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    • 3. 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。
    • 5. 再颁专利
    • Ignition system dependent upon engine speed
    • 点火系统取决于发动机转速
    • USRE29862E
    • 1978-12-19
    • US793953
    • 1977-05-05
    • Herman RoozenbeekBernd BodigKlaus MeyerAdolf Fritz
    • Herman RoozenbeekBernd BodigKlaus MeyerAdolf Fritz
    • F02P3/045
    • F02P3/0453
    • An internal combustion engine is comprised of at least one engine cylinder, devices for introducing a combustion mixture into the cylinder, and an electrical igniting element operative for igniting the combustion mixture in the cylinder once per ignition cycle. An ignition transformer has a secondary winding connected across the igniting element, and also has a primary winding. A flow of current is established through the primary winding. An electronic switch is connected in the current path of the primary winding to control the flow of current through the primary winding. A triggering unit generates a train of crankshaft-synchronized triggering signals. A monostable control circuit has a trigger input for receipt of such triggering signals, and is operative when triggered into the unstable state for rendering and maintaining the electronic switch nonconductive for the duration of the unstable state, so as to interrupt the flow of current through the primary winding and induce across the secondary winding a voltage surge causing the igniting element to ignite the combustion mixture in the engine cylinder. When the monostable control circuit reverts to its stable state, it renders and maintains the electronic switch conductive for the duration of the stable state, whereby to establish a build-up of current flow in the primary winding in preparation for the next interruption of current flow. The monostable control circuit includes a timing stage operative for automatically .[.increasing.]. .Iadd.decreasing .Iaddend.the ratio of the duration of the unstable state to the duration of the ignition cycle with increasing engine speed within a predetermined range of engine speeds.
    • 6. 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。
    • 7. 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。
    • 8. 发明授权
    • Electronic engine control system with emergency operation mode
    • 电子发动机控制系统具有应急运行模式
    • US4531190A
    • 1985-07-23
    • US345225
    • 1982-02-03
    • Ulrich DrewsManfred MezgerBernhard SchmidtKarl SeegerGerhard SohnerHerman Roozenbeek
    • Ulrich DrewsManfred MezgerBernhard SchmidtKarl SeegerGerhard SohnerHerman Roozenbeek
    • F02P11/06F02P15/00F02P5/02G01R19/165
    • F02P15/008F02P11/06
    • To permit continued operation of a vehicle in spite of malfunction of an electronic ignition computer system, or any other electronic control module in an automotive vehicle, a transducer (10) provides an output to a trigger stage which has its output connected a digitally operating microprocessor (17) and to a bypass or transfer switch (21). The output from the microprocessor is connected to an analog and operating output stage (19, 20) to be controlled by the digital system of the microprocessor (17). Upon sensing of low operating voltage (U) as determined, for example, by a threshold switch (22), or of starting condition the switch (21) is closed, bypassing or interrupting connection to the microprocessor, and directly connecting signals from the transducer output stage to the input of the ignition circuit to permit operation under emergency conditions. The analog portion of the system is a single integrated module, separate from the digitally operating microprocessor (17) for ease of error diagnosis, maintenance and repair. This is particularly important with digitally operating control systems (17) which are subject to malfunction under low voltage conditions or upon occurrence of stray or distrubance signals in the network, for example under starting conditions.
    • 为了允许车辆的继续操作,尽管电子点火计算机系统或机动车辆中的任何其他电子控制模块发生故障,传感器(10)向触发级提供输出,该触发级的输出连接有数字操作的微处理器 (17)和旁路转换开关(21)。 微处理器的输出端连接到由微处理器(17)的数字系统控制的模拟和运行输出级(19,20)。 当检测到例如由阈值开关(22)确定的低工作电压(U)或开始状态时,开关(21)闭合,旁路或中断与微处理器的连接,并直接连接来自换能器的信号 输出级到点火电路的输入,以允许在紧急情况下运行。 系统的模拟部分是与数字操作微处理器(17)分开的单个集成模块,以便于错误诊断,维护和修理。 这对于数字操作控制系统(17)尤为重要,控制系统(17)在低电压条件下或在网络中发生杂散或扰乱信号时,例如在起动条件下发生故障。
    • 9. 发明授权
    • Motor ignition system control circuit for maintaining energy storage in
spark coil constant in wide speed range
    • 电机点火系统控制电路,用于保持火花线圈的能量存储在宽速度范围内恒定
    • US4176645A
    • 1979-12-04
    • US734745
    • 1976-10-22
    • Werner JundtGerhard SohnerPeter WernerHerman Roozenbeek
    • Werner JundtGerhard SohnerPeter WernerHerman Roozenbeek
    • F02P3/04F02P3/045F02P3/05F02P1/00
    • F02P3/0453
    • A monitoring resistor in series with the spark coil primary winding and the electronic interruptor switch provides a signal to an integrator for shifting the control thresholds of a threshold switch that controls the interruptor away from their quiescent values that are nearer the zero crossover of the timing voltage wave provided by an engine driven timing signal generator. The integrator output voltage remains constant during the time the interruptor switch is open. While current flows through the interruptor circuit, the integrator increases the control voltage until the primary winding current reaches a predetermined level and then decreases the control voltage until the timing wave recloses the interruptor. While the control voltage is being decreased, the coil current is allowed to rise to a limiting value and is then held constant by another circuit controlled by the monitoring resistor that slightly reduces the conductivity of the interruptor switch in its closed condition, but this occurs only while the engine is accelerating to the operating speed range. During this time the switch-on threshold for controlling the interruptor is raised towards the peak of the timing wave, but the switch-off threshold is clamped to its initial value. With further increase in engine speed, the net effect of the integrator operation changes sign and the switch-on threshold is lowered. As soon as the switch-on threshold goes below its initial value, the switch-off threshold is unclamped and is depressed along with the switch-on threshold towards the negative peak of the timing wave by the integrator action. The result is to keep the amount of energy stored in the spark coil at the time of primary circuit interruption constant over a wide range of speed.
    • 与火花线圈初级绕组和电子中断器开关串联的监测电阻器向积分器提供信号,以将控制该断路器的阈值开关的控制门限移离其偏离定时电压零交叉的静态值 由发动机驱动的定时信号发生器提供的波。 积分器输出电压在断路器开关断开期间保持恒定。 当电流流过中断电路时,积分器增加控制电压,直到初级绕组电流达到预定电平,然后减小控制电压,直到定时波重新闭合中断器。 当控制电压降低时,允许线圈电流上升到极限值,然后由监控电阻控制的另一个电路保持恒定,这样可以在闭合状态下稍微降低断路器开关的导通性,但这只会发生 而发动机正在加速到运行速度范围。 在此期间,用于控制中断器的接通阈值向着定时波的峰值升高,但关断阈值被钳位到其初始值。 随着发动机转速的进一步提高,积分器运行的净影响变化,降低了开启阈值。 一旦开启阈值低于其初始值,关闭阈值就被解除锁定,并且通过积分器动作将其与导通阈值一起压向定时波的负峰值。 结果是在主电路中断时保持在火花线圈中存储的能量的数量在宽的速度范围内是恒定的。
    • 10. 发明授权
    • Ignition system for internal combustion engines
    • 内燃机点火系统
    • US4328782A
    • 1982-05-11
    • US56963
    • 1979-07-12
    • Werner JundtHerman Roozenbeek
    • Werner JundtHerman Roozenbeek
    • F02P3/04F02P3/045F02P3/08
    • F02P3/0861
    • In order to reduce the amount of ignition energy supplied to an ignition coil during low speed operation of the engine, an electronic circuit is provided to regulate the open time of the ignition circuit to be constant in an upper engine speed domain and to then obey a predetermined characteristic in the mid-range. The mid-range control is gradually made ineffective at lower engine speeds where the open ignition interval is determined by speed as measured by the duty cycle of the engine ignition transducer. The change of characteristics is obtained with the aid of a control voltage source which generates a speed dependent control voltage causing the discharge time of a capacitor to be extended at low engine speeds and causing the termination of the open time of the ignition to be determined by the transducer output signal.
    • 为了减少在发动机的低速运转期间供给点火线圈的点火能量的量,设置电子电路以将点火电路的打开时间调节为在上部发动机转速域中恒定,然后服从 预定特性在中档。 在较低的发动机转速下,中距离控制逐渐变得无效,其中,通过发动机点火传感器的占空比测量,开启点火间隔由速度决定。 特性变化是借助控制电压源得到的,该控制电压源产生速度相关的控制电压,导致电容器的放电时间在低发动机转速下延长并且导致点火的打开时间的终止由 换能器输出信号。