Method of detecting deterioration of automatic transmission flui

Interrelated power delivery controls – including engine control – Transmission control – Including fluid drive

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477 65, 477176, B60K 4102

Patent

active

056650248

ABSTRACT:
A method of determining the deterioration of automatic transmission fluid by detecting shudder during the EMCC portion of air conditioner clutch engagement. Shudder is detected by calculating the acceleration of the turbine during EMCC slip with the following equation:

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