Fuel injection control device for internal combustion engine

Details Fuel injection control device for internal combustion engine Fuel injection control device for internal combustion engine

2006-10-24

2006-10-24

Dolinar, Andrew M. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S497000

Reexamination Certificate

active

07124740

ABSTRACT:
In feedback control of a discharge amount of a high pressure fuel pump in which an actual fuel pressure is caused to become a target fuel pressure, when a deviation between the target fuel pressure and the actual fuel pressure has transiently changed, updating of an integral term of the feedback control is stopped. As a result, needless updating of the integral term when the deviation of the target fuel pressure and the actual fuel pressure has transiently increased is inhibited, and fuel pressure overshoot is reliably suppressed.

REFERENCES:
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patent: 6474294 (2002-11-01), Yamazaki et al.
patent: 6715470 (2004-04-01), Takahashi
patent: 6840228 (2005-01-01), Yomogida et al.
patent: A 2000-205018 (2000-07-01), None
patent: A 2000-282927 (2000-10-01), None
patent: A 2001-263144 (2001-09-01), None

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