Injection control system of internal combustion engine

Details Injection control system of internal combustion engine Injection control system of internal combustion engine

2006-01-17

2006-01-17

Kwon, John T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S104000, C701S111000, C123S436000, C123S478000

Reexamination Certificate

active

06988030

ABSTRACT:
An electronic control unit (ECU) of an engine calculates a first modification value for decreasing a correction value of an injection period when a state variation of the engine caused by a single injection is greater than a target value. The ECU calculates a second modification value for increasing the correction value when the state variation is less than the target value. The second modification value is greater than the first modification value. Thus, a period necessary to converge the correction value can be shortened when the correction value is increased. The first modification value is increased if a difference between the state variation and the target value exceeds a permissible value when the correction value is decreased. Thus, the injection quantity is decreased quickly to prevent excessive fuel injection.

REFERENCES:
patent: 4800857 (1989-01-01), Tomisawa
patent: 4854287 (1989-08-01), Tomisawa
patent: 4881505 (1989-11-01), Tomisawa
patent: 5381767 (1995-01-01), Kikuchi
patent: 6244241 (2001-06-01), Mamiya et al.
patent: 2003/0164166 (2003-09-01), Takeuchi et al.
patent: 2004/0267433 (2004-12-01), Asano et al.
patent: 2004/0267434 (2004-12-01), Asano et al.
patent: 2003-185633 (2003-07-01), None

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