Continuously Variable Transmission

FEATURE ARTICLES | 2025-06-04

Hedging Your Bets on e-Mobility and Electrification

At CTI Symposium USA 2025, the automotive industry discussed the challenges it faces in the fields of electric drives, power electronics, battery systems, e-machines and more. This year’s symposium examined topics such as EV and plug-in hybrid technology, e-motors, thermal management, automotive market analysis, passenger and commercial vehicles and the latest on powertrain solutions for work trucks.

FEATURE ARTICLES | 2023-03-21

The High Demands of Off-Highway Drive Systems

The following off-highway, construction and mining solutions hint at the all-electric transition taking place across each industry.

VOICES | 2013-04-01

Am I Wasting My Time

Reader John Pellegrino looks for advice on his pursuit of a positively engaged continuously variable transmission.

PUBLISHER'S PAGE | 2013-04-01

Chasing the Dream

Over the past several weeks, I've had quite an interesting back-and-forth e-mail conversation with John Pellegrino, an engineer, inventor and dreamer whose letter appears on page 8.

FEATURE ARTICLES | 2008-10-01

The Ikona Clutch and Differential

This paper describes two devices—a clutch and a differential— which are based on the Ikona continuously variable transmission (CVT).