Fuel injection device

Details Fuel injection device Fuel injection device

2005-07-05

2005-07-05

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Starting device

With fuel or intake air control

C123S179001, C123S019000, C123S458000

Reexamination Certificate

active

06912983

ABSTRACT:
In a state in which a high-pressure control solenoid valve is driven to control the pressure in a common rail (refer to Step S100), when the pressure in the common rail exceeds a predetermined value (refer to Step S104), a driving current determined by a prescribed value map that defines the correlation between the pressure in the common rail and the driving current of the high-pressure control solenoid valve is corrected based on an actual pressure in the common rail and the driving current of the high-pressure control solenoid valve at the actual pressure (refer to Steps S106, 108, S110, 112). The corrected driving current is passed to the high-pressure control solenoid valve, thereby ensuring appropriate and stable injection control even when there exists a variation in operational characteristics among pressure control valves.

REFERENCES:
patent: 4487188 (1984-12-01), Inoue et al.
patent: 5839413 (1998-11-01), Krause et al.
patent: RE36119 (1999-03-01), Kunishima et al.
patent: 6267104 (2001-07-01), Monnier
patent: 10-54318 (1998-02-01), None

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