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1. 发明授权

US08596408B2 Torque sensor, torque detector, and electric power steering device 有权
标题翻译：扭矩传感器，转矩检测器和电动助力转向装置
公开(公告)号：US08596408B2
公开(公告)日：2013-12-03
申请号：US13323114
申请日：2011-12-12
申请人： Nobuhiko Uryu
发明人： Nobuhiko Uryu
IPC分类号： B62D5/04 , G01L3/10
CPC分类号： B62D5/0487 , B62D6/10 , G01L25/003
摘要： An electric power steering device includes a torque detector that includes a torque sensor and a control unit. When abnormality has not occurred in a torque signal, an output section in the torque sensor transmits a normal signal that is a value based on the torque signal and is between a second lower limit that is greater than a first lower limit and a second upper limit that is less than a first upper limit. When abnormality has occurred in the torque signal, the output section transmits a first fault notification signal that is a value between the first and second lower limits or a second fault notification signal that is a value between the first and second upper limits. The control unit identifies a fault and calculates an amount of assist for reducing steering torque based on a signal transmitted from the output section.
摘要翻译：电动助力转向装置包括扭矩检测器，其包括转矩传感器和控制单元。当转矩信号中没有发生异常时，转矩传感器的输出部发送作为基于转矩信号的值的正常信号，并且处于大于第一下限的第二下限和第二上限之间这小于第一个上限。当扭矩信号发生异常时，输出部分发送作为第一和第二下限之间的值的第一故障通知信号或作为第一和第二上限之间的值的第二故障通知信号。控制单元识别故障，并且基于从输出部发送的信号计算用于减小转向转矩的辅助量。

2. 发明申请

US20120194109A1 POWER CONVERSION DEVICE 有权
标题翻译：电源转换器件
公开(公告)号：US20120194109A1
公开(公告)日：2012-08-02
申请号：US13357843
申请日：2012-01-25
申请人： Nobuhiko Uryu , Takashi Suzuki
发明人： Nobuhiko Uryu , Takashi Suzuki
IPC分类号： H02P6/08
CPC分类号： B62D5/046 , B62D5/0403
摘要： A power conversion device includes a first inverter circuit and a second inverter circuit, a capacitor, and a microcomputer. The microcomputer switches a control operation, according to the steering state of a steering wheel, between a first state where a first duty center value is shifted to be lower than an output center value and a second duty center value is shifted to be higher than the output center value, and a second state where the first duty center value is shifted to be higher than the output center value and the second duty center value is shifted to be lower than the output center value. This can reduce a difference in heat loss between FETs while reducing the ripple current of the capacitor.
摘要翻译：电力转换装置包括第一逆变器电路和第二逆变器电路，电容器和微型计算机。微型计算机根据方向盘的转向状态在第一占空中心值偏移到低于输出中心值的第一状态和第二占空中心值之间切换控制操作，使其高于输出中心值以及第一占空中心值偏移到高于输出中心值，第二占空中心值偏移到低于输出中心值的第二状态。这可以减少FET之间的热损失差异，同时减小电容器的纹波电流。

3. 发明申请

US20110156629A1 ELECTRIC POWER STEERING DEVICE 有权
标题翻译：电动转向装置
公开(公告)号：US20110156629A1
公开(公告)日：2011-06-30
申请号：US12977449
申请日：2010-12-23
申请人： Takafumi SATOU , Nobuhiko URYU , Yasuhiko MUKAI
发明人： Takafumi SATOU , Nobuhiko URYU , Yasuhiko MUKAI
IPC分类号： H02H3/04 , H02H7/08
CPC分类号： B62D5/0487 , B62D5/0484
摘要： An electric power steering device includes: an electric power source for supplying first current; a controller for setting a current instruction value; multiple electric power converters for converting the first current to second current corresponding to the current instruction value; multiple pairs of windings for generating a driving force of a motor; and a failure detection element for detecting failure of the electric power converters and the windings. The controller reduces the current instruction value to be equal to or smaller than a predetermined instruction value of a normal operation when the failure detection element detects the failure. The controller controls the electric power converter in a normal state to supply the second current to a corresponding winding.
摘要翻译：电动助力转向装置包括：用于提供第一电流的电源; 用于设置当前指令值的控制器; 多个电力转换器，用于将第一电流转换为对应于当前指令值的第二电流; 用于产生电动机的驱动力的多对绕组; 以及用于检测电力转换器和绕组的故障的故障检测元件。当故障检测元件检测到故障时，控制器将当前指令值减小到等于或小于正常操作的预定指令值。控制器将电力转换器控制在正常状态，以将第二电流提供给相应的绕组。

4. 发明授权

US07792619B2 Electrically driven power steering system for vehicle 有权
标题翻译：车用电动助力转向系统
公开(公告)号：US07792619B2
公开(公告)日：2010-09-07
申请号：US11052080
申请日：2005-02-08
申请人： Nobuhiko Uryu
发明人： Nobuhiko Uryu
IPC分类号： B60L9/00 , B62D6/00 , B62D5/06
CPC分类号： B62D5/0484 , B62D5/046
摘要： An electrically driven power steering system for a vehicle comprises a steering sensor for detecting a steering operation of a steering wheel and a power steering control unit, which receives a command signal from a vehicle movement total control unit, calculates a target steering assist torque from a steering signal from the steering sensor and the command signal and drives a steering assist electric motor in accordance with the above calculated target steering assist torque. The power steering control unit further calculates a feasible torque to be generated at the steering assist electric motor, and drives the steering assist electric motor at the feasible torque, when the feasible torque is lower than the target steering assist torque, namely when a driving current to the electric motor should be limited due to an increased temperature of the electric motor and so on.
摘要翻译：用于车辆的电驱动动力转向系统包括用于检测方向盘的转向操作的转向传感器和从车辆移动总控制单元接收命令信号的动力转向控制单元，从一个车辆运动总控制单元计算目标转向辅助转矩来自转向传感器的转向信号和指令信号，并根据上述计算的目标转向辅助转矩驱动转向辅助电动机。动力转向控制单元进一步计算在转向辅助电动机上产生的可行转矩，并且当可行转矩低于目标转向辅助转矩时，即当驱动电流由于电动机的温度升高等原因，对电动机的限制。

5. 发明授权

US6026925A Electrically driven power assisting device 失效
标题翻译：电动助力装置
公开(公告)号：US6026925A
公开(公告)日：2000-02-22
申请号：US64172
申请日：1998-04-22
申请人： Yasuhiro Nagao , Tsutomu Shiga , Nobuhiko Uryu , Yuuji Hashiba , Toshitaka Tanahashi
发明人： Yasuhiro Nagao , Tsutomu Shiga , Nobuhiko Uryu , Yuuji Hashiba , Toshitaka Tanahashi
IPC分类号： B62D5/04
CPC分类号： B62D5/043 , B62D5/0478
摘要： In a vehicle power steering device, a motor is turned on to rotate in one direction whether a steering wheel is turned clockwise or counterclockwise. A switching mechanism is interposed between a motor armature shaft and an output shaft to change directions of the output shaft rotation relative to the armature shaft rotation in response to turning direction of the steering. The switching mechanism may include electrically controlled coupling/releasing members or mechanically controlled rotation reversing and coupling mechanisms.
摘要翻译：在车辆动力转向装置中，无论方向盘是顺时针还是逆时针方向转动，马达都被打开以在一个方向上旋转。切换机构夹在电机电枢轴和输出轴之间，以响应于转向的转动方向改变输出轴相对于电枢轴旋转的旋转方向。切换机构可以包括电控制的联接/释放构件或机械控制的旋转反向和联接机构。

6. 发明授权

US08949068B2 Rotation angle detection device and electric power steering apparatus using same 有权
标题翻译：旋转角度检测装置及使用其的电动助力转向装置
公开(公告)号：US08949068B2
公开(公告)日：2015-02-03
申请号：US13287341
申请日：2011-11-02
申请人： Takafumi Satou , Nobuhiko Uryu
发明人： Takafumi Satou , Nobuhiko Uryu
IPC分类号： G01D5/244
CPC分类号： G01D5/24457
摘要： A rotation angle detection device uses a control unit to acquire output signals Vx1, Vx2, Vy1, Vy2 that are from four half-bridges, from the four half-bridges. The control unit calculates a rotation angle θ of a detection target based on the acquired output signals Vx1, Vx2, Vy1, Vy2. The control unit checks whether a mean value fixation abnormality is caused to any one of the four output signals Vx1, Vx2, Vy1, Vy2, based on calculation values C1 or C4 that are derived/yielded from the four output signals Vx1, Vx2, Vy1, Vy2. The mean value fixation abnormality caused to the output signals Vx1, Vx2, Vy1, Vy2 that yielded the calculation values C1 and C4 is appropriately determined.
摘要翻译：旋转角度检测装置使用控制单元从四个半桥获取来自四个半桥的输出信号Vx1，Vx2，Vy1，Vy2。控制单元计算旋转角度＆amp; 基于所获取的输出信号Vx1，Vx2，Vy1，Vy2检测目标。控制单元基于从四个输出信号Vx1，Vx2，Vy1导出/生成的计算值C1或C4，检查是否对四个输出信号Vx1，Vx2，Vy1，Vy2中的任何一个产生平均值固定异常，Vy2。适当确定产生计算值C1和C4的输出信号Vx1，Vx2，Vy1，Vy2的平均值固定异常。

7. 发明授权

US08659260B2 Motor drive apparatus and electric power steering apparatus using the same 有权
标题翻译：电机驱动装置及使用其的电动助力转向装置
公开(公告)号：US08659260B2
公开(公告)日：2014-02-25
申请号：US13020224
申请日：2011-02-03
申请人： Yasuhiko Mukai , Nobuhiko Uryu
发明人： Yasuhiko Mukai , Nobuhiko Uryu
IPC分类号： H02P27/04
CPC分类号： B62D5/0487 , B62D5/0403
摘要： A motor drive apparatus has a plurality of motor drive parts and a control unit. The control unit performs first and second failure detection processing for the motor drive parts before starting to drive the motor. If the first motor drive part is determined to have failure by the first failure detection processing, a first power supply relay for the first motor drive part is turned off and the second failure detection processing for the first motor drive part is inhibited. If the second motor drive part is determined to have no failure by the first failure detection processing and then by the second failure detection processing, the motor is started to operate.
摘要翻译：电动机驱动装置具有多个电动机驱动部和控制部。控制单元在开始驱动电动机之前对电动机驱动部进行第一和第二故障检测处理。如果通过第一故障检测处理确定第一电动机驱动部件发生故障，则关闭用于第一电动机驱动部件的第一电力继电器，并且禁止第一电动机驱动部件的第二故障检测处理。如果通过第一故障检测处理确定第二电动机驱动部件没有故障，然后通过第二故障检测处理，则马达开始运行。

8. 发明授权

US08659253B2 Electric power steering device 有权
标题翻译：电动助力转向装置
公开(公告)号：US08659253B2
公开(公告)日：2014-02-25
申请号：US12977449
申请日：2010-12-23
申请人： Takafumi Satou , Nobuhiko Uryu , Yasuhiko Mukai
发明人： Takafumi Satou , Nobuhiko Uryu , Yasuhiko Mukai
IPC分类号： G05B5/00 , H02H7/08 , H02P1/04
CPC分类号： B62D5/0487 , B62D5/0484
摘要： An electric power steering device includes: an electric power source for supplying first current; a controller for setting a current instruction value; multiple electric power converters for converting the first current to second current corresponding to the current instruction value; multiple pairs of windings for generating a driving force of a motor; and a failure detection element for detecting failure of the electric power converters and the windings. The controller reduces the current instruction value to be equal to or smaller than a predetermined instruction value of a normal operation when the failure detection element detects the failure. The controller controls the electric power converter in a normal state to supply the second current to a corresponding winding.
摘要翻译：电动助力转向装置包括：用于提供第一电流的电源; 用于设置当前指令值的控制器; 多个电力转换器，用于将第一电流转换为对应于当前指令值的第二电流; 用于产生电动机的驱动力的多对绕组; 以及用于检测电力转换器和绕组的故障的故障检测元件。当故障检测元件检测到故障时，控制器将当前指令值减小到等于或小于正常操作的预定指令值。控制器将电力转换器控制在正常状态，以将第二电流提供给相应的绕组。

9. 发明授权

US08528689B2 Motor drive apparatus and method, and electric power steering system using the same 有权
标题翻译：电机驱动装置和方法，以及使用该方法的电动助力转向系统
公开(公告)号：US08528689B2
公开(公告)日：2013-09-10
申请号：US13134986
申请日：2011-06-22
申请人： Nobuhiko Uryu
发明人： Nobuhiko Uryu
IPC分类号： B62D5/04 , H02P6/12
CPC分类号： B62D5/0484 , B62D5/0487
摘要： When an inverter or a coil set of one system fails in a motor drive apparatus having two power supply systems, a power supply relay of a failing system is turned off. In this case, while a travel speed detection value is less than a predetermined threshold value, current supply to a motor by the other system operating normally is stopped to thereby stop driving of the motor and generate no steering assist torque. Thus, a driver will be caused to surely notice occurrence of failure.
摘要翻译：当具有两个电源系统的电机驱动装置中的一个系统的逆变器或线圈组故障时，故障系统的电源继电器被断开。在这种情况下，当行驶速度检测值小于预定阈值时，停止通过其他系统正常运行的电动机的电流供给，从而停止电动机的驱动并且不产生转向辅助转矩。因此，会引起司机确定发生故障。

10. 发明授权

US08272473B2 Active steering control system 有权
标题翻译：主动转向控制系统
公开(公告)号：US08272473B2
公开(公告)日：2012-09-25
申请号：US12835054
申请日：2010-07-13
申请人： Masashi Hori , Nobuhiko Uryu
发明人： Masashi Hori , Nobuhiko Uryu
IPC分类号： B62D5/04
CPC分类号： B62D5/008 , B62D5/0409 , B62D6/10
摘要： An input gear rotates integrally with an input shaft, and an output gear rotates integrally with an output shaft. Pinion gears are rotatably supported by pinion gear shaft members, respectively, and are meshed with both of the input gear and the output gear. An inner end part of each pinion gear shaft member is fitted to an inner peripheral wall of a corresponding primary hole of an inner ring member, and an outer end part of each pinion gear shaft member is fitted to an inner peripheral wall of a corresponding secondary hole of an outer ring member.
摘要翻译：输入齿轮与输入轴一体旋转，输出齿轮与输出轴一体旋转。小齿轮分别由小齿轮轴构件可旋转地支撑，并与输入齿轮和输出齿轮啮合。每个小齿轮轴构件的内端部装配到内圈构件的相应主孔的内周壁上，并且每个小齿轮轴构件的外端部被装配到相应次级的内周壁外圈构件的孔。

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