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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.

Genesis' decision to build the Electrified GV70 in America is a sign of things to come

As Steely Dan famously sang, they call Alabama the Crimson Tide. Here in Montgomery, we’re knee-deep in a Green Tide thatÂ’s transforming the business of building and selling cars. The high-style Genesis Electrified GV70 emerging from Hyundai Motor Manufacturing Alabama (HMMA) is the first Genesis built outside South Korea. ItÂ’s only the second made-in-America EV from a foreign-based automaker, after the Volkswagen ID.4 whose Tennessee production kicked off in July.  Get ready for many more. Spurred by the Inflation Reduction Act — whose final interpretations and outcomes remain in Washingtonian flux — automakers foreign and domestic are scrambling to onshore EV-and-battery production to boost American jobs and security, as a condition to securing lucrative tax incentives for manufacturers and consumers. Beginning in 2024, qualifying for EV credits may even require sourcing a hefty percentage of minerals and other battery materials from America or approved trade partners, a list that conspicuously does not include China or Russia. As things stand, that sticking point could make a vast number of 2024 EVs ineligible for purchase credits; though leasing a vehicle may still earn dealers a $7,500 commercial credit that they could pass along to consumers, as most currently do for EV lessees.  The electric version of GenesisÂ’ most-popular SUV is the avatar of Hyundai MotorÂ’s $10 billion American EV investment, which is expected to foster up to 8,000 good-paying jobs. Even thatÂ’s a fraction of what Atlas Public Policy estimates to be $128 billion in industry-wide investment in AmericaÂ’s EV, battery and recycling capacity through 2030 alone. HyundaiÂ’s planned onshore footprint includes a new battery factory northwest of Atlanta, and a $5.5 billion EV factory near Savannah that aims to produce Hyundai, Kia and Genesis EVs beginning in 2025. Beginning that year, Genesis says every new model introduced will be an EV, with no fossil-fuel option. And Genesis plans to phase out gasoline-powered models entirely by 2030, a similar timeline to luxury brands including Volvo and Cadillac. In Alabama, where Hyundai also builds the Elantra, Sonata, Santa Fe and Santa Cruz, an Electrified GV70 is hoisted onto a lift for the final stop on its 16-hour assembly journey.

A 247-hp Hyundai Kona N crossover could be a thing

Hyundai's N Performance sub-brand has its sights on the Kona, the automaker's brand-new compact crossover, for its possible next makeover. If it meets with the approval of Hyundai brass, it'll reportedly do 247 horsepower courtesy of the 2.0-liter turbo engine borrowed from the i30 N. Hyundai's N performance boss Albert Biermann tells Auto Express he has instructed his engineers to develop a test mule version of the Kona to consider for production by the end of the decade. "I've told them to build the car and we'll see what happens with it getting approved. It has to be the i30 N powertrain, really," Biermann told the British website, adding that engineers could give the Kona different suspension and steering specs. The i30 N is Hyundai's not-for-America performance fastback and the N division's first offering. It's based off the i30, an overseas version of the Elantra GT, offered in three body styles — hatchback, wagon and "fastback" sedan — and fitted with a six-speed manual transmission. It has two engine options: the aforementioned 2.0-liter four-cylinder and a version generating 271 horsepower that will power the Veloster N, which will come stateside. By contrast, the Kona has two engine possibilities: a 2.0-liter four-cylinder that makes 147 hp and 132 pound-feet of torque, or a 1.6-liter turbocharged engine that does 175 hp and 195 lb-ft of torque. So the N upgrade would represent a significant boost in power over either of those engines. What other features could a Kona N offer? It could go the N route with a large grille, red-trimmed undercarriage, specialty badging and interior trim and suspension upgrades. Auto Express says upgrades could include a rear diffuser, small roof spoiler and exposed rear tailpipes. Hyundai has sold 5,874 units of the Kona through April since going on sale in February. It also plans an all-electric version for 2019 that will only be offered in the longest-range version in America, which is estimated to go 250 miles on the U.S. test cycle. That version will also be offered in Europe where the estimate is 292 miles of driving range. An entry-level Kona Electric will also be available in Europe with and estimated 186 miles of range. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.