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1. 发明公开

EP2420810A4 TORQUE SENSOR 有权
标题翻译： DREHMOMENTSENSOR
公开(公告)号：EP2420810A4
公开(公告)日：2014-08-27
申请号：EP10764540
申请日：2010-04-16
申请人： AMITEQ CO LTD
发明人： GOTO ATSUTOSHI , YUASA YASUHIRO , SAKAMOTO HIROSHI , GOTO DAISUKE
IPC分类号： G01L3/10 , B62D5/04 , G01L5/22
CPC分类号： B62D6/10 , B62D5/049 , G01L3/105 , G01L25/003

2. 发明公开

EP2420810A1 TORQUE SENSOR 有权
标题翻译：扭矩传感器
公开(公告)号：EP2420810A1
公开(公告)日：2012-02-22
申请号：EP10764540.0
申请日：2010-04-16
申请人： Amiteq Co., Ltd.
发明人： GOTO, Atsutoshi , YUASA, Yasuhiro , SAKAMOTO, Hiroshi , GOTO, Daisuke
IPC分类号： G01L3/10 , B62D5/04
CPC分类号： B62D6/10 , B62D5/049 , G01L3/105 , G01L25/003
摘要： An excitation AC signal biased by a predetermined DC voltage is applied to a coil to allow a DC voltage component in a coil output signal to contain failure information about disconnection, partial disconnection, or the like of the coil. The DC voltage component contained in the coil output signal is detected, and the detected DC voltage is provided as an offset voltage for a failure diagnosis. Further, to check a peak level of the excitation AC voltage, a DC voltage corresponding to the peak level may be contained in the offset voltage. A differential amplifier circuit for obtaining a difference between a coil detection output AC voltage component and a reference AC voltage component outputs an obtained differential signal offset by the offset voltage. Accordingly, the differential signal containing the offset voltage as the failure information is transmitted to a circuit for torque measurement as a torque detection signal via a single output line. The circuit for torque measurement provides the torque detection data based on the transmitted differential signal and at the same time extracts the offset voltage to use it for the failure diagnosis.
摘要翻译：由预定的直流电压偏置的激励交流信号被施加到线圈，以允许线圈输出信号中的直流电压分量包含关于线圈的断开，部分断开等的故障信息。包含在线圈输出信号中的DC电压分量被检测，并且检测到的DC电压被提供作为用于故障诊断的偏移电压。此外，为了检查激励AC电压的峰值电平，可以在偏移电压中包含对应于峰值电平的DC电压。用于获得线圈检测输出AC电压分量与参考AC电压分量之间的差值的差分放大器电路输出所获得的差分信号，所述差分信号偏移了所述偏移电压。因此，包含作为故障信息的偏移电压的差分信号经由单个输出线路被传输到用于转矩测量的电路，作为转矩检测信号。转矩测量电路根据发送的差分信号提供转矩检测数据，同时提取偏置电压以用于故障诊断。

3. 发明授权

EP1659384B1 RELATIVE ROTATION POSITION-DETECTING DEVICE 有权
标题翻译：检测装置的相对位置
公开(公告)号：EP1659384B1
公开(公告)日：2011-11-30
申请号：EP04772337.4
申请日：2004-08-27
申请人： Amiteq Co., Ltd.
发明人： GOTO, Atsutoshi , SAKAMOTO, Kazuya , SAKAMOTO, Hiroshi
IPC分类号： G01L3/10 , B62D5/06 , B62D5/04
CPC分类号： G01L3/105 , B62D6/10 , G01L3/104 , G01L3/109
摘要： A first shaft (1) and a second shaft (2) are twistably (relatively rotatably) connected via a torsion bar (3), and a first magnetic body section (10) and a second magnetic body section (20) are arranged so as to be rotatable in conjunction with the rotation of the first and the second shaft (1, 2). The first and the second magnetic body section form at least two ring-shaped variable magnetic bonding boundary sections opposed to each other with a gap in between. Magnetic bonding at each boundary section varies according to variation in relative rotation positions of both shafts, and phases of the variation in the magnetic bonding are displaced between the boundary sections. A coil section (30) has magnetic bonding-detecting coils (L1-L4) provided so as to correspond to each boundary section. The hollow-cylindrical first and second magnetic body sections have magnetic teeth (1a-1d, 2a-2d) arranged with unequal intervals along the circumferential direction, and axial lengths of teeth are different for each group corresponding to each of the boundary sections.

4. 发明公开

EP1898185A1 POSITION SENSOR 有权
标题翻译：位置传感器
公开(公告)号：EP1898185A1
公开(公告)日：2008-03-12
申请号：EP06767253.5
申请日：2006-06-23
申请人： Amiteq Co., Ltd.
发明人： GOTO, Atsutoshi
IPC分类号： G01D5/245
CPC分类号： G01D5/2013 , G01D5/2216 , H02K11/225 , H02K24/00
摘要： A plurality of layers of flat coils (L41 - L46) are stacked and connected in series with each other to form a single coil pole (L4), and the coil pole is energized by an A.C. signal. Magnetism responsive member, provided to be opposed to the coil pole in a non-contact manner, is displaced relative to the coil pole, so that correspondency, to the coil section, of the magnetism-responsive member varies in response to variation in the relative position and thus impedance variation occurs in the coil pole. Position detection signal is provided on the basis of an output signal, responsive to the impedance variation, taken out from the coil pole.
摘要翻译：多层扁平线圈（L41-L46）堆叠并彼此串联以形成单个线圈极（L4），并且线圈极由A.C.信号激励。设置成与线圈极非接触地相对的磁响应构件相对于线圈极移位，使得响应于磁性响应构件的线圈部的相对于相对于线圈极的相对变化而变化位置，从而在线圈极发生阻抗变化。根据输出信号提供位置检测信号，响应从线圈极取出的阻抗变化。

5. 发明公开

EP1362764A3 Control unit for power steering apparatus and steering-wheel-angle correcting system 有权
标题翻译：用于动力转向和校正系统用于方向盘角控制单元
公开(公告)号：EP1362764A3
公开(公告)日：2008-02-13
申请号：EP03010795.7
申请日：2003-05-14
申请人： Eaton Corporation , Amiteq Co., Ltd.
发明人： Goto, Atsutoshi , Sakamoto, Hiroshi , Yuasa, Yasuhiro , Tanaka, Shuichi , Muraoka, Shigeru , Tanaka, Masakuni
IPC分类号： B62D5/06 , B62D6/00
CPC分类号： B62D5/09
摘要： In a control unit for use with a power steering apparatus, there are provided and integrated into a single body, a main operating fluid feed device for supplying the hydraulic cylinder (2) with an amount of oil corresponding to the amount of rotation of the steering wheel (H), an auxiliary operating fluid feed device for supplying a correcting oil for adjusting drive of said hydraulic cylinder (2) according to control signal, and a steering wheel angle sensor (12) disposed around the rotating shaft of the steering wheel connected to said main operating fluid feed device, to detect steering wheel angle corresponding to the rotating position of said steering wheel.

6. 发明公开

EP3372952A1 DISPLACEMENT DETECTION DEVICE 有权
公开(公告)号：EP3372952A1
公开(公告)日：2018-09-12
申请号：EP16862170.4
申请日：2016-11-02
申请人： Amiteq Co., Ltd.
发明人： GOTO, Daisuke , AKATSU, Nobuyuki , SAKAMOTO, Kazuya
IPC分类号： G01B7/00 , G01L5/00
CPC分类号： G01D5/2006 , G01B7/023 , G01D5/2026 , G01L5/00
摘要： [Problem] To provide a construction capable of promoting miniaturization.
[Solution] The present invention is provided with: a coil (11); a magnetism-responsive member (12) disposed so as to be displaced relative to the coil according to a position of a detection object; and a self-oscillation circuit (13) that incorporates the coil therein as an oscillation element so that an oscillation frequency varies with an inductance variation of the coil responsive to an displacement of the magnetism-responsive member relative to the coil. An arithmetic section (14) generates a measured value responsive to the oscillation frequency on the basis of an oscillation output signal of the self-oscillation circuit, calculates velocity data by differentiating successive measured values, and calculates displacement data by integrating the velocity data. An offset error component caused by the peripheral temperature or a mechanical attachment position of the detection device can be automatically cancelled or reduced by the differential operation for calculating the velocity data, and precise displacement detection can be realized.

7. 发明授权

EP3009804B1 INDUCTIVE POSITION-DETECTING DEVICE 有权
公开(公告)号：EP3009804B1
公开(公告)日：2018-08-01
申请号：EP14811621.3
申请日：2014-06-13
申请人： Amiteq Co., Ltd.
发明人： GOTO, Daisuke , SAKAMOTO, Kazuya , SAKAMOTO, Hiroshi , YUASA, Yasuhiro
IPC分类号： G01D5/20 , G01B7/00 , G01D5/22 , G01D5/243 , G01R27/26
CPC分类号： G01D5/2258 , G01B7/003 , G01D5/2216 , G01D5/2275 , G01D5/2291 , G01D5/243 , G01R27/2611
摘要： A coil section (10) includes a primary coil (11) which is magnetically excitable by an AC signal, and secondary coils (12 - 15) which are provided so as to generate an inductive output in response to excitation of the primary coil. A self-oscillation circuit (20), including an inductance element and a capacitor, has incorporated therein the primary coil (11) as the inductance element for self-oscillation. A target section (1) is provided in such a manner that its relative position to the coil section (10) varies according to a position of a target of detection, and the target section includes a magnetically responsive member disposed so that inductance of the secondary coils (12 - 15) is varied according to the relative position. Amplitude levels of the output signals of the secondary coils (12 - 15) are extracted, and position data of the position of the target of detection is obtained on the basis of these amplitude levels.

8. 发明授权

EP1054238B1 Method and apparatus for detecting position using phase-shifted signals 有权
标题翻译：使用相移信号检测位置的方法和设备
公开(公告)号：EP1054238B1
公开(公告)日：2017-07-12
申请号：EP00110444.7
申请日：2000-05-16
申请人： Amiteq Co., Ltd.
发明人： Goto, Atsutoshi , Sakamoto, Kazuya , Akatsu, Nobuyuki
IPC分类号： G01D5/20 , G01D5/243
CPC分类号： G01D5/204

9. 发明授权

EP1898185B1 POSITION SENSOR 有权
标题翻译：位置传感器
公开(公告)号：EP1898185B1
公开(公告)日：2016-11-09
申请号：EP06767253.5
申请日：2006-06-23
申请人： Amiteq Co., Ltd.
发明人： GOTO, Atsutoshi
IPC分类号： G01D5/20 , G01D5/22 , H02K24/00 , H02K11/00
CPC分类号： G01D5/2013 , G01D5/2216 , H02K11/225 , H02K24/00

10. 发明公开

EP1821089A4 RELATIVE ROTATIONAL POSITION DETECTOR 有权
标题翻译：相对位置检测器
公开(公告)号：EP1821089A4
公开(公告)日：2007-12-12
申请号：EP04822623
申请日：2004-11-19
申请人： AMITEQ CO LTD
发明人： GOTO ATSUTOSHI , SAKAMOTO KAZUYA , SAKAMOTO HIROSHI
IPC分类号： G01L3/10 , G01B7/30
CPC分类号： G01L3/109 , B62D6/10 , G01D5/145 , G01D5/2046 , G01L3/10
摘要： A first sensor detects a rotational position of a first shaft in a noncontact fashion and generates a first output signal by phase-shifting a reference A.C. signal in accordance with the detected rotational position of the first shaft. A second sensor detects a rotational position of a second shaft in a noncontact fashion and generates a second output signal by phase-shifting the reference A.C. signal in accordance with the detected rotational position of the second shaft. First and second timing signals corresponding to phase shift amounts of the first and second output signals are output via respective output lines. Relative rotational position detection data, representing a rotational difference or amount of torsion between the two shafts, appears in a time difference between the first and second timing signals. A PWM signal, having a pulse width corresponding to a time difference between the first and second timing signals, may be output.

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