1993-03-01

A New Approach to Finding Optimum Planetary Gear Trains for Automatic Transmissions 930676

There has been a growing need to develop more compact automatic transmissions with a greater number of speeds for better fuel economy and better driveability. This study investigated a method for determining suitable planetary gear trains for today's transmissions. A computer program has been developed for application to five-speed transmissions consisting of two planetary gearsets. By analyzing various gear train possibilities, the program can identify which gearsets are suitable for different conditions, including the number of speeds, the number of binding elements, topological suitability and other factors.

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.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

A Transmission Concept for Improving Fuel Economy and Making Driving More Fun

920769

View Details

TECHNICAL PAPER

Shift Modulation of Allison Automatic and Powershift Transmissions

730839

View Details

TECHNICAL PAPER

Improving Fuel Economy by Increasing Gear Steps of Automatic Transmissions

912483

View Details

X