TATESHINA, Japan -- When cruising along at about 65 kph on a sheet of super-slick ice, it pays to have an ultraresponsive vehicle stability system that won't skate you right off the road.
Nissan's new e-4orce all-wheel-drive technology, offered in the new Ariya electric crossover, keeps the driver in control, even in situations like this, thanks to its sophisticated software and motor setup.
On a recent test of the system on a frozen lake, high in the snow-draped mountains of central Japan, an e-4orce-equipped Ariya sprung quickly off the start with zero slippage, braked with ease in an unwavering beeline and proved nearly impossible to oversteer on an icy skid pad.
The all-electric awd system debuted last summer and is so far deployed in only two nameplates -- the Ariya and the X-Trail sold in Europe and Japan. But expect to see more of it as Nissan positions e-4orce as one of the killer apps in its coming wave of electrified vehicles.
The technology is tailored to make the most of electric-motor mobility and can be deployed in Nissan's all-electric vehicles or its e-Power hybrid models. In these powertrains, only electric motors turn the wheels, allowing for ultraquick, super-accurate tweaking of torque.

In Nissan's previous-generation Intelligent 4x4 setup, chassis control and drive control were executed through different electronic control units in parallel channels.
The new e-4orce system, by contrast, combines all computations in one electronic control unit for faster reaction and more precise power adjustment.
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It then channels the signal to two sets of electric motors -- one for the front axle, the other for the rear. The setup allows for a wide band of power splitting, delivering up to 100 percent to the front axle and up to 100 percent to the rear. The system then blends that power distribution with independent braking control on the right and left side.
The result, Nissan says, is better grip, tighter curve tracing and smoother braking. The system works precisely on ice and is equally effective on winding country roads or rain-drenched city streets.
X-Trail and Rogue
The X-Trail, sold as the Rogue in the U.S., was the first vehicle to get the e-4orce setup in July. On the X-Trail, it is available only in the e-Power series hybrid versions, which use a gasoline engine as a generator to create the electricity that powers the motors.
Nissan has introduced e-Power with e-4orce in the X-Trail in Europe. Versions of the SUV with both systems start at 44,400 euros and rise to 55,730 euros in Germany.
There are no plans to deploy an e-Power version of the Rogue to the U.S. anytime soon.

The e-Power X-Trail gets a high-power variable compression, turbocharged 1.5-liter engine that can recharge the battery at a quicker rate, helping the electric drive system cope with the faster speeds and demanding acceleration of European roads.