Knocking discrimination apparatus

Details Knocking discrimination apparatus Knocking discrimination apparatus

1980-04-25

1982-06-08

Gill, James J.

Measuring and testing

Engine detonation

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

123425, G01L 2322

Patent

active

043333346

ABSTRACT:
A knocking discrimination apparatus in which an output signal derived from a knocking sensor is held at an almost constant level regardless of condition of an internal combustion engine by means of providing a control circuit therein for controlling the output signal of the knocking sensor to be held at the almost constant level, and further the above constantly held output signal of the knocking sensor and a constantly settled reference signal are compared with each other for discrimination of knocking, so that such a remarkable effect can be obtained that the reliability of the discrimination of knocking is improved exceedingly on account of a reliable reference signal for comparison ensured by being maintained at a constant level persistently and stably.

REFERENCES:
patent: 4233836 (1980-11-01), Yoneda et al.

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