Idle speed control apparatus and method for internal...

Details Idle speed control apparatus and method for internal... Idle speed control apparatus and method for internal...

2005-06-07

2005-06-07

Huynh, Hai (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S406520, C123S406530

Reexamination Certificate

active

06901908

ABSTRACT:
An idle speed control apparatus for an internal combustion engine is provided which, when the internal combustion engine is started in a cold mode, provides ignition timing engine speed control (m1) such that ignition timing in which said ignition driving device performs ignition in the internal combustion engine is retarded and the engine speed of the internal combustion engine is controlled to the target engine speed, and then provides intake air quantity engine speed control (m2) such that the engine speed of the internal combustion engine is feedback-controlled to the target engine speed by controlling the intake air quantity of the internal combustion engine. As a result, it is possible to prevent the exhaust gas temperature from being increased insufficiently due to a deficiency in retard angle, and to prevent the activation of a catalytic converter from being delayed.

REFERENCES:
patent: 6276131 (2001-08-01), Ueno et al.
patent: 6367446 (2002-04-01), Kanamaru et al.
patent: 6505594 (2003-01-01), Katayama et al.
patent: 6732504 (2004-05-01), Majima et al.
patent: 2004/0221834 (2004-11-01), Miyamoto et al.
patent: 10-299631 (1998-11-01), None

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