Fuel supply control system for internal combustion engine with f

Details Fuel supply control system for internal combustion engine with f Fuel supply control system for internal combustion engine with f

1988-10-05

1990-09-18

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Including means responsive to instantaneous change in engine...

123480, F02D 4104

Patent

active

049570838

ABSTRACT:
A fuel supply control system introducing the feature of learning in assuming or projecting an intake air flow rate while an engine driving condition is maintained in a sonic flow range, in which intake air path area is maintained substantially constant and intake air flow rate is varied linearly according to variation of an engine speed. The system also detects the engine driving condition in the sonic flow range and the engine speed maintained substantially constant to derive a basic fuel supply amount on the basis of boost pressure. The assumed intake air flow rate is derived on the basis of the basic fuel supply amount and the engine speed. The system derives the basic fuel supply amount on the basis of the assumed intake air flow rate and the engine speed when the engine speed varies within the sonic flow range.

REFERENCES:
patent: 4155332 (1979-05-01), Yaegashi et al.
patent: 4604703 (1986-08-01), Hasegawa
patent: 4637362 (1987-01-01), Yasuoka et al.
patent: 4664090 (1987-05-01), Kabasin

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