Electric motor-driven power steering apparatus
    5.
    发明授权
    Electric motor-driven power steering apparatus 失效
    电动助力转向装置

    公开(公告)号:US4869334A

    公开(公告)日:1989-09-26

    申请号:US181048

    申请日:1988-04-13

    CPC分类号: B62D5/0463 B62D5/0484

    摘要: The steering power assist control comprises a main assist control and an auxiliary assist control. When an abnormality occurrence signal from the main assist control is inputted to an abnormality state detection and changing decision circuit 134, the selector circuit changes the PWM signal from the main assist control side to the auxiliary assist control side and outputs the PWM signal to a motor drive circuit. When the main assist control fails, the auxiliary assist control immediately takes over the main assist control to provide, if the operation condition permits, a continued steering power assist control. This prevents an abnormal steering state of the vehicle that would otherwise result when the steering power assist is suddenly lost.

    摘要翻译: 转向助力控制包括主辅助控制和辅助辅助控制。 当来自主辅助控制的异常发生信号被输入到异常状态检测和改变判定电路134时,选择器电路将来自主辅助控制侧的PWM信号改变到辅助辅助控制侧,并将PWM信号输出到电动机 驱动电路。 当主辅助控制失败时,辅助辅助控制立即接管主辅助控制,以在操作条件允许的情况下提供持续的转向助力控制。 这防止了当转向助力突然失去时否则会导致车辆的异常转向状态。

    Transistor switching apparatus for use in the control of a D.C. load
    6.
    发明授权
    Transistor switching apparatus for use in the control of a D.C. load 失效
    用于控制直流负载的晶体管开关装置

    公开(公告)号:US4218730A

    公开(公告)日:1980-08-19

    申请号:US959099

    申请日:1978-11-09

    IPC分类号: H02M3/156 H02P7/29 H02M7/00

    摘要: A power switching apparatus for use in the control of a D.C. load such as a D.C. motor comprises a power transistor with its emitter-collector path connected in series with the D.C. motor and a battery. A base current of the power transistor is supplied from the battery through a controllable impedance element. A control unit is provided to vary the impedance of the controllable impedance element in response to the current flowing through the emitter-collector path in such a manner that the base current changes as substantially the inverse-function of a characteristic curve indicating a D.C. amplification factor versus collector current of the power switch transistor.

    摘要翻译: 用于控制诸如直流电动机等直流负载的电力开关装置包括其发射极 - 集电极路径与直流电动机和电池串联连接的功率晶体管。 功率晶体管的基极电流通过可控阻抗元件从电池供给。 提供控制单元以响应于流过发射极 - 集电极路径的电流来改变可控阻抗元件的阻抗,使得基极电流基本上改变为表示DC放大因子的特性曲线的反函数 与电源开关晶体管的集电极电流。

    Automatic change-gear control device for use in electromobile
    8.
    发明授权
    Automatic change-gear control device for use in electromobile 失效
    用于电动汽车的自动换档控制装置

    公开(公告)号:US4174645A

    公开(公告)日:1979-11-20

    申请号:US743657

    申请日:1976-11-22

    摘要: An automatic change-gear control device for use in an electromobile which incorporates a multi-stage change gear drive system. This automatic change gear control device selects and controls a gear ratio for an optimum ratio, depending on the running condition of a vehicle, and particularly provides a change-gear logic by detecting a load torque for every individual condition, in an attempt to improve the running performance of a vehicle at the time of acceleration or at the time of running on an upward slope.

    摘要翻译: 一种用于电动机的自动换档控制装置,其包括多级变速齿轮传动系统。 这种自动变速齿轮控制装置根据车辆的行驶状态来选择和控制最佳比率的齿轮比,并且特别地通过检测每个单独条件的负载转矩提供换档逻辑,以试图改善 在加速时或在向上斜坡上行驶时车辆的行驶性能。

    Control apparatus for electric generator
    9.
    发明授权
    Control apparatus for electric generator 失效
    发电机控制装置

    公开(公告)号:US5231344A

    公开(公告)日:1993-07-27

    申请号:US917734

    申请日:1992-07-20

    IPC分类号: H02J7/14 H02J7/24 H02P9/30

    摘要: A control device for an electric generator for use with a vehicle engine includes an armature winding (stator) and a field winding (rotor) driven by the vehicle engine. A chopper is provided for controlling the field current of the field winding and a pulse width modulator is provided for controlling the duty cycle of the chopper in response to the operating conditions of the engine. A voltage feedback loop is provided from a normally provided battery which loop incorporates a detector for detecting the actual battery voltage and a comparator for comparing the battery voltage with a predetermined set voltage so that the difference in voltage is rendered to zero. The invention additionally provides a current feedback loop for controlling a deviation between a current command value determining the duty of the chopper and an actual current flowing through the field winding so as to be substantially zero. There is also disclosed means for adaptively modifying the current command signal and means for controlling the current demanded by the field winding to reduce the torque demanded by the generator at times, inter alia, of acceleration and engine knocking.

    摘要翻译: 用于与车辆发动机一起使用的发电机的控制装置包括由车辆发动机驱动的电枢绕组(定子)和励磁绕组(转子)。 提供了用于控制励磁绕组的励磁电流的斩波器,并且提供了脉冲宽度调制器,用于响应于发动机的工作条件来控制斩波器的占空比。 从正常提供的电池提供电压反馈回路,该回路包括用于检测实际电池电压的检测器和用于将电池电压与预定设定电压进行比较的比较器,使得电压差变为零。 本发明另外提供电流反馈回路,用于控制确定斩波器的占空比的电流指令值与流过励磁绕组的实际电流之间的偏差大致为零。 还公开了用于自适应地修改电流指令信号的装置,以及用于控制由励磁绕组所需的电流的装置,以减少发电机特别是加速和发动机爆震时所需的转矩。

    Control circuit for use in control of current supply for electric motor
with improved duty controlling oscillator circuit, particularly for
electrical vehicle
    10.
    发明授权
    Control circuit for use in control of current supply for electric motor with improved duty controlling oscillator circuit, particularly for electrical vehicle 失效
    用于控制电动机电流的控制电路,具有改进的占空比控制振荡器电路,特别是用于电动车辆

    公开(公告)号:US4211961A

    公开(公告)日:1980-07-08

    申请号:US915582

    申请日:1978-06-15

    摘要: A control circuit for controlling supply of current for electric motor has a chopper circuit connected with a battery in series. The chopper circuit is constructed with such as power transistors or power thyristors, and the ON-OFF operation thereof is controlled by a driving pulse. A command signal is produced at a movable tap of a potentiometer, across which a D-C control voltage from the battery is applied. In order to determine the duty and the control frequency of the chopper circuit, a duty controlling oscillator circuit is provided, which generates an output signal on the basis of the command signal from the potentiometer. The duty controlling oscillator circuit includes an integrator composed of an operational amplifier having a negative feedback of a condenser, to the -input terminal of which the command signal is applied. Another operational amplifier having a positive feedback of a resistor operates as a hysteresis comparator, to the +input terminal of which is applied the output from the integrator and to the -one of which a divided reference of the D-C control voltage. In response to the output signal from the hysteresis comparator, a driving pulse generator produces a driving pulse to the chopper circuit.

    摘要翻译: 用于控制电动机电流供应的控制电路具有与电池串联连接的斩波电路。 斩波电路由功率晶体管或功率晶闸管构成,其通断驱动由驱动脉冲控制。 在电位计的可动抽头上产生指令信号,通过该命令信号施加来自电池的D-C控制电压。 为了确定斩波电路的占空比和控制频率,提供了占空比控制振荡器电路,其根据来自电位器的命令信号产生输出信号。 占空比控制振荡器电路包括由具有电容器的负反馈的运算放大器组成的积分器,输入端施加命令信号。 具有电阻器的正反馈的另一运算放大器用作滞环比较器,其+输入端施加来自积分器的输出,并且其中一个被分配给D-C控制电压。 响应于来自迟滞比较器的输出信号,驱动脉冲发生器产生对斩波电路的驱动脉冲。