Kia to target improved efficiency with a new hybrid transmission and seven-speed dual-clutch gearbox in coming years
4 March 2014

Kia has revealed an all-new supercharged mild hybrid powertrain at the Geneva motor show today. The setup will become a central pillar in the firm’s future model strategy.

The new European-designed hybrid system uses a 48-volt lead-carbon battery powering a small electric motor that will enable cars to be driven at low and constant speeds in pure EV mode. The battery also drives an electric supercharger but will, in time, support a conventional turbocharger.

Kia says the powertrain could operate without the supercharger for a more straightforward layout in smaller models.

The hybrid system uses a belt-driven starter-generator to virtually eliminate noise and vibration on start-up.

Kia says the new technology, which will be offered in petrol and diesel-powered models “in the near future”, could reduce CO2 emissions by 25 per cent while delivering a 15 to 20 per cent increase in power.

Kia has also revealed an all-new seven-speed dual-clutch transmission, engineered to deliver improved performance and fuel economy. The unit will replace the current six-speed DCT from 2015. Engineers have targeted a seven per cent improvement in fuel economy and a five per cent improvement in 0-62mph times.

The new gearbox uses two dry clutches, each fitted with a motor-driven actuator and a pair of input shafts – one each for odd and ratios – allowing the driver to jump immediately to the required gear.

Read more Geneva motor show news.

Join the debate


4 March 2014
Kia / Hyundai Group are working on eco friendly technologies other than hydrogen which in itself is probably the cleanest of the solutions but due to lack of refuelling infrastructure remains a thing of the future. Present essentially belongs to hybrid cars and nothing proves it more emphatically than the trio of hyper cars like the 918 Spyder, LaFerrari and the P1.

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