Nissan Motor Co. Ltd. has developed two types of continuously variable transmissions for vehicles sold in Japan. They include the world's first installation on a rear-drive production car with a large-displacement engine.
The Extroid CVT will be used in the Cedric and Gloria sedans. Sales begin Nov. 8.
In a conventional CVT, a system of belts and pulleys varies the speed ratio between the engine and the wheels. Instead of being belt-driven, the Extroid CVT uses discs and power rollers.
Until now, CVTs have been limited in their ability to handle large amounts of torque. But the Extroid system, Nissan says, was designed for the Cedric and Gloria's 3.0-liter turbocharged engine.
The Extroid system also is 10 percent more fuel efficient than a conventional automatic transmission.
Even though a CVT comes with an unlimited amount of gearing within its top and bottom ratio, the Extroid has six shift steps to give the feel of manual shifting.
Nissan expects to sell about 200 units a month with the CVT. They will be priced between the equivalent of $44,225 and $52,112 at current exchange rates.
Nissan also has developed a CVT for cars powered by 1.0-liter and 1.3-liter engines. The Hyper CVT will be installed in a compact car coming this year. A new torque converter will improve acceleration from standing starts, especially on uphill slopes.