Internal-combustion engines – Combustion chamber means combined with air-fuel mixture...
Patent
1980-10-30
1983-01-04
Cox, Ronald B.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
123435, 73 35, F02D 1110
Patent
active
043667929
ABSTRACT:
An angle of advance correction signal generator responsive to the presence of ping signals produced in a controlled ignition internal combustion heat engine of the type in which a pre-ping threshhold and a ping threshhold is determined and a pre-ping signal and a ping signal is produced in the event that a pre-pinging or a pinging condition is detected exceeding respective of said threshholds, wherein said pre-ping signal and said ping signal are produced for each cylinder of the engine taken successively in predetermined order. The generator includes a multiplexor for applying pre-ping and ping signals to respective processing circuits provided for respective cylinders. In the processing circuits predetermined numerical values are loaded into respective pre-ping and ping numerical counters, which are then decremented upon the occurrence of predetermined multiples of engine rotations. The pre-ping and ping counter outputs corresponding to each cylinder are added by an adder having an output indicative of advance angle, which is applied to an output stage for control of the advance of the respective engine cylinder.
REFERENCES:
patent: 4274379 (1981-06-01), Iwata
patent: 4300503 (1981-11-01), Deleris
patent: 4322800 (1982-03-01), Hisegawa
Cox Ronald B.
Regie Nationale des Usines Renault
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