In a bid to reduce emissions, Kia is delivering a new 48V mild hybrid diesel powerplant to its United Kingdom cars this year (Kia say in the second half of 2018) initially in the Kia Sportage but likely to be offered more extensively across the Kia range.
The company claims thats integrating the EcoDynamics+ mild-hybrid system into the existing architecture "is relatively straightforward".
Kia's mild-hybrid technology features a compact 0.46 kWh 48-volt lithium-ion battery and a new Mild-Hybrid Starter-Generator (MHSG). 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.
Connected by a belt to the diesel engine's crankshaft, Kia's Mild Hybrid Integrated Starter Generator (MHISG) operates in both "motor" and "generator" modes. The options are 1.7-litre and 2.0-litre units; the latter is more likely to be offered with the boost, in order to create a higher-ranking powertrain. The starter generator is mounted to the engine via a belt, and provides quick starts-so the engine can remain off when the vehicle is stopped-thereby reducing emissions.
A mild-hybrid diesel variant of the Kia Sportage SUV will go on sale before the end of 2018. It can also be adapted for FWD, RWD and AWD drivetrain layouts. It can even deliver a "Moving Stop-Start" if there's enough charge in the battery.
New Kia Ceed will be second model to gain hybrid tech. If the battery has sufficient charge, the combustion engine turns off automatically during deceleration and braking. After the diesel mild hybrid's introduction, Kia will use the technology in a gasoline-powered vehicle. The MHSG can then quickly restart the engine the moment the driver presses the accelerator pedal.
The 48V battery's DC/DC converter enables the new battery to connect to the vehicle's on-board power supply, leading to a significant reduction in the size of the 12V battery required to power the car's ancillary electronics. Charge from the 48V battery helps to start the engine in most conditions.
Kia says the system can be adapted for front, rear and four-wheel drive vehicles, and will also be adapted for use with petrol engines.
Kia is introducing EcoDynamics+ 48V mild-hybrid diesel engines to their United Kingdom range later this year in a bid to reduce emissions.