Internal-combustion engines – Combustion chamber means combined with air-fuel mixture...
Patent
1991-05-07
1992-02-25
Wolfe, Willis R.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
36443108, F02P 515
Patent
active
050903837
ABSTRACT:
An ignition timing control apparatus for an internal combustion engine which comprises: pressure detecting means for detecting a pressure in a cylinder; knocking detecting means based on an output of the pressure detecting means; crank angle detecting means for detecting a crank angle; indicated mean effective pressure calculating means from the output of the pressure detecting means and an output of the crank angle detecting means; indicated mean pressure averaging means; load detecting means; revolution number detecting means from an output of the crank angle detecting means; running condition judging means for judging a running condition from an output of the load detecting means and an output of the revolution number detecting means; control means for controlling an ignition timing so that an average value of the indicated mean effective pressure is maximized, in a predetermined running condition of the engine determined by the running condition judging means; and contorl quantity memorizing means for memorizing an ignition timing control quantity in case when a knocking is not generated, which maximizes the average value of the indicated mean effective pressure outputted from the control means; said control means controlling the ignition timing, in a region in which the knocking is not generated, based on a memorized value of the control quantity memorizing means, when the knocking detecting means detects a knocking.
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Demizu Akira
Inoue Hitoshi
Mitsubishi Denki & Kabushiki Kaisha
Wolfe Willis R.
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