2014 Hyundai Sonata Gls on 2040-cars

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2013 Hyundai Sonata Hybrid gets bigger, better battery pack, lower MSRP

Just yesterday, we told you how Hyundai's 2013 Sonata Hybrid was late out of the gate (along with its mechanical twin, the Kia Optima Hybrid), with growing speculation suggesting that the company was revisiting its gas-electric sedan with an eye toward improving its efficiency.
Well, today Hyundai has released official details, and that's exactly what's happened. Sporting a larger starter generator, a higher output electric motor and a more potent 47 kW lithium polymer battery, the 2013 Sonata hybrid is more efficient than before. The revised hardware helps the sedan jump two miles per gallon combined over its 2012 predecessor. That pushes the 2013 Sonata Hybrid to 36 mpg city, 40 mpg highway and 38 mpg combined. Engineers also tweaked the machine's software, with revised driving pattern detection and engine on/off logic.

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.

Recharge Wrap-up: Hyundai visually explains fuel cells, BYD T5 electric truck

Are you still unclear about how exactly a hydrogen fuel cell works to power a car? Hyundai is offering a great visual on how its fuel cells operate in cars like the Tucson fuel Cell. Basically, the anode splits the hydrogen molecule into a positive and negative ion. The negative ions are used for electricity, while the positive ions are pushed through a membrane to the cathode, where both ions are combined with oxygen to create the byproduct of water. There's a little more to it than that to make it work in a vehicle, so see for yourself in the infographic below. BYD is launching its T5 electric light truck in China. The truck has a maximum speed of 31 miles per hour, making it mostly suitable for in-city and campus duty. It has a range of almost 250 miles, though, and with its size, the T5 could make a pretty adept delivery truck. The battery is situated under the load bay between the axles, keeping the center of gravity low. Price could be an issue, but government subsidies might help convince some companies to make the switch to BYD's electric truck. See more over at Car News China. The Mahindra Reva e2o electric vehicle will offer a fast charging feature, called Quick2Charge. Normally, the e2o takes five hours to fully charge, but that time gets cut to just one hour with the new option. Choosing the Quick2Charge option adds 45,000 rupees (about $735) to the price of the e2o. The new e2o is supposed to get electric power steering, and, later, a four-door variant. Mahindra Reva is also making an export-only version with Quick2Charge, longer range, electric steering, airbags, and ABS. Read more over at Indian Cars Bikes. The Quebec-Vermont Electric Charging Corridor is set to expand with 14 new charging stations. Melanie Dufresne of the area's tourism board announced that the 240-volt chargers would be installed in Le Haut-Richelieu Regional County Municipality. Drivers will use a special access card to charge at the stations in the region for $2.50. The stations will be installed by the end of the year. To see all the locations and learn more about the announcement, head over to Hybrid Cars.