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Renault chairman dismisses reports Nissan wants to split from alliance

PARIS — Renault Chairman Jean-Dominique Senard said on Thursday there was a "real desire" within the top ranks of both companies for its alliance with Nissan to succeed, dismissing suggestions the partnership was on the rocks. Turmoil within the Franco-Japanese alliance, long dogged by internal rivalries, deepened following the November 2018 arrest in Tokyo of its architect and long-time boss Carlos Ghosn on charges of financial crimes, which he denies. Attempts to restore calm were dealt a fresh blow by Ghosn's dramatic flight from Japanese justice and a series of no-holds-barred allegations he has made from his refuge in Lebanon, including that he was the victim of a plot to oust him and that the alliance is now a "masquerade". Nissan has vigorously rejected Ghosn's stance, while both the Japanese firm and Renault have tried to rubbish suggestions their two decades old partnership is falling apart. "We have a board overseeing the alliance which is made up of people who are all extremely in favor of the alliance," Renault Chairman Senard told a briefing with reporters. "There is a common desire to associate our strategic plans and a real desire to make this alliance a success," he added, dismissing a report that Nissan was examining scenarios for a possible future outside of the alliance as "fake news." The 66-year-old declined to comment on anything related to Ghosn, adding: "I only think about the future." Renault shares were down 2% by 1123 GMT, underperfoming the broader auto sector which was down on news that Washington has threatened to impose tariffs on European car imports due to Europe's stance on Iran. Renault's French rival and Peugeot maker PSA Group also gave a flavor of some industry headwinds, reporting a 10% fall in its global sales last year as Chinese demand tanked. Renault is due to publish its 2019 global sales on Friday. JOINT PROJECTS Analysts see Renault-Nissan's cost-saving alliance as vital to both companies as the car industry battles a slowdown and huge investments in cleaner vehicles and automated driving, particularly as rivals PSA and Fiat Chrysler are merging to help meet these challenges. Renault held ultimately unsuccessful talks to combine with Fiat Chrysler last year, which Ghosn described at a Beirut news conference as a huge missed opportunity. Senard, who chairs the alliance's operating board, said on Thursday that once the partnership has been rebooted, other firms might potentially want to join.

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.

Recharge Wrap-up: Nissan, Tesla report CO2 savings, rare earth metal recycling simplified

A new process simplifies the recycling of rare earth metals. While the strong magnetic properties of metals like neodymium and dysprosium make them useful in electric vehicles traction motors, there are concerns about their availability and the environmental costs of mining them. Researchers at University of Pennsylvania have developed an easier method to recycle those metals that is less energy intensive and more cost effective. "We have designed a way to separate the two metals by selectively dissolving the neodymium in a solution and leaving behind the dysprosium as a solid," says Justin Bogart, a graduate student working on the project. "This quick and easy method has allowed us to separate equal mixtures of the metals into samples that are 95 percent pure." Now the team is working to improve that level of purity. Read more from University of Pennsylvania. Nissan Leaf drivers in Europe have saved over 55,000 tons of CO2 emissions. Worldwide, the 178,074 Leafs sold account for the prevention of over 293,000 tons of CO2 emissions so far. That equates that to the neutralizing effect of 19 million trees. Besides the positive effects on environmental and noise pollution that switching to electric mobility provides, Nissan also points out that it's good business, too. EVs like the Nissan Leaf and e-NV200 cost about 40 percent less than combustion vehicles to maintain, and the cost of electricity is substantially lower than that of fossil fuels. Additionally, Nissan has published a video of the Leaf touring Bristol to celebrate the greening of European cities with the help of electric vehicles. See the video, and read more from Nissan. Tesla customers have driven a cumulative 1 billion miles. Together, nearly 75,000 Model S drivers have prevented more than 570,000 tons of CO2 emissions worldwide. To put that in perspective, a billion miles is the equivalent of 4,186 trips to the moon, and almost 40,000 trips around the Earth. In the UK, where the Model S is celebrating its one-year anniversary, drivers have already accumulated 6.6 million miles. Tesla is celebrating its milestone with the Next Billion Miles Tour, hosting hands-on events and test drives in 80 cities across North America, Europe and Asia. See the video from Tesla above, visit the One Billion Miles microsite and read more in the press release below.