公开(公告)号：US06779624B2

公开(公告)日：2004-08-24

申请号：US10434638

申请日：2003-05-12

申请人： Atsutoshi Goto ,  Hiroshi Sakamoto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Shigeru Muraoka ,  Masakuni Tanaka

发明人： Atsutoshi Goto ,  Hiroshi Sakamoto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Shigeru Muraoka ,  Masakuni Tanaka

IPC分类号： B62D506

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 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 according to control signal, and a steering wheel angle sensor 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.

公开(公告)号：US06552666B1

公开(公告)日：2003-04-22

申请号：US09479605

申请日：2000-01-06

申请人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

发明人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

IPC分类号： G08B2100

CPC分类号： G01B7/02 ,  G01D5/2216 ,  H02H1/0061 ,  H04L12/5692 ,  H04L69/08

摘要： Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a position sensor such as a resolver. By performing an addition or subtraction between a signal derived by shifting the electric phase of one of the received A.C. output signals by a predetermined angle, and the other received signal, two electric A.C. signals (sin(&ohgr;t±d+&thgr;), sin(&ohgr;t±d−&thgr;)) are electrically synthesized which have electric phase angles (&thgr;) corresponding to the position-to-be-detected and are phase-shifted in opposite directions. “±d” here represents phase variation error caused by factors, other than the position-to-be-detected, such as temperature change. In the synthesized two signals, the phase variation errors (±d) appear in the same direction, while the phase differences (&thgr;) corresponding to the position are shifted in opposite, positive and negative, directions. Thus, by measuring the respective phase shift amounts (±d+&thgr;, ±d−&thgr;) and performing appropriate operation, it is allowed to cancel out or extract the error (±d) so that an accurate phase difference (&thgr;) can be detected. Position detection data indicative of the detected phase difference (&thgr;) is converted into a pulse-width-modulated signal and transmitted in the pulse-width-modulated form.

摘要翻译： 从诸如旋转变压器的位置传感器接收根据与待检测位置彼此不同的两个功能值（正弦和余弦）进行幅度调制的两个交流输出信号。 通过在所接收的AC输出信号之一的电相位移动预定角度而得到的信号与另一个接收信号之间进行加法或减法，将两个电交流信号（sin（ωg±d + theta），sin（ omega±d-theta））电气合成，其具有对应于待检测位置的电相角（t​​heta）并且在相反方向上相移。 这里的“±d”表示除了要检测的位置之外的因素（如温度变化）引起的相位变化误差。 在合成的两个信号中，相位变化误差（±d）出现在相同的方向，而与位置相对应的相位差（θ）以相反的方向正移动。 因此，通过测量各自的相移量（±d +θ，±d-θ）并执行适当的操作，允许抵消或提取误差（±d），使得精确的相位差（θ）可以是 检测到。 指示检测到的相位差（θ）的位置检测数据被转换成脉冲宽度调制信号，并以脉冲宽度调制形式发送。

公开(公告)号：US06885310B2

公开(公告)日：2005-04-26

申请号：US10379269

申请日：2003-03-03

申请人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

发明人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

IPC分类号： G01B7/02 ,  G01D5/22 ,  H02H1/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  G08C19/12 ,  G08C19/06

CPC分类号： G01B7/02 ,  G01D5/2216 ,  H02H1/0061 ,  H04L12/5692 ,  H04L69/08

摘要： Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a position sensor such as a resolver. By performing an addition or subtraction between a signal derived by shifting the electric phase of one of the received A.C. output signals by a predetermined angle, and the other received signal, two electric A.C. signals (sin(ωt±d+θ), sin((ωt±d−θ)) are electrically synthesized which have electric phase angles (θ) corresponding to the position-to-be-detected and are phase-shifted in opposite directions. “±d” here represents phase variation error caused by factors, other than the position-to-be-detected, such as temperature change. In the synthesized two signals, the phase variation errors (±d) appear in the same direction, while the phase differences (θ) corresponding to the position are shifted in opposite, positive and negative, directions. Thus, by measuring the respective phase shift amounts (±d+θ, ±d−θ) and performing appropriate operation, it is allowed to cancel out or extract the error (±d) so that an accurate phase difference (θ) can be detected. Position detection data indicative of the detected phase difference (θ) is converted into a pulse-width-modulated signal and transmitted in the pulse-width-modulated form.

摘要翻译： 从诸如旋转变压器的位置传感器接收根据与待检测位置彼此不同的两个功能值（正弦和余弦）进行幅度调制的两个交流输出信号。 通过在所接收的AC输出信号之一的电相位移动预定角度而得到的信号与另一个接收信号之间进行加法或减法，将两个电交流信号（sin（ωg±d + theta），sin（ （omega±d-θ））电气合成，其具有与待检测位置相对应的电相角（t​​heta），并且在相反方向上相移。“±d”表示由因子引起的相位变化误差 在合成的两个信号中，相位变化误差（±d）出现在相同的方向，而与位置对应的相位差（theta）偏移 因此，通过测量各自的相移量（±d +θ，±d-θ）并执行适当的操作，允许其抵消或提取误差（±d），使得 精确的相位差（theta）可以 被检测。 指示检测到的相位差（θ）的位置检测数据被转换成脉冲宽度调制信号，并以脉冲宽度调制形式发送。

公开(公告)号：US6034624A

公开(公告)日：2000-03-07

申请号：US818974

申请日：1997-03-14

申请人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

发明人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

IPC分类号： G01B7/02 ,  G01D5/22 ,  G08C19/06

CPC分类号： G01B7/02 ,  G01D5/2216

摘要： A winding section includes a primary winding to be excited by a single-phase A.C. signal, and a plurality of secondary windings provided at different locations with respect to a predetermined direction of linear movement. A variable magnetic coupling section includes a plurality of magnetic response members provided in repetition at a predetermined pitch along the direction of linear movement, and allows inductive A.C. output signals, amplitude-modulated in accordance with a varying linear position of an object of detection, to be produced in the individual secondary windings with amplitude function characteristics differing depending on positional differences between the secondary windings. Each of the inductive A.C. output signals produced in the secondary windings varies in its amplitude function in periodic cycles each corresponding to the pitch length of the magnetic response members. The variable magnetic coupling section may include a core section made of a wire, and the magnetic response members in the form of metal pieces provided at the predetermined pitch and secured by caulking to the core section.

摘要翻译： 绕组部分包括由单相交流信号激励的初级绕组，以及设置在相对于线性运动的预定方向的不同位置处的多个次级绕组。 可变磁耦合部分包括沿着线性运动方向以预定间距重复设置的多个磁响应部件，并且允许根据检测对象的变化线性位置进行幅度调制的感应AC输出信号 在具有根据次级绕组之间的位置差异的幅度函数特性的各个次级绕组中产生。 在次级绕组中产生的每个电感式交流输出信号在其振幅函数中以每个对应于磁响应构件的音调长度的周期周期变化。 可变磁耦合部分可以包括由导线制成的芯部分和以预定间距设置的金属片形式的磁响应部件，并且通过铆接固定到芯部。

公开(公告)号：US5903205A

公开(公告)日：1999-05-11

申请号：US693405

申请日：1996-08-07

申请人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto

发明人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuichi Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto

IPC分类号： G01B7/00 ,  G01B7/30 ,  G01D5/20 ,  G01D5/245 ,  H01F21/06

CPC分类号： G01D5/204

摘要： A group of secondary windings are distributively provided on a stator over a predetermined range, and the respective inductance of the secondary windings in the group is set in such a manner to present predetermined inductance distribution. A rotor has an eccentric shape so as to cause variations in magnetic coupling at individual poles of the stator in response to its current rotational position. By combined use of the magnetic coupling variations between primary and secondary windings on the stator and the predetermined inductance distribution of the secondary windings, high-accuracy detection of a rotational position is achieved with a simple structure. A plurality of primary windings may be set so as to present predetermined inductance distribution.

摘要翻译： 一组次级绕组在预定范围内分布地设置在定子上，并且组中的次级绕组的相应电感被设定为呈现预定的电感分布。 转子具有偏心的形状，以便响应于其当前的旋转位置而引起定子各个极的磁耦合的变化。 通过组合使用定子上的初级和次级绕组之间的磁耦合变化和次级绕组的预定电感分布，以简单的结构实现旋转位置的高精度检测。 可以设置多个初级绕组以便呈现预定的电感分布。

公开(公告)号：US20120031202A1

公开(公告)日：2012-02-09

申请号：US13264523

申请日：2010-04-16

申请人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Hiroshi Sakamoto ,  Daisuke Goto

发明人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Hiroshi Sakamoto ,  Daisuke Goto

IPC分类号： G01L3/02

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： 将由预定直流电压偏置的激励AC信号施加到线圈，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。 检测包含在线圈输出信号中的直流电压分量，并且检测到的直流电压被提供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与峰值电平相对应的DC电压。 用于获得线圈检测输出AC电压分量和参考AC电压分量之差的差分放大器电路输出所获得的差分信号偏移量与偏移电压。 因此，将包含作为故障信息的偏移电压的差分信号通过单个输出线传送到用于转矩测量的电路作为转矩检测信号。 用于转矩测量的电路基于发送的差分信号提供转矩检测数据，同时提取偏移电压以用于故障诊断。

公开(公告)号：US5710509A

公开(公告)日：1998-01-20

申请号：US550358

申请日：1995-10-30

申请人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuiti Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

发明人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Shuiti Tanaka ,  Nobuyuki Akatsu ,  Kazuya Sakamoto ,  Hiroshi Sakamoto ,  Akio Yamamoto

IPC分类号： G01B7/00 ,  G01B7/30 ,  G01D5/20 ,  G01D5/245 ,  H03M1/64 ,  G01D5/243

CPC分类号： G01D5/2073 ,  H03M1/645

摘要： Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a position sensor such as a resolver. By performing an addition or subtraction between a signal derived by shifting the electric phase of one of the received A.C. output signals by a predetermined angle, and the other received signal, two electric A.C. signals (sin(.omega.t .+-.d.+-..theta.), sin(.omega.t.+-.d-.theta.)) are electrically synthesized which have electric phase angles (.theta.) corresponding to the position-to-be-detected and are phase-shifted in opposite directions. ".+-.d" here represents phase variation error caused by factors, other than the position-to-be-detected, such as temperature change. In the synthesized two signals, the phase variation errors (.+-.d) appear in the same direction, while the phase differences (.theta.) corresponding to the position are shifted in opposite, positive and negative, directions. Thus, by measuring the respective phase shift amounts (.+-.d.+-..theta., .+-.d-.theta.) and performing appropriate operation, it is allowed to cancel out or extract the error (.+-.d) so that an accurate phase difference (.theta.) can be detected.

摘要翻译： 从诸如解析器的位置传感器接收根据与要检测的位置相对应的彼此不同的两个功能值（正弦和余弦）进行幅度调制的两个交流输出信号。 通过在通过将接收的AC输出信号之一的电相位移位预定角度而得到的信号与另一个接收信号之间执行加法或减法，则两个电AC信号（sin（ω+Δ+/- d +/- theta ），sin（ω-t +/-dθ））被电合成，其具有对应于要被检测的位置的电相角（θ）并且在相反方向上相移。 这里的“+/- d”表示除了要检测的位置之外的因素（如温度变化）引起的相位变化误差。 在合成的两个信号中，相位变化误差（+/- d）出现在相同的方向，而与位置对应的相位差（θ）在相反的正负方向上移动。 因此，通过测量各自的相移量（+/- d +/-θ，+/-dθ）并执行适当的操作，允许其抵消或提取误差（+/- d），使得准确 可以检测相位差（theta）。

公开(公告)号：US08677835B2

公开(公告)日：2014-03-25

申请号：US13264523

申请日：2010-04-16

申请人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Hiroshi Sakamoto ,  Daisuke Goto

发明人： Atsutoshi Goto ,  Yasuhiro Yuasa ,  Hiroshi Sakamoto ,  Daisuke Goto

IPC分类号： G01L3/02

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： 将由预定直流电压偏置的激励AC信号施加到线圈，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。 检测包含在线圈输出信号中的直流电压分量，并且检测到的直流电压被提供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与峰值电平对应的DC电压。 用于获得线圈检测输出AC电压分量和参考AC电压分量之差的差分放大器电路输出所获得的差分信号偏移量与偏移电压。 因此，将包含作为故障信息的偏移电压的差分信号通过单个输出线传送到用于转矩测量的电路作为转矩检测信号。 用于转矩测量的电路基于发送的差分信号提供转矩检测数据，同时提取偏移电压以用于故障诊断。

公开(公告)号：US07309365B2

公开(公告)日：2007-12-18

申请号：US10684481

申请日：2003-10-15

申请人： Yasuhiro Yuasa ,  Akihito Ito ,  Takafumi Ishibashi ,  Kazuhisa Morishita

发明人： Yasuhiro Yuasa ,  Akihito Ito ,  Takafumi Ishibashi ,  Kazuhisa Morishita

IPC分类号： B01D46/00 ,  B01D50/00

CPC分类号： A47L9/2889 ,  A47L9/20 ,  A47L9/2805 ,  A47L9/2821 ,  A47L9/2842 ,  A47L9/2857 ,  Y10S55/02 ,  Y10S55/03 ,  Y10S55/34

摘要： A vacuum cleaner including an electric blower for generating suction air, a collecting unit for collecting dust contained in the suction air, a dust removing unit for removing dust adhered to the collecting unit, and a dust removing stop unit for stopping an operation of the dust removing unit. The dust removing stop unit stops the operation of the dust removing unit in response to a user's selection or an operation mode of the vacuum cleaner, thereby saving a power consumption of the dust removing unit.

摘要翻译： 一种真空吸尘器，包括用于产生吸入空气的电动鼓风机，用于收集吸入空气中的灰尘的收集单元，用于去除附着在收集单元上的灰尘的除尘单元，以及用于停止灰尘操作的除尘停止单元 去除单元。 除尘单元根据用户的选择或真空吸尘器的操作模式来停止除尘单元的操作，从而节省了除尘单元的电力消耗。

公开(公告)号：US07416384B2

公开(公告)日：2008-08-26

申请号：US10664975

申请日：2003-09-22

申请人： Tsuyoshi Tokuda ,  Yoshitaka Murata ,  Yoshitaka Hayamizu ,  Kazuhisa Morishita ,  Yasuhiro Yuasa ,  Norihiro Tsuchiya

发明人： Tsuyoshi Tokuda ,  Yoshitaka Murata ,  Yoshitaka Hayamizu ,  Kazuhisa Morishita ,  Yasuhiro Yuasa ,  Norihiro Tsuchiya

IPC分类号： A47L5/22 ,  A47L9/22

CPC分类号： A47L5/22 ,  F04D29/444 ,  F05D2250/52

摘要： An electric blower includes an electric motor including a stator and a rotor. The impeller is rotated by the electric motor. An air guide having a plurality of guide blades is disposed around the impeller, and a casing encloses the impeller and the air guide. The casing is provided with a number of exhaust openings through which a part of an air stream suctioned by the impeller is discharged, and a circumferential length of each of the exhaust openings is substantially identical to a circumferential distance between outer peripheral ends of adjacent guide blades. Alternatively, the circumferential length of each of the exhaust openings may be less or greater than the circumferential distance between outer peripheral ends of adjacent guide blades.

摘要翻译： 电动鼓风机包括具有定子和转子的电动机。 叶轮由电动机旋转。 具有多个引导叶片的空气引导件设置在叶轮周围，壳体包围叶轮和空气引导件。 壳体设置有多个排气口，通过该排气口排出由叶轮吸入的一部分空气流，并且每个排气口的周向长度基本上与相邻导向叶片的外周端之间的圆周距离相同 。 或者，每个排气口的圆周长度可以小于或大于相邻导向叶片的外周端之间的圆周距离。