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1. 发明授权

US09475520B2 Rotational-angle detection device and electric power-steering device provided with rotational-angle detection device 有权
标题翻译：旋转角度检测装置和具有旋转角度检测装置的电动助力转向装置
公开(公告)号：US09475520B2
公开(公告)日：2016-10-25
申请号：US14359417
申请日：2011-11-24
申请人： Kohei Yanai , Kenichiro Aoki
发明人： Kohei Yanai , Kenichiro Aoki
IPC分类号： G01B7/30 , B62D5/04 , G01D5/14 , G01B7/31 , G01D3/02
CPC分类号： B62D5/0481 , B62D5/0463 , G01B7/30 , G01B7/31 , G01D3/02 , G01D5/145
摘要： When a shaft misalignment detection part detects occurrence of a shaft misalignment that is a misalignment in a relative position in a radial direction of a rotary shaft between a magnet part and a sensor part, the shaft misalignment detection part outputs a shaft misalignment determination flag to a correction part and a control change instruction part. The correction part calculates a motor rotational angle so as to reduce a detection error caused by the shaft misalignment. The control change instruction part outputs instructions of changing calculation methods so that influence by the detection error decreases to an assist torque setting part and an assist current instruction part.
摘要翻译：当轴不对准检测部件检测到在磁体部分和传感器部件之间的旋转轴的径向方向上的相对位置处的未对准的轴未对准的发生时，轴未对准检测部件将轴未对准确定标志输出到校正部分和控制改变指令部分。校正部分计算电机旋转角度，以减小由轴未对准引起的检测误差。控制变更指示部输出改变计算方法的指令，使得检测误差的影响降低到辅助转矩设定部和辅助电流指令部。

2. 发明授权

US09308934B2 Steering control system for vehicle and steering control method for vehicle 有权
标题翻译：车辆转向控制系统及车辆转向控制方法
公开(公告)号：US09308934B2
公开(公告)日：2016-04-12
申请号：US14439817
申请日：2014-01-21
申请人： Kenichiro Aoki , Satoru Mikamo , Naoki Yamano
发明人： Kenichiro Aoki , Satoru Mikamo , Naoki Yamano
IPC分类号： B62D5/04 , B62D6/10
CPC分类号： B62D5/0463 , B62D5/0472 , B62D5/0484 , B62D5/049 , B62D6/10
摘要： A steering control system for a vehicle includes an electric motor, a torque sensor, an angular velocity sensor, and a control unit. The electric motor applies assist force to a turning operation of a steering wheel. The torque sensor detects a torque generated in a steering system including the steering wheel and varying with the turning operation. The angular velocity sensor detects an angular velocity generated in the steering system and varying with the turning operation. The control unit computes an assist control amount for the turning operation by using the torque and the angular velocity, and, when an abnormality occurs in a torque detection operation, increases a control amount computed by using the angular velocity among control amounts that constitute the assist control amount as compared to that when torque sensor operation is normal and executes drive control over the electric motor based on the assist control amount.
摘要翻译：车辆的转向控制系统包括电动机，转矩传感器，角速度传感器和控制单元。电动机对方向盘的转动操作施加辅助力。转矩传感器检测在包括方向盘的转向系统中产生的扭矩并随着转弯操作而变化。角速度传感器检测在转向系统中产生的角速度，并随转弯操作而变化。控制单元通过使用转矩和角速度来计算用于转弯操作的辅助控制量，并且当在转矩检测操作中发生异常时，增加通过使用构成辅助的控制量中的角速度计算出的控制量控制量与转矩传感器运转正常时相比，基于辅助控制量执行对电动机的驱动控制。

3. 发明授权

US08660743B2 Torque detection device 有权
标题翻译：扭矩检测装置
公开(公告)号：US08660743B2
公开(公告)日：2014-02-25
申请号：US13991517
申请日：2010-12-24
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： G01M17/00 , G06F7/00 , G06F19/00 , G06F11/30 , G07C5/00
CPC分类号： G01L3/10 , B62D5/0484 , B62D6/10 , G01L3/105
摘要： An output section of one detection coil of a first resolver and an output section of one detection coil of a second resolver are connected by a first inter-coil resistor element, and an output section of the other detection coil of the first resolver and an output section of the other detection coil of the second resolver are connected by a second inter-coil resistor element. A sin wave signal for excitation is supplied to one of first and second excitation coils, and a cos wave signal for excitation having the same frequency as that of the sin wave signal for excitation and having a phase delay of 90° in relation to the sin wave signal for excitation is supplied to the other of the first and second excitation coils. By virtue of this configuration, the rotational angles of the two resolvers can be calculated even when one of detection lines is broken.
摘要翻译：第一旋转变压器的一个检测线圈的输出部分和第二旋转变压器的一个检测线圈的输出部分通过第一互隔线圈电阻元件连接，第一旋转变压器的另一个检测线圈的输出部分和输出部分第二分解器的另一个检测线圈的一部分由第二线圈间电阻元件连接。用于激励的正弦波信号被提供给第一和第二激励线圈中的一个，并且具有与用于激励的sin波信号相同频率的激励的cos波信号，并且相对于sin具有90°的相位延迟用于激励的波信号被提供给第一和第二励磁线圈中的另一个。通过这种结构，即使检测线之一被破坏，也可以算出两个分解器的旋转角度。

4. 发明授权

US08656791B2 Torque detection apparatus 失效
标题翻译：扭矩检测装置
公开(公告)号：US08656791B2
公开(公告)日：2014-02-25
申请号：US13259970
申请日：2010-08-25
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： G01L3/00
CPC分类号： G01L3/10 , B62D5/0481 , B62D5/049 , B62D6/10 , G01L3/105
摘要： A first excitation AC signal (V1=A1·sin(ωt)) is supplied to a first excitation coil of a first resolver via a first excitation line, and a second excitation AC signal (V2=−A2·sin(ωt)) is supplied to a second excitation coil of a second resolver via a second excitation line. Within a resolver unit, a first excitation line and a second excitation line are connected via an electric resistance element. By virtue of this configuration, torque can be detected even when any of a ground line, a first excitation line, and a second excitation line of a wire harness is broken.
摘要翻译：通过第一激励线将第一激励AC信号（V1 = A1·sin（ω））提供给第一解算器的第一激励线圈，第二激励AC信号（V2 = -A2·sin（ω））为通过第二激励线被提供给第二旋转变压器的第二激励线圈。在分解器单元内，通过电阻元件连接第一激励线和第二激励线。通过这种结构，即使线束的接地线，第一激励线和第二激励线中的任何一个被破坏，也可以检测转矩。

5. 发明申请

US20140005894A1 ELECTRIC POWER STEERING APPARATUS 审中-公开
标题翻译：电动转向装置
公开(公告)号：US20140005894A1
公开(公告)日：2014-01-02
申请号：US13991043
申请日：2011-12-09
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： B62D5/04
CPC分类号： B62D5/0484 , B62D5/0463 , B62D6/001
摘要： When a steering torque sensor fails, a time delay setting section calculates delayed lateral acceleration by delaying lateral acceleration. A lateral acceleration upper limit restricting section calculates restricted lateral acceleration by restricting the upper limit of the lateral acceleration by the delayed lateral acceleration. An assist torque calculation section calculates a target assist torque on the basis of the restricted lateral acceleration such that the target assist torque increases with the restricted lateral acceleration. Thus, it is possible to properly delay steering assist in relation to detection of the lateral acceleration, whereby slippage of a vehicle due to excessive turning of a steering wheel is suppressed.
摘要翻译：当转向转矩传感器失效时，延时设定部通过延迟侧向加速度来计算延迟的横向加速度。横向加速度上限限制部通过限制横向加速度的上限通过延迟的横向加速度来计算限制横向加速度。辅助转矩计算部根据限制的横向加速度来计算目标辅助转矩，使得目标辅助转矩以受限的横向加速度增加。因此，可以适当地延迟与侧向加速度的检测相关的转向辅助，由此抑制由于方向盘的过度转动而引起的车辆滑动。

6. 发明申请

US20130261886A1 TORQUE DETECTION DEVICE 有权
标题翻译：扭矩检测装置
公开(公告)号：US20130261886A1
公开(公告)日：2013-10-03
申请号：US13991517
申请日：2010-12-24
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： G01L3/10 , B62D6/10
CPC分类号： G01L3/10 , B62D5/0484 , B62D6/10 , G01L3/105
摘要： An output section of one detection coil of a first resolver and an output section of one detection coil of a second resolver are connected by a first inter-coil resistor element, and an output section of the other detection coil of the first resolver and an output section of the other detection coil of the second resolver are connected by a second inter-coil resistor element. A sin wave signal for excitation is supplied to one of first and second excitation coils, and a cos wave signal for excitation having the same frequency as that of the sin wave signal for excitation and having a phase delay of 90° in relation to the sin wave signal for excitation is supplied to the other of the first and second excitation coils. By virtue of this configuration, the rotational angles of the two resolvers can be calculated even when one of detection lines is broken.
摘要翻译：第一旋转变压器的一个检测线圈的输出部分和第二旋转变压器的一个检测线圈的输出部分通过第一互隔线圈电阻元件连接，第一旋转变压器的另一个检测线圈的输出部分和输出部分第二分解器的另一个检测线圈的一部分由第二线圈间电阻元件连接。用于激励的正弦波信号被提供给第一和第二激励线圈中的一个，并且具有与用于激励的sin波信号相同频率的激励的cos波信号，并且相对于sin具有90°的相位延迟用于激励的波信号被提供给第一和第二励磁线圈中的另一个。通过这种结构，即使检测线之一被破坏，也可以算出两个分解器的旋转角度。

7. 发明申请

US20130013154A1 ELECTRIC POWER STEERING SYSTEM 审中-公开
标题翻译：电力转向系统
公开(公告)号：US20130013154A1
公开(公告)日：2013-01-10
申请号：US13636519
申请日：2010-03-29
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： B62D6/00
CPC分类号： B62D5/0472 , B62D5/046 , B62D5/0481
摘要： A feedforward control section computes, on the basis of a target current absolute value, a voltage limit value of a motor drive circuit, and a rotational speed ωr of a motor, a phase angle of a voltage vector which represents the output voltage of the motor drive circuit by a d-q coordinate system, the phase angle being a phase angle in relation to the d-axis of the d-q coordinate system. A feedback control section computes a phase angle based on a deviation between the target current absolute value and the actual current absolute value. A PWM control signal generation section outputs PWM control signals such that the motor drive circuit outputs a three-phase drive voltage whose electrical angle is advanced by a phase angle. Thus, in the case where a large reverse input is applied to a steering mechanism, the motor is caused to generate a large torque to thereby prevent the steering wheel from being rotated.
摘要翻译：前馈控制部基于目标电流绝对值计算电动机驱动电路的电压极限值和电动机的转速ωr，表示电动机的输出电压的电压矢量的相位角驱动电路由dq坐标系，相位角是相对于dq坐标系的d轴的相位角。反馈控制部基于目标电流绝对值和实际电流绝对值之间的偏差来计算相位角。 PWM控制信号生成部输出PWM控制信号，使得电动机驱动电路输出电角度提前了相位角的三相驱动电压。因此，在向转向机构施加较大的倒档输入的情况下，使马达产生大的转矩，从而防止方向盘旋转。

8. 发明申请

US20110272205A1 ELECTRIC POWER STEERING DEVICE 失效
标题翻译：电动转向装置
公开(公告)号：US20110272205A1
公开(公告)日：2011-11-10
申请号：US12672321
申请日：2009-03-25
申请人： Masaki Fujimoto , Masaharu Yamashita , Kenichiro Aoki , Megumu Nishikohri , Akihiro Ohtomo , Eiji Kasai , Tsutomu Onagi , Keitaro Niki
发明人： Masaki Fujimoto , Masaharu Yamashita , Kenichiro Aoki , Megumu Nishikohri , Akihiro Ohtomo , Eiji Kasai , Tsutomu Onagi , Keitaro Niki
IPC分类号： B62D5/04 , B62D6/00 , B62D6/02
CPC分类号： B62D5/046 , B62D5/0466 , B62D5/0481 , H02M1/32 , H02P29/00 , H02P29/0241 , H02P29/64
摘要： An electric power steering device for a vehicle includes an estimation mechanism estimating if there is a possibility that a backward electric current flows in a booster circuit toward a vehicle battery device, and a boosting controller stopping the boosting operation of the booster circuit to prevent a backward electric current from flowing in the booster circuit when it is estimated that there is a possibility that a backward electric current flows by the estimation mechanism. The estimation mechanism estimates that there is a possibility that a backward electric current flows in the booster circuit when the steering condition of a steering wheel is a returning condition or a steering-held condition. Otherwise, the estimation mechanism estimates if a backward electric current flows on the basis of input and output voltages of the booster circuit and information on the switching of a first boosting switching element. Thereby, overheat of the booster circuit can be prevented.
摘要翻译：一种用于车辆的电动助力转向装置，包括：估计机构，估计逆向电流是否在升压电路中朝向车辆电池装置流动，升压控制器停止升压电路的升压动作，以防止向后当估计有可能通过估计机构流动的反向电流时，在升压电路中流动的电流。估计机构估计当方向盘的转向条件是返回条件或转向保持状态时，有可能在升压电路中流过反向电流。否则，估计机构基于升压电路的输入和输出电压以及关于第一升压开关元件的切换的信息来估计反向电流是否流动。由此，可以防止升压电路的过热。

9. 发明申请

US20090316302A1 MAGNETIC HEAD AND MAGNETIC DISK UNIT 审中-公开
标题翻译：磁头和磁盘单元
公开(公告)号：US20090316302A1
公开(公告)日：2009-12-24
申请号：US12368683
申请日：2009-02-10
申请人： Kenichiro Aoki
发明人： Kenichiro Aoki
IPC分类号： G11B5/60 , G11B5/127
CPC分类号： G11B5/314 , G11B5/6064
摘要： A magnetic head includes: a slider which floats above a recording medium by air flow generated by rotation of the recording medium; and an element forming section fixed to an air outflow side of the slider and formed with an element which accesses the recording medium. The element forming section includes: a recording element having a main magnetic pole which records data in the recording medium; and a reproducing element which is formed closer to the slider than the recording element and which reproduces data recorded in the recording medium. The element forming section further includes: a heat insulation layer formed between the main magnetic pole and the reproducing element; and a heater formed closer to the slider than the heat insulation layer.
摘要翻译：磁头包括：滑动器，其通过由记录介质的旋转产生的空气流浮动在记录介质的上方; 以及固定到滑块的空气流出侧的元件形成部分，并且形成有访问记录介质的元件。元件形成部分包括：具有在记录介质中记录数据的主磁极的记录元件; 以及再现元件，其形成为比记录元件更靠近滑块，并且再现记录在记录介质中的数据。元件形成部分还包括：形成在主磁极和再现元件之间的绝热层; 以及比隔热层更靠近滑块的加热器。

10. 发明申请

US20150314804A1 ELECTRIC POWER STEERING DEVICE FOR VEHICLE 审中-公开
标题翻译：用于车辆的电动转向装置
公开(公告)号：US20150314804A1
公开(公告)日：2015-11-05
申请号：US14650706
申请日：2013-01-24
申请人： Kenichiro AOKI , Kenji SHIBATA , Takayoshi TSUJIMOTO
发明人： Kenichiro AOKI , Kenji SHIBATA , Takayoshi TSUJIMOTO
IPC分类号： B62D5/04
CPC分类号： B62D5/0484 , B62D5/0463
摘要： An electric power steering device for a vehicle includes a plurality of assist systems electromagnetically driving an electric motor. When a first or second assist system malfunctions, a malfunction state assist amount calculation part calculates an assist amount while decreasing a limit value at the vehicle stopping, to an amount smaller than a limit value at the vehicle moving. When a malfunction such as a disconnection or a fixing of the switching elements occurs in the first or second assist systems on the basis of a judgment result of a malfunction judgment function, an assist amount switching part supplies an assist amount received from the malfunction state assist amount calculation part to first and second motor drive control parts. When a malfunction occurs in one of the first and second assist systems, one of the first and second motor drive control parts drives the motor by using the assist amount.
摘要翻译：一种用于车辆的电动助力转向装置，包括电磁驱动电动机的多个辅助系统。当第一辅助系统或第二辅助系统发生故障时，故障状态辅助量计算部分在将车辆停止时的极限值减小到小于车辆移动的极限值的量的同时，计算辅助量。基于故障判断功能的判断结果，在第一辅助系统或第二辅助系统中发生诸如断路或固定开关元件之类的故障时，辅助量切换部分提供从故障状态辅助接收到的辅助量数量计算部分到第一和第二电机驱动控制部分。当在第一和第二辅助系统之一发生故障时，第一和第二电动机驱动控制部件中的一个通过使用辅助量来驱动电动机。

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