Digital control method

Details Digital control method Digital control method

1981-12-18

1985-08-13

Smith, Jerry

Boots, shoes, and leggings

364183, 36443105, 123500, G05B 1502

Patent

active

045354022

ABSTRACT:
A digital control method for controlling a relative rotational phase angle p.theta. or the like in a fuel injection pump of an automobile. Decision is made of whether two successive deviations Er between the detected values and a target value are larger than a minimum reference deviation Ero or not. If they are larger than the Ero, decision is made of whether the signs of both the deviations are positive and/or negative. If both signs are positive, a given duration dTs is added to a fundamental duration ts of the next command signal for control. If both signs are different, a predetermined duration dTs is subtracted from the fundamental duration ts of the next command signal.

REFERENCES:
patent: 3584203 (1971-06-01), Patzelt et al.
patent: 3914581 (1975-10-01), Gilson
patent: 4217862 (1980-08-01), Fort et al.
patent: 4235374 (1980-11-01), Walter et al.
patent: 4455867 (1984-06-01), Koyanagi

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