Browse Publications Technical Papers 2014-01-1731
2014-04-01

Measurement of Oil Film Pressure on Running Continuously Variable Transmission Pulley - Part 2: Oil Film Thickness Calculation Based on EHL Theory 2014-01-1731

In order to maintain the performance of push belt Continuously Variable Transmissions (CVT) over a long period of time, it is important to acquire a fundamental understanding of lubrication performance between a pulley and a metal V-belt. This work examined oil film thickness using the contact pressure on a sliding surface of pulley sheave during driving, which was obtained with an uniquely developed measurement technique. The contact between a belt element and a pulley sheave was treated as a group of small elliptical contact zones. The pressure-viscosity characteristics of lubricant were assigned to Reynolds equation with Roelands experimental formula. Also, in order to increase convergence of the calculation, a multigrid method was used. Calculation results indicate that the oil film thickness at a peak contact pressure measured was approximately 0.3-0.4 μm.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
We also recommend:
JOURNAL ARTICLE

Measurement of Oil Film Pressure on Running Continuously Variable Transmission Pulley Part 1: Measurement Using Micro Data Logger System and Thin-Film Sensor

2014-01-1732

View Details

TECHNICAL PAPER

Development of Driving Force Control Technology of CVT for North American Market

2014-01-1730

View Details

TECHNICAL PAPER

Development of New Generation Continuously Variable Transmission

2014-01-1728

View Details

X