Air-fuel ratio control system

Details Air-fuel ratio control system Air-fuel ratio control system

1996-01-26

1997-08-19

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123690, 123698, F02D 4114

Patent

active

056577370

ABSTRACT:
An air-fuel ratio control system which calculates a basic injection amount of fuel by state detecting sensors (21) each of which detects an operating state of an internal combustion engine, air-amount detecting sensors (22) each of which detects an intake air amount, an air-fuel ratio sensor (23), and a predetermined data group. Further, the air-fuel ratio control system stores past amount data of injected fuel and air-fuel ratio data at each control cycle. A neuro-computation unit (29) reads values of the data detected by the sensors (21,22) and the stored data to obtain an air-fuel ratio estimate to calculate a correction injection amount of fuel by a neural network of a forward neuro-computing unit (210), which has learned beforehand about relations of the injected fuel amount, the detected air-fuel ratio, parameters, and dead time.

REFERENCES:
patent: 5247445 (1993-09-01), Miyano et al.
patent: 5361213 (1994-11-01), Fujieda et al.
patent: 5477825 (1995-12-01), Hattori et al.
patent: 5535135 (1996-07-01), Bush et al.
patent: 5539635 (1996-07-01), Keeler et al.

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