向距离设置，以及由磁性材料制成的轴，以在其中心处支撑盘片。 磁性单元在一对盘片之间的轴周围的空间中提供均匀的磁场，并且在该空间中设置一对磁性传感器。
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公开(公告)号：US07696746B2
公开(公告)日：2010-04-13
申请号：US11647568
申请日：2006-12-29
CPC分类号： G01D5/202 , F02B39/16 , F02B2039/168 , G01P3/488 , G01P3/49
摘要： A turbine wheel of a turbocharger has a turbine blade. The turbine blade has a fin shape of which width in the rotation direction of the turbocharger is narrow, and is projected from the base portion of the turbine wheel. An inclined part of the turbine blade is inclined with respect to the rotation direction of the turbocharger. A coil is disposed so that the inclined part passes nearby as the turbine wheel rotates in a posture that an end in the center axis direction is directed toward the turbocharger. A detector detects a change in inductance, which occurs when the inclined part of the coil passes nearby.
摘要翻译： 涡轮增压器的涡轮机叶轮具有涡轮叶片。 涡轮叶片具有在涡轮增压器的旋转方向上的宽度窄的翅片形状，并且从涡轮机叶轮的基部突出。 涡轮叶片的倾斜部分相对于涡轮增压器的旋转方向倾斜。 线圈被设置成使得倾斜部分随着涡轮机叶轮以中心轴线方向的端部朝向涡轮增压器的姿态旋转而经过附近。 检测器检测当线圈的倾斜部分经过附近时发生的电感变化。
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公开(公告)号：US20070268014A1
公开(公告)日：2007-11-22
申请号：US11647568
申请日：2006-12-29
IPC分类号： G01B7/00
CPC分类号： G01D5/202 , F02B39/16 , F02B2039/168 , G01P3/488 , G01P3/49
摘要： A turbine wheel of a turbocharger has a turbine blade. The turbine blade has a fin shape of which width in the rotation direction of the turbocharger is narrow, and is projected from the base portion of the turbine wheel. An inclined part of the turbine blade is inclined with respect to the rotation direction of the turbocharger. A coil is disposed so that the inclined part passes nearby as the turbine wheel rotates in a posture that an end in the center axis direction is directed toward the turbocharger. A detector detects a change in inductance, which occurs when the inclined part of the coil passes nearby.
摘要翻译： 涡轮增压器的涡轮机叶轮具有涡轮叶片。 涡轮叶片具有在涡轮增压器的旋转方向上的宽度窄的翅片形状，并且从涡轮机叶轮的基部突出。 涡轮叶片的倾斜部分相对于涡轮增压器的旋转方向倾斜。 线圈被设置成使得倾斜部分随着涡轮机叶轮以中心轴线方向的端部朝向涡轮增压器的姿态旋转而经过附近。 检测器检测当线圈的倾斜部分经过附近时发生的电感变化。
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公开(公告)号：US06501265B2
公开(公告)日：2002-12-31
申请号：US09811577
申请日：2001-03-20
IPC分类号： G01B714
CPC分类号： G01D5/145
摘要： An angular position detection device has a rotor that comprises two magnets and a primary yoke, and a stator that comprises a pair of auxiliary yokes and a magnetism detection element. The rotor is fixed to a rotary shaft of an object to be detected. The primary yoke forms a magnetic circuit in a ring, and the magnets are configured so that the intensity distribution of the magnetic field is asymmetric with respect to the center of rotation of the rotor. The magnetism detection element is placed in a gap between the auxiliary yokes. This stator is disposed in the inside of the rotor so that an air gap between the rotor and the stator varies gradually in the circumferential direction. Thus, the magnetism detection element is enabled to produce a linear output over a range wider than 180°.
摘要翻译： 角位置检测装置具有包括两个磁体和一个主磁轭的转子，以及包括一对辅助磁轭和磁性检测元件的定子。 转子固定在待检测物体的旋转轴上。 主轭在环中形成磁路，并且磁体被配置为使得磁场的强度分布相对于转子的旋转中心是不对称的。 磁性检测元件被放置在辅助轭之间的间隙中。 该定子配置在转子的内部，使得转子和定子之间的气隙在圆周方向上逐渐变化。 因此，磁检测元件能够在宽于180°的范围内产生线性输出。
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