Method of and device for adaptive feeding forward a disturbance

Details Method of and device for adaptive feeding forward a disturbance Method of and device for adaptive feeding forward a disturbance

1985-04-26

1986-06-03

Wolfe, W. R.

Internal-combustion engines

Engine speed regulator

Idle speed control

123352, F02D 1110

Patent

active

045923205

ABSTRACT:
A method and a device for an adaptive forward feeding of a disturbance correcting signal in a regulator is based on storing an output signal from the regulator at a first time point t.sub.0 corresponding to the occurrence of a disturbance. At a later time point t.sub.1 when the disturbance has been settled by the regulator, a second output signal from the regulator indicative of the final integration level is compared with a stored signal and the difference signal is processed and combined with a constant disturbance correcting signal, thus producing another an adapted disturbance correcting signal which minimizes the deviation from a desired magnitude and at the input of the regulator. The processing of the adaptive correction signal at the output of the comparator is preferably made by an integration according to a preset formula of a plurality of differences produced from a plurality of forward switching actions before the second time point t.sub.1. The averaged adaptive correction signal is then applied at the time point t.sub.1 to a summing device where it is added to the constant disturbance correcting signal.

REFERENCES:
patent: 4425888 (1984-01-01), Engel et al.
patent: 4428341 (1984-01-01), Hassler et al.
patent: 4441471 (1984-04-01), Kratt et al.
patent: 4478183 (1984-10-01), Misch et al.
patent: 4513711 (1985-04-01), Braun et al.
patent: 4513712 (1985-04-01), Gassler et al.

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