Knock detecting apparatus for internal combustion engine

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

1981-12-08

1984-01-10

Gill, James J.

Measuring and testing

Engine detonation

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

G01L 2322

Patent

active

044247044

ABSTRACT:
In a knock detecting apparatus for an internal combustion engine, a comparator receives at one input a knock detection signal from a knock sensor and at the other input a knock discrimination level signal produced by a knock discrimination level generator in accordance with the knock detection signal of the knock sensor. A mask circuit inhibits the passage of the comparison output signal of the comparator during a period in which a number of noises are generated from the internal combustion engine and at the same time interrupts the operation of the knock discrimination level generator.

REFERENCES:
patent: 4002155 (1977-01-01), Harned et al.
patent: 4279143 (1981-07-01), Guipaud

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