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Recharge Wrap-up: Elon Musk talks autonomous cars, Renault to run ZOE in ZENN Monte-Carlo Rally

Elon Musk discussed the autonomous driving capabilities of the Tesla Model S with NVIDIA CEO Jen-Hsun Huang. He said the car is already equipped with the hardware needed for highway driving. "Even with the current sensor suite, we could make the car go fully autonomous, but not a level of reliability that would be safe in, say, a complex urban environment at 30 miles an hour," says Musk. That would require "a bigger sensor suite, and you need more computing power." Huang and Musk also discussed car hacking and artificial intelligence during the interview at the 2015 GPU Technology Conference. See the video above, and read more at Teslarati. Renault will send four of its ZOE electric cars to the ZENN (Zero Emission, No Noise) Monte-Carlo Rally. The rally, which travels through the principality beginning and ending at the Port of Monaco, is open to electric cars with ranges of less than 250 kilometers (about 155 miles). Visitors can also explore an "electric village," which includes vehicle test drives and information about the future of automobiles. The race takes place from March 20 through 22. Read more in the press release from Renault below. A Seattle-area Nissan dealership has opened a "charging depot" with six fast chargers. Bellevue Nissan now claims to have a larger group of fast chargers than any other dealership in the country. The chargers are part of the NRG eVgo network, and will be available to drivers around the clock every day of the week. They'll also be part of Nissan's "No Charge To Charge" program for Leaf customers. Washington Governor Jay Inslee was on hand at the dealership for the opening, where he called such fast charging stations, "the backbone of our future transportation infrastructure." Read more at Hybrid Cars. A coalition of environmental groups and renewable energy advocates want New York to require all heating oil sold in the state to include at least two percent biodiesel. The proposal passed the Assembly's Committee on Environmental Conservation Tuesday. Its sponsor is Assemblyman Steven Englebright, a Long Island Democrat who says a biodiesel standard would reduce carbon emissions while boosting the state's agricultural industry. Supporters of a biodiesel standard include the New York League of Conservation Voters, the New York Public Interest Research Group and the state's Corn and Soybean Growers Association. Conventional oil companies are opposed.

Nissan to pursue FWD Nurburgring lap record with Pulsar Nismo

Europeans get very serious about their hot hatches. So do the Japanese. In fact there's been a whole back-and-forth lately over who makes the fastest one, and now Nissan looks set to throw its racing hat into the 'Ring.
That would be the Nürburgring, of course, where automakers trade bragging rights like baseball cards - only they don't give them up willingly. Renault set the front-drive lap record in 2008 with the previous Mégane R26.R then set the bar even higher with the Mégane RS 265 Trophy. That was before Seat stole the honors with its Leon Cupra 280, only for Renault to take them back again with the Mégane RS 275 Trophy-R. Seat is rumored to be considering a renewed assault, but it won't be the only one nipping at Renaultsport's heels in the coming years.
Honda, for its part, has made no secret of its ambition to set the record with the upcoming Civic Type R, and now word has it that Nissan is planning an assault of its own. Its weapon of choice would be an upcoming Nismo version of the new Pulsar hatchback which is just hitting the European market now as a rival to the Ford Focus, Volkswagen Golf, et al. There's no word on what its specs would be, but if it's going to challenge these players, it's going to need between 270 and 300 horsepower, a stiff suspension, big brakes and probably some sort of trick differential.

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.