Many of the advanced technologies and significant issues remain to be resolved before implementation. Inhibitors which could delay or preclude implementation might include unproven reliability, vehicle packaging issues and cost .vs. value as perceived by the customer.

Constant Variable Transmission

part 7 of 31

What it is :

A continuously variable transmission is an automatic that can select any desired drive ratio within its operating range. Unlike a traditional three, four or five speed automatic transmission, the CVT is an "infinite speed" transmission, the CVT continually selects an optimum overall drive ratio between engine and drive wheels for all operating conditions, whether accelerating or cruising. Unlike conventional automatics, there are no perceptible shifts. During maximum acceleration, the drive ratio is adjusted to maintain peak engine horsepower. At a constant vehicle speed, the ratio is set to maintain an engine rpm which will support the required power. A CVT provides smooth, fast accleration and high cruising efficiency with the convenience of an automatic transmission.

How it works :

The most common CVT design uses a segmented metal V-belt running between two pulleys of variable diameter. Each pulley consists of a pair of cones that can be moved close together or further apart to adjust the diameter at which the belt operates. The pulley ratios are electrically controlled to select the best overall drive ratio based on throttle position, vehicle speed and engine speed.

Customer benefit :

Performance, fuel economy improvement and smoother operation.

Ford Status :

Next generation technology under development

COPYRIGHT WWW.BlueOvalNews.Com

ALL RIGHTS RESERVED