Hyundai Says Ioniq World-Beater in Fuel Efficiency

The automaker claims the car achieves fuel efficiency of 52.7 mpg using a 1.6L Kappa GDi engine developed specifically for hybrid applications and mated to a permanent-magnet electric motor powered by a lithium-ion-polymer battery pack.

Vince Courtenay, Correspondent

January 7, 2016

2 Min Read
Automaker likens Ioniqrsquos sheet metal to killer whalersquos profile
Automaker likens Ioniq’s sheet metal to killer whale’s profile.

Hyundai unveils its new Ioniq hybrid, which it bills as the world’s most fuel-efficient hybrid, at the Namyang R&D center in Korea.

According to company specifications, the Ioniq’s fuel efficiency rating is 52.7 mpg (4.5 L/100 km), achieved with a 1.6L Kappa GDi engine making 104 hp and 109 lb.-ft. (148 Nm) of torque and developed specifically for hybrid applications.

The Kappa engine is mated to a permanent-magnet electric motor delivering 43 hp and 125 lb.-ft. (169 Nm) maximum torque, powered by a lithium-ion-polymer battery pack set low and forward to provide a low center of gravity that enhances cornering stability, Hyundai says.

The hybrid unit shown in Namyang has a body that combines aluminum hood, tailgate, front-wheel lower arm and knuckle and rear-wheel carriers with high-strength steel in all energy-absorbing areas. Using aluminum instead of steel reduces weight of the hood and rear deck 45%, or 27.8 lbs. (12.6 kg).

Hyundai applies a newly developed 6-speed dual-clutch transmission, optimized for the hybrid application with power-transmission efficiency of 95.7%. Suspension is optimized by incorporating a dual lower-arm rear multilink system.

The Ioniq’s exterior styling used as its theme the sleek body of the orca, or killer whale, according to a spokesman. Metal-to-metal body adhesives are used to the maximum.

Plug-in hybrid and all-electric versions using the same body will be introduced later this year, Hyundai says.

The all-new Ioniq hybrid goes on sale in mid-January priced at 22.9 million-27.8 million won ($19,000-$23,000). The pricing includes government tax abatements for hybrid vehicles.



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