Determining degradation of an idle air throttling device

Details Determining degradation of an idle air throttling device Determining degradation of an idle air throttling device

2005-09-20

2005-09-20

Mohanty, Bibhu (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S339240

Reexamination Certificate

active

06945222

ABSTRACT:
A method to determine degradation of an idle air throttling device in an internal combustion engine. Degradation is determined in a manner that may permit evaluation of both the idle air throttling device and expected engine operating conditions.

REFERENCES:
patent: 4875456 (1989-10-01), Tomisawa
patent: 5408871 (1995-04-01), Lieder et al.
patent: 5857163 (1999-01-01), Trombley et al.
patent: 6158420 (2000-12-01), Ohsaki et al.
patent: 6848418 (2005-02-01), Summers et al.

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