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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.

Weekly Recap: Kia leads Korea's quality surge

The rapid rise of Korea's auto brands in the US market has been apparent on the sales charts for several years, and now it's showing up in an area that's just as crucial: quality. Kia and Hyundai earned the highest rankings among mainstream brands in the J. D. Power Initial Quality Study released on Wednesday. The study tracks problems owners report during the first 90 days they own their car. Kia reported 86 problems per 100 vehicles, or fewer than one problem per car sold, to take second in the rankings behind luxury sportscar-maker Porsche (80). Kia's score improved by nearly 20 percent compared with the 2014 study. "The big industry story is Kia," Renee Stephens, vice president of U.S. automotive quality at J.D. Power, said in a video statement, noting Kia's infotainment systems were the key reason for its improved performance. Hyundai was fourth for the second straight year, though its score actually worsened by one, to 95. Even with Hyundai's slight dip, Korean quality increased 11 percent, according to the study, which far outpaced American and European companies' three-percent increases. Japanese brands improved one percent. Hyundai Motor Co. (parent company of the Hyundai and Kia brands) captured four individual vehicle awards, which tied for the most with General Motors, Nissan, and Volkswagen. "The Korean brands have really taken off," Stephens said. "There's movement in the industry, and the patterns are shifting." Another luxury brand, Jaguar (93 problems), slotted in between Hyundai and Kia in third place. Infiniti was fifth, followed by BMW. Chevrolet was the highest domestic brand, taking seventh place, followed by Lincoln, Lexus, and Toyota, which were all well above the industry average of 112 problems per 100 vehicles. OTHER NEWS & NOTES Kirk Kerkorian dead at 98 Kirk Kerkorian, a billionaire activist investor who wielded enormous influence on the Detroit Three car companies in the 1990s and 2000s, died Monday. He was 98 years old. Kerkorian made headlines in 1995 for trying to take over Chrysler – with the help of former chairman Lee Iacocca – before being fended off by Chrysler management. His takeover attempt ultimately pushed Chrysler to be sold to German giant Daimler. He tried to buy Chrysler again in 2007 when Daimler put Chrysler on the market, but Kerkorian fell short and the automaker was sold to private equity firm Cerberus.

Recharge Wrap-up: Uber app for Apple Watch, Hyundai brings ix35 Fuel Cell to Australia

Uber has updated its app to support the upcoming Apple Watch. Users will be able to hail a car with a single tap directly from the wearable device. The Uber app for the Apple Watch will also let the user check on the driver's progress. The Apple Watch launches on April 24. Read more at iPhone Hacks. The Place at Terracina in Austin, Texas will offer Car2go services onsite. Through a partnership with real estate group MC Companies, the carsharing service will have six dedicated parking spots at the community's entrance for residents and other nearby users. "We know our residents will benefit from the Car2Go service and hope it helps them share the good life with others," says MC Companies Vice President of Marketing Eric Brown. Read more in the press release from MC Companies below. Hyundai has debuted the ix35 (Tucson) Fuel Cell in Australia. Along with giving Australia its first hydrogen vehicle, Hyundai is also unveiling a solar hydrogen refueler. The refueling station, located at Hyundai's Sydney headquarters, uses solar power to run the electrolyzer to make hydrogen from water onsite. Hyundai's Bill Thomas told 3AW that a future where most vehicles on the road are powered by hydrogen is "a way off. We're working on our next-generation fuel cell vehicle which we're hoping to bring out in 2018, but even at that stage, we're only talking in small numbers." Listen at 3AW, and read more at RenewEconomy. MC Companies Partners with Car2Go Brings Innovative Service to The Place at Terracina with Car2Go SCOTTSDALE, Ariz., March 31, 2015 /PRNewswire/ -- Cars are a costly investment. We can't all buy our own and we understand that life can get in the way of being financially stable enough to purchase one. Living expenses, bills and unexpected costs pop up all the time. Car 2 Go is making it easy to have access to a car no matter what life throws at you. MC Companies is teaming up with Car2Go to bring this convenient service to The Place at Terracina. Car2Go now has six spaces for cars to be dropped off and picked up at the entrance of the community and this is the furthest North location that Car2Go has in the city. This provides residents, and people in the area, with shared vehicles to help them navigate through their days with ease. "We are excited to have Car2Go on our property and can't wait to share it with our residents," says community manager Rachel Sypho.