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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.

Andy Palmer leaves Renault-Nissan to serve as CEO of Aston Martin

Aston Martin has been without a helmsman since Ulrich Bez stepped down from the chief executive office at the end of last year, stepping back to serve as non-executive chairman in a semi-retired ambassadorial capacity. The British automaker, now on the cusp of a new era, has been running without a CEO since, but has now named Bez's replacement in Andy Palmer.
If you don't recognize the name, you should: Palmer has worked under the Renault-Nissan Alliance for decades now, rising through the ranks to become one of the top executives under Carlos Ghosn. Most recently he was serving as executive vice president of the entire group and chairman of the Infiniti brand, but like Carlos Tavares, who recently left Renault to run Peugeot, Palmer is now embarking on a new mission as CEO of Aston Martin.
Once the transition period is complete at the start of October, Palmer's role as Chief Planning Officer at Renault-Nissan will be assumed by Philippe Klein, who steps up from his current role as executive vice president of product planning for Renault. Read the statements from both companies below.

Infiniti finally adds Apple CarPlay and Android Auto for 2020

Infiniti is finally bringing Apple CarPlay and Android Auto into its 2020 model year lineup. The capability comes via the company’s next generation of Infiniti infotainment systems it announced today. ItÂ’s still called Infiniti InTouch and uses the same dual-screen setup, but the smartphone connection capability is completely new. Previous to this announcement, no Infinitis supported either Apple CarPlay or Android Auto, even the recently redesigned QX50 crossover. The Japanese luxury brand has been one of the last holdouts in terms of smartphone connectivity. Almost every 2020 Infiniti will gain the next-gen software for the 2020 model year — the QX60 is the only model that wonÂ’t get it. The next-gen InTouch system is also capable of being a Wi-Fi hotspot for as many as seven devices, so your gang of QX80 passengers can all be on Wi-Fi. Maps for the navigation system are also improved. A 3D city view was added in addition to Google Street satellite imagery. Infiniti says pairing your phone via Bluetooth will be easier, as it has streamlined the interface and adopted a new Bluetooth module and faster processor. Infiniti also promises more stability in the phoneÂ’s pairing to the car on account of the new Bluetooth module. WeÂ’ll note that Infiniti chose to go with a wired Apple CarPlay/Android Auto connection. Others like BMW, Audi and Ford (just announced) are going the wireless route, with mixed success. The two connectivity features will also be standard. If you're considering an Infiniti and Apple CarPlay and Android Auto are important to you (it probably should be), then waiting for 2020 is a good idea.