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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.

2021 L.A. Auto Show roundup | All the reveals, reviews, pictures

The L.A. Auto Show took place this week for the first time since the onset of the pandemic. It was a show packed with news and reveals, which hasn't really been the case with other shows we've seen this year, and Autoblog was on the floor covering every minute of it. Well, Riswick and Stocksdale were, anyway. The rest of us were sitting at home in our sweatpants, but hey, we'll take credit anyway. Let's get to it. Hyundai Seven Concept This is the Hyundai Seven Concept, and it’s meant to act as a preview for an incoming electric SUV for the Ioniq brand. It leans more toward the concept side of the spectrum than a production car, but expect the final SUV to take design cues from the Seven Concept. Kia Concept EV9 The Hyundai Seven counterpart isn't the only big, bold electric SUV at L.A. this year. Kia has its own take, and it's a modernized version of the traditional boxy utility vehicle called the Concept EV9. It also previews one of the next production electric cars for the brand, which should look right at home next to things like the Telluride. 2023 Kia Sportage HEV As promised, the 2023 Kia Sportage HEV has been revealed. The hybrid powertrain makes the compact SUV the most powerful version available, and it goes on sale next year. The engine is a turbocharged 1.6-liter four-cylinder paired with a 44-kW electric motor. Total output is 226 horsepower. The company didn't give a torque number, but it should basically be the same as the Sorento HEV that has the same basic powertrain: 258 pound-feet. Those numbers are a healthy step up from the 187 horsepower of the base 2.5-liter engine. 2022 Range Rover If you noticed how extra smooth and suave the new Range Rover looked during its recent reveal, Autoblog's James Riswick got a design tour that revealed some of the technological secrets to its success. "Less is more" is harder to achieve than it looks. Fisker Ocean Fisker has brought the new Ocean EV to the L.A. Auto Show, with a public preview at Manhattan Beach and a presence at the show itself. You can watch the public show reveal above, and see more shots from the show floor below. Fisker says the Ocean will start at $37,499 before incentives. That entry model would be the Sport trim with a single, 275-horsepower motor driving the front wheels and 250 miles of estimated range. It also has a 0-60 time of 6.9 seconds. 2023 Toyota bZ4X This is the 2023 Toyota bZ4X, due to hit U.S.

Go fetch yourself: Hyundai Le Fil Rouge shows off self-parking and wireless charging

With the impending onset of autonomous technology, future cars will not only be able to drive people to their destinations without assistance, they'll also be able to perform tasks without humans in them at all. Hyundai and Kia, among other companies, see this as an opportunity to solve small infrastructure problems and quell inconveniences. In particular, the Hyundai group envisions an electric car that can park and charge itself using wireless induction technology. Using the Le Fil Rouge concept car as the subject, Hyundai released a video that demonstrates how this idea could potentially work. Assume that autonomous cars will be interlinked through a network. In this video, a parking garage and the owner of the network also have access and connectivity to that theoretical system. After the driver gets out of the car at her destination, she uses an app on her smartphone to instruct the car to go to the nearest available charging station. The car then drives to a paired parking garage, sans humans, and parks itself in an available spot with a wireless charging pad. Using magnetic induction, the car refills on energy. When the charge is complete, it then moves itself to a different normal parking spot using the so-called Automated Valet Parking System (AVPS) until the owner is ready for the car. When the owner summons the car using the app, the Le Fil Rouge, now shown in the video as ready with 341 miles of range, wakes itself up and drives back to the owner. Although this is a concept for now, Hyundai and Kia believe it could become a reality within the decade. They are considering commercializing such technology with their Level 4 autonomous vehicles, which are expected to launch about 2025. The ultimate goal of launching fully autonomous rides is set for 2030. The idea of self-parking is something several manufacturers are already working on. Tesla has its summon feature, NIssan is exploring the idea with its Pro Pilot program, and Volkswagen plans to unveil its own version in 2020. At this point, both wireless charging and self-parking features seem inevitable. Hyundai Le Fil Rouge Self-Parking View 5 Photos Related Video: