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21. 发明申请

US20110011666A1 STEERING CONTROL SYSTEM 有权
标题翻译：转向控制系统
公开(公告)号：US20110011666A1
公开(公告)日：2011-01-20
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 , B62D3/04
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。

22. 发明授权

US07207412B2 Motor-driven power steering system 有权
标题翻译：电动助力转向系统
公开(公告)号：US07207412B2
公开(公告)日：2007-04-24
申请号：US11048758
申请日：2005-02-03
申请人： Nobuhiko Uryu
发明人： Nobuhiko Uryu
IPC分类号： B62D5/04
CPC分类号： B62D5/0481
摘要： A motor-driven power steering system includes a power assisting motor; a motor current sensor, a sample-hold circuit that has sampling section and a holding section, a timing signal generating circuit that generates a timing signal to activate either the sampling section or the holding section and an alarming unit that generates an abnormality signal if the timing signal is not detected for a prescribed period.
摘要翻译：电动助力转向系统包括助力电动机; 电动机电流传感器，具有采样部分和保持部分的采样保持电路，产生定时信号以激活采样部分或保持部分的定时信号产生电路和产生异常信号的报警单元，如果定时信号在规定的时间内没有检测到。

23. 发明授权

US07044264B2 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：US07044264B2
公开(公告)日：2006-05-16
申请号：US11052073
申请日：2005-02-08
申请人： Nobuhiko Uryu
发明人： Nobuhiko Uryu
IPC分类号： B62D5/04
CPC分类号： B62D5/0481 , B62D5/049
摘要： It is an object of the present invention to provide an electrical power steering system for a vehicle, in which an abnormal condition of a motor current detecting device for a motor current is detected with high precision. A power steering control unit calculates a target assist torque based on a steering signal from a steering sensor and calculates a motor driving current based on such target assist torque. The control unit then calculates a difference between a motor current in a normal condition and a detected motor current, so that the difference is used as an offset correction amount. The control unit further calculates an upper and a lower limit of the offset correction amount depending on a detected temperature of the motor current detecting device. The control unit finally determines that the motor current detecting device is not in a normal condition, when the offset amount is not within a range between the upper and lower limits of the offset correction amount.
摘要翻译：本发明的目的是提供一种用于车辆的电动助力转向系统，其中以高精度检测电动机电流的电动机电流检测装置的异常状态。动力转向控制单元基于来自转向传感器的转向信号来计算目标辅助转矩，并基于该目标辅助转矩来计算电动机驱动电流。然后，控制单元计算正常状态下的电动机电流与检测到的电动机电流之间的差，使得该差用作偏移校正量。控制单元还根据电动机电流检测装置的检测温度进一步计算偏移校正量的上限和下限。当偏移量不在偏移校正量的上限和下限之间的范围内时，控制单元最终确定电动机电流检测装置不处于正常状态。

24. 发明授权

US6134490A Power steering device assisted by variable power 有权
标题翻译：动力转向装置由可变动力辅助
公开(公告)号：US6134490A
公开(公告)日：2000-10-17
申请号：US277739
申请日：1999-03-29
申请人： Norihisa Ito , Nobuhiko Uryu , Yasuhiko Sugihara
发明人： Norihisa Ito , Nobuhiko Uryu , Yasuhiko Sugihara
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D113/00 , B62D117/00 , B62D119/00
CPC分类号： B62D5/0463
摘要： Steering of a vehicle is assisted by a motor driven according to a steering signal formulated by a digital computer. The steering signal is formulated so that a high and quick power-assist is obtained when the steering is steep or sharp, while trembling vibrations appearing on a steering wheel due to noise are suppressed when the steering is slow or the steering wheel is stably held. A steering velocity calculated from a steering angle and a steering torque signal detected from a torsional torque of a steering shaft are used to formulate the steering signal. An original steering torque signal is modified by a transfer function having a higher gain and a higher phase advance in a certain frequency range thereof, thereby formulating a final steering signal which controls operation of the power-assist motor.
摘要翻译：车辆的转向由根据由数字计算机制定的转向信号驱动的电动机辅助。转向信号被配置为使得当转向陡峭或锋利时获得高且快速的助力，同时当转向较慢或方向盘稳定地保持时，抑制由于噪音而在方向盘上出现颤抖的振动。使用从转向轴的扭转扭矩检测到的转向角度和转向转矩信号计算的转向速度来制定转向信号。原始转向转矩信号通过在其一定频率范围内具有较高增益和较高相位超前的传递函数进行修改，从而形成控制动力辅助电动机运行的最终转向信号。

25. 发明授权

US5592912A Starter having improved heat radiation 失效
标题翻译：起动机具有改善的散热
公开(公告)号：US5592912A
公开(公告)日：1997-01-14
申请号：US405153
申请日：1995-03-16
申请人： Nobuhiko Uryu , Nobuyuki Hayashi
发明人： Nobuhiko Uryu , Nobuyuki Hayashi
IPC分类号： F02N11/00
CPC分类号： F02N11/00 , Y10T74/132 , Y10T74/137
摘要： In a starter, to improve a heat dissipation performance, an axial length from the end of a starter housing fit into a clutch housing to a starter installation surface of the clutch housing is set to be longer than an axial length from the end of a starter motor not fit into the clutch housing to the starter installation surface. Alternatively, the exposed surface area of the starter housing fit into the clutch housing is set to be larger than the exposed surface area of the portion of the starter housing not fit into the clutch housing and the starter motor. With this configuration, the starter housing can be effectively cooled by whirling air flow in the clutch housing.
摘要翻译：在起动器中，为了提高散热性能，从起动器壳体的端部配合到离合器壳体到离合器壳体的起动器安装表面的轴向长度被设定为比起动器端部的轴向长度电机不能装入离合器壳体到起动器安装面。或者，装配到离合器壳体中的起动机壳体的暴露的表面积被设定为大于起动器壳体的不配合到离合器壳体和起动电动机中的部分的暴露表面积。通过这种构造，可以通过离合器壳体中的旋转气流来有效地冷却起动器壳体。

26. 发明授权

US08798958B2 Rotation angle detection device and electric power steering system 有权
标题翻译：旋转角度检测装置和电动助力转向系统
公开(公告)号：US08798958B2
公开(公告)日：2014-08-05
申请号：US12899967
申请日：2010-10-07
申请人： Takafumi Satou , Takashi Suzuki , Yasuhiko Mukai , Nobuhiko Uryu
发明人： Takafumi Satou , Takashi Suzuki , Yasuhiko Mukai , Nobuhiko Uryu
IPC分类号： G01C9/00 , G01B7/30 , G01D5/14 , B62D5/04 , G01D5/244 , B62D15/02
CPC分类号： B62D15/0235 , B62D5/049 , G01D5/145 , G01D5/24461
摘要： Bridge circuits have half bridges formed of sensor elements, which vary respective impedances in accordance with a rotating magnetic field generated by a rotary object. A control unit acquires output signals produced from intermediate points of the half bridges, and calculates a rotation angle of the rotary object based on the output signals. The control unit determines that the output signal is abnormal, if a calculation value of the output signal calculated based on at least four output signals is outside a predetermined range. The control unit thus determines which one of the output signals has become abnormal due to failure or the like.
摘要翻译：桥式电路具有由传感器元件形成的半桥，其根据由旋转体产生的旋转磁场改变各自的阻抗。控制单元获取从半桥的中间点产生的输出信号，并且基于输出信号计算旋转对象的旋转角度。如果基于至少四个输出信号计算的输出信号的计算值在预定范围之外，则控制单元确定输出信号异常。因此，控制单元确定哪个输出信号由于故障等而变得异常。

27. 发明授权

US08781777B2 Rotation angle detection device and electric power steering system using the same 有权
标题翻译：旋转角度检测装置和电动助力转向系统采用相同的方式
公开(公告)号：US08781777B2
公开(公告)日：2014-07-15
申请号：US13199947
申请日：2011-09-13
申请人： Takafumi Satou , Nobuhiko Uryu
发明人： Takafumi Satou , Nobuhiko Uryu
IPC分类号： G01C17/38 , B62D15/02 , G01D5/244
CPC分类号： B62D15/0235 , G01D5/2449
摘要： A bridge circuit includes a plurality of half-bridges formed of sensor elements, which change impedance in accordance with a rotation angle of a detection target. A control circuit acquires output signals of the half-bridges and calculates a phase correction value for correcting a phase deviation. A memory circuit stores the phase correction value. The control circuit corrects a pre-correction rotation angle by the phase correction value. Since the pre-correction rotation angle is corrected by the phase correction value, a rotation angle of the detection target is detected with high accuracy even if the sensor elements are assembled with some positional deviations.
摘要翻译：桥电路包括由传感器元件形成的多个半桥，其根据检测目标的旋转角度改变阻抗。控制电路获取半桥的输出信号，并计算用于校正相位偏差的相位校正值。存储电路存储相位校正值。控制电路通过相位校正值校正预校正旋转角度。由于通过相位校正值校正预校正旋转角度，即使传感器元件组装有某些位置偏差，也能够高精度地检测检测对象的旋转角度。

28. 发明授权

US08669731B2 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：US08669731B2
公开(公告)日：2014-03-11
申请号：US13134972
申请日：2011-06-22
申请人： Nobuhiko Uryu
发明人： Nobuhiko Uryu
IPC分类号： H02H7/08
CPC分类号： B62D5/0487 , B62D5/0484 , H02H7/08 , H02H7/122 , H02P25/22 , H02P27/08 , H02P2207/076
摘要： When failure of an inverter or a coil set of one system of a motor drive apparatus having two systems, is detected, a power supply relay of the failing system is interrupted. At the same time, a control circuit sets a same maximum current limitation value as set before detection of failure. When an IG switch is in an ON-state and a steering toque detection value exceeds a predetermined threshold value thereafter, a vibration component, which has a predetermined amplitude and frequency, is added to a current command value so that a steering wheel is vibrated in a direction of rotation so that a driver is cautioned to notice the failure surely.
摘要翻译：当检测到具有两个系统的电机驱动装置的一个系统的逆变器或线圈组的故障时，故障系统的电源继电器被中断。同时，控制电路设定与检测到故障之前相同的最大电流限制值。当IG开关处于ON状态并且转向转矩检测值此后超过预定阈值时，将具有预定幅度和频率的振动分量加到电流指令值上，使得方向盘振动旋转方向，以便驾驶员被警告以确定地注意到故障。

29. 发明授权

US08436573B2 Power conversion device 有权
标题翻译：电源转换装置
公开(公告)号：US08436573B2
公开(公告)日：2013-05-07
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： H02P27/04 , H02P6/00 , H02P6/12 , H02P27/00 , H02P7/00 , H02H7/08 , H02M1/14 , H02M7/44
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。

30. 发明授权

US08248010B2 Motor driving device, electric power steering device using the same and method for detecting failure in the same 有权
标题翻译：电机驱动装置，电动助力转向装置及其检测方法相同
公开(公告)号：US08248010B2
公开(公告)日：2012-08-21
申请号：US12975910
申请日：2010-12-22
申请人： Yasuhiko Mukai , Nobuhiko Uryu
发明人： Yasuhiko Mukai , Nobuhiko Uryu
IPC分类号： H02P7/08
CPC分类号： B62D5/0487 , G01R31/025 , G01R31/42 , H02P29/0241 , H02P2207/05
摘要： A voltage application unit applies voltage to windings of a motor without passing though an inverter unit. A first detection unit detects a short circuit failure in switching elements of the inverter unit based on a terminal voltage between each of the switching elements and a corresponding winding and a power voltage of a power supply. Before rotation of the motor, when no short circuit failure is detected and when a switching unit switches at least one of the high and low potential-side switching elements of the inverter unit on and subsequently switches all the switching elements off, a second failure detection unit determines whether the switching unit is incapable of rendering the switching element non-conductive based on the terminal voltage and the power voltage.
摘要翻译：电压施加单元不经过逆变器单元对电动机的绕组施加电压。第一检测单元基于各开关元件之间的端子电压和相应的绕组以及电源的电源电压来检测逆变器单元的开关元件的短路故障。在电动机旋转之前，当没有检测到短路故障时，并且当开关单元接通逆变器单元的高低电位侧开关元件中的至少一个并且随后切换所有开关元件时，第二故障检测单元确定开关单元是否不能基于端子电压和电源电压使开关元件不导通。

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