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1. 发明授权

US06622576B1 Torque sensor having period detection means 有权
标题翻译：具有周期检测装置的扭矩传感器
公开(公告)号：US06622576B1
公开(公告)日：2003-09-23
申请号：US09386166
申请日：1999-08-31
申请人： Jiro Nakano , Ichiro Nagashima , Hisashi Oue , Takatsugu Asano , Takeshi Tsukamoto
发明人： Jiro Nakano , Ichiro Nagashima , Hisashi Oue , Takatsugu Asano , Takeshi Tsukamoto
IPC分类号： G01L302
CPC分类号： G01L5/221 , B62D6/10 , G01L3/104
摘要： A torque sensor is provided with a coil whose inductance changes in accordance with variation in torque acting on an object. The torque is detected on the basis of the inductance of the coil. Specifically, the torque sensor includes a first oscillation circuit for detecting the inductance of the coil and for oscillating a signal having a period corresponding to the detected inductance. The period of the signal generated by the first oscillation circuit is detected by a period detection section. A torque detection section detects the torque on the basis of the period detected by the period detection section.
摘要翻译：扭矩传感器具有线圈，其线圈根据作用在物体上的扭矩的变化而变化。基于线圈的电感检测转矩。具体地，转矩传感器包括用于检测线圈的电感并振荡具有对应于检测到的电感的周期的信号的第一振荡电路。由第一振荡电路产生的信号的周期由周期检测部检测。扭矩检测部根据由周期检测部检测出的周期来检测转矩。

2. 发明授权

US07391209B2 Rotational position sensor, compound rotational position sensor and motor operated power steering device 有权
标题翻译：旋转位置传感器，复合旋转位置传感器和电动机动力转向装置
公开(公告)号：US07391209B2
公开(公告)日：2008-06-24
申请号：US11683561
申请日：2007-03-08
申请人： Takatsugu Asano
发明人： Takatsugu Asano
IPC分类号： G01B7/30
CPC分类号： G01D5/14 , G01D5/2006
摘要： It is an object to provide a new rotational position sensor, compound rotational position sensor and motor operated power steering device capable of detecting the rotational position of a rotation detection shaft of which a steering shaft is representative. According to a compound rotational position sensor of the present invention, the number of times a steering shaft has rotated from a reference position is identified by a rotational position sensor and the angle of rotation for one turn of the steering shaft is identified by an encoder. Furthermore, the current angle of rotation of the steering shaft may be specified as an absolute angle of rotation from the reference position based on these two pieces of rotational position information. Furthermore, since a magnetic circuit that is closed by the steering shaft and the base part is formed, the efficiency of the electromagnetic induction is improved, and the electric power consumed can be controlled.
摘要翻译：本发明的目的是提供一种能够检测转向轴代表的旋转检测轴的旋转位置的新的旋转位置传感器，复合旋转位置传感器和电动机动力转向装置。根据本发明的复合旋转位置传感器，通过旋转位置传感器识别转向轴从基准位置旋转的次数，并且通过编码器识别转向轴的一圈的旋转角度。此外，转向轴的当前旋转角度可以基于这两个旋转位置信息被指定为与基准位置的绝对旋转角度。此外，由于形成了由转向轴和基部封闭的磁路，因此提高了电磁感应的效率，并且能够控制消耗的电力。

3. 发明申请

US20070216403A1 ROTATIONAL POSITION SENSOR, COMPOUND ROTATIONAL POSITION SENSOR AND MOTOR OPERATED POWER STEERING DEVICE 有权
标题翻译：旋转位置传感器，复合旋转位置传感器和电动机动力转向装置
公开(公告)号：US20070216403A1
公开(公告)日：2007-09-20
申请号：US11683561
申请日：2007-03-08
申请人： Takatsugu Asano
发明人： Takatsugu Asano
IPC分类号： G01B7/30
CPC分类号： G01D5/14 , G01D5/2006
摘要： It is an object to provide a new rotational position sensor, compound rotational position sensor and motor operated power steering device capable of detecting the rotational position of a rotation detection shaft of which a steering shaft is representative. According to a compound rotational position sensor of the present invention, the number of times a steering shaft has rotated from a reference position is identified by a rotational position sensor and the angle of rotation for one turn of the steering shaft is identified by an encoder. Furthermore, the current angle of rotation of the steering shaft may be specified as an absolute angle of rotation from the reference position based on these two pieces of rotational position information. Furthermore, since a magnetic circuit that is closed by the steering shaft and the base part is formed, the efficiency of the electromagnetic induction is improved, and the electric power consumed can be controlled.
摘要翻译：本发明的目的是提供一种能够检测转向轴代表的旋转检测轴的旋转位置的新的旋转位置传感器，复合旋转位置传感器和电动机动力转向装置。根据本发明的复合旋转位置传感器，通过旋转位置传感器识别转向轴从基准位置旋转的次数，并且通过编码器识别转向轴的一圈的旋转角度。此外，转向轴的当前旋转角度可以基于这两个旋转位置信息被指定为与基准位置的绝对旋转角度。此外，由于形成了由转向轴和基部封闭的磁路，因此提高了电磁感应的效率，并且能够控制消耗的电力。

4. 发明授权

US07122983B2 Rotating angle detecting apparatus and electric power steering apparatus 有权
标题翻译：旋转角度检测装置和电动助力转向装置
公开(公告)号：US07122983B2
公开(公告)日：2006-10-17
申请号：US11106429
申请日：2005-04-15
申请人： Takatsugu Asano , Toshio Kohno
发明人： Takatsugu Asano , Toshio Kohno
IPC分类号： H02P7/00
CPC分类号： G01D5/24466 , G01D5/24457 , H02H3/16
摘要： The invention provides an electric power steering apparatus which can detect a ground fault of an angular resolver without fault. Values of a first resistance (R1), a second resistance (R2), a third resistance (R3) and a fourth resistance (R4) are set such that a difference between a minimum output potential (Vout Min) of a first differential amplifier (OP1) at a time when an angular resolver is not in a ground fault which may be generated on the basis of a dispersion of the first resistance (R1), the second resistance (R2), the third resistance (R3) and the fourth resistance (R4), and a direct-current resistance component (Rdc) of the angular resolver, and a maximum potential (Vout Max) at a time when the angular resolver is in the ground fault becomes equal to or more than a predetermined margin for preventing an erroneous ground fault detection in a CPU (62) side. Accordingly, it is possible to detect the ground fault of the angular resolver on the basis of an output potential (Vout) of the first differential amplifier (OP1) without fault.
摘要翻译：本发明提供一种电动助力转向装置，其可以无故障地检测角解算器的接地故障。将第一电阻（R 1），第二电阻（R 2），第三电阻（R 3）和第四电阻（R 4）的值设定为使得第一差分放大器（OP 1），当角度分解器不处于基于第一电阻（R 1），第二电阻（R 2），第三电阻（R 2），第二电阻（R 3）和第四电阻（R 4）以及角度旋转变压器的直流电阻分量（Rdc）和角度分解器处于接地故障时的最大电位（Vout Max）变得相等达到或大于预定裕度，以防止CPU（62）侧的错误接地故障检测。因此，可以基于第一差分放大器（OP 1）的输出电位（Vout）而无故障地检测角度旋转变压器的接地故障。

5. 发明申请

US20050237016A1 Rotating angle detecting apparatus and electric power steering apparatus 有权
标题翻译：旋转角度检测装置和电动助力转向装置
公开(公告)号：US20050237016A1
公开(公告)日：2005-10-27
申请号：US11106429
申请日：2005-04-15
申请人： Takatsugu Asano , Toshio Kohno
发明人： Takatsugu Asano , Toshio Kohno
IPC分类号： G01L3/10 , B62D5/04 , B62D6/00 , G01D5/244 , G01D5/245 , H02H3/16 , H02P7/00
CPC分类号： G01D5/24466 , G01D5/24457 , H02H3/16
摘要： The invention provides an electric power steering apparatus which can detect a ground fault of an angular resolver without fault. Values of a first resistance (R1), a second resistance (R2), a third resistance (R3) and a fourth resistance (R4) are set such that a difference between a minimum output potential (Vout Min) of a first differential amplifier (OP1) at a time when an angular resolver is not in a ground fault which may be generated on the basis of a dispersion of the first resistance (R1), the second resistance (R2), the third resistance (R3) and the fourth resistance (R4), and a direct-current resistance component (Rdc) of the angular resolver, and a maximum potential (Vout Max) at a time when the angular resolver is in the ground fault becomes equal to or more than a predetermined margin for preventing an erroneous ground fault detection in a CPU (62) side. Accordingly, it is possible to detect the ground fault of the angular resolver on the basis of an output potential (Vout) of the first differential amplifier (OP1) without fault.
摘要翻译：本发明提供一种电动助力转向装置，其可以无故障地检测角解算器的接地故障。将第一电阻（R 1），第二电阻（R 2），第三电阻（R 3）和第四电阻（R 4）的值设定为使得第一差分放大器（OP 1），当角度分解器不处于基于第一电阻（R 1），第二电阻（R 2），第三电阻（R 2），第二电阻（R 3）和第四电阻（R 4）以及角度旋转变压器的直流电阻分量（Rdc）和角度分解器处于接地故障时的最大电位（Vout Max）变得相等达到或大于预定裕度，以防止CPU（62）侧的错误接地故障检测。因此，可以基于第一差分放大器（OP 1）的输出电位（Vout）而无故障地检测角度旋转变压器的接地故障。

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