Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-12-12
1996-02-20
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
123480, F02D 4104
Patent
active
054921015
ABSTRACT:
A fuel injection valve 15 is disposed in an intake passage 9 of an engine body 1. A combustion chamber 5 communicates with the intake passage 9 for introducing fuel injected from the fuel injection valve 15 at predetermined intake timings. A plurality of sensors are provided in the engine body 1 or fuel intake system for detecting various engine operational conditions including properties of fuel. A control unit 30 calculates a fuel quantity-of-state in the combustion chamber 5 in accordance with the engine operational conditions detected by the sensors, using an atomized fuel behavioral model representing behavior of fuel injected from the fuel injection valve 15, an intake passage fuel behavioral model representing fuel behavior in the intake passage 9 and a combustion chamber fuel behavioral model representing fuel behavior in the combustion chamber 5. Furthermore, the control unit 30 calculates a fuel injection amount required to adjust an actual gaseous air-fuel ratio in the combustion chamber 5 to a desired value in accordance with the fuel quantity-of-state thus calculated. The control unit 30 uses a cranking model as the combustion chamber fuel behavioral model before an initial explosion is detected and uses a firing model after the initial explosion is detected. The fuel injection valve 15 is opened or closed on the basis of the fuel injection amount thus calculated.
REFERENCES:
patent: 4357923 (1982-11-01), Hideg
patent: 4388906 (1983-06-01), Sugiyama et al.
patent: 4903668 (1990-02-01), Ohata
patent: 5390641 (1995-02-01), Yamada et al.
Morino Tetsuya
Saito Kimitaka
Takeda Keiso
Argenbright Tony M.
Nippon Soken Inc.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Fuel injection control apparatus for an internal combustion engi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel injection control apparatus for an internal combustion engi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel injection control apparatus for an internal combustion engi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1350660