The Hyundai Sonata Hybrid, expected to hit dealerships later on this particular yr, is certainly the South Korean company's initial hybrid inside the US market. Apparently, Hyundai took its time, scrutinized the hybrid competitors, and tried to outdo it in every single respect. At a cost beneath $26,000, Hyundai has generated a mainstream mid-size hybrid sedan that offers genuine competition intended for class-leading fuel economy. Hyundai expects the Sonata Hybrid to attain 37 miles per gallon within the metropolis as well as 39 mpg on the highway.
Due to the fact the motor is definitely synced straight to the transmission, a clutch latches to and also unlatches in the gasoline-fed 2.4-liter inline-four with 166 horsepower along with 154 pound-feet of torque on tap (also revised slightly from earlier inside the year). As you'd expect from a hybrid, the Atkinson-cycle variant from Hyundai's Theta II family has been optimized for the purpose of optimum effectiveness. Last mixed efficiency figures are 206 horsepower and even 193 pound-feet of torque.
Hyundai engineers say that the lithium-polymer batteries can tolerate tens of thousands of cost cycles, without possessing to make use of a liquid-cooling system. Based on W. C Yang, president on the Hyundai R&D Center, the Sonata Hybrid batteries should supply "300,000 miles with less than 10 percent reduction in performance . that's purely from an engineering point of view, not a warranty point of view." Hyundai currently gives a 100,000 mile/10 12 months powertrain warranty in the U.S. market.
Also enhancing highway mileage is certainly an Atkinson-cycle version of the two.four Theta II engine, based on the standard two.4-liter engine within the Sonata, but recalibrated to run on the Atkinson cycle, a common way of improving the effectiveness of engines used in hybrids. A fair amount of low-end torque is sacrificed inside the Atkinson conversion, but that is certainly made up by the addition of torque from your electric motor. Mixed, the engine and electric motor generate 209 hp and even 195 lb-ft of torque, compared to 198 hp/184 lb-ft from your 2.4-liter version standard inside the Sonata.
The multi-disc clutch pack sits within the motor along with is actually used to decouple the 2.4-liter engine meant for idle/stop and even electric-drive modes. By allowing higher EV-only speeds, the clutch plays a big part in the Sonata's highway fuel effectiveness. With a 17.2-gallon fuel tank, the Sonata Hybrid has a theoretical range of 766 miles.
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