technology overview xtronic cvting the cvt to high-torque engines. the result-ing xtronic cvt-m6 was...

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CONTINUOUSLY VARIABLE TRANSMISSION XTRONIC CVT Technology Overview

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Page 1: Technology Overview XTRONIC CVTing the CVT to high-torque engines. The result-ing XTRONIC CVT-M6 was the world’s fi rst CVT practicable for engine displacements as large as 3.5

C O N T I N U O U S LY V A R I A B L E T R A N S M I S S I O N

XTRONIC CVTTechnology Overview

Page 2: Technology Overview XTRONIC CVTing the CVT to high-torque engines. The result-ing XTRONIC CVT-M6 was the world’s fi rst CVT practicable for engine displacements as large as 3.5

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XTRONIC CVTTechnology Overview

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CVT Advantages

Exceptional transmission effi ciency for enhanced fuel economy The CVT’s outstanding environmental performance and economy make this innovative technology ideal for today’s and tomorrow’s vehicles.

Smooth ratio transitions for enhanced driving pleasureDriving pleasure is enhanced by the linear feeling of acceleration in response to accelerator pedal inputs.

Nissan offers CVTs in an extensive range of models

Quick to appreciate the CVT’s benefi ts of fuel economy and seamless acceleration, Nissan of-fered CVTs as early as 1992 in the March and Cube, followed by the 1.8-liter Primera and other models. Through technological innovation in CVT components, including the torque converter, oil pump, belt and control system, Nissan, in 2002, overcame the technological challenges to adapt-ing the CVT to high-torque engines. The result-ing XTRONIC CVT-M6 was the world’s fi rst CVT practicable for engine displacements as large as 3.5 liters. Today, Nissan’s CVT technology offers smooth and fuel-effi cient “fun-to-drive” perform-ance in an extensive range of Nissan models, from the compact class all the way up to high-powered luxury vehicles.

Seeking to bring the CVT’s outstanding perform-ance to even more customers, Nissan plans to ex-pand sales of CVT-fi tted models to around 1 million units worldwide in fi scal year 2007, up from about 250,000 in fi scal year 2004.

Nissan’s 3rd generation “XTRONIC CVT” further boosts acceleration and fuel economy

Better fuel economy for everyday drivingNissan’s basic approach to powertrains is to achieve an equally high measure of both environmental compatibility (fuel economy) and driving pleasure (acceleration performance). For the XTRONIC CVT, our efforts to improve fuel economy were not confi ned to catalog specifi cations, but encompassed the practical fuel effi ciency people seek in everyday driving situations. For example, the majority of Nissan customers drive mostly in urban and suburban areas and about 60% run the air conditioner year-round. In developing the XTRONIC CVT, we enhanced real-world fuel economy based upon simulations of typical driving conditions.

Powerful and satisfying acceleration feelCVT performance is characterized by stepless shifting and seamless acceleration. To refi ne these advantages, we signifi cantly improved gear shifting response in the XTRONIC CVT to provide tighter track-ing of accelerator pedal inputs, as well as quick and powerful accel-eration. In line with our emphasis on everyday driving conditions, we concentrated less on full throttle performance, and more on quickly responsive acceleration and smooth passing ability in urban traffi c.

The CVT (Continuously Variable Transmission) provides smooth and “stepless” ratio changes, unlike conventional transmission systems that use sets of fi xed gears. With its seamless acceleration and fuel economy benefi ts, the CVT has long been an object of Nissan’s R&D efforts, resulting in CVTs designed for a wide range of engines, from the 1.5-liter class to the 3.5-liter class.

CVT delivers enhanced fuel economy and seamless acceleration with a “direct” drive feel for enhanced AT driving pleasure.

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Seamless acceleration  4Improved response and effi ciency 5Improved dynamic performance and powerful acceleration feel 7

Enhanced acceleration feel

Response optimized for real-world conditions

Vehicle speed

Th

rott

le o

pen

ing

Congested traffi c

Suburban traffi c

Accelerator pedal depressed

Elapsed time

XTRONIC CVT

Conventional CVT

Acc

eler

atio

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CVT for 3.5-liter class engine

CVT for 2.0-liter class engine

CVT for 1.5-liter class engine