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    • 49. 发明授权
    • Idling speed control for internal combustion engines
    • 内燃机空转速度控制
    • US4474154A
    • 1984-10-02
    • US435642
    • 1982-10-21
    • Manfred HenningWolfgang Misch
    • Manfred HenningWolfgang Misch
    • G05D13/62F02D31/00F02D41/16F02M3/00
    • F02D31/004
    • Regulation of idling speed involves the production of a first error signal by comparing engine speed with a reference idling speed, and then deriving from the first error signal in an amplifying PI controller, proportional and integral components that are added together, for use of the PI sum signal as a reference value signal for the displaceable stop position. The latter is compared to the actual stop position to provide a second error signal for control of electro-pneumatic valves of a positioning device that displaces the stop. Both the proportional and integral components produced in the controller vary assymetrically about the reference idling speed, so that regulation operates more strongly when the engine speed is too low than when it is too high, except for a dead zone on either side of the reference idling speed. When the driver actuates the throttle, a switch signal designates that the idling condition is no longer present and a lower engine speed threshold defines a starting mode of operation at lower speeds and a higher engine speed threshold distinguishes the "drive" mode from the partial load mode. Suitable operations of the displaceable stop during mode transitions and during operations in non-idling modes are provided. The controller output at the end of the last idling interval is stored for use when the engine returns to the idling mode.
    • 空转速度的调节涉及通过将发动机速度与参考空载速度进行比较来产生第一误差信号,然后从放大PI控制器中的第一误差信号中得到加法使用的PI的比例和积分分量 和信号作为可移位停止位置的参考值信号。 将后者与实际停止位置进行比较,以提供第二误差信号,用于控制位移装置的定位装置的电动气动阀。 在控制器中产生的比例和积分分量对参考空转速度的不均匀性有不同的变化,当发动机转速太低时,调节运行更加强烈,除了参考空转两侧的死区之外 速度。 当驾驶员启动油门时,开关信号指示空转状态不再存在,较低的发动机转速阈值定义了较低速度下的起动运行模式,较高的发动机转速阈值将“驱动”模式与部分负载区分开 模式。 提供了在模式转换期间和在非空闲模式期间的可移位停止的适当操作。 最后一怠速间隔结束时的控制器输出被保存,以便在发动机返回怠速模式时使用。
    • 50. 发明授权
    • Rotary positioning apparatus and associated methods, such as for a
carburetor choke valve
    • 旋转定位装置及相关方法,例如用于化油器阻流阀
    • US4458228A
    • 1984-07-03
    • US317765
    • 1981-11-03
    • Hans Baumgartner
    • Hans Baumgartner
    • F02D31/00H01F7/14H02K26/00H01R39/00H01F7/08
    • H01F7/145F02D31/00H02K26/00
    • Rotary positioning apparatus for a member movable through an angle of rotation of less than 360.degree. comprising a rotor including windings thereon and a stator including a permanent magnet establishing a magnetic circuit providing magnetic flux through which the rotor is movable, the rotor and stator constituting a DC motor. The stator includes a stationary hollow shaft on which the rotor is rotatably supported by bearings. The rotor includes a neck adapted for being coupled with the member to be moved. A plurality of flexible current carrying wires extend through the hollow shaft and through slots provided in the neck to the windings for energization thereof. The hollow shaft has opposite open ends at one of which the wires enter the hollow shaft and at the other of which the wires exit from the shaft and extend through the slots to the windings such that the wires undergo twisting within the confines of the shaft as the rotor rotates with respect to the stator.
    • 用于可移动小于360°的旋转角度的构件的旋转定位装置,包括其上包括绕组的转子和包括永磁体的定子,所述定子包括提供转子可移动的磁通量的磁路,所述转子和定子构成 直流电机 定子包括固定空心轴,转子由轴承可转动地支撑在该固定空心轴上。 转子包括适于与要移动的构件联接的颈部。 多个柔性载流电线延伸穿过中空轴并且通过设置在颈部中的狭槽延伸到绕组以使其通电。 空心轴具有相对的开口端,其中一条线进入中空轴,另一条线从轴离开轴并延伸穿过槽到绕组,使得电线在轴的范围内扭转, 转子相对于定子旋转。