Fuel injection device

Details Fuel injection device Fuel injection device

2006-03-07

2006-03-07

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S458000

Reexamination Certificate

active

07007670

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), and 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: 5558068 (1996-09-01), Kunishima et al.
patent: 5598817 (1997-02-01), Igarashi et al.
patent: 5758622 (1998-06-01), Rembold et al.
patent: 5839413 (1998-11-01), Krause et al.
patent: RE36119 (1999-03-01), Kunishima et al.
patent: 6021763 (2000-02-01), Yoshihara et al.
patent: 6267104 (2001-07-01), Monnier
patent: 10-54318 (1998-02-01), None

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