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Mazda's next-gen powerplants to be cleaner than electric motors

Mazda is working on the second and third generation of its SKYACTIV-G engine, and the latter (expected to launch by 2020) will have even lower well-to-wheels CO2 emissions than current electric motors, according to the company.

Mazda's SKYACTIV engines already rank among the cleanest and most fuel-efficient on the market, and can help meet the new emissions standards without the use of a hybrid system.

Mazda SKYACTIV
Photo: Mazda

Mazda's SKYACTIV engines already rank among the cleanest and most fuel-efficient on the market, and can help meet the new emissions standards without the use of a hybrid system.

Their compression ratio will reportedly increase from 14:1 to 18:1 with the second generation. Mazda will also employ homogeneous charge compression ignition (HCCI), a system that works pretty much like a diesel engine, using piston compression rather than a spark plug to ignite the mixture in the chamber.

Meanwhile, the third generation of SKYACTIV will adopt adiabatic combustion to prevent the loss of heat in combustion, dropping well-to-wheels CO2 emissions to around 60g/km on average.

But that's not all: Adding a mild hybrid system based on the current i-Eloop device could further reduce well-to-wheels CO2 emissions to just 50g/km, which is the equivalent of a pure electric model, according to Mazda’s calculations.

Source : autocar.co.uk