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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.

Hyundai reveals new i20 hatchback ahead of Paris debut

If you had ever traveled overseas and rented a Hyundai Getz, you'll likely have gotten why it was the butt of jokes: it Getz you from A to B, but not much more. But like the company that makes it, the Korean supermini is all grown up now, long since eschewing the punchline nameplate for the i20 moniker. And here is its latest successor.
Set to be unveiled at the Paris Motor Show this fall, the new i20 is Hyundai's rival to the likes of the Ford Fiesta, Volkswagen Polo, Toyota Yaris and such. Designed in Europe for the European market, the new i20 stretches its wheelbase nearly two inches longer than its predecessor (and four and a half inches longer than the knees-in-your-chest Getz) to offer best-in-class legroom and cargo capacity.
Hyundai also says the new i20 is the first in its segment to offer an opening panoramic sunroof. While we wouldn't exactly call the styling "exciting" (especially in that shade of brown), penned at the company's European design center in Rüsselsheim, Germany, it certainly does look more mature... which, we take it, is kinda the point.

2016 Hyundai Sonata PHEV will be a 50-state car, sort of

Technically, the upcoming 2016 Hyundai Sonata Plug In Hybrid will be available in all 50 states. It will just be a lot easier to get in the ten ZEV states. That's because in the 40 states that do not follow California's Zero Emission Vehicle regulations, Hyundai dealers will not be stocking the plug-in version of the Sonata when it goes on sale in the fall of 2015. In the ten ZEV states (California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Rhode Island, Vermont), Hyundai will stock and sell the PHEV Sonata just like any other model, with numerous colors and trim levels available on dealer lots. In the other 40 states, "we're not going to encourage dealers to stock them," because the company expects demand to be low, said Mike O'Brien, Hyundai's vice president of corporate and product planning. O'Brien was speaking at a launch event for the two new Sonatas in California this week. Hyundai has a reason for choosing the ZEV states as a starting point, O'Brien said. "The ten states are spending more money on charging infrastructure, so you can park at work, you can park while you're in the grocery store, and you can charge your car while you're doing it." In any other state, where the plug-in infrastructure is weaker, a customer can order a PHEV Sonata just as if they were going to get a specific color Veloster that the local dealer didn't have in stock, O'Brien said. "It's really no different." "If you just look at the sales, basically all our competitors, over half of their plug-in hybrid sales are right here in the state of California," O'Brien said. "Usually, much more than half. If you cover the ZEV states, you're going to cover over 85 percent of the sales already. And we're going to make sure that our dealers can accommodate and customers that wish to buy outside those states." In other ways, the PHEV buying process will be similar. The customer can choose, at time of purchase, to rely on standard 110-volt outlets or to work with the dealer to install a Level 2, 240-volt charger at their home. Hyundai will train its dealers to offer a preferred partner's charger (Hyundai would not specify which company it will be working with). With 110, an empty-to-full charge of the 9.8-kWh lithium-ion polymer battery will take around nine hours, but with Level 2 it'll be around three hours. "The essential technical elements [of the PHEV] are the same as the hybrid," O'Brien said.