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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 pickup truck sounding more likely

Hyundai looks poised to get into the pickup market, according to the latest report from Automotive News. The Korean automaker revealed the Santa Cruz concept at the Detroit Auto Show this past January, previewing a vehicle that combines the best attributes of a pickup truck with those of a small crossover – sort of like a Honda Ridgeline, but smaller. It's an idea whose time has come, says Hyundai's US chief Dave Zuchowski. "We're assuming that it's going to get done," he told AN. "It's just not officially done yet." He expects it to be approved sometime within the next decade, and when it does enter production, Zuchowski said it could emerge as the first diesel-powered Hyundai offered in America. The biggest challenge, however, may not lie in convincing the head office in Seoul to give it the green light. The company's plant in Montgomery, AL, is strained enough producing the Sonata, Elantra and Santa Fe. In order to produce the pickup as well, Hyundai would need to either expand the current plant or build a new one.

Hyundai teases updated Equus before Big Apple debut

The digital ink has yet to dry on some of our Geneva Motor Show coverage, and we're already shifting gears getting ready for the New York Auto Show. To help get us in the New York state of mind, Hyundai has released this shadowy image hinting at the refreshed 2014 Equus that it will be unveiling at the end of the month at NYC's Javits Center.
While we can't make out any major changes in this single image, Hyundai promises at least 30 updates to its flagship sedan including improvements to styling, cabin materials and ride and handling as well as advancements in advanced safety features and "driver technology displays." If we had to guess, the latter sounds like it might be something along the lines of a digital, reconfigurable gauge cluster. The only major difference we can actually see in this image are the new multi-spoke wheels, but we're sure Hyundai will be dropping some more hints before the official introduction on March 27.