Engine speed control

Details Engine speed control Engine speed control

1994-02-28

1995-11-07

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

12333911, 123352, F02D 4116, F02D 4300

Patent

active

054639930

ABSTRACT:
Internal combustion engine speed is controlled through a nested plurality of compensation loops each of which is dedicated to exclusively addressing engine control processes and the delays associated therewith. State observers provide predicted state values to the plurality for generation of desired state values at a subsequent cylinder event. Feedforward compensation is included to compensate for substantially constant engine loads of known magnitude while such loads are determined to be applied. Ignition timing advance compensation is favored for small speed errors or when rapid response is required, and engine inlet air rate compensation is favored for large speed errors or when slower response can be tolerated.

REFERENCES:
patent: 4237838 (1980-12-01), Kinugawa et al.
patent: 4625281 (1986-11-01), Deutsch
patent: 4658783 (1987-04-01), Janetzke et al.
patent: 4660519 (1987-04-01), Stocker et al.
patent: 4709674 (1987-12-01), Bianchi et al.
patent: 4957083 (1990-09-01), Nakaniwa et al.
patent: 5094213 (1992-03-01), Dudek et al.
patent: 5121726 (1992-06-01), Di Nunzio et al.
patent: 5133319 (1992-07-01), Ikeda et al.

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