公开(公告)号：US4637483A

公开(公告)日：1987-01-20

申请号：US800724

申请日：1985-11-22

申请人： Kunihiko Eto ,  Shigeo Iwashita ,  Tsutomu Matsumoto

发明人： Kunihiko Eto ,  Shigeo Iwashita ,  Tsutomu Matsumoto

IPC分类号： B62D6/00 ,  B62D5/06

CPC分类号： B62D6/00

摘要： A steering characteristic controller for a power steering system of the type that an actuator operable in response to an electric current thereto varies the characteristic of a assisting power generated by a power steering gear. The controller includes a signal converter responsive to a signal from a vehicle speed sensor for converting the vehicle speed signal into a voltage signal corresponding thereto and a drive circuit connected to the actuator for driving the same in response to the voltage signal from the signal converter. The controller further includes a gain adjuster, which varies the output gain of the voltage signal from the signal converter in correspondence to the magnitude of a signal from a vehicle load sensor.

摘要翻译： 一种用于动力转向系统的转向特性控制器，其能够响应于其电流而可操作的致动器改变由动力转向装置产生的辅助动力的特性。 控制器包括响应于来自车速传感器的信号的信号转换器，用于将车速信号转换为与其对应的电压信号，以及连接到致动器的驱动电路，用于响应于来自信号转换器的电压信号而驱动该驱动电路。 控制器还包括增益调节器，其对应于来自车辆负载传感器的信号的幅度改变来自信号转换器的电压信号的输出增益。

公开(公告)号：US4653601A

公开(公告)日：1987-03-31

申请号：US813834

申请日：1985-12-27

申请人： Keiichi Nakamura ,  Kunihiko Eto ,  Mikio Suzuki ,  Masaaki Hayashi ,  Shigeo Iwashita

发明人： Keiichi Nakamura ,  Kunihiko Eto ,  Mikio Suzuki ,  Masaaki Hayashi ,  Shigeo Iwashita

IPC分类号： B62D5/04

CPC分类号： B62D5/0457 ,  B62D5/0475

摘要： In an electric power steering system, a d.c. motor is drivingly connected to a steering shaft with a steering for generating an assisting power to rotate the steering shaft. Independently of an alternator for charging a battery, a d.c. generator driven by a vehicle engine is dedicated for supplying an electric power to the d.c. motor. A control circuit is responsive to a signal representing a manual torque applied to the steering and reads out one of objective values from a memory. The control circuit is further responsive to a fed-back signal indicative of a load applied to the d.c. motor and controls electric current flowing across a field coil of the d.c. generator in such a manner that the difference between the read-out objective value and the fed-back signal becomes zero.

摘要翻译： 在电动助力转向系统中， 马达驱动地连接到具有用于产生辅助动力以转动转向轴的转向的转向轴。 独立于用于对电池充电的交流发电机，直流 由车辆发动机驱动的发电机专用于向直流电供应电力。 发动机。 控制电路响应于表示施加到转向的手动转矩的信号，并从存储器中读出一个目标值。 控制电路进一步响应于反馈信号，该反馈信号指示施加到直流电的负载。 电动机并控制流过直流电场的励磁线圈的电流。 发生器以读出目标值和反馈信号之间的差成为零的方式。

公开(公告)号：US4858134A

公开(公告)日：1989-08-15

申请号：US98185

申请日：1987-09-18

申请人： Kunihiko Eto ,  Shiro Takeuchi ,  Yutaka Mori ,  Shigeo Tanooka ,  Kazumasa Kodama ,  Tsutomu Matsumoto

发明人： Kunihiko Eto ,  Shiro Takeuchi ,  Yutaka Mori ,  Shigeo Tanooka ,  Kazumasa Kodama ,  Tsutomu Matsumoto

IPC分类号： B62D6/02 ,  B62D6/00 ,  B62D113/00 ,  B62D127/00

CPC分类号： B62D6/00

摘要： There is disclosed a device for controlling steering force in a power steering apparatus having an electromagnetic control valve according to road and driving conditions. The device includes a car speed sensor, a steering angle sensor, first arithmetic means, second arithmetic means, correcting means, control current arithmetic means and controlling means. The first arithmetic means computes a driving condition index by using car speed information. The second arithmetic means computes a road condition index by using steering angle signals. The correcting means converts the driving condition index into a correction driving condition index which takes any one of several stepwise-varied values. The control current arithmetic means computes an output control current value applied to electromagnetic control valve by the controlling means. The device further includes means for detecting lateral acceleration utilized for controlling the steering force.

摘要翻译： 公开了一种用于在具有根据道路和驾驶条件的电磁控制阀的动力转向装置中控制转向力的装置。 该装置包括车速传感器，转向角传感器，第一运算装置，第二算术装置，校正装置，控制电流运算装置和控制装置。 第一算术装置通过使用车速信息来计算驾驶条件指数。 第二运算装置通过使用转向角信号来计算道路状况指标。 校正装置将驾驶条件指数转换为采用几个逐步变化值中的任何一个的校正驱动条件指数。 控制电流运算装置计算由控制装置施加到电磁控制阀的输出控制电流值。 该装置还包括用于检测用于控制转向力的横向加速度的装置。

公开(公告)号：US4751649A

公开(公告)日：1988-06-14

申请号：US867921

申请日：1986-05-29

申请人： Kunihiko Eto ,  Yutaka Mori ,  Akihiro Oono ,  Sadamu Kato ,  Hideo Mizoguchi

发明人： Kunihiko Eto ,  Yutaka Mori ,  Akihiro Oono ,  Sadamu Kato ,  Hideo Mizoguchi

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B62D6/00 ,  B62D101/00 ,  B62D113/00 ,  G01C21/00 ,  G08G1/00 ,  B62D5/06 ,  B62D6/02

CPC分类号： B60G17/016 ,  B62D6/00

摘要： A motor vehicle is provided with a driving status discrimination device, which includes a steering angle sensor for detecting the rotational angle of a steering wheel and a microcomputer for reading and processing the steering angle signal each time the vehicle runs a predetermined distance. The microcomputer identifies one of steering angular ranges of intervals to which each detected steering angle belongs so as to record the frequency at which the steering wheel was turned to each steering angular interval. The microcomputer modifies the frequency for each steering angle interval with a weighting coefficient determined for the steering angular interval and then, calculates a total or integrated value of the modified frequencies for the steering angular intervals. Further, the microcomputer discriminates town street driving from mountain road driving based upon the integrated value so that the assisting power generated by a power steering mechanism of the motor vehicle can be controlled based upon the result of such discrimination.

摘要翻译： 机动车辆设置有驱动状态识别装置，其包括用于检测方向盘的旋转角度的转向角传感器和每当车辆行驶预定距离时用于读取和处理转向角信号的微型计算机。 微型计算机识别每个检测到的转向角所属的间隔的转向角范围，以将方向盘转向的频率记录到每个转向角间隔。 微型计算机利用为转向角间隔确定的加权系数来修改每个转向角间隔的频率，然后计算转向角间隔的修正频率的总或综合值。 此外，微型计算机基于积分值来区分城市街道驾驶与山路驾驶，从而可以基于这种歧视的结果来控制由汽车的动力转向机构产生的辅助动力。

公开(公告)号：US4246577A

公开(公告)日：1981-01-20

申请号：US935779

申请日：1978-08-22

申请人： Yoshio Shima ,  Kyosuke Haga ,  Kunihiko Eto ,  Tetsuro Yamakage

发明人： Yoshio Shima ,  Kyosuke Haga ,  Kunihiko Eto ,  Tetsuro Yamakage

IPC分类号： B23B47/24 ,  B23B49/00 ,  G05B19/4065 ,  G01B11/14 ,  G08B21/00

CPC分类号： B23B49/001 ,  B23Q17/2241 ,  G05B19/4065 ,  G05B2219/37245 ,  G05B2219/45129

摘要： A tool breakage detecting apparatus is provided with a preset counter to be preset with a predetermined value. The content of the counter is subtracted one by one each time either one of a tool and a workpiece to be machined is moved a unit distance toward the other thereof from a cutting movement start position being spaced a predetermined distance from the other thereof. If the content of the counter is reduced an amount corresponding to a distance larger than the predetermined distance, tool breakage is detected.

摘要翻译： 工具破损检测装置设置有预设有预定值的预设计数器。 每当工具和要加工的工件中的任一个从距离另一个间隔预定距离的切割移动开始位置朝向另一个移动单位距离时，逐个减去计数器的内容。 如果计数器的内容减少了对应于大于预定距离的距离的量，则检测到刀具断裂。

公开(公告)号：US5122958A

公开(公告)日：1992-06-16

申请号：US552087

申请日：1990-07-13

申请人： Kunihiko Eto ,  Shiro Takeuchi ,  Kazumasa Kodama

发明人： Kunihiko Eto ,  Shiro Takeuchi ,  Kazumasa Kodama

IPC分类号： B62D6/00

CPC分类号： B62D6/00

摘要： An apparatus for controlling the ratio of a assisting force produced by a power steering system installed in an vehicle to a steering torque supplied by the driver wherein the ratio is changed by a solenoid valve arranged in the power steering system. The CPU of the apparatus changes control current to be applied to the solenoid valve using a characteristic map defining change of a base current with respect to changes of the vehicle speed and the steering angle. Further, the CPU increases the control current, when the steering wheel is returned to its neutral angle position, so as to decrease the ratio, increasing the self returning ability of the steering mechanism. The control current applied to the solenoid valve during the returning operation is changed depending upon both the steering angle and the steering speed of the steering wheel using additional characteristic maps.

公开(公告)号：US4793431A

公开(公告)日：1988-12-27

申请号：US92584

申请日：1987-09-03

申请人： Kunihiko Eto ,  Yutaka Mori ,  Kazumasa Kodama

发明人： Kunihiko Eto ,  Yutaka Mori ,  Kazumasa Kodama

IPC分类号： B62D6/02 ,  B62D6/00 ,  B62D113/00 ,  B62D127/00 ,  B62D5/06

CPC分类号： B62D6/007

摘要： There is disclosed an apparatus for controlling the ratio of the assisting force produced by a power-steering system installed in an automobile to the steering torque supplied by the driver. The apparatus primarily consists of a microprocessor, a ROM, and a RAM. The microprocessor controls the amount of current supplied to a solenoid valve according to the velocity of the automobile. The aforementioned ratio is varied according to the driver's condition and the road condition. Four graphs representing the relation of the electric current supplied to the solenoid valve to the angle through which the steering wheel is rotated are stored in the ROM. Each graph has two characteristic curves for two different values of the velosity of the automobile. The microprocessor calculates a driver's condition index from the output signal from a velocity sensor. Also, it calculates a road condition index from the output signal from a steering angle sensor. The value of the current supplied to the solenoid valve is selected from the data stored in the ROM according to these indices.

公开(公告)号：US4662466A

公开(公告)日：1987-05-05

申请号：US777787

申请日：1985-09-17

申请人： Kunihiko Eto ,  Akihiro Ohno ,  Yutaka Mori

发明人： Kunihiko Eto ,  Akihiro Ohno ,  Yutaka Mori

IPC分类号： B62D6/00 ,  B62D6/02 ,  B62D101/00 ,  B62D113/00 ,  B62D137/00 ,  B62D5/06

CPC分类号： B62D6/00 ,  B62D6/02

摘要： An electronically controlled power steering apparatus wherein the steering force generated by a power cylinder (15) is controlled by a microcomputer (54). Detection signals from a vehicle speed sensor (50) and a steering angle sensor (51) are input to the microcomputer (54), which thus, reads out from a memory (60) stored control electric currents corresponding to detection signals in order to output the appropriate control electric currents. A solenoid valve (20) for controlling the communication between left and right chambers of the power cylinder (15) and another solenoid valve (30) for controlling the supply of pressurized fluid from a pump (16) to a servovalve (14) are driven in response to the control electric currents from the microcomputer (54). When the vehicle runs a predetermined distance or a predetermined time period after the supply of electric current, the microcomputer (54) decreases the control electric currents charged to the solenoid valves (20) and (30). Accordingly, even in a vehicle of the type wherein a neutral position of the steering (10 ) cannot be precisely detected unless the vehicle runs the predetermined distance or the predetermined time period after the supply of electric power, any uncomfortable or strange "feel" by the driver can be avoided.

摘要翻译： PCT No.PCT / JP85 / 00278 Sec。 371日期：1985年9月17日 102（e）1985年9月17日PCT 1985年5月21日提交PCT。一种电动控制动力转向装置，其中由动力缸（15）产生的转向力由微型计算机（54）控制。 来自车速传感器（50）和转向角传感器（51）的检测信号被输入到微计算机（54），从而从存储器（60）读出存储与检测信号对应的控制电流，以输出 适当的控制电流。 用于控制动力缸（15）的左右室与另一电磁阀（30）之间的连通的电磁阀（20）用于控制从泵（16）到伺服阀（14）的加压流体的供给， 响应于来自微计算机（54）的控制电流。 当车辆在电力供应之后经过预定距离或预定时间段时，微型计算机（54）减小了加到电磁阀（20）和（30）的控制电流。 因此，即使在没有精确地检测到转向（10）的中立位置的车辆中，除非车辆在电力供应之后经过预定距离或预定时间段，否则任何不舒适或奇怪的“感觉”由 司机可以避免。

公开(公告)号：US4580085A

公开(公告)日：1986-04-01

申请号：US724165

申请日：1985-04-17

申请人： Kunihiko Eto ,  Syuichi Nakada ,  Kaoru Owa ,  Tadashi Koyama

发明人： Kunihiko Eto ,  Syuichi Nakada ,  Kaoru Owa ,  Tadashi Koyama

IPC分类号： G05B9/02 ,  B25J9/16 ,  B25J9/18 ,  G05B19/4067 ,  G05B19/4155 ,  G05B23/02

CPC分类号： B25J9/1676 ,  G05B2219/49157 ,  G05B2219/49162

摘要： In a feed control system, a feed controller controls a servomotor in such a manner as to reduce the difference between an objective position and a present position of a movable body. An interference detection circuit coupled to the feed controller detects the occurrence of an interference between the movable body and an obstruction when feed movement of the movable body is discontinued nevertheless the difference between the objection and present positions does not reach zero. A digital computer is coupled to an objective position counter provided in the feed controller to selectively set therein objective positions to which the movable body is to be positioned successively. The digital computer, when receiving a signal from the interference detection circuit, sets the objective position counter with data for moving the movable body a predetermined amount in a direction opposite to that wherein the movable body was moved before the occurrence of an interference.

摘要翻译： 在进给控制系统中，进给控制器以减小可移动体的目标位置和当前位置之间的差异的方式控制伺服电动机。 耦合到馈送控制器的干扰检测电路检测当移动体的进给运动中断时可移动体和障碍物之间的干扰的发生，然而反射和当前位置之间的差不会达到零。 数字计算机被耦合到设置在馈送控制器中的目标位置计数器，以选择性地将其中可移动体被定位到的目标位置。 数字计算机在从干扰检测电路接收到信号时，将目标位置计数器设置为与可动体在发生干扰之前移动的方向相反的方向移动可移动体的数据。

公开(公告)号：US4203691A

公开(公告)日：1980-05-20

申请号：US958363

申请日：1978-11-07

申请人： Hideo Nishimura ,  Shigeo Noda ,  Kunihiko Eto

发明人： Hideo Nishimura ,  Shigeo Noda ,  Kunihiko Eto

IPC分类号： B23Q17/22 ,  B23B47/24 ,  B23Q15/24 ,  B23B39/04 ,  B23B9/00 ,  B23B39/06

CPC分类号： B23Q15/24 ,  B23Q17/2241 ,  Y10T408/05 ,  Y10T408/16 ,  Y10T408/175

摘要： A contact detecting apparatus for detecting the contact of a workpiece with a tool in a machine tool which comprises a coil mounted on the periphery of a spindle head and connected to an AC power source for generating an induced current in a looped secondary circuit including the workpiece, a work table, a machine body, a spindle head, a tool spindle and the tool, when the workpiece and the tool are moved relatively into contact with each other. Bypassing elements are included in the secondary circuit for bypassing an electric resistance in spindle bearings. A detector is connected between the AC power source and the coil for detecting a change in an electric signal caused by the contact between the workpiece and the tool.

摘要翻译： 一种用于检测工件与机床中的工具的接触的接触检测装置，其包括安装在主轴头的周边并连接到AC电源的线圈，用于在包括工件的环形二次回路中产生感应电流 ，工件台，机体，主轴头，工具主轴和工具，当工件和工具相对移动相互接触时。 旁路元件包含在次级电路中，以绕过主轴轴承中的电阻。 检测器连接在AC电源和线圈之间，用于检测由工件和工具之间的接触引起的电信号的变化。