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    • 1. 发明授权
    • Ignition system with automatic increase in ignition energy during
acceleration
    • 点火系统加速时自动增加点火能量
    • US4267813A
    • 1981-05-19
    • US16509
    • 1979-03-01
    • Gerd HohneGerhard Sohner
    • Gerd HohneGerhard Sohner
    • F02P5/155F02P3/04
    • F02P5/1553Y02T10/46
    • 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.
    • 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。
    • 5. 发明授权
    • Ignition system with improved temperature and voltage compensation
    • 点火系统具有改善的温度和电压补偿
    • US4253442A
    • 1981-03-03
    • US60878
    • 1979-07-26
    • Werner JundtBernd BodigGerd HohneGeorg PfaffGerhard SohnerBernd Kalkhof
    • Werner JundtBernd BodigGerd HohneGeorg PfaffGerhard SohnerBernd Kalkhof
    • F02P3/04F02P3/045F02P3/05F02P1/00
    • F02P3/051
    • 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.
    • 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。
    • 8. 发明授权
    • Internal combustion engine ignition system
    • 内燃机点火系统
    • US4253443A
    • 1981-03-03
    • US109625
    • 1980-01-04
    • Karl SeegerWalter RufGerhard SohnerWerner Jundt
    • Karl SeegerWalter RufGerhard SohnerWerner Jundt
    • F02P3/045F02P7/067F02P1/00
    • F02P7/0672F02P3/0456
    • 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.
    • 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 。