公开(公告)号：US20070146169A1

公开(公告)日：2007-06-28

申请号：US10578267

申请日：2004-11-01

Applicant: Tetsuro Otsuka ,  Atsushi Horikoshi ,  Yuho Aoki

Inventor： Tetsuro Otsuka ,  Atsushi Horikoshi ,  Yuho Aoki

IPC: H03M1/22

CPC classification number: G01D5/24461 ,  B62D5/046 ,  B62D5/0487 ,  H02P29/032

Abstract: Since an abnormality is judged by executing a square calculating process with respect to sin θ and cos θ for detecting an abnormality in an angular resolver, a processing time is elongated, and a burden to a CPU is great. Since the invention prepares a map which can judge whether the combination of sin θ and cos θ is normal or abnormal, and judges by mapping the combination of the detected sin θ and cos θ, a process can be easily executed, a processing speed is high, and a burden to the CPU can be reduced. Further, an assist can be maintained by controlling a motor by a rectangular wave current by detecting a rotation angle signal at low resolution level, such as Hall sensors arranged around the motor.

Abstract translation: 由于通过执行关于sinθ和cosθ的平方计算处理来检测角解算器中的异常来判断异常，所以处理时间变长，并且对CPU的负担很大。 由于本发明准备一个可以判断sinθ和cosθ的组合是正常还是异常的映射，并且通过映射检测到的sinθ和cosθ的组合来判断，可以容易地执行处理，处理速度高 可以减轻对CPU的负担。 此外，通过以低分辨率水平检测旋转角度信号，例如布置在电动机周围的霍尔传感器，通过矩形波电流控制电动机可以保持辅助。

公开(公告)号：US07382295B2

公开(公告)日：2008-06-03

申请号：US10578267

申请日：2004-11-01

Applicant: Tetsuro Otsuka ,  Atsushi Horikoshi ,  Yuho Aoki

Inventor： Tetsuro Otsuka ,  Atsushi Horikoshi ,  Yuho Aoki

IPC: H03M1/48

CPC classification number: G01D5/24461 ,  B62D5/046 ,  B62D5/0487 ,  H02P29/032

Abstract: Since an abnormality is judged by executing a square calculating process with respect to sin θ and cos θ for detecting an abnormality in an angular resolver, a processing time is elongated, and a burden to a CPU is great. Since the invention prepares a map which can judge whether the combination of sin θ and cos θ is normal or abnormal, and judges by mapping the combination of the detected sin θ and cos θ, a process can be easily executed, a processing speed is high, and a burden to the CPU can be reduced. Further, an assist can be maintained by controlling a motor by a rectangular wave current by detecting a rotation angle signal at low resolution level, such as Hall sensors arranged around the motor.

Abstract translation: 由于通过执行关于sinθ和cosθ的平方计算处理来检测角解算器中的异常来判断异常，所以处理时间变长，并且对CPU的负担很大。 由于本发明准备一个可以判断sinθ和cosθ的组合是正常还是异常的映射，并且通过映射检测到的sinθ和cosθ的组合来判断，可以容易地执行处理，处理速度高 可以减轻对CPU的负担。 此外，通过以低分辨率水平检测旋转角度信号，例如布置在电动机周围的霍尔传感器，通过矩形波电流控制电动机可以保持辅助。

公开(公告)号：US20070103105A1

公开(公告)日：2007-05-10

申请号：US10579771

申请日：2004-11-11

Applicant: Shuji Endo ,  Yuho Aoki

Inventor： Shuji Endo ,  Yuho Aoki

IPC: H02P7/00

CPC classification number: B62D5/046

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070000717A1

公开(公告)日：2007-01-04

申请号：US10569625

申请日：2004-08-26

Applicant: Kazuhiro Kumaido ,  Yuusuke Itakura ,  Yuho Aoki ,  Nobuhiro Kubo

Inventor： Kazuhiro Kumaido ,  Yuusuke Itakura ,  Yuho Aoki ,  Nobuhiro Kubo

IPC: B62D5/04

CPC classification number: B62D5/0481 ,  B62D5/049

Abstract: The present invention provides a controller of an electric power steering device which does not apply an uncomfortable feeling to a operation of steering wheel while securing a fault determination confirming period enough long to prevent an erroneous detection of a torque sensor fault, and can secure a safety operation of steering wheel, even in the case that an output value of a torque sensor detecting a steering torque of a steering wheel becomes abnormal.

Abstract translation: 本发明提供一种电动助力转向装置的控制装置，其不会对方向盘的操作施加不舒适的感觉，同时确保故障确定确认期足够长以防止扭矩传感器故障的错误检测，并且可以确保安全 即使在检测到方向盘的转向转矩的转矩传感器的输出值变得异常的情况下也能够进行方向盘的动作。

公开(公告)号：US07363136B2

公开(公告)日：2008-04-22

申请号：US11449604

申请日：2006-06-09

Applicant: Kazuhiro Kumaido ,  Yuho Aoki

Inventor： Kazuhiro Kumaido ,  Yuho Aoki

IPC: B62D5/04

CPC classification number: B62D5/0493 ,  B62D5/0481

Abstract: An initial abnormality analysis data is reliably retained by a controller of an electric power steering apparatus. The controller of the electric power steering apparatus is constituted by comprising abnormality detection device for detecting the abnormality of a steering assist control mechanism comprising an electric motor giving a steering assist force to a steering system and abnormality data storage device for storing abnormality analysis data in storage device when the abnormality of the steering assist control mechanism is detected by this abnormality detection device, wherein the storage device comprises a plurality of overwrite prohibition storage areas for prohibiting rig the overwrite of the abnormality analysis data and a plurality of overwrite allowable storage areas for overwriting and storing the abnormality analysis data, and wherein the abnormality data storage device stores the abnormality of the steering assist control mechanism detected by the abnormality detection device in the overwrite prohibition storage area when the abnormality is a first abnormality analysis data, and stores the abnormality in the overwrite allowable storage area when the abnormality is the abnormality analysis data subsequent to the second time.

Abstract translation: 初始异常分析数据由电动助力转向装置的控制器可靠地保持。 电动助力转向装置的控制装置由包括用于检测转向辅助控制机构的异常的异常检测装置构成，所述异常检测装置包括向转向系统提供转向辅助力的电动机和用于存储存储异常分析数据的异常数据存储装置 所述异常检测装置检测到所述转向辅助控制机构的异常时，所述存储装置具有多个用于禁止所述异常分析数据的覆盖的重写禁止存储区域和用于覆盖的多个覆盖允许存储区域 并且存储异常分析数据，并且其中异常数据存储装置在异常是第一异常分析数据时将由异常检测装置检测到的转向辅助控制机构的异常存储在重写禁止存储区域中，并且sto 当异常是第二次之后的异常分析数据时，解除覆盖允许存储区域中的异常。

公开(公告)号：US20070205733A1

公开(公告)日：2007-09-06

申请号：US11508302

申请日：2006-08-23

Applicant: Hideaki Kawada ,  Yuho Aoki

Inventor： Hideaki Kawada ,  Yuho Aoki

IPC: H02P7/00

CPC classification number: B62D5/0463 ,  B62D5/0481

Abstract: The present invention includes a control part for controlling switching elements on diagonal lines in the upper and lower stage of an H bridge circuit respectively by different duty ratios based on a steering torque exerted on a steering system, and an electric power supply source for supplying an electric power. When the voltage of the electric power supply source is lower than a prescribed voltage, the control part causes the switching element EET 1 or FET 2 on the upper-stage side to be driven by a pulse width modulation signal PWM1 or PWM2, the switching element FET 4 or FET3 on the lower-stage side to be turned on, and the frequency of the pulse width modulation signal to be lowered to an audible frequency range.

Abstract translation: 本发明包括一个控制部分，用于根据施加在转向系统上的转向转矩，通过不同的占空比分别控制H桥电路的上，下级的对角线上的开关元件;以及电源， 电力。 当电源的电压低于指定电压时，控制部分使得上级侧的开关元件EET1或FET2由脉冲宽度调制信号PWM 1或PWM 2驱动， 开关元件FET4或FET3在下级侧被导通，并且脉宽调制信号的频率降低到可听频率范围。

公开(公告)号：US07265509B2

公开(公告)日：2007-09-04

申请号：US11181859

申请日：2005-07-15

Applicant: Shuji Endo ,  Yuho Aoki ,  Kenji Mori ,  Toru Sakaguchi ,  Sakae Nejo ,  Hideaki Okazaki ,  Lilit Kovudhikulrungsri

Inventor： Shuji Endo ,  Yuho Aoki ,  Kenji Mori ,  Toru Sakaguchi ,  Sakae Nejo ,  Hideaki Okazaki ,  Lilit Kovudhikulrungsri

IPC: H02P7/00

CPC classification number: B62D5/0472 ,  B62D5/0463

Abstract: The present invention provides an excellent electric power steering apparatus in which torque ripple caused by a quantization error of a current control system generated in case of slow steering state and steering holding state, namely, vibration and noise on a steering wheel can be suppressed. A current controller in which a steady state gain of feedback control is a finite value is used so as to be capable of suppressing the vibration and noise. Further, according to the present invention, a smoothing filter is included in a current control system so that the quantization error is smoothed so that the torque ripple is suppressed.

Abstract translation: 本发明提供了一种优良的电动助力转向装置，其中可以抑制在转向缓慢的状态和转向保持状态下产生的当前控制系统的量化误差引起的转矩波动，即方向盘上的振动和噪声。 使用其中反馈控制的稳态增益为有限值的电流控制器，以便能够抑制振动和噪声。 此外，根据本发明，在电流控制系统中包括平滑滤波器，使得量化误差平滑，从而抑制转矩脉动。

公开(公告)号：US20060012323A1

公开(公告)日：2006-01-19

申请号：US11181859

申请日：2005-07-15

Applicant: Shuji Endo ,  Yuho Aoki ,  Kenji Mori ,  Toru Sakaguchi ,  Sakae Nejo ,  Hideaki Okazaki ,  Lilit Kovudhikulrungsri

Inventor： Shuji Endo ,  Yuho Aoki ,  Kenji Mori ,  Toru Sakaguchi ,  Sakae Nejo ,  Hideaki Okazaki ,  Lilit Kovudhikulrungsri

IPC: H02P7/00

CPC classification number: B62D5/0472 ,  B62D5/0463

Abstract: The present invention provides an excellent electric power steering apparatus in which torque ripple caused by a quantization error of a current control system generated in case of slow steering state and steering holding state, namely, vibration and noise on a steering wheel can be suppressed. A current controller in which a steady state gain of feedback control is a finite value is used so as to be capable of suppressing the vibration and noise. Further, according to the present invention, a smoothing filter is included in a current control system so that the quantization error is smoothed so that the torque ripple is suppressed.

Abstract translation: 本发明提供了一种优良的电动助力转向装置，其中可以抑制在转向缓慢的状态和转向保持状态下产生的当前控制系统的量化误差引起的转矩波动，即方向盘上的振动和噪声。 使用其中反馈控制的稳态增益为有限值的电流控制器，以便能够抑制振动和噪声。 此外，根据本发明，在电流控制系统中包括平滑滤波器，使得量化误差平滑，从而抑制转矩脉动。

公开(公告)号：US09087077B2

公开(公告)日：2015-07-21

申请号：US13520870

申请日：2012-05-30

Applicant: Yuho Aoki ,  Shuji Endo ,  Kenichi Okamoto

Inventor： Yuho Aoki ,  Shuji Endo ,  Kenichi Okamoto

IPC: G06F11/00 ,  G06F11/30 ,  G06F11/07 ,  G06F11/16

CPC classification number: G06F11/0757 ,  G05B9/03 ,  G05B19/0428 ,  G06F11/0721 ,  G06F11/0739 ,  G06F11/0751 ,  G06F11/079 ,  G06F11/0793 ,  G06F11/1641 ,  G06F11/3013 ,  G06F11/3024 ,  G06F11/3055 ,  G06F11/3466

Abstract: An in-vehicle electronic control device for diagnosing the details of an abnormality of a microcomputer appropriately is provided. A monitoring function for detecting a malfunction by monitoring input/output of a main function of a hardware part and a monitoring function for detecting an abnormality by monitoring the calculating result of a main function in a software part are provided in a microcomputer. The main function to be monitored is implemented with a different structure than the malfunction/abnormality monitoring function. Furthermore, a malfunction processing circuit for monitoring an abnormality of the microcomputer is provided outside the microcomputer.

Abstract translation: 提供一种适用于诊断微型计算机异常的细节的车载电子控制装置。 通过监视软件部分中的主要功能的计算结果来监视通过监视硬件部分的主要功能的输入/输出和用于检测异常的监视功能的监视功能。 主要监控功能采用与故障/异常监控功能不同的结构。 此外，在微计算机外部设置有用于监视微型计算机异常的故障处理电路。

公开(公告)号：US20080027609A1

公开(公告)日：2008-01-31

申请号：US11782739

申请日：2007-07-25

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

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

IPC: B62D5/04

CPC classification number: B62D5/0472 ,  B62D5/0463

Abstract: 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.

Abstract translation: 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。