Apparatus and method for controlling idle rotation speed learnin

Details Apparatus and method for controlling idle rotation speed learnin Apparatus and method for controlling idle rotation speed learnin

1996-11-19

1998-02-24

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

12333922, F02D 4304

Patent

active

057202567

ABSTRACT:
When conditions for purging fuel vapor from a canister, and conditions for learning an idle rotation speed materialize together, then purge concentration is computed. If the purge concentration is low, purge is prohibited, and learning is carried out, while if the purge concentration is high, learning is prohibited and purge is carried out. In this way, erroneous learning due to carrying out purge during learning can be avoided, and the opportunity for purging can be maintained.

REFERENCES:
patent: 5228421 (1993-07-01), Orzel

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