Knock detecting device

Details Knock detecting device Knock detecting device

1980-04-18

1982-10-19

Gill, James J.

Measuring and testing

Engine detonation

Combustion signal compared to reference signal varied by a...

123425, G01L 2322

Patent

active

043543782

ABSTRACT:
A knock detecting device for modifying the ignition timing of individual cylinders of an engine, by using averaging circuits which are the same in number as the cylinders, a first distributing switch that distributes the output from a sensor detecting engine vibration to said averaging circuits, a second distributing switch selecting the outputs from the averaging circuits, a detecting means detecting the presence of knocking at each cylinder through comparison of the output from the sensor and the selected output from the averaging circuits, and a control means controlling the ignition timing of the individual cylinders in response to the output from the detecting means.

REFERENCES:
patent: 3950981 (1976-04-01), Arrigioni et al.
patent: 4002155 (1977-01-01), Harned
patent: 4240388 (1980-12-01), Omori et al.
patent: 4243008 (1981-01-01), Omori et al.

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