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Infiniti EV coming in 2021

Infiniti announced that it will offer new electrified vehicles starting in 2021. Nissan CEO Hiroto Saikawa said that its luxury brand will build its first all-electric car in 2021, as well as new "e-Power" vehicles – series hybrids with batteries charged by gasoline generators. Nissan has introduced e-Power vehicles in other markets, including the Note e-Power and the Serena e-Power minivan. Now it will extend that technology to Infiniti, providing a similar driving experience to an EV with the convenience of a gas-powered vehicle. Infiniti also said that we can expect "beautiful vehicles" like the Q Inspiration Concept that debuted at the 2018 Detroit Auto Show. Infiniti doesn't plan on producing the Q Inspiration, but it will certainly influence future vehicles in terms of both styling and technology. The Q Inspiration uses variable compression technology, which the company intends to use to improve efficiency and performance of its gasoline-powered cars. Infiniti expects half of its global sales to be electric vehicles by 2025 (it's not clear whether the automaker is lumping series hybrids into the electric vehicle category). And while there's no way that Infiniti will release a production version of its all-electric Prototype 9 EV, seen above, we'll hold onto that dream anyway. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Nissan Leaf Nismo RC Concept [w/video]

Nissan took the wraps off its Leaf Nismo RC Concept at the New York Auto Show more than two years ago. As inferred, the vehicle shares many of its pure-EV components with the production Leaf currently sitting in your dealer's showroom. But don't assume the concept is a placid, family friendly, four-place, front-wheel-drive plug-in for grabbing groceries - the RC (as in "Racing Challenge") is a purpose-built, two-seat, rear-wheel-drive prototype race car tuned for the short track.
The RC Concept is fitted with an 80-kW AC synchronous motor driving the rear wheels and drawing power from a 48-module lithium-ion battery. While the motor and battery are nearly identical to the consumer-friendly Leaf, a sleek full carbon-fiber monocoque body shell and a slew of other enhancements mean the RC is 40-percent lighter, a foot shorter in overall height and nearly seven inches wider than its commuter namesake. Nissan says the RC Concept will hit 62 miles per hour in about 6.8 seconds, top out at 93 mph and run for about 20 minutes under race conditions (it will accept an 80-percent charge in 30 minutes with a quick-charger). Understandably, if a zero-emissions motorsport series comes to fruition, the races would be short and nearly silent.
We caught up with the Leaf Nismo RC concept in Southern California, where we were offered the opportunity to zip it around a tight autocross at the former Marine Corps Air Station, El Toro.

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.