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Hyundai CVVD engine brings another dimension to valve timing

A new technology from Hyundai Motor Group places another marker on the march to more efficient internal combustion engines. Called Continuously Variable Valve Duration, the innovation permits two options for how long the intake valves remain open during the combustion cycle. The feature adds a third take on valve chicanery, atop variable valve timing that changes when valves open, and variable valve lift that changes how far valves open. Hyundai says the feature returns a 4% improvement in performance, a 5% increase in fuel economy, and lowers emissions by 12%. Hyundai applied for two patents on the valvetrain process in South Korea in 2011 and again in 2015. The altered valve duration in this latest iteration is made possible by two movable arms inside the camshaft. Each arm is anchored at its base to a pin at the center of the camshaft, while the end of each arm extends toward the edge of the camshaft. Changing the position of the pin in the center of the camshaft changes the angle of the arms relative to one another, which moves the camshaft along its mounting rod. Voila, a new intake cam profile that either lengthens or shortens valve overlap.   During low-speed spells at low load, CVVD opens the intake valve from the middle to the end of compression stroke. The weaker detonation isn't a factor at low load, and the reduced friction during compression improves fuel economy. During heavy engine loads, the intake valve closes at the beginning of the compression stroke to maximize the amount of air mixed for detonation, boosting torque. Four additional features enhance the benefits of CVVD. A more powerful direct injection system increases fuel spray pressure from 250 bar to 350 bar. Hyundai doesn't go into details on its Integrated Thermal Management System, but says the ITMS "quickly heats or cools the engine to the optimal temperature." Low-friction components lower overall engine friction by 34 percent. And a low-pressure exhaust gas recirculation layout diverts low-pressure exhaust gas from the traditional EGR route to the turbocharger compressor under high load for better fuel efficiency.   The first engine to boast the new tech is the Smartstream G1.6 T-GDi four-cylinder, which produces 180 horsepower and 195 pound-feet of torque. It will appear in the 2020 Hyundai Sonata Turbo going on sale in South Korea later this year.

2016 Hyundai Sonata Hybrid starts at $26,825

The pieces are coming together for exactly what's on offer in the 2016 Hyundai Sonata Hybrids. We were able to drive the regular gas-electric and plug-in hybrid versions and were impressed with the feel behind the wheel, but before you know the price, it's tough to tell if the car makes any real sense. While the price for the PHEV is still shrouded in mystery, we at least now know how much it'll cost for the non-plug Sonata hybrid: $26,825, including $825 for destination. That's the same as the 2015 hybrid model. For comparison, the 2016 Ford Fusion Hybrid starts at $25,675 and the 2015 Honda Accord Hybrid comes in at $30,125. That's the base cost, which gets you the cloth interior and projector headlights. The 2016 Sonata Hybrid Limited starts at $30,100 ($900 more than before), which ups the 16-inch alloy wheels to 17-inch alloys and magically turns the interior to leather and the headlights to HID Xenon. If you want 60/40 split-folding rear seats, you'll need to opt for the Limited version. You can also tack on the Limited Ultimate Package for $4,500. The Limited Ultimate Package further improves the car's safety (with lane departure warning and forward collision warning) and sound (with the Infinity premium audio system). The LUP also adds a panoramic sunroof and an eight-inch nav system. Overall, there are seven exterior colors and five interior options. The PHEV price has not yet been announced, but whatever it is, Hyundai has said it expects the car to qualify for a $4,919 tax credit from the federal government. Related Video: Featured Gallery 2016 Hyundai Sonata Hybrid: First Drive View 25 Photos News Source: HyundaiImage Credit: Copyright 2015 Sebastian Blanco / AOL Green Hyundai Hybrid Sedan

Hyundai's electric car strategy takes shape under the radar

Green car fans are frothing over the Tesla Model 3. The Chevy Bolt may turn out to be the better car, and it will be available sooner. But don't overlook another electric car that's also due next year: the Hyundai Ioniq. With far less attention, Hyundai is launching an EV that is expected to be competitively priced and will spearhead the Ioniq lineup, which also has hybrid and plug-in hybrid versions. They share the same platform and look similar, but the Ioniq EV could prove to be a game-changer for Hyundai when it arrives at the end of the year, bringing new customers and casting the company as one with proficiency in the electric arena. Built in South Korea, the Ioniq line will be available at every Hyundai dealership that wants to sell the cars, already giving it a leg up on Teslas that often have long waiting periods for buyers. With a range of 124 miles on a single charge, it won't compete with the Model 3, which will travel at least 215 miles on a charge, or the Bolt, which has a range of 238 miles. Rather, it will face off against humbler products like the Nissan Leaf (107 miles) and the Volkswagen E-Golf (83 miles). Hyundai has not announced pricing, but is mindful the Ioniq trails Chevy and Tesla in range. An executive also indicated it could be working on an Ioniq with a longer distance capability, but declined to discuss specifics. Hyundai argues its found a sweet spot with the Ioniq EV, whose range is well within the distance most Americans drive in a day. It can recharge in about four hours and 25 minutes, which is faster than the six-hour charge time for the Leaf but slightly longer than the four-hour E-Golf. In quick charge mode, the Ioniq can juice up to 80 percent in 23 minutes. Critically, Hyundai is also offering a lifetime warranty on all of its hybrid and electric battery packs (it has since 2012), which could sway consumers still wary of the technology. It's a lot of numbers, and Hyundai will need considerable marketing muscle to make buyers consider Ioniqs in the face of a growing field of electrified competitors. But it's part of a broader play to reach an audience of younger consumers, who expect electrification to be baked into their cars. Millennials will account for 40 percent of new car purchases by 2020, and Hyundai says the generation is more likely to consider alternative powertrains than older ones.