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    ELECTRIC POWER STEERING APPARATUS
    21.
    发明申请
    ELECTRIC POWER STEERING APPARATUS 审中-公开
    电动转向装置

    公开(公告)号：US20080027609A1

    公开(公告)日：2008-01-31

    申请号：US11782739

    申请日：2007-07-25

    申请人： Yuho Aoki ,  Takeshi Hara ,  Nobuhiro Furushima ,  Hideyuki Kobayashi ,  Shuji Endo

    发明人： Yuho Aoki ,  Takeshi Hara ,  Nobuhiro Furushima ,  Hideyuki Kobayashi ,  Shuji Endo

    IPC分类号： B62D5/04

    CPC分类号： B62D5/0472 ,  B62D5/0463

    摘要： An electric power steering apparatus has a steering mechanism SM having universal joints 4, 6 in a torque transmitting system, a steering toque detecting unit 14, a steering angle detecting unit 18, a torque fluctuation detecting unit 43 for detecting a torque fluctuation due to the crossing angle α in the universal joints 4, 6 on the basis of the steering angle θ detected by the steering angle detecting unit 18 and any one of the steering torque T detected by the steering torque detecting unit, a current command value It and self-aligning torque SAT; and a current command value correcting unit 44 for correcting the current command value on the basis of the torque fluctuation detected by the torque fluctuation detecting unit 43 and the steering angle θ detected by the steering angle detecting unit 18.

    摘要翻译： 电动助力转向装置具有转矩传递系统中具有万向接头4,6的转向机构SM，转向转矩检测部14，转向角检测部18，扭矩波动检测部43， 基于由转向角检测单元18检测到的转向角θ和由转向转矩检测单元检测到的转向转矩T中的任一个，通用接头4,6中的交叉角α， 对位扭矩SAT; 以及电流指令值校正单元44，用于基于由转矩波动检测单元43检测到的转矩波动和由转向角检测单元18检测的转向角θ来校正电流指令值。

    Motor drive apparatus and electric power steering apparatus
    22.
    发明授权
    Motor drive apparatus and electric power steering apparatus 有权
    电机驱动装置和电动助力转向装置

    公开(公告)号：US07187154B2

    公开(公告)日：2007-03-06

    申请号：US11115369

    申请日：2005-04-27

    申请人： CaoMinh Ta ,  Shuji Endo ,  Hideyuki Kobayashi ,  Masahide Saito

    发明人： CaoMinh Ta ,  Shuji Endo ,  Hideyuki Kobayashi ,  Masahide Saito

    IPC分类号： H02P23/00 ,  H02P25/00 ,  H02P27/00

    CPC分类号： B62D5/046

    摘要： The present invention provides a motor drive apparatus capable of calculating an angular velocity and a rotation angle accurately in the entire rotation velocity range of a motor using a cheap Hall sensor having an inferior accuracy without using an expensive resolver having a high accuracy. The present invention includes a first angular velocity calculating means for calculating the angular velocity based on the back-EMF of the motor when it rotates at low speeds and a second angular velocity calculating means for calculating the angular velocity based on a signal from the Hall sensor when it rotates at high speeds. According to the present invention, the angular velocity and rotation angle can be calculated accurately in the entire rotation speed range using the Hall sensor under hybrid usage.

    摘要翻译： 本发明提供一种电动机驱动装置，其能够在不使用具有高精度的昂贵的旋转变压器的情况下，使用具有较差精度的廉价霍尔传感器，在电动机的整个旋转速度范围内精确地计算角速度和旋转角度。 本发明包括：第一角速度计算装置，用于当以低速旋转时计算基于马达的反电动势的角速度;以及第二角速度计算装置，用于根据来自霍尔传感器的信号计算角速度 当它高速旋转时。 根据本发明，可以在混合使用下使用霍尔传感器在整个转速范围内精确地计算角速度和旋转角度。

    Motor drive apparatus and electric power steering apparatus
    23.
    发明申请
    Motor drive apparatus and electric power steering apparatus 有权
    电机驱动装置和电动助力转向装置

    公开(公告)号：US20050242765A1

    公开(公告)日：2005-11-03

    申请号：US11115369

    申请日：2005-04-27

    申请人： CaoMinh Ta ,  Shuji Endo ,  Hideyuki Kobayashi ,  Masahide Saito

    发明人： CaoMinh Ta ,  Shuji Endo ,  Hideyuki Kobayashi ,  Masahide Saito

    IPC分类号： B62D5/04 ,  H02P6/16 ,  H02P6/18 ,  H02P7/06

    CPC分类号： B62D5/046

    摘要： The present invention provides a motor drive apparatus capable of calculating an angular velocity and a rotation angle accurately in the entire rotation velocity range of a motor using a cheap Hall sensor having an inferior accuracy without using an expensive resolver having a high accuracy. The present invention includes a first angular velocity calculating means for calculating the angular velocity based on the back-EMF of the motor when it rotates at low speeds and a second angular velocity calculating means for calculating the angular velocity based on a signal from the Hall sensor when it rotates at high speeds. According to the present invention, the angular velocity and rotation angle can be calculated accurately in the entire rotation speed range using the Hall sensor under hybrid usage.

    摘要翻译： 本发明提供一种电动机驱动装置，其能够在不使用具有高精度的昂贵的旋转变压器的情况下，使用具有较差精度的廉价霍尔传感器，在电动机的整个旋转速度范围内精确地计算角速度和旋转角度。 本发明包括：第一角速度计算装置，用于当以低速旋转时计算基于马达的反电动势的角速度;以及第二角速度计算装置，用于根据来自霍尔传感器的信号计算角速度 当它高速旋转时。 根据本发明，可以在混合使用下使用霍尔传感器在整个转速范围内精确地计算角速度和旋转角度。

    Controller of electric power-steering system
    24.
    发明授权
    Controller of electric power-steering system 失效
    电动助力转向系统控制器

    公开(公告)号：US6013994A

    公开(公告)日：2000-01-11

    申请号：US931619

    申请日：1997-09-16

    申请人： Shuji Endo ,  Hideyuki Kobayashi ,  Kei Chin ,  Yusuke Itakura ,  Hideaki Kawada

    发明人： Shuji Endo ,  Hideyuki Kobayashi ,  Kei Chin ,  Yusuke Itakura ,  Hideaki Kawada

    IPC分类号： B62D5/04 ,  H02P7/14

    CPC分类号： B62D5/0463

    摘要： To provide a controller of an electric power-steering system, capable of improving the steering performance by presuming a motor angular speed .omega. in a range in which the angular speed of a motor is small and moreover very accurately presuming the motor angular speed and thereby, completely showing the functions for compensating the inertia of the motor and controlling the astringency of a vehicle. Because the presumed error of a back electromotive force between a model motor and a motor to be actually mounted is proportional to a motor current, a dead zone of a motor angular speed having a width proportional to a motor current is set to the presumed value of the motor angular speed. When the motor current is small, the width of the dead zone also decreases. Therefore, it is possible to presume an angular speed .omega. even in a region where the motor angular speed is small. Moreover, a motor angular speed is presumed by defining impedance models of motor driving systems in an intermittent mode and a continuous mode.

    摘要翻译： 为了提供一种电动助力转向系统的控制器，其能够通过在电动机的角速度小的范围内假定电动机角速度ω而改善转向性能，并且还非常准确地假设电动机的角速度， 完全显示了补偿电机惯性和控制车辆涩味的功能。 由于模型电动机和实际安装的电动机之间的反电动势的推测误差与电动机电流成比例，所以将具有与电动机电流成比例的宽度的电动机角速度的死区设定为 电机角速度。 当电动机电流小时，死区的宽度也减小。 因此，即使在电动机角速度小的区域中也可以设定角速度ω。 此外，通过以间歇模式和连续模式定义电机驱动系统的阻抗模型来推定电机角速度。

    Control unit for electric power steering apparatus
    25.
    发明授权
    Control unit for electric power steering apparatus 有权
    电动助力转向装置控制单元

    公开(公告)号：US07394214B2

    公开(公告)日：2008-07-01

    申请号：US10579771

    申请日：2004-11-11

    申请人： Shuji Endo ,  Yuho Aoki

    发明人： Shuji Endo ,  Yuho Aoki

    IPC分类号： H02P7/00

    CPC分类号： B62D5/046

    摘要： In order to solve a problem that a motor generates a noise so as to deteriorate an environment in a vehicle if a field weakening control is executed to the motor of a electric power steering apparatus, in the case that a vehicle speed is high, the same field weakening control as the conventional one is applied to the motor because a noise generated due to a friction between a tire and a road surface and a wind noise of a vehicle body are large, and in the case that the vehicle speed is low, the field weakening control is weakly applied in comparison with the conventional one because the noise generated by the motor is felt relatively largely. Accordingly, the field weakening control can be executed in response to the vehicle speed in such a manner as to make the motor noise smaller.

    摘要翻译： 为了解决如果对电动助力转向装置的电动机进行磁场削弱控制，则电动机产生噪声从而恶化车辆的环境的问题，在车速高的情况下，相同 因为由于轮胎和路面之间的摩擦而产生的噪音和车体的风噪声，因此将常规的场强弱化控制应用于电动机，并且在车速低的情况下， 与现有技术相比，弱磁控制较弱，因为电动机产生的噪音相对较大。 因此，可以以使得电机噪声更小的方式响应于车速来执行磁场弱化控制。

    Control Unit for Electric Power Steering Apparatus
    26.
    发明申请
    Control Unit for Electric Power Steering Apparatus 有权
    电动转向装置控制单元

    公开(公告)号：US20070225885A1

    公开(公告)日：2007-09-27

    申请号：US11587972

    申请日：2005-04-15

    申请人： Takeshi Hara ,  Shuji Endo

    发明人： Takeshi Hara ,  Shuji Endo

    IPC分类号： G06F19/00

    CPC分类号： B62D5/049

    摘要： It is an object of the present invention to provide a control unit for an electric power steering apparatus for accurately detecting an abnormality of a steering angle sensor without forming the steering angle sensor as a double system or using an expensive position detection sensor. The object is achieved by calculating a relative steering angle by using inexpensive position detection sensors disposed at a motor of the electric power steering apparatus to output binary values and comparing a change amount of an absolute steering angle detected by the steering angle sensor and a change amount of the calculated relative steering angle with each other to thereby detect the abnormality of the steering angle sensor.

    摘要翻译： 本发明的目的是提供一种用于电动助力转向装置的控制单元，用于在不形成作为双重系统的转向角传感器或者使用昂贵的位置检测传感器的情况下，精确地检测转向角传感器的异常。 该目的是通过使用设置在电动助力转向装置的电动机上的便宜的位置检测传感器来计算相对转向角来输出二进制值并将由转向角传感器检测的绝对转向角的变化量与变化量 计算出的相对转向角彼此相对，从而检测转向角传感器的异常。

    Motor power steering system
    29.
    发明申请
    Motor power steering system 审中-公开
    电动助力转向系统

    公开(公告)号：US20050230178A1

    公开(公告)日：2005-10-20

    申请号：US10519485

    申请日：2003-04-18

    申请人： Kazuo Chikaraishi ,  Toshiyuki Onizuka ,  Shuji Endo

    发明人： Kazuo Chikaraishi ,  Toshiyuki Onizuka ,  Shuji Endo

    IPC分类号： B62D5/04 ,  B62D15/02 ,  G01L5/22

    CPC分类号： G01L5/221 ,  B62D5/0409 ,  B62D15/0215 ,  Y10T74/19888

    摘要： The present invention relates to a motor-driven power steering apparatus structured such as to apply a steering assist force generated by a motor to a steering system of a motor vehicle or a vehicle in accordance with a rotation force of an electric motor on the basis of a steering torque detected by a torque sensor. Further, the invention relates to a rotation angle sensor for detecting a rotation angle of a steering shaft, a detected portion of the rotation angle sensor is provided within the speed reduction gear, and a detecting portion of the rotation angle sensor is provided in a radial direction of the steering shaft and in an outer side of a bearing in the speed reduction gear.

    摘要翻译： 电动助力转向装置技术领域本发明涉及一种电动机动力转向装置，其特征在于，根据电动机的旋转力，将由电动机产生的转向辅助力施加到机动车辆或车辆的转向系统 由转矩传感器检测的转向转矩。 此外，本发明涉及一种用于检测转向轴的旋转角度的旋转角度传感器，旋转角度传感器的检测部分设置在减速齿轮内，旋转角度传感器的检测部分设置在径向 转向轴的方向和减速齿轮的轴承的外侧。