DIAGNOSTIC SYSTEMS AND METHODS OF A CONTINUOUSLY VARIABLE TRANSMISSION

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DIAGNOSTIC SYSTEMS AND METHODS OF A CONTINUOUSLY VARIABLE TRANSMISSION

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NELSON STEPHEN / CARLSON RYAN D / KUHL AMERY D / HERRALA BRUCE E / OAKDEN-GRAUS JONATHON P / GILLINGHAM BRIAN R / GRAJKOWSKI KARL J / KALLIS JOHN F

Abstract

A vehicle diagnostic method of a vehicle including an internal combustion engine and a continuously variable transmission (CVT) operatively coupled to the internal combustion engine is disclosed. The vehicle diagnostic method comprises the steps of: detecting a plurality of engine crankshaft acceleration variation events; determining a frequency of the plurality of engine crankshaft acceleration variation events; determining a CVT belt interaction frequency of a drive belt of the CVT; and classifying the plurality of engine crankshaft acceleration variation events as one of an engine misfire event and a CVT belt damage event based on a comparison of the frequency to the CVT belt interaction frequency.

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Title :

DIAGNOSTIC SYSTEMS AND METHODS OF A CONTINUOUSLY VARIABLE TRANSMISSION

Additional title:

SYSTEMES ET METHODES DE DIAGNOSTIC D'UNE TRANSMISSION A VARIATION CONTINUE

Contributors:

NELSON STEPHEN (author) / CARLSON RYAN D (author) / KUHL AMERY D (author) / HERRALA BRUCE E (author) / OAKDEN-GRAUS JONATHON P (author) / GILLINGHAM BRIAN R (author) / GRAJKOWSKI KARL J (author) / KALLIS JOHN F (author)

Publication date :

2018-07-26

Type of media :

Patent

Type of material :

Electronic Resource

Language :

English