2014 Nissan Armada Sv on 2040-cars

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Recharge Wrap-up: Nissan e-NV200 Workspace, Audi Shared Fleet pilot in NC

Nissan has collaborated with Studio Hardie to create the e-NV200 Workspace mobile office. The one-off electric van includes a desk space, touchscreen PC, pop-up coffee machine, Wi-Fi, wireless charging, mini fridge, pull-out rear deck, and app-controlled lighting. The e-NV200 Workspace allows freedom to work to work in a variety of places while avoiding the high rent of city center office space. It also eliminates the added cost and time of traveling to work. There's even a storage mount inside the van for a folding bike to facilitate for when you want to leave the office behind. Check it out in the video above, and read more from Nissan. Audi is launching a pilot program of its on-demand Shared Fleet service in Durham, North Carolina. With Audi Shared Fleet set to debut around the country next year, the pilot program will be housed at the American Underground technology incubator in Durham for this initial trial. Users will be able to book and unlock the fleet's 2017 A4 sedans using the Audi Shared Fleet app. The program will help Audi refine the service ahead of its nationwide launch. Learn more from Audi. The Illinois Solar Energy Association (ISEA) is raffling off a Tesla Model S as part of a fundraiser. In its Green Your Ride contest, the ISEA will pick a winner from 2,500 tickets sold at $100 apiece (or four for $300). If the winner doesn't need a car, or doesn't want to pay the associated taxes and fees, they can opt instead for $60,000 cash. Second and third prize winners get a Tesla Model S for Kids by Radio Flyer, or $500. If less than 2,000 tickets are sold, the winner takes half the raffle proceeds, while the ISEA will use the rest in its mission to promote solar power. Read more at ValueWalk.

Nissan gives us the business on the art of clay modeling

The team from The Dashboard recently stopped by the Nissan Technical Center in Japan for a look at what exactly goes into creating a full-scale clay model. While automakers have been using clay bucks for decades, designers and engineers are now combining computer renderings and hand-sculpted clay models to determine how a new vehicle will look in our world. Engineers use specially formulated clay kept warm in an oven to bring the body panels to life. They then coat the clay in a thin plastic film to add body color for the final look.
By the time everything is said and done, workers may have hundreds of hours in the model's creation. So, what happens when the company no longer needs the buck? They get scrapped. Someone comes in and dismantles the whole creation. We presume that action is set to the wailing tears of everyone who had a hand in building the model. Check out the video below for a closer look.

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.