Ignition timing control appartaus for an internal combustion eng

Details Ignition timing control appartaus for an internal combustion eng Ignition timing control appartaus for an internal combustion eng

1988-09-28

1990-03-06

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

36443108, F02P 515, F02P 512

Patent

active

049056484

ABSTRACT:
An ignition timing control apparatus for an internal combustion engine includes a pressure detector for detecting an inner pressure of cylinder of the engine,
a crank angle detector for detecting a crank angle of the engine, and a control device which receives the detection signals of the pressure detector and the crank angle detector so that an effective calorific value Q of fuel in one ignition cycle and an effective combustion rate K of fuel or a low level calorific value Hu of fuel are calculated on the basis of an inner pressure of cylinder P(.theta.) at a crank angle in compression and expansion strokes in the one ignition cycle, the crank angle .theta. and a cylinder capacity V(.theta.). Ignition timing is controlled based on at least one of the effective calorific value Q and the effective combustion rate K.

REFERENCES:
patent: 4397285 (1983-08-01), O'Neill
patent: 4466408 (1984-08-01), Cheklich
patent: 4788854 (1988-12-01), Javaherian

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