2014 Hyundai Elantra Limited on 2040-cars

Auto blog

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.

Auto execs surveyed say VW, BMW most likely to grow

A new survey of top global automotive executives indicates both Volkswagen and BMW are the most likely to grow their market share over the next five years.
Tax advisory firm KPMG LLP has released its 14th annual Global Automotive Executive Survey, which includes responses from over 200 executives. A total of 81 percent of respondents said they expect to see Volkswagen make gains, compared to 70 percent last year. BMW, meanwhile, saw 70 percent of those surveyed say they believe the company will increase its market share. That's a jump of 7 percentage points over last year. This is the first time in the history of the survey that BMW has claimed the second-place spot.
Meanwhile, Hyundai has seen its perceived market share potential slacken for the third year in a row. Around 61 percent of those surveyed predicted gains for Hyundai, down from 63 in 2012. Toyota also has a surprising year, but for just the opposite reason. While the manufacturer had slipped in ranking since 2011, it enjoyed the largest increase of any company in the 2013 survey, jumping to 68 percent from 44 percent last year.

Second-generation Hyundai Veloster spied with same asymmetric doors

Until we saw these photos, the future of the Veloster didn't look especially bright. It's entering its fifth year on sale with no major updates, and no announcements for a replacement. It also was killed in the UK three years ago when it wasn't selling well. However, these photos show that Hyundai hasn't given up on it. At first glance, it looks very much like the current model, but closer inspection reveals some differences. Up front, the hood looks lower, and it tapers down to what seems to be an exaggerated version of the "cascade grille" Hyundai has implemented on the Elantra GT, and new Sonata. The headlights look slimmer, and there seem to be fewer busy, "quirky" lines. Moving backward, we find the same asymmetric door layout consisting of one door on the left, and two on the right. On the right side, the rear door handle is still tucked in the corner of the window. The glass area on the right also appears a bit larger thanks to a lower edge that stays lower for longer. At the rear, the camouflage is at its heaviest, but interesting details still show through. The rearmost glass seems to be more steeply raked. We can't tell if there's still glass on the top of the hatch, but considering the evolutionary nature of this car's design, we would expect the same amount of hatch glass. The taillights have adopted the slim and wide look of other recent Hyundai's. The center-exit exhaust remains, too, but it looks a bit smaller, and no longer has an obvious split in the middle. On either side of the bumper are auxiliary vents, likely fake. Besides the low sales and limited updates, another reason we questioned the future of the Veloster was its unremarkable driving dynamics. While forgivable in the base model, it was an issue on the Turbo, which simply wasn't fun enough to recommend over competitors. We're glad to see Hyundai will give it another shot, though, since the world can always use more quirky and interesting automobiles. Hopefully this next one will drive better. And who knows, it might even spawn a crazy mid-engine, rear-drive version. Related Video: