Knock detecting apparatus for an internal combustion engine

Details Knock detecting apparatus for an internal combustion engine Knock detecting apparatus for an internal combustion engine

1980-03-31

1982-08-24

Argenbright, Tony M.

Internal-combustion engines

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

73 35, F02D 504

Patent

active

043455581

ABSTRACT:
The vibrations produced by the knocking in an engine and having frequencies in different frequency bands are detected by a vibration detector having a plurality of resonance frequencies. One of the detection outputs of the vibration detector is selected by a switching circuit or a filter circuit in accordance with the operating conditions of the engine. The ignition timing of the engine is corrected in accordance with the selected detection output.

REFERENCES:
patent: 4061116 (1977-12-01), Saida et al.
patent: 4233836 (1980-11-01), Yoneda et al.

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