Ignition control system for internal combustion engine

Patent · Tue Jan 12 04:00:00 EST 1988

OSTI ID:5331030

Iwata, T

An ignition control system for an internal combustion engine is described comprising: signal generating means for generating an ignition timing signal synchronized with the rotation of the engine; an oscillator for generating a clock pulse; control means for calculating the energizing time of an ignition coil upon reception of the clock pulse from the oscillator and the ignition timing signal from the signal generating means; defect detector means for detecting the presence or absence of a defect of the clock pulse of the oscillator; and switching means controlled to be switched by the defect detector means for leading the output of the control means to an igniter when the clock pulse is normally outputted from the oscillator and leading the output of the signal generating means to the igniter when the clock pulse is abnormally outputted from the oscillator.

• Assignee: Mitsubishi Denki Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4718395
• OSTI ID: 5331030
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL SYSTEMS
DESIGN
ENGINES
HEAT ENGINES
IGNITION
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
PULSES
SIGNALS
SYNCHRONIZATION
TIMING PROPERTIES