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Renault-Nissan reportedly partnering with Waymo on self-driving cars

The Renault-Nissan-Mitsubishi alliance will tie up with Alphabet Inc's Waymo to develop autonomous taxis and other services using self-driving vehicles, the Nikkei reported on Tuesday. Google's self-driving car company Waymo will work with the carmakers and announce a plan for the arrangement as early as this spring, the business daily reported. The partners are considering the joint development of unmanned taxis using Nissan vehicles and a system that handles reservation and payments, Nikkei said. A spokesman at the Renault-Nissan-Mitsubishi alliance, Nick Twork, said, "This (Nikkei) story is based on rumors and speculation. We have nothing to announce." Waymo did not immediately reply to a request for comment. Last month, Nissan Motor Corp said its board remained committed to the carmaker's alliance with Renault SA and Mitsubishi Motors Corp, after directors met to discuss the ongoing investigation into former chairman Carlos Ghosn and ways to bolster governance. Among the companies developing autonomous driving technology, Waymo is considered to be far in the lead in terms of test-fleet miles driven. It operates hundreds of vehicles in 25 U.S. locations, and is already operating a taxi service with paying customers in Chandler, Ariz. Related Video:

Renault-Nissan-Mitsubishi pool $200 million to invest in tech startups

PARIS — The Renault-Nissan-Mitsubishi alliance is setting up a $200 million mobility tech fund, three sources said, in the latest move by major carmakers to adapt to rapid industry change by investing in startups through their own venture capital arms. The fund, due to be unveiled by Chief Executive Carlos Ghosn at the CES tech industry show in Las Vegas next Tuesday, will be 40 percent financed by Renault, 40 percent by Nissan and 20 percent by Mitsubishi. "It will allow us to move faster on acquisitions ahead of our competition," one of the alliance sources told Reuters. Frederique Le Greves, a spokeswoman for the Renault-Nissan-Mitsubishi alliance, declined to comment. The traditional auto industry model based on individual ownership is threatened by pay-per-use services such as Uber, as well as ride- and car-sharing platforms, a challenge heightened by parallel shifts towards electrified and self-driving cars. Wary carmakers are struggling to embrace changes and technologies that some of their executives are only beginning to grasp. To accelerate the process, many are investing directly in the new services — and gaining access to intellectual property — via their own corporate venture capital (CVC) funds. BMW has purchased stakes in a plethora of ride-sharing, smart-charging and autonomous vehicle software firms through its 500 million euro ($600 million) iVentures fund, the biggest such in-house facility belonging to a carmaker. Among others that have been increasingly active are General Motors' GM Ventures, with $240 million, and Peugeot-maker PSA Group's 100 million-euro investment arm. CVC funds, a familiar feature of innovative sectors such as tech and pharmaceuticals, have become more commonplace among carmakers since the 2008-9 financial crisis. They let companies skip some of the formalities otherwise required for new investments, and pounce more swiftly on promising startups. The Renault-Nissan-Mitsubishi venture will also obviate the current need to thrash out the ownership split for each new alliance acquisition. It represents a further step in the integration of the carmakers as they pursue 10 billion euros in annual synergies by 2022. France's Renault holds a 43.4 percent stake in Nissan, which in turn controls Mitsubishi. Ghosn heads Renault and chairs all three.

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.