Hyundai Sonata expands its lineup with seemingly something for everyone. In compliance with the embargo against South Korean companies under pressure, I do not have some driving impressions just yet, but I can tell technical resolution. And many of them.
The Sonata 2.0T, as the name suggests, is powered by a supercharged 2.0-liter engine. GDI Hyundai avoid the nickname would be lawful, such as inline-4 is a gasoline direct injection. Now admit that there is nothing special, a new turbo engine injects small shift increasingly to the work to manage traditional and consumer-fuel V-6. But Hyundai’s engineers to perfect the concept involved is very different and innovative ways.
varied in one case, the actual exhaust turbo compressor housing, as part of the engine. In addition, the casting is that the two aspects of integrated austenite stainless steel. Technical achievement is enough to use this material, but it is suitable for this application, because the thermal properties effectively you get the heat from the exhaust turbocharger. And of course, the two components are integrated in only reinforces this.
Fact: It is both the kinetic energy of the exhaust gas and the thermal energy of the expanding gases to the turbo compressor production and charging a driving range. Both have integrated design Hyundai.
The Sonata is a twin-scroll turbo-well. That is, to use the ports and knives on two separate tracks on exhaust gas from cylinders 1 and 4 and cylinders 2 and 3. In this way, pulses are not indigenous stroke during surgery to trip over each other. Twin-scroll that idea is not unique to Hyundai (2.0-liter Buick Regal is also used). But the sonata 274 HP compared to the 220 rack, is the other magic.
Hyundai engineers optimized figure she forced induction and direct injection, a volume of about 22 percent starting torque, 220-269 lb.-ft. over a wide speed range, the two roles is good for maybe half that. There are many synergies and involved: the direct injection fuel charge air cooler, not intercooler their magic optimized together with the recirculated air induction. They combine the 2.0T ‘s to 137 / HP liters, producing very good figure in a car between $ 24K-$ 29K. More information about this and my driving impressions once the embargo is lifted.
The Sonata hybrid also has some very nice technology, especially in a parallel hybrid powertrain, lithium-polymer battery and optimum thermal management. Hyundai engineers also stressed the word “fun to drive ‘in the description of their design and develop hybrid.
The 2.4-liter gasoline engine, on the Atkinson cycle, more correctly, like other hybrids, in simulations of the innovative valve control short-compression/long-expansion concept. Clutch subtracted from the engine 41-hp electric motor, only life for 6-speed automatic transmission finally turns to the front of the car wheels.
Note the difference between the layout Hyundai and Toyota Camry Hybrid, Ford Fusion orNissan Altima (all three, brothers and sisters, especially technically more ways than one). The Hyundai’s six-speed automatic is in stark contrast to the other person, the CVT, the alleged benefits of improved highway performance.What’s more, because their work is integrated with the electric motor, it is not obliged automatically based energy converter.
In contrast to the other cars’ nickel-metal hydride battery technology, the Sonata hybrid, lithium-polymer. Newer technology offers improvements in everything from power and energy density of the lifetime of weight on what the characteristics of the condition of the cargo.
The second, SOC, for short, very interesting Hyundai optimization of the hybrid operation. For the sake of sustainability, each battery charged profits from soft non-discharge actions, not the full capacity, a measure of SOC. Without the typical nickel-metal hydride batteries to life-of-the-life of a car window as narrow as 15 percent SOC, for example, less than 50 percent SOC, not more than 65 percent SOC. can say that Hyundai’s engineers say in lithium technology with a wider range, 50-75 SOC without sacrificing battery life.
What more it expands, this innovative thermal management even further: With cold weather, the SOC window Sonata hybrid is as wide as 45 percent, 45-90 SOC can be extended. One advantage of this to offset the power loss inherent in the battery at the same time lower temperatures. Despite the expected features of the SOC-model Hyundai engineers battery life confirm the order of 250,000 miles or more.
The final sample of Hyundai thermal management and efficiency.Compared with other sonatas, the hybrid has a larger air intake, are used in cooling hybrid drive ends like Death Valley in the summer peak. On the other hand is detrimental to aerodynamics gaping mouth. Optimize business processes, Sonata Hybrid is what engineers term on the Active Air Flap. As the name suggests, this thing automatically the air flow. It is wide open to increase at low speed and high coolant temperature, but not so accelerate or coolant temperature drops. Engineers is 10 per cent discount on the CD, the more impressive to hear, if you want the car pull inherent in already low 0.25.