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公开(公告)号：US06223852B1
公开(公告)日：2001-05-01
申请号：US09127107
申请日：1998-07-31
申请人： Yoshinobu Mukai , Yoshiki Noro , Yasuo Shimizu , Osamu Tsurumiya , Takao Kurosawa , Nobuo Sugitani
发明人： Yoshinobu Mukai , Yoshiki Noro , Yasuo Shimizu , Osamu Tsurumiya , Takao Kurosawa , Nobuo Sugitani
IPC分类号： B62D504
CPC分类号： B62D5/0463 , B62D5/0481
摘要： An electric power steering apparatus for a vehicle includes a protection circuit for stopping operation of an electric motor provided to apply a steering assist force to a steering system of the vehicle. The protection circuit is operable to stop operation of the electric motor when an ignition off signal is supplied from an ignition sensor and at least one of an engine speed signal supplied from an engine speed sensor and a vehicle velocity signal supplied from a vehicle velocity sensor falls below a corresponding predetermined value. Even if an ignition on signal is not supplied during movement of the vehicle due to a failure in the ignition sensor, when the engine speed signal or the vehicle velocity signal is above the predetermined value, the vehicle is regarded as being in the running state and operation of the electric motor is continued to apply the steering assist force to the steering system. With this arrangement, a good and stable steering feel can be obtained during movement of the vehicle.
摘要翻译： 一种用于车辆的电动助力转向装置，包括用于停止对车辆的转向系统施加转向辅助力而设置的电动机的动作的保护电路。 当从点火传感器提供点火关闭信号时，保护电路可操作以停止电动机的动作，并且从发动机转速传感器供给的发动机转速信号和从车速传感器供给的车速信号中的至少一个下降 低于相应的预定值。 即使由于点火传感器的故障而在车辆的运动期间没有提供点火开启信号，当发动机转速信号或车速信号高于预定值时，车辆被认为处于行驶状态， 电动机的操作继续向转向系统施加转向辅助力。 利用这种布置，在车辆移动期间可以获得良好且稳定的转向感。
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公开(公告)号：US5927430A
公开(公告)日：1999-07-27
申请号：US124601
申请日：1998-07-29
申请人： Yoshinobu Mukai , Yoshiki Noro , Osamu Tsurumiya , Takao Kurosawa , Nobuo Sugitani , Yasuo Shimizu
发明人： Yoshinobu Mukai , Yoshiki Noro , Osamu Tsurumiya , Takao Kurosawa , Nobuo Sugitani , Yasuo Shimizu
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00 , B62D137/00
CPC分类号： B62D5/049 , B62D5/0463 , B62D5/0484
摘要： An electric power steering apparatus includes a control unit having a sensor fault detecting section, a first drive control signal generating section, a second drive control signal generating section, and a motor drive control mode switching section. When the sensor fault detecting section does not detect any faulty sensor, operation of an electric motor is feedback-controlled in such a manner that an offset between a target current set in accordance with a steering torque and a motor current becomes zero, and the motor applies a steering assist torque to the steering system on the basis of a first drive control signal supplied from the first drive control signal generating section. When a faulty sensor is detected by the sensor fault detecting section, the motor drive control switching section changes over drive control modes of the motor such that the motor is feedforward-controlled on the basis of a second drive control signal which is generated by the second drive control signal generating section on the basis of a target current signal set in accordance with a steering torque.
摘要翻译： 一种电动助力转向装置，包括具有传感器故障检测部，第一驱动控制信号生成部，第二驱动控制信号生成部以及电动机驱动控制模式切换部的控制部。 当传感器故障检测部分没有检测到任何故障的传感器时，电动机的操作以使得根据转向转矩设置的目标电流与电动机电流之间的偏移变为零的方式进行反馈控制，并且电动机 基于从第一驱动控制信号生成部提供的第一驱动控制信号，向转向系统施加转向辅助转矩。 当由传感器故障检测部分检测到故障传感器时，电动机驱动控制切换部分改变电动机的驱动控制模式，使得电动机基于由第二驱动控制信号产生的第二驱动控制信号进行前馈控制 驱动控制信号生成部，根据转向转矩设定的目标电流信号。
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公开(公告)号：US6041884A
公开(公告)日：2000-03-28
申请号：US152228
申请日：1998-09-11
申请人： Yasuo Shimizu , Akio Kobayashi , Osamu Tsurumiya , Takao Kurosawa , Nobuo Sugitani , Yoshinobu Mukai , Yoshiki Noro
发明人： Yasuo Shimizu , Akio Kobayashi , Osamu Tsurumiya , Takao Kurosawa , Nobuo Sugitani , Yoshinobu Mukai , Yoshiki Noro
IPC分类号： B62D6/00 , B62D1/16 , B62D5/04 , B62D101/00 , B62D113/00 , B62D119/00 , B62D137/00
CPC分类号： B62D1/166 , B62D5/0481 , B62D5/0484 , B62D6/008
摘要： An electric power steering apparatus comprises a motor for applying an auxiliary torque to a steering system, a steering torque sensor for detecting a steering torque in the steering system and a control unit for drive-controlling the motor based on at least a steering torque signal from the steering torque sensor. The control unit includes a motor control unit and a failure detecting unit for detecting a failure of the control unit. Based on a failure detection signal from the failure detecting unit, the motor drive control unit switches over from a normal mode in which no failure exists in the apparatus to a first failure mode in which a certain failure exists in the apparatus and an assist ratio is changed to about half of that of the normal mode.
摘要翻译： 一种电动助力转向装置，包括用于向转向系统施加辅助转矩的电动机，用于检测转向系统中的转向转矩的转向转矩传感器以及至少基于转向转矩信号的转向转矩信号来控制电动机的控制单元 转向扭矩传感器。 控制单元包括电机控制单元和故障检测单元，用于检测控制单元的故障。 根据来自故障检测单元的故障检测信号，马达驱动控制单元从设备中不存在故障的正常模式切换到设备中存在某种故障的第一故障模式，辅助比为 改为正常模式的一半左右。
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公开(公告)号：US5473539A
公开(公告)日：1995-12-05
申请号：US164884
申请日：1993-12-10
IPC分类号： B62D5/04
CPC分类号： B62D5/0463 , B62D5/0466
摘要： An electrically operated power steering apparatus in a motor vehicle has a steering system for steering the motor vehicle, a steering torque detector for detecting a manual steering torque applied to the steering system, and an electric motor for generating an assistive torque to be transmitted as a steering assistive force to the steering system. An actual assistive torque detector detects an actual assistive steering torque which is actually transmitted from the electric motor to the steering system. A controller has at least a target assistive torque generator for generating a target value for an assistive torque to be generated by the electric motor depending on the manual steering torque detected by the steering torque detector, and generates a control signal based on the difference between the actual assistive steering torque detected by the actual assistive torque detector and the target value generated by the target assistive torque generator. The electric motor is energized by a motor driver based on the control signal from the controller.
摘要翻译： 机动车辆中的电动动力转向装置具有用于转向机动车辆的转向系统，用于检测施加到转向系统的手动转向转矩的转向转矩检测器，以及用于产生将被作为转向系统传递的辅助转矩的电动机 转向辅助力转向系统。 实际的辅助转矩检测器检测实际的从电动机向转向系统发送的辅助转向转矩。 控制器至少具有目标辅助扭矩发生器，用于根据由转向转矩检测器检测到的手动转向转矩来产生由电动机产生的辅助转矩的目标值，并且基于该转向转矩检测器之间的差产生控制信号 由实际辅助转矩检测器检测到的实际辅助转向转矩和由目标辅助扭矩发生器产生的目标值。 基于来自控制器的控制信号，电动机由电动机驱动器通电。
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公开(公告)号：US5631529A
公开(公告)日：1997-05-20
申请号：US456527
申请日：1995-06-01
申请人： Yasuo Shimizu , Yashito Nakamura , Yoshiki Noro
发明人： Yasuo Shimizu , Yashito Nakamura , Yoshiki Noro
CPC分类号： B62D5/0463
摘要： An electric power steering apparatus provides a steering power assist of a motor to the steering system of an associated automotive vehicle, so as to reduce necessary steering power to be applied by a driver. The steering apparatus includes an attenuation device in the form of a phase delay circuit or an active low-pass filter, which is provided in a feedback loop connecting a motor current detector and a control section of a control unit constituting the vehicle steering system. By the attenuation device attenuating relatively high frequency components of motor current detected by the motor current detector, there is achieved a high-performance electric power steering apparatus which is capable of reducing noise in the feedback loop, without affecting the motor current, to a sufficient degree to highly improve a response to a driver's steering operation.
摘要翻译： 电动助力转向装置向相关机动车辆的转向系统提供电动机的转向动力辅助，以便减少驾驶员施加的必要转向动力。 转向装置包括相位延迟电路或有源低通滤波器形式的衰减装置，该衰减装置设置在连接电动机电流检测器和构成车辆转向系统的控制单元的控制部分的反馈回路中。 通过衰减装置衰减由电动机电流检测器检测的电动机电流的相对较高的频率分量，实现了一种高性能电动助力转向装置，其能够将反馈回路中的噪声减小而不影响电动机电流，达到足够的 以高度改善驾驶员转向操作的响应程度。
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6.发明授权Electrically operated power steering apparatus for assisting manual steering operation in a motor vehicle 失效用于辅助机动车辆中的手动转向操作的电动助力转向装置
公开(公告)号：US5596252A
公开(公告)日：1997-01-21
申请号：US353300
申请日：1994-12-06
CPC分类号： B62D5/0463 , B62D5/0466
摘要： An electrically operated power steering apparatus basically has a steering torque sensor, a steering rotational speed sensor, and preferably a vehicle sensor. A controller outputs a motor control signal based on a steering torque, a steering rotational speed, and a vehicle speed which are detected by the steering torque sensor, the steering rotational speed sensor, and the vehicle sensor, respectively. The motor control signal is applied to control a motor driver to output a motor drive signal which energizes an electric motor to produce an assistive steering force or a braking force. The electrically operated power steering apparatus is effective to improve steering and returning characteristics of a steering system, and give the steering system a stable steering capability.
摘要翻译： 电动助力转向装置基本上具有转向扭矩传感器，转向转速传感器，优选车辆传感器。 控制器基于转向转矩传感器，转向转速传感器和车辆传感器检测到的转向转矩，转向转速和车速分别输出电动机控制信号。 施加电动机控制信号以控制电动机驱动器输出对电动机通电以产生辅助转向力或制动力的电动机驱动信号。 电动动力转向装置有效地改善转向系统的转向和返回特性，并且使转向系统具有稳定的转向能力。
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公开(公告)号：US5612877A
公开(公告)日：1997-03-18
申请号：US462593
申请日：1995-06-05
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D117/00 , B62D119/00
CPC分类号： B62D5/0463
摘要： This invention is an electric power steering apparatus for applying the power of an electric motor to a steering system to reduce the steering torque, comprising a steering torque detection means, steering rotating speed detection means, a differential operation means, an electric motor control signal determination means, and an electric motor drive means. The apparatus detects the steering torque and steering rotating speed of the steering system to generate as an electric motor control signal a control quantity obtained by damping the value corresponding to the steering rotating speed from the value corresponding to the steering torque and then adding to the result a steering torque differential value in order to drive the electric motor based on this electric motor control signal, thereby enabling a steering assist torque corresponding to a change in the steering torque to be obtained even when a steering operation with a sudden increase in the steering torque is performed and thus enabling a responsive steering assist torque to be generated to improve the steering feeling.
摘要翻译： 本发明是一种用于将电动机的动力施加到转向系统以降低转向转矩的电动助力转向装置，包括转向转矩检测装置，转向转速检测装置，差速运算装置，电动机控制信号判定 装置和电动机驱动装置。 该装置检测转向系统的转向转矩和转向转速，从而产生作为电动机控制信号的控制量，该控制量是通过从对应于转向转矩的值中减去对应于转向转速的值而得到的，然后将其加到结果 转向转矩差值，以便基于该电动机控制信号来驱动电动机，从而即使在转向转矩突然增加的转向操作时也能够获得与转向转矩的变化相对应的转向辅助转矩 从而能够产生响应转向辅助转矩以改善转向感。
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公开(公告)号：US08924080B2
公开(公告)日：2014-12-30
申请号：US14236239
申请日：2012-05-22
申请人： Yoshihiro Oniwa , Yasuo Shimizu , Atsuhiko Yoneda
发明人： Yoshihiro Oniwa , Yasuo Shimizu , Atsuhiko Yoneda
CPC分类号： B62D5/0463 , G05D17/02
摘要： Provided is an electric power steering device in which the operation feeling is improved without a decrease in commercial value. A phase compensation unit performs a frequency shift on a compensation frequency band compensated by the phase compensation unit. The phase compensation unit performs phase-shift in the compensation frequency band through a frequency shift process, instead of an increase in compensation gain. Therefore, it is possible to minimize occurrences of minute vibrations and abnormal noise in the steering system including the motor that accompany an increase in gain, and to improve the operation feeling and commercial value.
摘要翻译： 本发明提供一种在不降低商业价值的情况下提高操作感觉的电动助力转向装置。 相位补偿单元对由相位补偿单元补偿的补偿频带进行频移。 相位补偿单元通过频移处理来执行补偿频带中的相移，而不是补偿增益的增加。 因此，可以使伴随增益增加的包括电动机的转向系统中的微小振动和异常噪声的发生最小化，并且提高操作感和商业价值。
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公开(公告)号：US20140195122A1
公开(公告)日：2014-07-10
申请号：US14236239
申请日：2012-05-22
申请人： Yoshihiro Oniwa , Yasuo Shimizu , Atsuhiko Yoneda
发明人： Yoshihiro Oniwa , Yasuo Shimizu , Atsuhiko Yoneda
IPC分类号： B62D5/04
CPC分类号： B62D5/0463 , G05D17/02
摘要： Provided is an electric power steering device in which the operation feeling is improved without a decrease in commercial value. A phase compensation unit performs a frequency shift on a compensation frequency band compensated by the phase compensation unit. The phase compensation unit performs phase-shift in the compensation frequency band through a frequency shift process, instead of an increase in compensation gain. Therefore, it is possible to minimize occurrences of minute vibrations and abnormal noise in the steering system including the motor that accompany an increase in gain, and to improve the operation feeling and commercial value.
摘要翻译： 本发明提供一种在不降低商业价值的情况下提高操作感觉的电动助力转向装置。 相位补偿单元对由相位补偿单元补偿的补偿频带进行频移。 相位补偿单元通过频移处理来执行补偿频带中的相移，而不是补偿增益的增加。 因此，可以使伴随增益增加的包括电动机的转向系统中的微小振动和异常噪声的发生最小化，并且提高操作感和商业价值。
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公开(公告)号：US08670904B2
公开(公告)日：2014-03-11
申请号：US12937485
申请日：2009-05-28
申请人： Atsuhiko Yoneda , Yasuo Shimizu
发明人： Atsuhiko Yoneda , Yasuo Shimizu
CPC分类号： B62D5/0484 , B62D5/046 , B62D5/049 , H02P6/185 , H02P29/032
摘要： A motor control device includes: a rotation angle detection portion that detects a rotation angle of a motor and outputs a rotation angle signal; an abnormal condition detection portion that detects the presence or absence of an abnormal condition of the rotation angle detection portion; a rotation angle estimation portion that estimates the rotation angle of the motor and outputs an estimate rotation angle signal; and a driving control portion that controls driving of the motor on the basis of the rotation angle signal, which is output from the rotation angle detection portion, when the abnormal condition detection portion does not detect an abnormal condition of the rotation angle detection portion, and controls driving of the motor on the basis of the estimate rotation angle signal, which is output from the rotation angle estimation portion, when the abnormal condition detection portion detects an abnormal condition of the rotation angle detection portion.
摘要翻译： 电动机控制装置包括：旋转角度检测部，其检测电动机的旋转角度并输出旋转角度信号; 异常状态检测部，其检测所述旋转角度检测部的异常状况的有无; 旋转角度估计部，其估计所述电动机的旋转角度并输出估计旋转角度信号; 以及驱动控制部，当所述异常状态检测部未检测到所述旋转角度检测部的异常状态时，基于从所述旋转角度检测部输出的旋转角度信号来控制所述电动机的驱动，以及 当异常状态检测部检测到旋转角度检测部的异常状况时，基于从旋转角度估计部输出的估计旋转角度信号来控制电动机的驱动。
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