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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 CEO touts new EV platform with mention of a pickup

A couple of years ago, one of the prominent concerns about a saturated EV auto-scape was how carmakers would accentuate brand differences among vehicles converging on a frightening sameness. The cars wouldn't make any noise, they would all emphasize aerodynamics, and they would all basically ride on a battery pancake. So far, the fears have been avoided; a Volvo XC40 Recharge won't be confused for a Ford Mustang Mach-E, for instance, and the Ford won't be confused for a Tesla Model Y. Not only that, but automakers are developing platform strategies that heighten the sameness among vehicle architectures because the architecture is where the expenditure and the profit are greatest. Hyundai's the latest to outline its plans for investors. And part of Hyundai's plan could include adding a full-size electric pickup to the range. The mid- to long-term roadmap is called the Hyundai Motor Way, recently revised with higher targets thanks to the swift uptick in EV sales globally. Business Korea wrote Hyundai Motor Group (HMG includes Kia and Genesis) sold 510,000 battery-electric vehicles in 2022. The conglomerate says it now plans to sell two million EVs annually by 2030, up from a previous estimate of 1.87 million.      The platform that will help make this possible is called eM, an evolution of the current Electric Global Modular Platform (e-GMP) platform under HMG's current EVs. The eM architecture's been rumored to launch under a Kia sedan that might be a spiritual successor to the Stinger. So far, eM is planned for 13 models across the HMG portfolio, using the Integrated Modular Architecture (IMA) that can plug-and-play with more than 80 common modules serving different vehicle segments and sizes. HMG president and CEO Jaehoon Chang said, "In the second-generation platform, the scope of vehicle development extends beyond the mid-sized SUVs covered by the current E-GMP system. It encompasses nearly all vehicle classes, ranging from small and large SUVs to pickup trucks, along with the flagship models of the Genesis brand." Sure, Chang could have been merely noting the eM's potential use cases when he mentioned "pickup trucks." That's not how observers are reading the line. At Kia's investor day last year, the brand said it planned two electric pickups. There have already been reports that Kia's working on a body-on-frame pickup for the Australian market, perhaps called Tasman, utilizing gas and electric powertrains.

Hyundai celebrates selling one-millionth Santa Fe

Hyundai celebrated a milestone yesterday when it sold the one-millionth Santa Fe crossover, which was the Korean automaker's first-and-only SUV when it was introduced in 2000. Hyundai credits the Santa Fe as being a key factor to the company's growth and success in the US, but it didn't describe the one-millionth Santa Fe or say where it was sold.
Before Hyundai introduced the crossover, which has been offered in short- and long-wheelbase versions from the start, it was primarily known for making inexpensive economy cars. Today the majority of Santa Fes are produced at its factory in West Point, Georgia, though they were previously made at the Hyundai Motor Manufacturing plant in Montgomery, Alabama. Today the Alabama plant makes Sonata and Elantra sedans. Hyundai says it will produce nearly 500,000 vehicles in the US this year, and will sell a total of 700,000 vehicles here.
Check out the press release below, for more details.