Air-fuel ratio control system

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

F - Mech Eng,Light,Heat,Weapons

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F02D 41/30 (2006.01) F02D 41/14 (2006.01) F02D 41/24 (2006.01) F02D 41/26 (2006.01) G05B 13/02 (2006.01) F02B 1/04 (2006.01)

Patent

CA 2168059

An air-fuel ratio control system which calculates a basic injection amount of fuel by state detecting sensors each of which detects an operating state of an internal combustion engine, air-amount detecting sensors each of which detects an intake air amount, an air-fuel ratio sensor, 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 reads values of the data detected by the sensors 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, which has learned beforehand about relations of the injected fuel amount, the detected air-fuel ratio, parameters, and dead time.

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