|The Pivo EV|
Nissan Motor unveiled Pivo, an electric car concept, in partnership with renowned Japanese artist Takashi Murakami at the company’s Nissan Ginza Gallery in downtown Tokyo.
Pivo, which Nissan will show at the upcoming Tokyo Motor Show, features an innovative cabin that revolves 360 degrees, eliminating the need to reverse. Thanks to its compact body, the car is also exceptionally easy to maneuver.
Pivo is powered by Nissan’s high-performance lithium-ion battery and Super Motor, used in its X-Trail fuel cell vehicle (FCV) prototype, and the Effis FCV commuter car concept shown at the 2003 Tokyo Motor Show among others.
|Cutaway of the dual-rotor Super Motor. Click to enlarge.|
The Super Motor features dual rotors on both the inside and outside of a single stator, and can output power through two shafts under the application of a compound current. To avoid torque interference between the rotors, magnets having different numbers of pole pairs are used for the inner and outer rotors.
The Super Motor offers greater power density than conventional motors, but also increased heat generation. To address that issue, Nissan engineers placed the cooling system in between the stator teeth.
The Super Motor controls the power output of each shaft separately, making it possible to drive the right and left wheels independently, and is targeted for a variety of applications, including in fuel cell vehicles or as a generator in hybrid vehicles.