公开(公告)号：US5414627A

公开(公告)日：1995-05-09

申请号：US103914

申请日：1993-08-10

申请人： Shunichi Wada ,  Kazuhisa Nisino ,  Yasushi Sasaki

发明人： Shunichi Wada ,  Kazuhisa Nisino ,  Yasushi Sasaki

IPC分类号： B62D5/04 ,  B62D6/00 ,  B62D6/02 ,  B62D101/00 ,  B62D119/00

CPC分类号： B62D5/0478 ,  B62D5/0463

摘要： An electric power steering control device includes a motor controller for controlling an electric motor providing the assisting steering torque; and a clutch controller for controlling an electromagnetic clutch selectively connecting the assisting steering torque of the motor to the steering system. The degree of engagement (connection) of the clutch corresponds to the clutch current command level I.sub.C. When the vehicle speed is above a predetermined speed V.sub.0 (i.e., during high speed driving), the clutch current I.sub.C is set at a predetermined half current level I.sub.CR. During low vehicle speeds below V.sub.0, the clutch current I.sub.C is gradually decreased to the half current level I.sub.CR as the vehicle speed increases to V.sub.0. When the steering torque T is above a first predetermined level T1 indicative of an abnormality during high speed operation, the clutch current I.sub.C is set at a minimal level I.sub.CO. The steering torque T is returned to the half current level I.sub.CR when it is below a second predetermined level T2 smaller than the first level T1, thereby avoiding steering torque hunting.

摘要翻译： 电动助力转向控制装置包括：电动机控制器，用于控制提供辅助转向转矩的电动机; 以及用于控制电磁离合器的离合器控制器，其选择性地将马达的辅助转向扭矩连接到转向系统。 离合器的接合度（连接）对应于离合器电流指令级IC。 当车速超过预定速度V0（即，在高速行驶期间）时，将离合器电流IC设定为预定的半电流水平ICR。 在低于V0的低车速下，当车速增加到V0时，离合器电流IC逐渐降低到半电流水平ICR。 当转向转矩T高于表示高速运转时的异常的第一规定电平T1时，将离合器电流IC设定为最低电平ICO。 当转向转矩T低于小于第一电平T1的第二预定电平T2时，转向转矩T返回到半电流电平ICR，从而避免了转向转矩的旋转。

公开(公告)号：US06262547B1

公开(公告)日：2001-07-17

申请号：US09000838

申请日：1997-12-30

申请人： Takayuki Kifuku ,  Shunichi Wada

发明人： Takayuki Kifuku ,  Shunichi Wada

IPC分类号： H02P700

CPC分类号： B62D5/0466 ,  B62D5/046

摘要： A motor-driven power steering apparatus comprises: a torque sensor for detecting a steering torque; an assist indicator for outputting an indication signal which indicates the direction and magnitude of an output torque of a motor power-assisting a steering mechanism; a dither signal generator for outputting a high-frequency dither signal; and a control circuit for controlling a current supplied to the motor according to the indication signal provided by the assist indicator and the dither signal provided by the dither signal generator.

摘要翻译： 一种电动助力转向装置，包括：用于检测转向转矩的转矩传感器; 用于输出指示信号的辅助指示器，所述指示信号指示用于辅助转向机构的电动机的输出扭矩的方向和大小; 用于输出高频抖动信号的抖动信号发生器; 以及控制电路，用于根据由辅助指示器提供的指示信号和由抖动信号发生器提供的抖动信号来控制提供给电动机的电流。

公开(公告)号：US5552684A

公开(公告)日：1996-09-03

申请号：US281635

申请日：1994-07-28

申请人： Shunichi Wada ,  Masanori Takagi

发明人： Shunichi Wada ,  Masanori Takagi

IPC分类号： B62D5/04 ,  H02P7/29 ,  H02P1/00

CPC分类号： B62D5/0493 ,  B62D5/0487

摘要： A motor-driven power steering control system of a motor vehicle for assisting a driver in manipulating a steering wheel by making use of an assist torque generated by a reversible motor which is operatively coupled to a steering mechanism of the motor vehicle includes an electric reversible motor mechanically coupled to a steering system of the motor vehicle through an electromagnetic clutch, a motor drive circuit, an H-bridge switching driver circuit for driving the electric reversible motor in forward or reverse direction under the control of the motor drive circuit, and a clutch control circuit for controlling the electromagnetic clutch. A motor voltage detection circuit for detecting terminal voltages at both terminals of the electric reversible motor is provided for generating a voltage signal of high level and subsequently a fail-safe signal of a low level on the basis of the high-level voltage signal when both of the terminal voltages are approximately zero, while generating a voltage signal of a low level and subsequently a fail-safe signal of high level on the basis of the low-level voltage signal unless both of the terminal voltages are approximately zero. A switch is connected between an electric power source and the switching drive circuit and the clutch control circuit. A microcomputer fetches the fail-safe signal from the motor voltage detection circuit to thereby open the switch for interrupting the power supply to the reversible motor and the clutch control circuit when the fail-safe signal is at the low level.

摘要翻译： 一种机动车辆的电动机动力转向控制系统，用于通过利用可操作地联接到机动车辆的转向机构的可逆电机产生的辅助转矩来辅助驾驶员操纵方向盘，该系统包括电动可逆电动机 通过电磁离合器机械地联接到机动车辆的转向系统，马达驱动电路，用于在马达驱动电路的控制下沿正向或反向驱动电动可逆马达的H桥开关驱动电路，以及离合器 用于控制电磁离合器的控制电路。 用于检测电可逆电动机两端的端电压的电动机电压检测电路用于根据高电平电压信号产生高电平的电压信号，随后产生低电平的故障安全信号 的端子电压近似为零，同时基于低电平电压信号产生低电平的电压信号，随后产生高电平的故障安全信号，除非两个端子电压都近似为零。 开关连接在电源与开关驱动电路和离合器控制电路之间。 微型计算机从电动机电压检测电路取出故障安全信号，从而当故障安全信号处于低电平时，打开用于中断向可逆电动机和离合器控制电路供电的开关。

公开(公告)号：US5299650A

公开(公告)日：1994-04-05

申请号：US945405

申请日：1992-09-16

申请人： Shunichi Wada ,  Yasuo Naito

发明人： Shunichi Wada ,  Yasuo Naito

IPC分类号： B62D5/04 ,  B62D6/00 ,  B62D6/02 ,  B62D101/00 ,  B62D117/00 ,  B62D119/00 ,  B62D137/00

CPC分类号： B62D5/0478 ,  B62D5/0436 ,  B62D5/0484

摘要： A motor-driven power steering apparatus and method for a vehicle are able to avoid frequent on-off operations of an electromagnetic clutch 14 as much as possible, which connects or disconnects a motor 13 with or from a steering system, thus improving the durability of the clutch 14 and suppressing the generation of undesirable noise and shocks upon connection and disconnection of the clutch 14. The motor 13 is deenergized by a motor controller 191 when the vehicle speed V is equal to or greater than a predetermined value Vo. The clutch 14 is turned off to disconnect the motor from the steering system when an abnormality in the steering system is determined during high speed travel of the vehicle. Such an abnormality is determined if the motor current flowing through the deenergized motor is not equal to zero, or if the steering torque is equal to or greater than a predetermined value and a voltage across the motor when deenergized is equal to zero, or if the rotational speed of the steering wheel is equal to or greater than a predetermined value and the motor voltage is equal to zero.

摘要翻译： 一种用于车辆的马达驱动的动力转向装置和方法能够尽可能地避免电磁离合器14的频繁的断开操作，其将马达13与转向系统连接或断开，从而提高了电动离合器14的耐久性 离合器14，并且在离合器14的连接和断开时抑制不期望的噪音和冲击的产生。当车速V等于或大于预定值Vo时，马达13由马达控制器191断电。 当在车辆的高速行驶期间确定转向系统的异常时，离合器14被关闭以将电动机与转向系统断开。 如果流过断电电动机的电动机电流不等于零，或者如果转向转矩等于或大于预定值，并且当断电时电动机两端的电压等于零时，则确定这种异常，或者如果 方向盘的转速等于或大于预定值，电动机电压等于零。

公开(公告)号：US5173858A

公开(公告)日：1992-12-22

申请号：US629770

申请日：1990-12-18

申请人： Shunichi Wada ,  Yoshihiro Tsuda

发明人： Shunichi Wada ,  Yoshihiro Tsuda

IPC分类号： B60G17/015 ,  B60G17/0165

CPC分类号： B60G17/0165 ,  B60G2204/81 ,  B60G2204/82 ,  B60G2400/102 ,  B60G2400/204 ,  B60G2400/821 ,  B60G2500/10 ,  B60G2500/22 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/04 ,  B60G2600/14 ,  B60G2800/16 ,  B60G2800/162 ,  B60G2800/22 ,  B60G2800/916

摘要： A suspension control system for enhancing the response characteristic of a vehicle body vibration suppressing control by lowering the spring constant or the damping force to a first desired level for both front and rear wheels at a time or only the rear wheel for a predetermined time in accordance with a differential value of an output signal from an acceleration detecting means in the vertical direction of the vehicle body, to thereby soften the shock of the vehicle body when the rear wheels get over a protuberance, and also by changing the spring constant or the damping force settled beforehand to a second desired level for both front and rear wheels at a time in case an unnecessary vibration of the vehicle body is detected afterwards. The second desired level is held for a predetermined time or continuously to suppress vertical vibrations of the vehicle body.

摘要翻译： 一种悬架控制系统，用于通过将时间上的前轮和后轮的弹簧常数或阻尼力降低至第一期望水平，或者仅根据后轮预定的时间来提高车身振动抑制控制的响应特性 具有来自加速度检测装置的输出信号在车体的垂直方向上的差分值，从而当后轮越过突起时软化车体的冲击，并且还通过改变弹簧常数或阻尼 在之后检测到车体的不必要的振动的情况下，预先将力预先设定在前轮和后轮的第二期望水平上。 第二期望水平保持预定时间或连续地抑制车身的垂直振动。

公开(公告)号：US5159555A

公开(公告)日：1992-10-27

申请号：US511693

申请日：1990-04-20

申请人： Shunichi Wada

发明人： Shunichi Wada

IPC分类号： B60G17/015 ,  B60G17/018 ,  B60G23/00

CPC分类号： B60G17/0182 ,  B60G2202/135 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/33 ,  B60G2400/44 ,  B60G2400/91 ,  B60G2500/102 ,  B60G2500/20 ,  B60G2600/90 ,  Y10S706/90

摘要： A control apparatus for support unit of vehicle, wherein a physical quantity which affects characteristics of a support unit for supporting a vehicle body such as a suspension or stabilizer and a state quantity which shows movement of the body or support unit are detected. The similarity corresponding to the detected physical quantity and state quantity is calculated using fuzzy logic, request indexes of comfort to ride and operation stability are calculated from the similarity. The request indexes are composed to obtain the center of gravity, so as to judge the most optimum characteristics of the support unit. This control apparatus automatically substantially analoguely judges whether either of the comfort to ride or the operation stability should be prioritized.

摘要翻译： 一种用于车辆支撑单元的控制装置，其中检测影响用于支撑诸如悬架或稳定器的车体的支撑单元的特性的物理量和示出主体或支撑单元的移动的状态量。 使用模糊逻辑计算与检测到的物理量和状态量相对应的相似度，从相似性计算乘坐舒适度和操作稳定性的请求索引。 组成请求索引以获得重心，以便判断支持单元的最佳特性。 该控制装置自动地基本模拟地判断是否优先考虑乘坐舒适性或操作稳定性。

公开(公告)号：US5138554A

公开(公告)日：1992-08-11

申请号：US504516

申请日：1990-04-04

申请人： Shunichi Wada

发明人： Shunichi Wada

IPC分类号： B60G17/015 ,  B60G17/018

CPC分类号： B60G17/0182 ,  B60G2202/10 ,  B60G2202/135 ,  B60G2202/20 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/34 ,  B60G2400/44 ,  B60G2400/91 ,  B60G2500/102 ,  B60G2500/20 ,  B60G2600/90 ,  Y10S706/90

摘要： In the suspension controller of the present invention, there is provided a suspension or stabilizer characteristic change-over determining device whereby a damping force or a spring constant of a suspension or a torsional force of a stabilizer is calculated from a degree of similarity corresponding to a physical amount which exerts influence on the suspension or stabilizer characteristics and a state amount, using fuzzy logic, and when it is enhanced, this enhanced state of the suspension or the stabilizer is maintained for a set time. If during this period a set value of the damping force or the spring constant or the torsional force corresponding to the output which is responsive to the degree of similarity indicates a rather low state for a predetermined time or longer, the value of the damping force or the spring constant or the torsional force is set low and this state is maintained for a set time. There is also provided a suspension or stabilizer characteristic change-over operating device which is controlled by the change-over determining device and controls the characteristics of the suspension or the stabilizer in a variable manner.

摘要翻译： 在本发明的悬架控制器中，提供一种悬架或稳定器特性转换确定装置，其中由相对应的相似程度计算稳定器的悬架或扭转力的阻尼力或弹簧常数 使用模糊逻辑对悬架或稳定器特性和状态量施加影响的物理量，并且当增强时，悬架或稳定器的这种增强状态保持一段固定时间。 如果在此期间，响应于相似度的阻尼力或弹簧常数或对应于输出的扭转力的设定值表示预定时间或更长时间的相当低的状态，则阻尼力或 弹簧常数或扭转力被设定为低，并且该状态保持一定的时间。 还提供了由转换确定装置控制的悬架或稳定器特性转换操作装置，并以可变的方式控制悬架或稳定器的特性。

公开(公告)号：US5101355A

公开(公告)日：1992-03-31

申请号：US529302

申请日：1990-05-29

申请人： Shunichi Wada ,  Yoshihiro Tsuda

发明人： Shunichi Wada ,  Yoshihiro Tsuda

IPC分类号： B60G17/015 ,  B60G17/018 ,  B60G21/055

CPC分类号： B60G17/018 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/206 ,  B60G2400/412 ,  B60G2400/60 ,  B60G2400/91 ,  B60G2500/10 ,  B60G2500/22 ,  B60G2600/04 ,  B60G2600/18

摘要： A control apparatus which detects vertical and/or lateral vibrations of a vehicle body and controls, on the basis of amplitude and frequency of vibration, a characteristic of a support unit for supporting the vehicle body, such as, a damping force and a spring force of suspension or torsion quantity of a stabilizer. The control apparatus, when the detected vibration is high frequency vibration, obtains the frequency of vibration by a measured value of one cycle period, and, when the detected vibration is low frequency vibration, obtains the frequency of vibration by a measured value of a half cycle period.

摘要翻译： 一种检测车体的垂直和/或横向振动的控制装置，并且基于振动的振幅和频率来控制用于支撑车体的支撑单元的特性，例如阻尼力和弹簧力 的稳定剂的悬浮或扭转量。 控制装置当检测到的振动是高频振动时，通过一个周期的测量值来获得振动频率，并且当检测到的振动是低频振动时，将振动频率获得一半的测量值 循环周期。

公开(公告)号：US4392385A

公开(公告)日：1983-07-12

申请号：US185387

申请日：1980-09-08

申请人： Kuniteru Okuda ,  Teruki Fukami ,  Yoshiaki Asayama ,  Shunichi Wada ,  Masami Kabuto

发明人： Kuniteru Okuda ,  Teruki Fukami ,  Yoshiaki Asayama ,  Shunichi Wada ,  Masami Kabuto

IPC分类号： G01F1/32 ,  G01P5/01

CPC分类号： G01F1/3281 ,  G01P5/01

摘要： A fluid conduit with a rectangular cross-section is divided into two parallel conduits. A vortex generating rod is disposed perpendicularly to the flow direction in one of the conduits. An ultrasonic wave is directed perpendicularly across the conduit to detect the Karman vortex streets. A sound absorbing material is located along the portion of the conduit wall where the ultrasonic waves exist for preventing the formation of standing waves.

摘要翻译： 具有矩形横截面的流体导管分成两个平行的导管。 在一个管道中垂直于流动方向设置涡流产生杆。 超声波垂直穿过导管，以检测卡门涡街。 吸音材料位于导管壁的存在超声波的部分，以防止形成驻波。

公开(公告)号：US06490514B2

公开(公告)日：2002-12-03

申请号：US09773386

申请日：2001-02-01

申请人： Masahiko Kurishige ,  Noriyuki Inoue ,  Toshihide Satake ,  Takayuki Kifuku ,  Shunichi Wada

发明人： Masahiko Kurishige ,  Noriyuki Inoue ,  Toshihide Satake ,  Takayuki Kifuku ,  Shunichi Wada

IPC分类号： B62D600

CPC分类号： B62D5/0466

摘要： A power steering control system is provided with a road surface reaction torque detector in which a motor inertia torque is subtracted from a value obtained by adding steering torque and motor torque, and the value is passed through two stages of primary filters to obtain a road surface reaction torque. In such a computation, the inertia term of the steering wheel manipulation force does not depend on frequency and high frequency components do not bring about any unusually large steering wheel return force. Therefore, a driver can drive without difficulty in adapting to the power steering.

摘要翻译： 动力转向控制系统设置有路面反作用转矩检测器，其中从通过增加转向转矩和电动机转矩获得的值中减去电动机惯性转矩，并且该值通过两级初级过滤器以获得路面 反应转矩。 在这种计算中，方向盘操纵力的惯性项不依赖于频率，而高频分量不会产生任何异常大的方向盘返回力。 因此，驾驶员可以无障碍地驾驶适应动力转向。