Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1988-09-07
1990-01-09
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Fuel injection system
123630, 36443104, 36443111, 371 164, 324380, F02P 515
Patent
active
048920738
ABSTRACT:
An ignition system for internal combustion engines comprises means for generating an ignition signal in synchronism with the revolution of an internal combustion engine and an ignition circuit device for interrupting a primary current of an ignition coil in accordance with the ignition signal. The ignition circuit device includes an ignition monitor signal producing circuit for producing an ignition monitor signal which circuit operates to set the ignition monitor signal at the time of starting the energization of the ignition coil and thereafter to reset the ignition monitor signal at a subsequent predetermined timing, whereby the ignition circuit device operates, in accordance with the pulse width and the set and reset conditions of the ignition monitor signal, to decide whether the operation of the ignition circuit device is normal or abnormal, to control to generate a predetermined amount of ignition energy, and to prevent erroneous generation the ignition monitor signal due to a noise or the like.
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Hashimoto Kenji
Ito Yasuo
Kato Kouichi
Matsui Takeshi
Sasaki Kiyotaka
Nippondenso Co. Ltd.
Wolfe Willis R.
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