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Ghosn predicts autonomous cars on the roads by 2018, if laws allow

Things appear to be going well inside Nissan's autonomous vehicle development program. Until now, the automaker believed that self-driving cars would be ready for major markets like the US by 2020. However, Renault-Nissan CEO Carlos Ghosn is now speeding up that prediction to 2018 in some places, assuming that local laws are ready to accept the computer-controlled vehicles.
"The problem isn't technology, it's legislation, and the whole question of responsibility that goes with these cars moving around," said Ghosn in a speech in France recorded by Reuters. He predicted that the first sales could begin in France, Japan and the US by 2018 and expand elsewhere in 2020.
The alliance has been among the forefront of automakers working on self-driving cars. Nissan has an autonomous Leaf (pictured above) test car that is licensed to drive on Japanese roads. Renault showed off an version of its Zoe EV earlier this year called the Next Two, that could pilot itself at speeds up to 18 miles per hour, and that the company predicted would be ready by 2020.

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 pulled planned reveal of longer-range Leaf from L.A.

The arrest and detention of its former chairman, Carlos Ghosn, prompted Nissan at the last minute to pull the plug on plans to debut a longer-range version of its Leaf battery- electric car at the Los Angeles auto show, The Wall Street Journal reports. Nissan instead showed two mild-refresh models for 2019 — the Maxima sedan and the Murano crossover. It had reportedly hoped to make a bigger splash by unveiling the upgraded Leaf with actress and brand ambassador Margot Robbie at a media event at the Japanese American National Museum. It went ahead with an event at the venue, showing current models of the Leaf and holding the Nissan Futures event, the first time the series of panel discussion and keynote addresses had been staged in the U.S., with Robbie sitting down for a brief interview about owning an EV and sustainability issues. "The official announcement regarding details of the 2019 Nissan Leaf with additional performance capabilities is postponed to a later date," the company said in a statement. A spokesman told the Journal the postponement was "to ensure that this important product unveiling could receive the coverage it merits." Ghosn was arrested Nov. 19 in Japan on allegations of financial misconduct, including what Nissan has said was personal use of company money and deliberately under-reporting what he had been paid. Both Nissan and alliance partner Mitsubishi have ousted Ghosn as chairman, though his status remains unchanged for now at Renault, the third member of the partnership where he is both chairman and CEO. Renault has appointed a stand-in replacement while Ghosn remains in custody. Reuters reports that Tokyo authorities extended Ghosn's detention a second time Friday and have until Dec. 10 to file charges or release him. The auto world has been widely anticipating a longer-range version believed to be called the Leaf E-Plus, with a 60-kWh battery pack and an expected driving range of around 225 miles, up from the 40-kWh battery and 151-mile driving range of the current model. A recent report suggests that its starting price will be about $5,500 more than the 40-kWh version, meaning around $36,385 before federal EV tax credits. A spokesman tells Autoblog the postponement doesn't affect the new Leaf's on-sale date but added that date has yet to be announced.