Ignition system with automatic increase in ignition energy during
acceleration
    2.
    发明授权
    Ignition system with automatic increase in ignition energy during acceleration 失效
    点火系统加速时自动增加点火能量

    公开(公告)号:US4267813A

    公开(公告)日:1981-05-19

    申请号:US16509

    申请日:1979-03-01

    IPC分类号: F02P5/155 F02P3/04

    CPC分类号: F02P5/1553 Y02T10/46

    摘要: When the engine accelerates, the angle over which the ignition switch is closed prior to initiating the spark is automatically increased. Acceleration of the engine is detected by a comparator which compares the value of a speed-dependent signal in sequential cycles and initiate closure of the ignition switch if a predetermined difference is exceeded between the so-compared signals at a predetermined time in the cycle. Under static or decelerating conditions, the speed-dependent signal is compared, in each cycle, to the output of an integrator circuit. The integrator circuit integrates in a first direction at a first rate up to the above-mentioned predetermined time in the cycle and in the opposite direction at a second predetermined rate for the remainder of the cycle. The average value of the integrator output signal corresponds to the engine speed. When the so-compared signals are equal, the second comparator furnishes an output signal which closes the ignition switch. The integrating rates may be varied as a function of operating parameters of the engine.

    摘要翻译: 当发动机加速时,在启动火花之前点火开关关闭的角度自动增加。 通过比较器来检测发动机的加速度,该比较器在顺序循环中比较速度相关信号的值,并且如果在该周期中的预定时间内超过如此比较的信号之间的预定差异,则启动点火开关的闭合。 在静态或减速条件下,速度相关信号在每个周期中与积分器电路的输出进行比较。 积分器电路在第一速率下以第一速率在该周期中以上述预定时间积累第一方向,并且在该周期的其余部分以第二预定速率向相反方向积分。 积分器输出信号的平均值对应于发动机转速。 当比较信号相等时,第二比较器提供关闭点火开关的输出信号。 积分率可以根据发动机的操作参数而变化。

    Ignition coil with overvoltage protection connected to the secondary
winding of the ignition coil
    4.
    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。

    Ignition system with improved temperature and voltage compensation
    5.
    发明授权
    Ignition system with improved temperature and voltage compensation 失效
    点火系统具有改善的温度和电压补偿

    公开(公告)号:US4253442A

    公开(公告)日:1981-03-03

    申请号:US60878

    申请日:1979-07-26

    CPC分类号: F02P3/051

    摘要: The voltage across a capacitor is changed in a first direction while the current in the primary winding of the ignition coil increases to a predetermined value less than the value required for ignition and is thereafter changed in a second direction until ignition takes place. The voltage across the capacitor is applied to the inverting input of a difference amplifier constituting a threshold stage controlling the initiation and termination of current flow through the ignition coil. The two changes are symmetrical when the engine speed remains constant. The residual voltage across the capacitor at the end of the second change is maintained until the start of the next subsequent first change, so that the time at which the threshold stage switches in, that is the time at which primary current starts to flow in the ignition coil changes as a function of the residual voltage in the capacitor.

    摘要翻译: 电容器两端的电压在第一方向上变化,同时点火线圈的初级绕组中的电流增加到小于点火所需值的预定值,然后在第二方向上改变直到发生点火。 电容器两端的电压被施加到构成阈值级的差分放大器的反相输入,该阈值级控制通过点火线圈的电流的启动和终止。 当发动机转速保持恒定时,两个变化是对称的。 在第二次变化结束时,电容器两端的剩余电压被维持直到下一个随后的第一次改变开始,使得阈值级切换的时间,即初级电流开始流过的时间 点火线圈根据电容器中的残余电压而变化。

    Supply voltage variation compensated ignition system for an internal
combustion engine
    6.
    发明授权
    Supply voltage variation compensated ignition system for an internal combustion engine 失效
    内燃机电源电压变化补偿点火系统

    公开(公告)号:US4185603A

    公开(公告)日:1980-01-29

    申请号:US865578

    申请日:1977-12-29

    CPC分类号: F02P3/0552 F02P3/0453

    摘要: To operate an ignition control transistor, connected into the primary ignition coil under minimum saturation condition regardless of voltage level of the supply voltage, delivered, for example, from the battery of an automotive vehicle, at least one timing circuit is connected to the voltage supply to have a timing interval which varies as a function of supply voltage, the timing interval controlling the duration of current flow through the transistor as a function of supply voltage so that the transistor will be conductive for the required time to store magnetic energy in the coil, though not for an excessively long period of time regardless of the level of supply voltage within the limits normally experienced in automotive ignition systems.

    摘要翻译: 为了操作点火控制晶体管,在最小饱和条件下连接到初级点火线圈中,而不管例如从汽车的电池输送的电源电压的电压电平,至少一个定时电路连接到电压源 具有作为电源电压的函数而变化的定时间隔,定时间隔控制作为电源电压的函数的电流流过晶体管的电流的持续时间,使得晶体管将导通所需的时间以将磁能存储在线圈中 尽管不是过长的时间段,而不管汽车点火系统中通常经历的极限范围内的电源电压如何。

    Adapter for improving the operation of electrical circuits in a motor
vehicle
    7.
    发明授权
    Adapter for improving the operation of electrical circuits in a motor vehicle 失效
    用于改善机动车辆电路运行的适配器

    公开(公告)号:US4331122A

    公开(公告)日:1982-05-25

    申请号:US147143

    申请日:1980-05-06

    CPC分类号: F02P9/00

    摘要: Adapter plugs are proposed for electronic circuits in motor vehicles which normally receive plug-in units. The adapter plug is interposed between the circuits and the plug-in units and contains circuits which improve the operation of such units. Specifically, in ignition control circuits, the circuitry in the adapter plug can contain a thyristor which is normally blocked, but which shunts energy from the ignition capacitor when the ignition switch is open while the interrupter switch is closed. This prevents the generation of undesired sparks.

    摘要翻译: 针对通常接收插件的机动车辆的电子线路提出了适配器插头。 适配器插头插入在电路和插件单元之间,并且包含改善这些单元的操作的电路。 具体来说,在点火控制电路中,适配器插头中的电路可以包含通常被阻塞的可控硅,当断路器开关闭合时点火开关断开时,可分流来自点火电容器的能量。 这防止产生不期望的火花。

    Internal combustion engine ignition system
    8.
    发明授权
    Internal combustion engine ignition system 失效
    内燃机点火系统

    公开(公告)号:US4253443A

    公开(公告)日:1981-03-03

    申请号:US109625

    申请日:1980-01-04

    IPC分类号: F02P3/045 F02P7/067 F02P1/00

    CPC分类号: F02P7/0672 F02P3/0456

    摘要: To permit use of shaft position transducers which provide needle pulses at predetermined angular positions of the crankshaft of an engine, such as Wiegand-type, and still enable generation of a counted dwell time even under transient conditions, or under low-speed conditions, the output from the Wiegand transducer is connected to a logic circuit which, under normal operating conditions, by use of a counter counts a predetermined time interval after opening of a switch in series with the ignition coil to determine the dwell period or initiation of current flow for a subsequent ignition event by resetting the counter with a reverse polarity subsequent pulse, thereby passing, upon reset, a predetermined count state which, similar to the normal counting of the count state, initiates closing of the switch. Thus, even though the normal counting time has not yet been reached, the reset operation of the counter will trigger closing of the switch and hence sufficient current flow through the ignition coil to store the appropriate electromagnetic energy therein for a reliable spark at the spark plug.

    摘要翻译: 为了允许使用在诸如Wiegand型发动机的曲轴的预定角度位置处提供针脉冲的轴位置换能器,并且即使在瞬态条件下或者在低速条件下仍然能够产生计数停留时间, 来自韦根传感器的输出连接到逻辑电路,该逻辑电路在正常操作条件下通过使用计数器在与点火线圈串联的开关断开之后计数预定的时间间隔,以确定电流的停留时间或电流的开始 随后的点火事件通过用反极性后续脉冲复位计数器,从而在复位时通过预定的计数状态,其类似于计数状态的正常计数启动开关的闭合。 因此,即使尚未达到正常的计数时间,计数器的复位操作将触发开关的闭合,从而使足够的电流流过点火线圈以在其中存储适当的电磁能,以便在火花塞处产生可靠的火花 。

    Transistorized ignition system for internal combustion engines
    9.
    发明授权
    Transistorized ignition system for internal combustion engines 失效
    内燃机用二极管点火系统

    公开(公告)号:US4130101A

    公开(公告)日:1978-12-19

    申请号:US707323

    申请日:1976-07-21

    CPC分类号: F02P3/0556

    摘要: To provide for gradual turn-off of an ignition coil current control transistor, a control capacitor which provides turn-off current has its charge state changed gradually by means of an auxiliary transistor so connected to the capacitor that the conduction of the emitter-collector path of the auxiliary transistor is gradually changed, the main switching transistor being connected to and controlled by the auxiliary transistor and likewise changing gradually from conductive to blocking state in dependence on the gradual change in conduction of the emitter-collector path of the auxiliary transistor to prevent rapid turn-off of the main switching transistor and hence an undesired pulse at the secondary of the ignition coil which may induce continued operation of the internal combustion engine even though the ignition has been turned off.

    摘要翻译: 为了提供点火线圈电流控制晶体管的逐渐关断,提供截止电流的控制电容器借助于连接到电容器的辅助晶体管逐渐改变其电荷状态,使得发射极 - 集电极路径 辅助晶体管逐渐变化,主开关晶体管连接到辅助晶体管并由辅助晶体管控制,并且同样根据辅助晶体管的发射极 - 集电极路径的逐渐变化导通到阻挡状态逐渐变化,以防止 主开关晶体管的快速关断,因此在点火线圈的次级处是不期望的脉冲,这可能导致内燃机的继续操作,即使点火已经关闭。

    Internal combustion engine semi-conductor ignition control system
    10.
    发明授权
    Internal combustion engine semi-conductor ignition control system 失效
    内燃机半导体点火控制系统

    公开(公告)号:US4077379A

    公开(公告)日:1978-03-07

    申请号:US724976

    申请日:1976-09-20

    摘要: To prevent generation of a spurious spark at the spark plug if the distributor braker control assembly should have commanded an ignition control transistor to be conductive and when the ignition switch is disconnected under those conditions, thus cutting off power to the ignition control transistor rendering it non-conductive and causing spurious voltage pulses which results in a spark at the ignition, a control path is provided connected to a control transistor for the actual ignition transistor and connected in circuit with the current flow due to the energy stored in the ignition coil to control the emitter-collector path of the ignition switching transistor to continue to remain conductive for a short period of time to drain off the stored energy in the coil, although the main ignition switch has been opened.

    摘要翻译: 如果分配器制动器控制组件应该已经命令点火控制晶体管导通,并且当在这些条件下点火开关断开时,防止火花塞产生寄生火花,从而切断点火控制晶体管的电源, 导致并导致在点火时产生火花的杂散电压脉冲,提供连接到用于实际点火晶体管的控制晶体管并且由于存储在点火线圈中的能量而与电流连接在一起的电路中的控制路径以控制 点火开关晶体管的发射极 - 集电极路径在短时间内继续保持导通,以排除线圈中存储的能量,尽管主点火开关已经打开。