公开(公告)号：US06404156B1

公开(公告)日：2002-06-11

申请号：US09598314

申请日：2000-06-21

申请人： Takahiro Okanoue ,  Takayuki Kifuku ,  Katsuya Ikemoto

发明人： Takahiro Okanoue ,  Takayuki Kifuku ,  Katsuya Ikemoto

IPC分类号： H02P700

CPC分类号： B62D5/049 ,  B62D5/0463 ,  B62D5/0484

摘要： An electric power steering equipment according to the present invention comprises a motor for providing a steering assisting force to a steering shaft, a torque detecting means for detecting a steering torque, an amplifying and phase-compensating means for amplifying and phase-compensating a detected value of the torque detecting means, and a controlling means for controlling a drive of the motor based on an output of the amplifying and phase-compensating means, wherein the controlling means restricts a control signal for driving the motor by an upper limit value and a lower limit value which are set in response to the detected value of the torque detecting means.

摘要翻译： 根据本发明的电动助力转向装置包括用于向转向轴提供转向辅助力的电动机，用于检测转向转矩的转矩检测装置，放大和相位补偿检测值的放大和相位补偿装置 以及控制装置，用于根据放大和相位补偿装置的输出来控制电动机的驱动，其中控制装置将用于驱动电动机的控制信号限制在上限值和下限值 限制值，其响应于所述扭矩检测装置的检测值而设定。

公开(公告)号：US5913913A

公开(公告)日：1999-06-22

申请号：US757828

申请日：1996-11-27

申请人： Takahiro Okanoue ,  Takayuki Kifuku ,  Shigeki Ohtagaki ,  Shunichi Wada

发明人： Takahiro Okanoue ,  Takayuki Kifuku ,  Shigeki Ohtagaki ,  Shunichi Wada

IPC分类号： B62D6/00 ,  B62D5/04 ,  G06G7/76

CPC分类号： B62D5/0463 ,  B62D5/0484

摘要： A control apparatus for a motor-driven power steering system of a motor vehicle controls the steering system such that a steering torque required to be applied by a driver is prevented from increasing abruptly or steeply even when generation of an assist torque applied to the steering system for assisting the driver in steering operation is to be stopped. The control apparatus includes an operation stop decision mechanism (111, 112, OR) for deciding whether or not an operation stop command is to be issued for stopping control operation for the motor-driven power steering system, a torque detecting mechanism (16, 113) for detecting a steering torque transmitted from an input shaft (21a) to an output shaft (21c) of a steering column (21) of the motor-driven power steering system, and an assist torque control mechanism (114, 116, 117, 118, 13) for updating an assist torque applied by an electric motor (20) to the output shaft (21c) with an assist torque control quantity determined on the basis of a detected torque value outputted from the torque detection mechanism (16, 113), wherein upon issuance of the operation stop command by the operation stop decision mechanism (111, 112, OR), the assist torque control mechanism stops application of the assist torque, provided that the detected torque value is lower than a predetermined value inclusive thereof.

摘要翻译： 用于机动车辆的电动机动力转向系统的控制装置控制转向系统，使得即使在施加到转向系统的辅助转矩的产生时也防止驾驶员施加的转向转矩突然或陡峭地增加 用于辅助驾驶员的转向操作将被停止。 控制装置包括用于判定是否要发出用于停止对电动机动力转向系统的控制操作的操作停止命令的操作停止判定机构（111,112或OR），转矩检测机构（16,113 ），用于检测从所述电动机动力转向系统的转向柱（21）的输入轴（21a）到输出轴（21c）传递的转向转矩，以及辅助转矩控制机构（114,116,117， 用于根据从转矩检测机构（16,113）输出的检测转矩值确定的辅助转矩控制量，将由电动机（20）施加的辅助转矩更新到输出轴（21c） 其特征在于，在由所述动作停止判定机构（111,112，或OR）发出动作停止命令的情况下，辅助转矩控制机构停止施加辅助转矩，只要所述检测转矩值低于规定值 ve。

公开(公告)号：US06272410B1

公开(公告)日：2001-08-07

申请号：US09271294

申请日：1999-03-17

申请人： Takahiro Okanoue ,  Takayuki Kifuku

发明人： Takahiro Okanoue ,  Takayuki Kifuku

IPC分类号： B62D100

摘要： To keep low the cross frequency of current feedback control and provide a good steering feeling, a first operation expression is selected when a difference &xgr; between a current instruction value computed based on a steering state of a steering wheel and a traveling state of a vehicle and a motor drive current value supplied from a battery to a motor for providing assist force to a system for transmitting power from the steering wheel to the wheels is larger than a predetermined value Th1, a second operation expression is selected when the difference &xgr; is smaller than the predetermined value Th1, and the difference &xgr; is corrected using the selected operation expression.

公开(公告)号：US09016123B2

公开(公告)日：2015-04-28

申请号：US13372108

申请日：2012-02-13

申请人： Yoshihiko Kimpara ,  Yasuaki Hori ,  Tatsuya Mori ,  Takayuki Kifuku ,  Takahiro Okanoue

发明人： Yoshihiko Kimpara ,  Yasuaki Hori ,  Tatsuya Mori ,  Takayuki Kifuku ,  Takahiro Okanoue

IPC分类号： G01P3/44 ,  H02P7/32 ,  G06F19/00 ,  G06F17/40 ,  G01D5/20

CPC分类号： G01D5/2073

摘要： In an angle detection method with a resolver, the method being for detecting a rotational angle of a rotator by synchronously detecting a first signal and a second signal that are two phase sine wave modulation signals obtained from a one phase excitation/two phase output resolver, the method includes: a first signal detection process which detects a signal in the order of the first signal and the second signal; and a second signal detection process which detects a signal in the order of the second signal and the first signal.

摘要翻译： 在具有分解器的角度检测方法中，该方法用于通过同步检测从一相激励/两相输出解算器获得的两相正弦波调制信号的第一信号和第二信号来检测转子的旋转角度， 该方法包括：第一信号检测处理，以第一信号和第二信号的顺序检测信号; 以及第二信号检测处理，其以第二信号和第一信号的顺序检测信号。

公开(公告)号：US08789645B2

公开(公告)日：2014-07-29

申请号：US13269066

申请日：2011-10-07

申请人： Yasuhiro Kawanaka ,  Takahiro Okanoue

发明人： Yasuhiro Kawanaka ,  Takahiro Okanoue

IPC分类号： B62D5/04

CPC分类号： B62D5/046 ,  B62D5/0463 ,  B62D5/0481 ,  B62D5/0484 ,  B62D5/0487

摘要： An electric power steering device includes: a fail-safe power relay (9a) and a motor relay (10a) for interrupting power supply to an electric-motor driving unit for driving an electric motor for applying an assist torque for steering performed by a driver; and a relay driving circuit (8a) including a switch (13a) connected in parallel to drive coils of the relays (9a and 10a) and a diode (16a). A target value of a relay-contact energizing current is lowered and the relays (9a and 10a) are gradually interrupted while an amount of current corresponding to a back surge generated when the relays are turned OFF is caused to flow back to the diode (16a) of the relay driving circuit (8a) in a normal relay-OFF operation, whereas the relays (9a and 10a) are quickly interrupted without operating the relay driving circuit (8a) in case of detection of an abnormality.

摘要翻译： 一种电动助力转向装置包括：故障保护动力继电器（9a）和电动机继电器（10a），用于中断对电动机驱动单元的供电，用于驱动电动机，用于施加驾驶员执行的转向辅助转矩 ; 以及包括与所述继电器（9a和10a）的驱动线圈并联连接的开关（13a）和二极管（16a）的继电器驱动电路（8a）。 继电器触点通电电流的目标值降低，并且继电器（9a和10a）逐渐中断，同时使与继电器断开时产生的反向电涌相对应的电流量流回到二极管（16a ），而在检测到异常的情况下，继电器（9a和10a）在不操作继电器驱动电路（8a）的情况下快速中断。