Internal combustion engine control apparatus

Details Internal combustion engine control apparatus Internal combustion engine control apparatus

2006-07-11

2006-07-11

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S339100

Reexamination Certificate

active

07073484

ABSTRACT:
An engine control apparatus includes: an operation state determining unit determining whether the engine is in the running or the idle-state from a various sensor's signal; an engine revolution speed detecting unit detecting the revolution speed of the engine from a signal of an external sensor; a running time control value setting unit which sets an open/close control value for an ISC valve to be increased during the running-state such that the valve opens as the engine revolution speed is increased; and idle time control value setting units to which set the open/close control value such that the engine reaches a preset target revolution speed during the idle-state, and provide a lower limit value to the open/close control value during a predetermined period after the engine is switched from the running to the idle-state and set the control value not to be smaller than the lower limit value.

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