"In addition to selling the only mass-market all-electric no-emissions vehicle in the world – the LEAF – Nissan is continuing its efforts to bring innovation to all with notable tech enhancements to its vehicles powered by internal-combustion engines. This includes recently unveiling two next-generation powertrain systems that will help U.S. drivers achieve higher levels of fuel efficiency beginning in 2012.
The automaker’s all-new XTRONIC continuously variable transmission (CVT), designed specifically for engines with 2.0 to 3.5 liters of displacement, is set to reach North American products starting next year. The advanced transmission builds on Nissan’s longtime industry leadership role in CVT technology with:
- Ratio coverage of a full 7.0 – the widest of any CVT in the world for the aforementioned engine sizes – providing enhanced drivability
- 40 percent less friction for further fuel-economy gains
- The latest version of Nissan’s Adaptive Shift Control, which adapts a vehicle’s shifting patterns to better match different driving styles and road conditions
Thanks to upgrades like these, the new transmission is expected to significantly reduce unwanted powertrain noise and help eliminate over-revving, while also reducing fuel consumption by up to 10 percent – and more when mated to the automaker’s affordable new hybrid propulsion setup. It’s a system that integrates a compact lithium-ion battery, two separate clutches, a leading-edge electric motor and a 2.5-liter supercharged engine, all in a streamlined package that affords the same power as a 3.5-liter V6, but with much better fuel economy." [Continue reading...]
No comments:
Post a Comment