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    • 41. 发明专利
    • Ignition timing detecting device for diesel engine
    • 点火时间检测柴油发动机装置
    • JPS59203876A
    • 1984-11-19
    • JP7959383
    • 1983-05-07
    • Toyota Motor Corp
    • IKEDA SHINJI
    • F02P17/10F02B3/06F02D35/02F02D41/14F02D41/40F02P17/12G01M15/10
    • G01M15/10F02B3/06F02D35/022F02D35/028F02D41/1497F02D41/402F02D41/408Y02T10/44
    • PURPOSE: To detect correct ignition beginning timing and control fuel injection correctly by catching the first ignition light only when a plural times of the ignition lights are detected in the combustion stroke of one cycle.
      CONSTITUTION: A voltage signal, outputted from a photodiode PD, is amplified by a voltage amplifier 10, voltage shaping of the signal is effected by a comparator 11 and the signal is inputted into the set terminal S of R-S flip flip circuit 13. A reset signal S
      4 is inputted into the reset terminal R of the circuit 13 at every 720° CA based on a crank angle signal. Accordingly, the output signal S
      5 of the circuit 13 is taken out as one signal even in case the output of the comparator 11 exists a plural times in one revolution of the engine. According to this method, only the first combustion light may be detected at all times even in case the combustion light is detected two times in one combustion stroke, whereby the correct fuel injection control may be effected.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:仅在一个循环的燃烧冲程中检测到多次点火灯时,才能通过捕捉第一个点火灯来正确检测点火开始时间并正确控制燃油喷射。 构成:从光电二极管PD输出的电压信号由电压放大器10放大,信号的电压整形由比较器11进行,信号输入到RS翻盖电路13的设定端子S.复位 信号S4每720度被输入到电路13的复位端R。 CA基于曲柄角信号。 因此,即使在比较器11的输出在发动机的一圈中存在多次的情况下,也将电路13的输出信号S5作为一个信号取出。 根据该方法,即使在一次燃烧行程中检测到燃烧光两次的情况下,也可以始终检测第一燃烧光,由此可以进行正确的燃料喷射控制。
    • 45. 发明专利
    • IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    • JPS5688962A
    • 1981-07-18
    • JP16531679
    • 1979-12-18
    • NIPPON DENSO CO
    • TAKAGI IWAO
    • F02P3/045F02P3/05F02P15/00F02P15/10F02P17/00F02P17/10F02P17/12
    • PURPOSE:To correctly detect the secondary side resistance of an ignition coil and prevent an electrode to be sooted, by installing the calculating circuit for the secondary side resistance of the ignition coil and the apparatus for preventing sooting of a spark plug, in the ignition apparatus of an internal combustion engine. CONSTITUTION:When an ignition signal generator 14 generates ignition signal in synchronization to an internal combustion engine, a power transistor 5 flows and cuts the primary current of an ignition coil 3 corresponding to the ignition coil signal. To the secondary side of this ignition coil 3, a spark plug 4 is connected. The secondary side resistance R of the ignition coil 3 is calculated by the secondary side current I2 of the ignition coil 3 which is detected through a secondary current detecting resistor 8 and the primary voltage V1 of the ignition coil 3 in a secondary side resistance calculating circuit 10. When the secondary side resistance R becomes above the standard value with which the electrode of the spark plug 4 becomes sooty, the comparison circuit 11 operates which generates sooting detecting output, and sooting is eliminated by a multi-ignition circuit 13. Thus, the secondary side resistance R is detected correctly, and electrode sooting can be eliminated.