Developing Transmission Fluids with Enhanced Durability Afton Chemical Company

Format:

Conference/Event

Author/Creator:

Iyer, Ramnath N., author.

Conference Name:

Powertrain & Fluid Systems Conference and Exhibition (2007-10-29 : Chicago, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

1Fluids for new generations of step-automatic transmissions must provide durable service under severe conditions in a variety of environments. Fluid degradation under severe stress can lead to changes in frictional properties, potentially resulting in undesirable noise, vibration and harshness (NVH) events.This paper describes the development of a new transmission fluid that delivers significant improvement in squawk durability. The formulation approach resulted in optimum friction characteristics that are essential to overcome stress-induced loss of friction and to reduce NVH. A factorial design of experiments was used in the development process to relate additive effects with friction characteristics of both fresh and aged fluids. Friction durability after laboratory aging was compared with friction characteristics and durability data obtained from field-aged fluids

Notes:

Vendor supplied data

Publisher Number:

2007-01-3986

Access Restriction:

Restricted for use by site license