Abnormality detection apparatus

Details Abnormality detection apparatus Abnormality detection apparatus

1997-05-02

1998-06-02

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123198D, F02M 3704

Patent

active

057586284

ABSTRACT:
An abnormality detecting apparatus for a purge control system is capable of making an abnormality determination in a reliable and safe manner without a feeling of wrongness. A purge amount of a fuel gas is controlled in accordance with an intake pressure in an intake pipe and an amount of fuel in a fuel tank when abnormality determination conditions are satisfied. If abnormality determination conditions exist, a concentration of a fuel gas in a canister is taken into consideration.

REFERENCES:
patent: 5178117 (1993-01-01), Fujimoto
patent: 5477842 (1995-12-01), Maruyama
patent: 5520160 (1996-05-01), Aota
patent: 5535719 (1996-07-01), Morikawa
patent: 5613481 (1997-03-01), Kitagawa
patent: 5638795 (1997-06-01), Hara
patent: 5676118 (1997-10-01), Saito
patent: 5699775 (1997-12-01), Azuma

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