Systems and methods for predicting engine delta friction...

Details Systems and methods for predicting engine delta friction... Systems and methods for predicting engine delta friction...

2008-07-21

2010-11-23

Kwon, John T (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S335000, C123S435000

Reexamination Certificate

active

07836862

ABSTRACT:
An engine control system comprises a coolant temperature weighting module that generates a weighting signal based on coolant temperature. A composite temperature generating module generates a composite temperature based on the coolant temperature, an oil temperature and the weighting signal. A delta friction torque module calculates delta friction torque of an engine based on the composite temperature. An engine operating parameter module that adjusts an engine operating parameter based on the delta friction torque.

REFERENCES:
patent: 6341535 (2002-01-01), Yasui
patent: 7272487 (2007-09-01), Christen et al.
patent: 2002/0112472 (2002-08-01), Tashiro et al.
patent: 2005/0188953 (2005-09-01), Ishikawa et al.

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