Ignition range detector for internal combustion engine

Details Ignition range detector for internal combustion engine Ignition range detector for internal combustion engine

1981-11-02

1983-09-13

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

73115, G01M 1500

Patent

active

044035055

ABSTRACT:
The pressure in the cylinder Pi(-.THETA.A) at the fixed angle -.THETA.A preceding to maximum ignition advance at the time of each combustion is determined from the output signal of a pressure detector for detecting the pressure in the cylinder of the internal combustion engine. The pressure in the cylinder Pi(+.THETA.B) at a predetermined angle +.THETA.B during the expansion process is also determined. It is decided whether the ratio Pi(+.THETA.B)/Pi(-.THETA.A) is larger or smaller than a predetermined value .beta. thereby to detect an ignition range always regardless of the running conditions of the internal combustion engine.

REFERENCES:
patent: 2919576 (1960-01-01), Weller, Jr. et al.
patent: 4003248 (1977-01-01), Leichle

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