Ignition coil with overvoltage protection connected to the secondary
winding of the ignition coil
    1.
    发明授权
    Ignition coil with overvoltage protection connected to the secondary winding of the ignition coil 失效
    具有过电压保护的点火线圈连接到点火线圈的次级绕组

    公开(公告)号:US4351310A

    公开(公告)日:1982-09-28

    申请号:US193186

    申请日:1980-10-01

    CPC分类号: F02P3/0552

    摘要: An overvoltage protection circuit is galvanically, directly connected across at least part of the secondary winding in the ignition system of an internal combustion engine. The input portion of the overvoltage protection circuit is a voltage divider preferably constituted by RC elements. The voltage at the tap of the voltage divider is applied to a Schmitt trigger. When the voltage across the secondary winding becomes excessively high, the Schmitt trigger output pulse triggers a monostable multivibrator whose output pulse in turn increases the conductivity of a transistor switch located in series with the primary. The increase in primary current tends to oppose further increases in primary and secondary voltages. Alternatively, the output from the multivibrator could be used to shorten the time of current flow in the primary winding in subsequent ignition time intervals or to completely block any subsequent ignition process.

    摘要翻译: 过电压保护电路电连接,直接连接在内燃机的点火系统中的次级绕组的至少一部分上。 过压保护电路的输入部分是优选由RC元件构成的分压器。 分压器抽头上的电压施加到施密特触发器。 当次级绕组两端的电压变得过高时,施密特触发器输出脉冲触发单稳态多谐振荡器,其输出脉冲又增加了与初级绕组串联的晶体管开关的电导率。 初级电流的增加往往反对一次和二次电压的进一步增加。 或者,多谐振荡器的输出可以用于缩短在随后的点火时间间隔中的初级绕组中的电流流动的时间,或者完全阻止任何随后的点火过程。

    Apparatus for generating an ignition control signal for an internal
combustion engine
    2.
    发明授权
    Apparatus for generating an ignition control signal for an internal combustion engine 失效
    一种用于产生用于内燃机的点火控制信号的装置

    公开(公告)号:US4326486A

    公开(公告)日:1982-04-27

    申请号:US81622

    申请日:1979-10-04

    IPC分类号: F02P5/155 F02P5/15 F02P5/08

    CPC分类号: F02P5/15 Y02T10/46

    摘要: In order to control the spark advance of an internal combustion engine in the idling domain, the invention provides circuitry for increasing the spark advance below an upper rpm limit and returning the ignition timing to normal when the engine speed drops below a second lower limit. The continuous temporal shift of an output signal which may be used for engaging the ignition control system of the engine is provided by a very small number of elements, in particular only two timing elements, a flip-flop and a number of logical gates. The two flip-flops are triggered by the respective leading and trailing edges of the engine speed transducer signal. One of the flip-flops defines the upper engine speed limit while the second timing element defines the lower engine speed limit. Two embodiments of the invention are described.

    摘要翻译: 为了控制怠速范围内的内燃机的火花提前,本发明提供了一种电路,用于在发动机转速下降到低于第二下限以下时将火花提前升高到高于转速下限,并将点火正时恢复正常。 可用于接合发动机的点火控制系统的输出信号的连续时间偏移由非常少量的元件,特别是仅两个定时元件,触发器和多个逻辑门提供。 两个触发器由发动机转速传感器信号的相应前沿和后沿触发。 其中一个触发器定义了上限速度限制,而第二个定时元件定义了较低的发动机转速限制。 对本发明的两个实施例进行描述。

    Semiconductor ignition system for internal combustion engines
    3.
    发明授权
    Semiconductor ignition system for internal combustion engines 失效
    内燃机半导体点火系统

    公开(公告)号:US4100908A

    公开(公告)日:1978-07-18

    申请号:US707320

    申请日:1976-07-21

    CPC分类号: F02P3/0556

    摘要: To provide for gradual decay of current flow through the primary of an ignition coil, and hence suppression of spurious sparks at spark plugs, a main switching transistor has its conductivity controlled by the conductivity of the emitter-collector path of a control transistor, the base-emitter path of which forms part of a discharge circuit of a control capacitor, which discharge circuit has a sufficiently high resistance to provide for gradual discharge of the capacitor and hence gradual transition of the conductivity of the control transistor.

    摘要翻译: 为了提供通过点火线圈的初级电流的逐渐衰减,并且因此抑制火花塞上的杂散火花,主开关晶体管的导电性由控制晶体管的发射极 - 集电极路径的导电性控制,基极 其发射路径形成控制电容器的放电电路的一部分,该放电电路具有足够高的电阻以提供电容器的逐渐放电,并且因此控制晶体管的电导率的逐渐转变。

    Over-voltage protected solid-state ignition system
    4.
    发明授权
    Over-voltage protected solid-state ignition system 失效
    过电压保护固态点火系统

    公开(公告)号:US4280166A

    公开(公告)日:1981-07-21

    申请号:US929939

    申请日:1978-08-09

    摘要: To prevent excessive current flow through the control transistor of a solid-state ignition system in which the control transistor is serially connected with an ignition coil, if the power supply voltage should exceed rated value, the voltage monitoring circuit, including a Zener diode, is connected across the power supply source. The solid-state ignition system includes a control transistor which controls the conduction state of the final or output transistor. The over-voltage circuit additionally controls the conduction state of this control transistor to conductive condition if over-voltage is sensed, thereby causing changeover of the final or output transistor to blocked state. A timing circuit including a capacitor is preferably included in the monitoring circuit so that application of control voltage to the control transistor is gradual, causing changeover of the main or output transistor likewise to be gradual and preventing generation of an undesired ignition event.

    摘要翻译: 为了防止过电流流过控制晶体管与点火线圈串联连接的固态点火系统的控制晶体管,如果电源电压超过额定值,则包括齐纳二极管的电压监视电路是 连接在电源上。 固态点火系统包括控制晶体管,其控制最终或输出晶体管的导通状态。 如果检测到过电压,则过电压电路还将该控制晶体管的导通状态控制为导通状态,从而导致最终或输出晶体管转换为阻塞状态。 包括电容器的定时电路优选地包括在监视电路中,使得对控制晶体管的控制电压的施加是逐渐的,从而导致主或输出晶体管的切换同样是渐进的并且防止产生不期望的点火事件。

    Apparatus for generating an ignition control signal for an internal
combustion engine
    5.
    发明授权
    Apparatus for generating an ignition control signal for an internal combustion engine 失效
    一种用于产生用于内燃机的点火控制信号的装置

    公开(公告)号:US4259934A

    公开(公告)日:1981-04-07

    申请号:US81684

    申请日:1979-10-04

    IPC分类号: F02P5/155 F02P5/04

    CPC分类号: F02P5/155 Y02T10/46

    摘要: In order to prevent engine misfires and irregular engine performance when an engine is accelerated from very low speeds, for example starting speeds, due to the engagement of an automatic spark advance feature, the apparatus of the invention provides that the automatic spark advance for low and decreasing engine speeds is operative only when the engine is decelerated from higher engine speeds through an upper threshold level but remains inoperative when the engine is accelerated from low speeds through a lower threshold level. The apparatus includes a number of timing members which define a hysteresis characteristc which shifts the occurrence of an ignition control signal only when the upper speed level is crossed from above. A number of embodiments is presented.

    摘要翻译: 为了防止由于自动火花提前特征的接合引起的发动机从非常低的速度(例如起动速度)加速而发动机发动机失火和不规则的发动机性能,本发明的装置提供了低和低的自动火花提前 只有当发动机从较高的发动机速度减速到较高的阈值水平时,降低的发动机速度才起作用,但是当发动机从低速加速到较低的阈值水平时,发动机的速度仍然不起作用。 该装置包括多个定时构件,其限定了仅当从上方越过高速度水平时才转移点火控制信号的发生的滞后特性。 呈现了许多实施例。