Fuel feed control system and method for internal combustion engi

Details Fuel feed control system and method for internal combustion engi Fuel feed control system and method for internal combustion engi

1996-02-01

1997-03-11

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

E02M 5100

Patent

active

056091397

ABSTRACT:
A fuel feed control system and method for an internal combustion engine is provided with a device for setting the quantity of fuel and a fuel injector for feeding fuel in accordance with the fuel quantity set by the fuel quantity setting device. The fuel quantity setting device is provided with a device for estimating the quantity of air to be inducted on the basis of the result of detection of the quantity of inducted air at an inducted air quantity detection time, inducted air quantity information detected before the inducted air quantity detection time and predicted information. The inducted air quantity estimation device is provided with a device for changing the predicted information so that, when a transient operation state of the engine is detected by a transient operation state detector, the estimated quantity of inducted air and a real quantity of inducted air become closer to each other. The control system permits setting of an accurate injection quantity of fuel by precisely measuring a quantity of inducted air even when the state of operation of the engine is in a transition period.

REFERENCES:
patent: 5345908 (1994-09-01), Nishimura et al.
patent: 5390641 (1995-02-01), Yamada et al.
patent: 5394849 (1995-03-01), Tomisawa
patent: 5423208 (1995-06-01), Dudek et al.
patent: 5441030 (1995-08-01), Satsukawa
English Abstract, Japanese Patent Publ. Laid Open (Kokai) No. Sho 59-15656, Jan. 26, 1984.
Hasegawa, Shiyunpei, English Abstract of JP HEI 4-19377, Jan. 26, 1984.

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