Data sampling system for electronic engine controllers

Details Data sampling system for electronic engine controllers Data sampling system for electronic engine controllers

1981-10-28

1984-06-19

Lall, Parshotam S.

Internal-combustion engines

Charge forming device

Fuel injection system

123416, 123487, F02M 5100

Patent

active

044548451

ABSTRACT:
An electronic engine controller is disclosed for controlling selected operations of an internal combustion engine based upon engine operating parameters. The engine controller comprises a load sensor for generating an analog signal indicative of the value of engine load, and an A/D converter for converting the engine load indicative analog signal into digital form. The A to D conversion is synchronized with engine rotation by a data sampling circuit which includes a first circuit for determining, based upon engine speed, a desired position of an engine crankshaft with respect to an engine crankshaft reference position, and a second circuit responsive to the engine crankshaft rotating to the determined engine crankshaft position for providing a command signal to the A/D converter which thereby initiates the A to D conversion process.

REFERENCES:
patent: 4114573 (1978-09-01), Mori
patent: 4128885 (1978-12-01), Valek et al.
patent: 4175506 (1979-11-01), Sakamoto et al.
patent: 4345561 (1982-08-01), Kondo et al.
patent: 4354239 (1982-10-01), Kanegae
patent: 4355614 (1982-10-01), Hayashi et al.

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