Electronic ignition system with pre-ignition prevention apparatu

Details Electronic ignition system with pre-ignition prevention apparatu Electronic ignition system with pre-ignition prevention apparatu

1994-07-28

1997-04-15

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123609, 123630, F02P 3055

Patent

active

056199686

ABSTRACT:
An electronic ignition system for a reciprocating engine includes a pre-ignition prevention control sub-system which acts as an independent monitor system to ensure the ignition system can only command a spark plug to fire when the next cylinder to fire is outside its pre-ignition zone. The pre-ignition prevention sub-system is independent from the circuitry which commands the spark plug to fire to ensure a single point failure of the system can not lead to a controller erroneously commanding a spark plug to fire in the pre-ignition prevention sub-system. An advantage of the present invention is the increased safety the pre-ignition prevention sub-system provides to the engine by significantly reducing the likelihood that fuel/air mixture within a cylinder will be ignited prematurely.

REFERENCES:
patent: 4112895 (1978-09-01), Habert
patent: 4245591 (1981-01-01), Nishida et al.
patent: 4409931 (1983-10-01), Lindberg
patent: 4520781 (1985-06-01), Nishida
patent: 4665884 (1987-05-01), Yoshida et al.
patent: 5014669 (1991-05-01), Takasaki et al.
patent: 5027774 (1991-07-01), Dutkiewicz et al.
patent: 5211138 (1993-05-01), Murray et al.
patent: 5213067 (1993-05-01), Kramer
patent: 5228294 (1993-07-01), Murray

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