Jatco introduces CVT8 and CVT8 Hybrid transmissions

Jatco has announced a new continuously variable transmission for midsize and large front-wheel drive vehicles, offering an improvement of 10% in fuel economy compared to earlier models.

Designed for application with 2.0 to 3.5 litre engined vehicles, the CVT 8 features a ratio spread of 7.0:1, which is around 15% higher than current models. Friction is 40% down for the unit, which features Adaptive Shift Control as part of the kit.

The new ratio has been obtained by combining smaller shaft diameter pulleys with a new and differently shaped belt, which is flatter, and the range of ratios between the two pulleys has been expanded with only minimally increased axial distance.

Elsewhere, a more compact oil pump, the use of specially formulated low viscosity oil and an interface increase between the pulleys and the belt – to reduce neccessary oil pressure – as well as modification to 60% of the component parts have translated to the lowered friction.

The CVT8 is to be introduced next year, debuting in vehicles in North America, and will be built in both Mexico and Japan. The company has also announced the CVT8 Hybrid, developed in conjuction with Nissan. The system incorporates an electric motor and two clutches into the unit, offering a compact, versatile powertrain that does not require a specially designed body. Nissan plans to release a new hybrid vehicle with this system in the US in 2013.

© 2011 Paul Tan's Automotive News. All Rights Reserved.

This story originally appeared on Paul Tan's Automotive News on Wed, 07 Dec 11 05:08:56 +0000.

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