公开(公告)号：US06373217B1

公开(公告)日：2002-04-16

申请号：US09606987

申请日：2000-06-29

申请人： Hideaki Kawada ,  Shuji Endo ,  Toru Sakaguchi

发明人： Hideaki Kawada ,  Shuji Endo ,  Toru Sakaguchi

IPC分类号： B62D504

CPC分类号： B62D5/0493 ,  B62D5/0463

摘要： There have been cases wherein the program itself does not operate normally and only continues to output the monitoring pulse so that racing cannot be detected, or due to electromagnetic waves or noise a pulse signal being outputted normally is measured erroneously and a mis-detection is made. In a control apparatus of an electric power steering system for, on the basis of a current command value computed from a current detected value of a motor and a steering assist command value computed on the basis of a steering torque arising in a steering shaft, controlling the motor, which applies a steering assist force to a steering mechanism, a control apparatus of an electric power steering system characterized in that it comprises a first control part and a second control part each inputting at least a torque signal, a vehicle speed signal, the motor current detected value and a motor terminal voltage, and the motor is controlled with the first control part and the second control part.

摘要翻译： 存在程序本身不能正常运行并且仅继续输出监视脉冲以使得无法检测到赛车或由于电磁波或噪声正常输出脉冲信号被错误地测量并且进行错误检测的情况 。 在电动助力转向系统的控制装置中，根据从电动机的当前检测值计算的电流指令值和基于转向轴中产生的转向转矩计算出的转向辅助指令值，控制 对转向机构施加转向辅助力的电动机，电动助力转向系统的控制装置，其特征在于，包括：第一控制部和第二控制部，每个至少输入转矩信号，车速信号， 电动机电流检测值和电动机端子电压，并且电动机由第一控制部分和第二控制部分控制。

公开(公告)号：US5732790A

公开(公告)日：1998-03-31

申请号：US562897

申请日：1995-11-27

申请人： Shuji Endo ,  Hiroyuki Kano ,  Hideaki Kawada ,  Yasuhiko Miyaura ,  Isamu Chikuma ,  Hiroshi Eda ,  Shozo Sekiya ,  Nobuyasu Ando ,  Kenichi Hayakawa

发明人： Shuji Endo ,  Hiroyuki Kano ,  Hideaki Kawada ,  Yasuhiko Miyaura ,  Isamu Chikuma ,  Hiroshi Eda ,  Shozo Sekiya ,  Nobuyasu Ando ,  Kenichi Hayakawa

IPC分类号： B62D5/04 ,  B62D6/10

CPC分类号： B62D5/0409 ,  B62D5/0406 ,  B62D6/10

摘要： In order to provide an electric power steering apparatus which can be made compact as well as reduced in cost and can be improved in reliability, a control circuit and a drive circuit are provided on a deformable flexible circuit substrate. The circuit substrate is provided on the housing of a reduction gear mechanism while being deformed so as to cover a portion of the outer surface of the housing along the shape of the outer surface.

摘要翻译： 为了提供一种电动助力转向装置，其可以制造得紧凑并且成本降低并且可以提高可靠性，在可变形的柔性电路基板上提供控制电路和驱动电路。 电路基板被设置在减速机构的壳体上，同时沿着外表面的​​形状变形以覆盖外壳的外表面的一部分。

公开(公告)号：US06268708B1

公开(公告)日：2001-07-31

申请号：US09460728

申请日：1999-12-14

申请人： Hideaki Kawada ,  Shuji Endo

发明人： Hideaki Kawada ,  Shuji Endo

IPC分类号： H02P104

CPC分类号： B62D5/0469 ,  B62D5/0487 ,  H02H7/0844 ,  H02P29/02

摘要： In control devices of electric power steering systems, steering characteristics are improved by control being carried out by means of a signal based on rotor speed or steering angle after failure of a torque sensor is detected. In the present invention, in a control device of an electric power steering system for controlling a motor applying a steering assist force to a steering mechanism on the basis of a current control value computed from a motor current value and a steering assist command value computed on the basis of a steering torque in a steering shaft, two over-current detecting circuits have different detection current values; when an over-current is detected by the circuit having the lower current detection value within the response time of current control, the duty of PWM for driving the motor is restricted, and when an over-current is detected by the circuit having the higher current detection value, motor current output is stopped and a relay is opened and the system is disengaged from the steering mechanism.

摘要翻译： 在电动助力转向系统的控制装置中，通过在检测到转矩传感器故障之后通过基于转子速度或转向角的信号进行控制来提高转向特性。 在本发明中，在电动助力转向装置的控制装置中，该电动动力转向装置用于根据从电动机电流值计算出的电流控制值和根据上述计算出的转向辅助指令值，控制向转向机构施加转向辅助力的电动机 转向轴的转向转矩的基础，两个过电流检测电路具有不同的检测电流值; 当在电流控制的响应时间内具有较低电流检测值的电路检测到过电流时，用于驱动电动机的PWM的占空比被限制，并且当具有较高电流的电路检测到过电流时 检测值，电机电流输出停止，继电器断开，系统与转向机构脱开。

公开(公告)号：US06658333B2

公开(公告)日：2003-12-02

申请号：US10060292

申请日：2002-02-01

申请人： Hideaki Kawada ,  Yusuke Itakura ,  Yasuhiko Miyaura ,  Shuji Endo ,  Hisayoshi Koiwai

发明人： Hideaki Kawada ,  Yusuke Itakura ,  Yasuhiko Miyaura ,  Shuji Endo ,  Hisayoshi Koiwai

IPC分类号： B62D504

CPC分类号： B62D5/0484 ,  B62D5/049

摘要： A control apparatus of power steering device having functions of monitoring intermediate troubles such as offset or drift out of signal troubles of torque sensor, and limiting the current for limiting the assist function is presented. In a control apparatus of power steering device for controlling a motor on the basis of a current control value calculated from a steering assist command value calculated by calculating means on the basis of a steering torque generated on a steering shaft, and a current value of a motor for applying a steering assist force to a steering mechanism, wherein the difference of a main torque signal and a sub torque signal of a torque sensor for detecting the steering torque is stored preliminarily, and the difference of the main torque signal and the sub torque signal during operation is compared with the stored value, and at least the current control value is limited when the difference based on the comparison is a condition larger than a first prescribed value and continues for a time longer than a first prescribed time.

公开(公告)号：US6013994A

公开(公告)日：2000-01-11

申请号：US931619

申请日：1997-09-16

申请人： Shuji Endo ,  Hideyuki Kobayashi ,  Kei Chin ,  Yusuke Itakura ,  Hideaki Kawada

发明人： Shuji Endo ,  Hideyuki Kobayashi ,  Kei Chin ,  Yusuke Itakura ,  Hideaki Kawada

IPC分类号： B62D5/04 ,  H02P7/14

CPC分类号： B62D5/0463

摘要： To provide a controller of an electric power-steering system, capable of improving the steering performance by presuming a motor angular speed .omega. in a range in which the angular speed of a motor is small and moreover very accurately presuming the motor angular speed and thereby, completely showing the functions for compensating the inertia of the motor and controlling the astringency of a vehicle. Because the presumed error of a back electromotive force between a model motor and a motor to be actually mounted is proportional to a motor current, a dead zone of a motor angular speed having a width proportional to a motor current is set to the presumed value of the motor angular speed. When the motor current is small, the width of the dead zone also decreases. Therefore, it is possible to presume an angular speed .omega. even in a region where the motor angular speed is small. Moreover, a motor angular speed is presumed by defining impedance models of motor driving systems in an intermittent mode and a continuous mode.

摘要翻译： 为了提供一种电动助力转向系统的控制器，其能够通过在电动机的角速度小的范围内假定电动机角速度ω而改善转向性能，并且还非常准确地假设电动机的角速度， 完全显示了补偿电机惯性和控制车辆涩味的功能。 由于模型电动机和实际安装的电动机之间的反电动势的推测误差与电动机电流成比例，所以将具有与电动机电流成比例的宽度的电动机角速度的死区设定为 电机角速度。 当电动机电流小时，死区的宽度也减小。 因此，即使在电动机角速度小的区域中也可以设定角速度ω。 此外，通过以间歇模式和连续模式定义电机驱动系统的阻抗模型来推定电机角速度。

公开(公告)号：US07873453B2

公开(公告)日：2011-01-18

申请号：US11813887

申请日：2006-01-12

申请人： Hideyuki Kobayashi ,  Toru Sakaguchi ,  Shuji Endo ,  Atsushi Kojima

发明人： Hideyuki Kobayashi ,  Toru Sakaguchi ,  Shuji Endo ,  Atsushi Kojima

IPC分类号： A01B69/00

CPC分类号： B62D5/0472 ,  B62D5/0463 ,  B62D5/0466

摘要： The present invention provides a control apparatus for an electric power steering apparatus comprises: a steering assist command value calculating section; a current control section that calculates a voltage command value; and a motor driving section that drives a motor based on the voltage command value, wherein an assist power from the motor is applied to a steering system, the control apparatus is characterized in that an SAT measuring section, that inputs an angular speed and an angular acceleration of the motor, the steering assist command value and the torque signal therein so as to estimate an SAT, is provided, and the SAT obtained by the SAT measuring section is feedbacked to the steering assist command value via a feedback section composed of a phase compensating section and a gain section.

摘要翻译： 本发明提供一种电动助力转向装置的控制装置，包括：转向辅助指令值计算部; 电流控制部，其计算电压指令值; 以及电动机驱动部，其基于所述电压指令值驱动电动机，其中来自所述电动机的辅助动力被施加到转向系统，所述控制装置的特征在于，SAT测量部输入角速度和角度 提供电动机的加速度，转向辅助指令值和其中的转矩信号以估计SAT，并且由SAT测量部分获得的SAT通过由相位组成的反馈部分反馈到转向辅助指令值 补偿部分和增益部分。

公开(公告)号：US07394214B2

公开(公告)日：2008-07-01

申请号：US10579771

申请日：2004-11-11

申请人： Shuji Endo ,  Yuho Aoki

发明人： Shuji Endo ,  Yuho Aoki

IPC分类号： H02P7/00

CPC分类号： B62D5/046

摘要： 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.

摘要翻译： 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：US20070225885A1

公开(公告)日：2007-09-27

申请号：US11587972

申请日：2005-04-15

申请人： Takeshi Hara ,  Shuji Endo

发明人： Takeshi Hara ,  Shuji Endo

IPC分类号： G06F19/00

CPC分类号： B62D5/049

摘要： It is an object of the present invention to provide a control unit for an electric power steering apparatus for accurately detecting an abnormality of a steering angle sensor without forming the steering angle sensor as a double system or using an expensive position detection sensor. The object is achieved by calculating a relative steering angle by using inexpensive position detection sensors disposed at a motor of the electric power steering apparatus to output binary values and comparing a change amount of an absolute steering angle detected by the steering angle sensor and a change amount of the calculated relative steering angle with each other to thereby detect the abnormality of the steering angle sensor.

摘要翻译： 本发明的目的是提供一种用于电动助力转向装置的控制单元，用于在不形成作为双重系统的转向角传感器或者使用昂贵的位置检测传感器的情况下，精确地检测转向角传感器的异常。 该目的是通过使用设置在电动助力转向装置的电动机上的便宜的位置检测传感器来计算相对转向角来输出二进制值并将由转向角传感器检测的绝对转向角的变化量与变化量 计算出的相对转向角彼此相对，从而检测转向角传感器的异常。

公开(公告)号：US20070090782A1

公开(公告)日：2007-04-26

申请号：US10579969

申请日：2004-11-24

申请人： Shuji Endo ,  Yuho Aoki ,  Hideyuki Kobayashi ,  CaoMinh Ta

发明人： Shuji Endo ,  Yuho Aoki ,  Hideyuki Kobayashi ,  CaoMinh Ta

IPC分类号： H02P7/00

CPC分类号： H02P21/14 ,  B62D5/046 ,  H02P21/22

摘要： The invention relates to a control apparatus of an electric power steering apparatus structured such as to apply a steering assist force generated by a n-phase motor to a steering system of a vehicle, the control apparatus is provided with at least (n−1) numbers of current detecting means for detecting a current Im in each of phases of the motor, a current command value calculating means for outputting a current command value Imref in each of the phases, and n numbers of current control means, and the control apparatus executes a current control of each of the phases by the current control means having the current command value Imref in each of the phases and the current Im in each of the phases as an input.

摘要翻译： 本发明涉及一种电动助力转向装置的控制装置，其构造为将由n相电动机产生的转向辅助力施加到车辆的转向系统，所述控制装置至少配备有（n-1） 用于检测电动机的每个相位中的电流Im的电流检测装置的数量，用于在每个相中输出电流指令值Imref的电流指令值计算装置和n个电流控制装置，并且控制装置执行 电流控制装置对每个相位的电流进行控制，该电流控制装置在各相中具有电流指令值Imref，在每相中具有电流Im作为输入。

公开(公告)号：US20070080016A1

公开(公告)日：2007-04-12

申请号：US11605372

申请日：2006-11-29

申请人： Toshiyuki Onizuka ,  Kazuo Chikaraishi ,  Shuji Endo

发明人： Toshiyuki Onizuka ,  Kazuo Chikaraishi ,  Shuji Endo

IPC分类号： B62D5/04

CPC分类号： B62D15/0235 ,  B62D5/0409 ,  B62D5/0421 ,  B62D15/0215 ,  F16H1/16 ,  H02K7/1166 ,  H02K11/215 ,  H02K11/24

摘要： In an electric power steering apparatus that urges a steering shaft or a rack shaft with an assist load using the drive force of a motor by a transmission mechanism via reduction gears, the reduction gears includes a rotation angle sensor assembled integrally therewith.

摘要翻译： 在电动助力转向装置中，通过减速齿轮通过变速机构利用电动机的驱动力来促使转向轴或齿条轴的辅助负载，所述减速齿轮包括与其一体组装的旋转角度传感器。