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91. 发明授权

US06694237B2 Steering control device 有权
标题翻译：转向控制装置
公开(公告)号：US06694237B2
公开(公告)日：2004-02-17
申请号：US10121622
申请日：2002-04-15
申请人： Takayuki Kifuku , Munenori Yamamoto
发明人： Takayuki Kifuku , Munenori Yamamoto
IPC分类号： B62D500
CPC分类号： B62D5/0469
摘要： A steering control device is provided, which comprises a motor driving circuit for driving a motor and a microprocessor for supplying an applied voltage signal, which is found based on a motor current detection value detected by a motor current detecting unit, a motor voltage detection value detected by a motor voltage detecting unit, a steering torque detected by a torque sensor and a vehicle speed detected by a vehicle speed sensor, to the motor driving circuit such that the motor driving circuit increases or decreases the motor current according to an average value of motor current detection values over a time period and increases or decreases the motor current by detecting that a steering is in the vicinity of a maximum steering angle based on the detected steering torque.
摘要翻译：提供了一种转向控制装置，其包括用于驱动电动机的电动机驱动电路和用于提供施加的电压信号的微处理器，其基于由电动机电流检测单元检测的电动机电流检测值，电动机电压检测值由电动机电压检测单元检测到的，由转矩传感器检测的转向转矩和由车速传感器检测的车速的电动机驱动电路，使得电动机驱动电路根据平均值增加或减少电动机电流电动机电流检测值，并且通过基于检测到的转向转矩检测到转向处于最大转向角附近来增大或减小电动机电流。

92. 发明授权

US06600983B2 Steering control apparatus 有权
公开(公告)号：US06600983B2
公开(公告)日：2003-07-29
申请号：US09839839
申请日：2001-04-24
申请人： Takayuki Kifuku
发明人： Takayuki Kifuku
IPC分类号： B62D504
CPC分类号： B62D5/046
摘要： A steering control apparatus includes a first power supply, a second power supply for outputting a voltage lower than the voltage of the first power supply, a motor for generating an auxiliary steering power, a controller for controlling the motor, and a driver for driving the motor in response to the output of the controller, wherein power is supplied from the first power supply to the driver and that power is supplied from the second power supply to the controller.

93. 发明授权

US06522097B2 Position detecting apparatus and abnormality detecting apparatus 有权
标题翻译：位置检测装置和异常检测装置
公开(公告)号：US06522097B2
公开(公告)日：2003-02-18
申请号：US09985861
申请日：2001-11-06
申请人： Chiaki Fujimoto , Masaki Matsushita , Takayuki Kifuku
发明人： Chiaki Fujimoto , Masaki Matsushita , Takayuki Kifuku
IPC分类号： G05B1931
CPC分类号： H02P6/16 , H02P29/02
摘要： A position detecting apparatus includes: a position sensor 10 that inputs an excitation signal having a given period waveform and outputs a first amplitude modified signal induced in accordance with a detected position from a first output winding and outputs a second amplitude modified signal induced in accordance with a detected position from a second output winding; a first phase shifting circuit 23 for electrically shifting a phase of the first amplitude modified signal by a given angle; a second phase shifting circuit 24 for electrically shifting a phase of the second amplitude modified signal by a given angle; converting means 15,16 for converting the signal outputted from the first phase shifting circuit 23 and the signal outputted from the second phase shifting circuit 24 into a phase modulated signal; and calculating means 17-22 for obtaining a detected position on the basis of the phase of the phase modulated signal outputted from the converting means 15,16.
摘要翻译：位置检测装置包括：位置传感器10，其输入具有给定周期波形的激励信号，并输出根据来自第一输出绕组的检测位置感应的第一幅度修正信号，并输出根据来自第二输出绕组的检测位置; 第一移相电路23，用于将第一幅度修正信号的相位电移位给定的角度; 第二移相电路24，用于将第二幅度修正信号的相位电移位给定角度; 用于将从第一移相电路23输出的信号和从第二移相电路24输出的信号转换为相位调制信号的转换装置15,16; 以及计算装置17-22，用于根据从转换装置15,16输出的相位调制信号的相位获得检测位置。

94. 发明授权

US06450287B1 Electric power steering controller and control method thereof 有权
标题翻译：电动助力转向控制器及其控制方法
公开(公告)号：US06450287B1
公开(公告)日：2002-09-17
申请号：US09604289
申请日：2000-06-26
申请人： Masahiko Kurishige , Noriyuki Inoue , Ryoji Nishiyama , Takayuki Kifuku , Shunichi Wada
发明人： Masahiko Kurishige , Noriyuki Inoue , Ryoji Nishiyama , Takayuki Kifuku , Shunichi Wada
IPC分类号： B62D506
CPC分类号： B62D5/0466
摘要： An electric power steering controller including a motor for generating torque for assisting the steering torque of a driver to assist the steering force of a steering system. The controller includes a road reaction torque detector for detecting road reaction torque received by tires from the surface of a road, and a road detection torque addition control for controlling the torque of the motor based on the road reaction torque. The electric power steering controller enables the steering wheel to be returned to its starting point without adding torque in a direction in which the driver returns the steering wheel when the driver contgrols the steering wheel with the small road reaction torque of the tires, for example, when turning at an intersection at a low speed or when turning at a gently curved portion of a road at a high speed.
摘要翻译：一种电动助力转向控制器，包括用于产生用于辅助驾驶员的转向扭矩以帮助转向系统的转向力的转矩的电动机。该控制器包括：道路反作用转矩检测器，用于检测来自道路表面的轮胎接收到的道路反作用扭矩;以及道路检测转矩附加控制，用于基于道路反作用转矩来控制电动机的转矩。电动助力转向控制器使得方向盘能够在驾驶员以轮胎的小的道路反作用扭矩阻止方向盘的情况下将方向盘返回到起点，而不会在驾驶员返回方向盘的方向上增加扭矩，例如，当在交叉点以低速转动或者在高速的道路的轻柔弯曲部分转动时。

95. 发明授权

US06404156B1 Electric power steering equipment 有权
标题翻译：电动助力转向设备
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。

96. 发明授权

US06246197B1 Electric power steering controller 失效
标题翻译：电动助力转向控制器
公开(公告)号：US06246197B1
公开(公告)日：2001-06-12
申请号：US09044349
申请日：1998-03-19
申请人： Masahiko Kurishige , Noriyuki Inoue , Takayuki Kifuku , Munenori Yamamoto , Shunichi Wada
发明人： Masahiko Kurishige , Noriyuki Inoue , Takayuki Kifuku , Munenori Yamamoto , Shunichi Wada
IPC分类号： H02P700
CPC分类号： B62D5/046
摘要： To estimate the rotation speed of the motor for assisting a steering torque regardless of the running state of a vehicle with accuracy, an application voltage estimation value obtained by subtracting a correction voltage obtained based on a detection current value detected by current detection means from the inter-terminal voltage measurement value of the motor is output and the rotation speed of the motor is estimated based on this application voltage estimation value and the detection current value.
摘要翻译：为了估计用于辅助转向转矩的电动机的转速，而不管车辆的行驶状态如何，其施加电压估计值是通过减去从电流检测装置检测到的检测电流值获得的校正电压而获得的，输出电动机的端子电压测量值，并根据该施加电压估计值和检测电流值来估计电动机的转速。

97. 发明授权

US6161068A Electric power steering control system 有权
标题翻译：电动助力转向控制系统
公开(公告)号：US6161068A
公开(公告)日：2000-12-12
申请号：US340385
申请日：1999-06-28
申请人： Masahiko Kurishige , Noriyuki Inoue , Takayuki Kifuku , Susumu Zeniya
发明人： Masahiko Kurishige , Noriyuki Inoue , Takayuki Kifuku , Susumu Zeniya
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00 , B62D137/00
CPC分类号： B62D5/0463 , B62D5/0472
摘要： An electric power steering control system reducing steering torque without making a driver feel uncomfortable torque oscillation, including a rotation speed observer for estimating the rotation speed of a motor based on the output of a torque sensor high pass filter (HPF) and the output of a drive current HPF obtained by removing a steering frequency component from a drive current detection value.
摘要翻译：一种电动助力转向控制系统，在不使驾驶员感到不舒适的扭矩振动的情况下，减小转向转矩，包括基于转矩传感器高通滤波器（HPF）的输出来估计电动机的转速的转速观测器，通过从驱动电流检测值中去除转向频率分量而获得的驱动电流HPF。

98. 发明授权

US06107926A Load short-circuit failure detection method and apparatus and electric power steering device 失效
标题翻译：负载短路故障检测方法及装置及电动助力转向装置
公开(公告)号：US06107926A
公开(公告)日：2000-08-22
申请号：US934772
申请日：1997-09-22
申请人： Takayuki Kifuku , Shunichi Wada
发明人： Takayuki Kifuku , Shunichi Wada
IPC分类号： B62D5/04 , H02H3/093 , H02H7/08 , H02P7/29 , G08B21/00
CPC分类号： B62D5/0487
摘要： A load short-circuit failure detection apparatus comprises load current drive means 8, load current control means 7, load current detection means 6 and load short-circuit failure judging means 9 and judges that a short-circuit failure occurs in a load when a state in which a load current detection value exceeds a predetermined value within a first predetermined time continues for a second predetermined time so that the load drive means can be protected, a short-circuit failure of the load can be detected, and the erroneous detection of a short-circuit failure caused by a transient overcurrent can be prevented.
摘要翻译：负载短路故障检测装置包括负载电流驱动装置8，负载电流控制装置7，负载电流检测装置6和负载短路故障判定装置9，并且当状态为负载时判断在负载中发生短路故障其中负载电流检测值在第一预定时间内超过预定值持续第二预定时间，从而可以保护负载驱动装置，可以检测负载的短路故障，并且检测到可以防止由瞬态过电流引起的短路故障。

99. 发明授权

US6029767A Electric power steering system 失效
标题翻译：电动助力转向系统
公开(公告)号：US6029767A
公开(公告)日：2000-02-29
申请号：US70768
申请日：1998-05-01
申请人： Takayuki Kifuku
发明人： Takayuki Kifuku
IPC分类号： B62D6/00 , B62D5/04 , B62D119/00 , B62D137/00
CPC分类号： B62D5/049 , B62D5/0484
摘要： When a motor terminal voltage detector circuit fails, it is impossible to calculate a motor angular speed estimate, so a current is supplied to a steering-assist motor regardless of a driver's steering state, thus leading to abnormality in control of the steering force due to an electric power steering system. According to a first motor target current which is determined on the basis of a detected driver's steering force value and a second motor target current which is determined on the basis of a counter electromotive voltage across the motor, a third motor target current to be supplied to the motor is determined, and also an upper limit is set for the second or third target current. Also, failure of circuits necessary for calculating a counter electromotive voltage across the motor is detected.
摘要翻译：当电动机端子电压检测器电路发生故障时，不可能计算电动机角速度估计值，因此无论驾驶员的转向状态如何，向转向辅助电动机提供电流，从而导致由于电动助力转向系统。根据基于检测到的驾驶员转向力值确定的第一电动机目标电流和基于电动机两端的反电动势来确定的第二电动机目标电流，提供给第三电动机目标电流确定电动机，并且还设定第二或第三目标电流的上限。此外，检测到用于计算电动机两端的反电动势电压所需的电路故障。

100. 发明授权

US5913913A Control apparatus for motor-driven power steering system of motor vehicle 失效
标题翻译：机动车用电动助力转向系统的控制装置
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。

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