2011 Nissan X on 2040-cars

Auto blog

Recharge Wrap-up: Renault EV movie, H2 fueling in Paris

Renault has debuted a new documentary called Le Peuple Electrique, or The Electric People. The film features two drivers touring France over the course of three weeks in a Renault Zoe electric vehicle. Along the way, the duo meet and come to rely upon other members of the EV driving community. Renault is showcasing the film at the COP21 summit in Paris to give an insight into the culture of electric vehicles. See the film above (it's in French), and read more in the press release from Renault.Nissan and Renault have joined forces for an ad campaign for their electric vehicles. The campaign, which focuses on the Nissan Leaf and Renault Zoe, coincides with the COP21 environmental summit, for which the automakers have supplied 200 electric cars as shuttles for attendees. The ad campaign consists of press, posters, and a series of six videos, each 15 seconds in length, to be shown on social media networks in France, the UK, Germany, Spain and Italy. Read more from Renault.Air Liquide has announced a hydrogen fueling station for fuel cell taxis in Paris. Electric taxi company STEP plans to launch a fleet of at least 70 Hyundai ix35 (Tucson) Fuel Cell taxis in the next five years. The fueling station will be located at Cours Albert 1er near the Eiffel Tower, so this is truly in the heart of the city. "This first station will allow us to promote the benefits of hydrogen as a clean energy for vehicles with consumers," says Air Liquide's Francois Darchis. "Hydrogen offers a concrete solution to the challenges posed by the issue of sustainable mobility, reducing greenhouse gas emissions as well as local pollution in urban areas." Read more from Air Liquide, or at Technologic Vehicles.The world's largest ultra-fast EV charging station is now operational in Beijing, China. Located at the Xiaoying Public Transit Bus Terminal, the station is capable of charging buses to 100 percent in as little as 10 minutes. It features 25 360-kW chargers and five 90-kW chargers, and enough space for 30 buses at a time. The buses come in to charge two or three times a day during their regular operation. Just in time, too. Read more in the press release below. World's Largest Ultra-fast EV Charging Station Goes Live in Beijing, Fully Charging Commercial Vehicles in 10 Minutes This 26,500 m(2) EV charging complex has 25 chargers at 360kW and 5 chargers at 90kW; maintaining a capacity for Ultra-fast charging 30 urban transit buses at the same time STAFFORD, Texas, Dec.

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.

Nissan Leaf battery cells put through torture test, live to charge again

One minor chink in the armor of the Tesla Model S is that a small number have caught fire, once their battery packs were penetrated. Nissan Leaf drivers, however, might just be able to weather such an event without an ensuing CarBQ. Our evidence for such a claim? A video that has surfaced of cells from a Leaf pack undergoing a battery of torture tests (pun somewhat-ashamedly intended). Shared by folks at the Hybrid Auto Center in Las Vegas – who offer for sale, among other things, used Leaf lithium battery modules – the footage shows salvaged cells being brutally assaulted with a screwdriver, and later, a propane torch. Granted, these tests are not the same thing as flinging a piece of metal into a working pack at 70 miles per hour, but they do claim to show that a puncture does not always equal a fire. Oh, and don't try this at home. When pierced through by the flat head tool, there is no explosion or eruption of flame. Instead, a rather modest wisp of smoke shyly emerges as the electrolyte next to the shorted area of the fully-charged foil pouch reacts with the influx of oxygen. Again and again, the blade descends, until the cell is riddled with holes. No fire. Amazingly, when connected with a voltmeter afterward there are still plenty of signs of life, and when it is charged and discharged (off-camera), it reportedly suffers only a slight loss of charge capacity. The video goes on to show another cell attacked with open flame with similar results. While the demonstration is, perhaps, somewhat crude, the message it sends is loud and clear: lithium batteries can be safe and rather robust, despite some freak accidents. Scroll below to watch the short presentation for yourself. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.