Idle rotation speed learning control apparatus and method of eng

Details Idle rotation speed learning control apparatus and method of eng Idle rotation speed learning control apparatus and method of eng

1998-07-02

2000-01-25

Solis, Erick R.

Internal-combustion engines

Engine speed regulator

Idle speed control

F02D 300, F02M 300

Patent

active

060167874

ABSTRACT:
In an engine whose target air-fuel ratio during the idle state is set to a leaner value than a theoretical air-fuel ratio, the target air-fuel ratio is forcibly switched to the theoretical air-fuel ratio and the learning is performed, when learning a learning correction quantity of the idle rotation speed, and the learning performed by switching to said theoretical air-fuel ratio is executed only once during an on state of an ignition switch.

REFERENCES:
patent: 4602601 (1986-07-01), Kanai
patent: 4715344 (1987-12-01), Tomisawa
patent: 5018494 (1991-05-01), Sonoda et al.
patent: 5228421 (1993-07-01), Orzel
patent: 5839410 (1998-11-01), Suzuki et al.

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