Kia's Mild Hybrid Integrated Starter Generator (MHISG) operates in both "motor" and "generator" modes. There'll be a mode for harnessing energy released during braking to recharge the 48v battery and a "moving stop and start" function that can switch off the engine as you're slowing down, before the vehicle has come to a complete halt.
The battery recovers energy from the diesel engine's crankshaft when the vehicle is decelerating or driving downhill.
New Kia Ceed will be second model to gain hybrid tech
The Korean automaker confirmed a new diesel mild-hybrid powertrain, which will debut in the Sportage later this year, followed by the third-gen Ceed in 2019.
The system is controlled by an advanced Electronic Control Unit (ECU), which calculates the most efficient use of the available energy, and adjusts it accordingly, taking into account the amount of charge remaining in the car's batteries.
According to Kia, the system, which is paired with Kia's Selective Catalytic Reduction (SCR), can reduce Carbon dioxide emissions by up to four per cent on the new Worldwide harmonized Light vehicles Test Procedure (WLTP).
This battery is also able to connect to the vehicle's on-board power supply, meaning the regular 12V battery and the starter motor can be smaller. The MHSG can then seamlessly re-ignite the engine - in any situation - if the driver presses the throttle pedal. Its introduction is part of Kia's 2025 Electrification Strategy, under which the company intends to have launched 16 "advanced powertrain" vehicles by 2025, five each of which will be hybrids, plug-in hybrids and pure battery-electric vehicles. The technology has been developed as a means of improving efficiency and performance.
The mild hybrid system will eventually expanded for use beyond just diesel engines, which means that we'll likely see it bolted onto a gas engine in the U.S.in the not too distant future.
The EcoDynamics+ diesel mild-hybrid powertrain will help Kia offer cleaner and more frugal diesel engines.