Injection quantity control device of internal combustion engine

Details Injection quantity control device of internal combustion engine Injection quantity control device of internal combustion engine

2006-12-05

2006-12-05

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S478000

Reexamination Certificate

active

07143742

ABSTRACT:
An engine control unit (ECU) monitors an idling rotation speed of a diesel engine and predicts a tendency of an increase in an injection quantity occurring until an increasing rate of the injection quantity converges based on an initial tendency of an increase in the idling rotation speed. If the idling rotation speed exceeds a predetermined reference rotation speed, the ECU performs correction (counter control) for reducing the injection quantity. Thus, an increase in the injection quantity due to changes in hardware with time can be eluded, and an increase in an engine output due to the increase in the injection quantity can be inhibited. Therefore, damages to the diesel engine due to an excessive increase in the engine output can be prevented.

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patent: 5904128 (1999-05-01), Shimada et al.
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patent: 6845747 (2005-01-01), Rasmussen et al.
patent: 10-288070 (1998-10-01), None

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