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    • 3. 发明授权
    • Ignition system for internal combustion engine
    • 内燃机点火系统
    • US4105006A
    • 1978-08-08
    • US703780
    • 1976-07-09
    • Werner JundtPeter WernerBernd BodigGerhard SohnerHelmut Roth
    • Werner JundtPeter WernerBernd BodigGerhard SohnerHelmut Roth
    • F02P3/04F02P3/045F02P3/05F02P3/02
    • F02P3/051
    • Current flow to the ignition coil during low-speed operation of the engine, is controlled by an auxiliary control switch which is connected in shunt with the primary of the ignition coil. Serially connected with the primary is a main control switch which is controlled to close until current through the primary has reached a certain value, at which time the main switch opens and the shunt auxiliary switch is closed to permit continued inductive current flow through the coil and thus store ignition energy, the cycle repeating to maintain current flow through the primary at a level to store sufficient energy for the ignition spark which, at the ignition instant, effects opening of the shunt circuit by opening the auxiliary switch while also opening the circuit to the primary, thus providing a high-voltage pulse which provides for sparking of the spark plug. The sensor for current flow through the primary is preferably a resistor which, when the voltage drop thereacross exceeds a predetermined level, controls changeover of a transistor.
    • 在发动机的低速运行期间到点火线圈的电流流量由辅助控制开关控制,辅助控制开关与点火线圈的初级线路分流连接。 与初级系统连接的是主控制开关,其被控制为关闭,直到初级电流达到一定值,此时主开关打开并且分流辅助开关闭合,以允许持续的感应电流流过线圈, 因此存储点火能量,循环重复以维持电流流过初级,以保持点火火花的足够的能量,该点火火花在点火瞬间通过打开辅助开关来实现分流回路的打开,同时打开电路 从而提供高电压脉冲,其提供火花塞的火花。 用于流过初级电流的电流传感器优选是电阻器,当超过预定电平的电压降时,控制晶体管的切换。
    • 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。
    • 7. 发明授权
    • Ignition system with overvoltage and excess current protection
    • 点火系统具有过压和过流保护
    • US4244344A
    • 1981-01-13
    • US040070
    • 1979-05-17
    • Peter WernerWerner JundtHerman RoozenbeekBernd Bodig
    • Peter WernerWerner JundtHerman RoozenbeekBernd Bodig
    • F02P3/04F02P3/045F02P3/05F02P3/055H03K17/082F02P1/00H05B41/36
    • H03K17/0826F02P3/0552
    • In a known ignition system, the emitter-collector circuit of the ignition transistor is connected in series with the primary winding of the ignition coil and with a precision resistor. When the voltage across the latter exceeds a predetermined value, an auxiliary transistor is switched to a conductive state. The emitter-collector circuit of the auxiliary transistor is connected to the base of the ignition transistor and, when conductive, prevents further increases of current through the primary winding of the ignition coil. To protect this circuit, a series circuit including two Zener diodes is connected between the base and collector of the ignition transistor. Further, a voltage divider is connected in parallel with the emitter-collector circuit of the ignition transistor and an additional resistor is connected between the base and the emitter thereof. When overvoltages across the primary winding cause breakdown of the Zener diodes, the current through the Zener diodes is blocked from the emitter-collector circuit of the auxiliary transistor either by a diode or by a blocking transistor having an emitter-collector circuit connected in parallel with the base-emitter circuit of the auxiliary transistor. The blocking transistor is maintained in the conductive state blocking the auxiliary transistor throughout the application time of an externally applied blocking signal which is adapted to maintain the ignition transistor in the blocked state.
    • 在已知的点火系统中,点火晶体管的发射极 - 集电极电路与点火线圈的初级绕组和精密电阻串联。 当后者的电压超过预定值时,辅助晶体管被切换到导通状态。 辅助晶体管的发射极 - 集电极电路连接到点火晶体管的基极,并且当导电时,防止通过点火线圈的初级绕组的电流的进一步增加。 为了保护该电路,包括两个齐纳二极管的串联电路连接在点火晶体管的基极和集电极之间。 此外,分压器与点火晶体管的发射极 - 集电极电路并联连接,附加电阻连接在基极和发射极之间。 当初级绕组上的过电压引起齐纳二极管的击穿时,通过齐纳二极管的电流被辅助晶体管的发射极 - 集电极电路阻断,或者由二极管或具有与 辅助晶体管的基极 - 发射极电路。 在外部施加的阻塞信号的施加时间内,阻塞晶体管保持导通状态,阻止辅助晶体管,其适于将点火晶体管保持在阻塞状态。
    • 8. 发明授权
    • Ignition system for internal combustion engine
    • 内燃机点火系统
    • US4204508A
    • 1980-05-27
    • US868869
    • 1978-01-12
    • Werner JundtBernd BodigHerman RoozenbeekPeter Werner
    • Werner JundtBernd BodigHerman RoozenbeekPeter Werner
    • F02P3/04F02P3/045F02P3/05F02P3/00
    • F02P3/0453
    • A transistor switch connected in series with the primary winding of the ignition coil permits and blocks current flow through the coil when in a conductive and non-conductive state respectively. Normally, the switch is "on" and "off" respectively in the presence and absence of an ignition current pulse furnished in synchronism with the rotation of the crankshaft of the engine. For increasing speeds, the time the switch is "on" prior to the ignition time is increased by switching it to the conductive state when the charge on a control capacitor reaches a predetermined charge. The charge on the control capacitor is changed in a first direction following receipt of each ignition signal. The rate of change of charge depends upon the resistance of the emitter-collector circuit of a first control transistor. The latter is, in turn, determined by the charge on an integrator capacitor which varies with changes in engine speed. When the charge on the control capacitor reaches a predetermined charge, the output transistor switch to the conductive state allowing current flow in the ignition coil.
    • 与点火线圈的初级绕组串联连接的晶体管开关分别在导通状态和非导通状态时允许并阻止电流通过线圈。 通常,在存在和不存在与发动机的曲轴的旋转同步的点火电流脉冲的情况下,开关分别为“开”和“关”。 为了提高速度,在点火时间之前开关“接通”的时间通过在控制电容器上的电荷达到预定电荷时将其切换到导通状态来增加。 在接收到每个点火信号之后,控制电容器上的电荷在第一方向上改变。 电荷变化率取决于第一控制晶体管的发射极 - 集电极电路的电阻。 后者又由积分器电容器的电荷决定,该电容随着发动机转速的变化而变化。 当控制电容器上的电荷达到预定电荷时,输出晶体管切换到允许电流在点火线圈中流动的导通状态。
    • 9. 发明授权
    • Ignition system
    • 点火系统
    • US4174696A
    • 1979-11-20
    • US869627
    • 1978-01-16
    • Werner JundtBernd BodigHeinz DeckerGunther SchmidtBert WurstKarl SeegerHerman Roozenbeek
    • Werner JundtBernd BodigHeinz DeckerGunther SchmidtBert WurstKarl SeegerHerman Roozenbeek
    • F02P3/04F02P3/045F02P3/05F02P15/10F02P5/04
    • F02P15/10F02P3/053
    • A switch connected in series with the ignition coil is "on" and "off," respectively, in the presence and absence of a pulse furnished by a pulse generator operating in synchronism with the crankshaft of the engine. If the pulse width of the pulses is too small for the current in the ignition coil to reach the minimum value required for ignition, the closing time of the series switch is advanced, while if the pulse width is too long, causing excess heat dissipation in the coil, the closing time of the switch is retarded. To accomplish this, a first digital counter counts downwards for a predetermined time and upwards for a time period in which the current in the ignition coil exceeds a predetermined current. Upon interruption of the current in the coil, the then-present value in the first digital counter is transferred to a second digital counter. The second counter then counts down at a predetermined rate until a predetermined count is reached. At this time, the series switch is switched to the conductive state.
    • 在与发动机的曲轴同步运行的脉冲发生器的存在和不存在的情况下,与点火线圈串联的开关分别为“开”和“关”。 如果脉冲的脉冲宽度对于点火线圈中的电流来说太小,达到点火所需的最小值,则串联开关的闭合时间将提前,而如果脉冲宽度太长,则会导致多余的散热 线圈,开关的闭合时间被延迟。 为了实现这一点,第一数字计数器在点火线圈中的电流超过预定电流的时间段向下计数预定时间和向上计数。 在线圈中的电流中断时,第一数字计数器中的当前值被传送到第二数字计数器。 然后第二个计数器以预定的速率递减计数,直到达到预定计数。 此时,串联开关切换到导通状态。
    • 10. 发明授权
    • Low-speed compensated ignition system for an internal combustion engine
    • 内燃机低速补偿点火系统
    • US4356808A
    • 1982-11-02
    • US317284
    • 1981-11-02
    • Bernd BodigWerner Jundt
    • Bernd BodigWerner Jundt
    • F02P3/05F02P3/045F02P5/04F02P1/00
    • F02P3/0453
    • A switching transistor (7, 9) is serially connected with the primary (5) of an ignition coil; current flow therethrough is controlled from an a-c signal generator (16) with respect to an ON threshold level (Ue) to store electromagnetic energy, and an OFF threshold level (Ua) to generate a spark; a variable conductivity circuit (26) controlled from a sensing resistor (8) modifies the response level of the threshold switch (13) with respect to the null or cross-over level of the applied signal. To prevent excessive current flow under idle-speed conditions, in accordance with the invention, the ON threshold level, at least, of the switch is shifted by introducing an auxiliary bias voltage derived from an auxiliary capacitor (36) and connected (37, 38) by the signal source through a diode (38) which prevents application of an auxiliary bias voltage to the threshold switch (13) under extremely low, e.g. starting conditions, permits application of the additional bias voltage providing for shift of the ON response level (Ue) under idling conditions, but again loses control as the speed continues to increase, and control by the variable conductivity circuit takes over.
    • 开关晶体管(7,9)与点火线圈的初级(5)串联连接; 从a-c信号发生器(16)相对于ON阈值电平(Ue)控制电流流动以存储电磁能量和OFF阈值电平(Ua)以产生火花; 从感测电阻器(8)控制的可变电导率电路(26)相对于所施加的信号的零值或交叉电平来修改阈值开关(13)的响应电平。 为了防止在怠速条件下的过大电流,根据本发明,至少开关的导通阈值电平通过引入从辅助电容器(36)导出并连接的辅助偏置电压(37,38 )由信号源通过二极管(38),二极管(38)防止在非常低的范围内向阈值开关(13)施加辅助偏置电压,例如 启动条件允许施加额外的偏置电压,提供空载条件下的ON响应电平(Ue)的移动,但随着速度持续增加而再次失去控制,并且可变电导率电路的控制接管。