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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 promoting younger execs in bid to 'smoothen an eventual leadership succession'

Experience versus the next generation. It's the decision any organization has to make when it comes to its succession of leadership. But even companies that value wisdom over vitality will eventually have to hand the reins to a new generation of leaders. And that seems to be what the Hyundai Motor Group is preparing for. The Korean automaker has promoted three executives in their early 50s to the rank of Executive Vice President. Chief marketing officer Cho Won-hong (50), PR chief Kong Young-woon (50) and Kim Gyun (52), head of strategic planning at Kia, are all being promoted to the role, putting them in senior leadership positions at one of the world's largest automakers. Reuters frames the promotions as earmarked to "smoothen an eventual leadership succession" at Hyundai. The family-owned company is currently chaired by Chung Mong-koo (76), who has given little indication that he's preparing to step down in the near future. But when he does, he's widely expected to relinquish control to his only son, current vice-chairman and former Kia president Chung Eui-sun (44, pictured), who is said to have chosen the aforementioned US-educated Cho for the promotion. News Source: ReutersImage Credit: SAMUEL KUBANI/AFP/Getty Hirings/Firings/Layoffs Hyundai Kia

A closer look at the 2015 Kia Soul EV

Kia is set to join the fully electric vehicle space this year, with the fresh-faced 2015 Soul EV. The all-electric Soul made its debut at the Chicago Auto Show earlier this month, and Autoblog west coast editor Michael Harley had a chance to speak with Orth Hedrick, Kia's vice president of product planning, about the new electrified hatchback. In its standard form, the Kia Soul offers tons a wealth of functionality with its upright packaging, and with a new 81-kilowatt electric motor underhood, the electric vehicle should be good for between 80 and 100 miles of driving range. Charging times vary from as long as 24 to five hours, depending on your setup, and Kia is partnering with Bosch, Leviton and AeroVironment to provide different charging solutions, depending on a customer's specific needs. Take another, closer look at the 2015 Kia Soul EV in the video, below.