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    • 6. 发明授权
    • Device for controlling steering force in power steering apparatus
    • 用于控制动力转向装置转向力的装置
    • US4858134A
    • 1989-08-15
    • US98185
    • 1987-09-18
    • Kunihiko EtoShiro TakeuchiYutaka MoriShigeo TanookaKazumasa KodamaTsutomu Matsumoto
    • Kunihiko EtoShiro TakeuchiYutaka MoriShigeo TanookaKazumasa KodamaTsutomu Matsumoto
    • B62D6/02B62D6/00B62D113/00B62D127/00
    • B62D6/00
    • 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.
    • 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。
    • 7. 发明授权
    • Isolator circuit with improved frequency response
    • 隔离器电路具有改善的频率响应
    • US3974425A
    • 1976-08-10
    • US555193
    • 1975-03-03
    • Toshitsugu UedaShiro Takeuchi
    • Toshitsugu UedaShiro Takeuchi
    • H01F19/06G01R19/20G05F1/10H03F3/38H03F15/00
    • G01R19/20G05F1/10H03F15/00
    • An isolator circuit of the type designed to accept an input current and to generate a corresponding output current which is isolated from the input. The isolator circuit is formed with a core developing a flux in response to the input current and having a feedback winding for carrying the isolated output current. A magneto-sensitive element, such as a Hall effect element, responds to flux in the core, and an amplifier receives the output of the magneto-sensitive element and supplies a current to the feedback winding so as to cancel the flux produced in the core due to the input current. Improved frequency response is attained by means of a compensation winding disposed to respond to the difference between the flux produced by the input current and the flux produced by the output current. The compensation winding is connected in the isolator circuit with the voltage developed across the compensation winding being superposed on the output of the magneto-sensitive element and supplied to the input of the amplifier. The voltage developed across the compensation winding leads the voltage across the magneto-sensitive element and compensates for phase lags arising in the current, thereby extending accurate frequency response of the circuit.
    • 一种隔离器电路,其类型被设计为接受输入电流并产生与输入隔离的相应输出电流。 隔离器电路形成有芯,其响应于输入电流形成通量,并具有用于承载隔离输出电流的反馈绕组。 诸如霍尔效应元件的磁敏元件响应于磁芯中的磁通,并且放大器接收磁敏元件的输出并且向反馈绕组提供电流以便消除在磁芯中产生的磁通量 由于输入电流。 改进的频率响应通过设置为响应由输入电流产生的磁通与由输出电流产生的磁通之差的补偿绕组来实现。 补偿绕组连接在隔离器电路中,跨越补偿绕组的电压叠加在磁敏元件的输出上,并提供给放大器的输入端。 在补偿绕组上产生的电压导致磁敏元件上的电压,并补偿电流中产生的相位滞后,从而延长电路的精确频率响应。