Engine feedback control embodying learning

Details Engine feedback control embodying learning Engine feedback control embodying learning

1996-09-17

1998-09-29

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

F02D 4114

Patent

active

058133909

ABSTRACT:
A feedback control system and method for operating an internal combustion engine to provide the desired air/fuel ratio under all running conditions. The feedback control operates when the engine is operating at a mid-range rotational velocity and throttle position and when the air/fuel ratio is between about 15 and 16 to 1 to modify the fuel/air ratio from that achieved by a basic setting that is derived from parameters of engine performance so as to maintain the desired ratio. The basic setting is updated based upon previous feedback control corrections in order to minimize the amount of corrections required and reduce hunting.

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patent: 5546916 (1996-08-01), Sudholt et al.

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