Be a game changer again
In terms of driving, environmental concerns are one of the most important issues to be always considered. Recently, it is true that many auto companies have tried to develop more eco-friendly vehicles and governments have also tightened regulations regarding to driving. In case of drivers, it is a lot connected with maintenance cost. In fact, the reason why RX-8 which was the last car equipped rotary engine was disappeared is also related to environmental problem (Representatively, It was difficult to satisfy regulations in many country).
In this context, ‘fuel efficiency’ and ‘CO2 emission’ may be the most important issues. Mazda have ever changed the automobile market through ‘rotary engine’ regarding as an Icon of Mazda but they do not product it anymore. However they had a strong weapon to be a game changer again.
SkyActiv, as a technology which increases efficiency, encompasses the engine, chassis, transmission and body. Mazda claim that the fuel efficiency can be improved by maximum 30%.
The engine applied SkyActiv technology is called ‘Sky Active G or D (G=Gasoline, D=Diesel)’. Compared with the second generation Mazda 3 which was applied MZR 2.2 engine, fuel efficiency of the third generation Mazda3 equipped SkyActiv D 2.2 is increased by about 20%. CO2 emission is of course improved, which can meet tier 2 bin 5 emissions standards in the US. It is because of its compression ratio of 14.0:1 and Mazda says that it is the first engine which can achieve this high compression (For reference, the fuel efficiency of Sky Active G is about 25km/L).
As called SkyActiv Drive(in the case of Automatic. Manual transmission is called SkyActiv MT), the lock up clutch in the transmission is improved to 88% from 64% and Mazda says that it can also enhance fuel efficiency by 7%.
Body and chassis
It is called ‘SkyActiv Body’ and ‘Sky Activ Chassis’ each. SkyActiv Body is lighter by 8% but more rigid by 30%. Mazda could achieve it by minimising the curvatures and their ultimate goal is that lightening the weight of new generations by 100kg less than previous one.
In the case of Chassis, it is also lighter by 14%. They claim that it is enhanced driving quality at all range of speed by the improvement of agility at a mid-speed and stability at a high-speed.
Likewise, SkyActive technology focuses on the improvement of efficiency. However, there is still the loss of energy so Mazda says that they are considering for enhancing a heat efficiency, to reduce inner resistance and to lighten the weight of engine. By this SkyActiv technology, in addition, Mazda expects that the sale of new Mazda 3 to increase by approximately 9,000 although the sales of last Mazda 3 was decreased about from 11,000 in 2010 to 6,000 in 2012.
The vehicles applied Skyactiv technology (Source: http://www.netcarshow.com/mazda/)
The Motor Report (2012). Mazda RX-7 Returning in 2017: Yamamoto <http://www.themotorreport.com.au/55336/mazda-rx-7-returning-in-2017-yamamoto > [31 October 2012]
Mazda (n.d.). SKYACTIV TECHNOLOGY VISION [online] available from < http://www.mazda.com/mazdaspirit/skyactiv/vis.html > [01 Nov 2013]
Mazda (2010). Mazda Reveals Next-Generation ‘SKYACTIV’ Technologies [online] available from < http://www.mazda.com/publicity/release/2010/201010/101020a.html > [02 Nov 2013]
Autoblog (2010). Mazda groups suite of new technologies under the “SkyActiv” umbrella [online] available from < http://www.autoblog.com/2010/10/21/mazda-groups-suite-of-new-technologies-under-the-skyactiv-umbr/ > [01 Nov 2013]
Telegraph (2013). Mazda3 Skyactiv review [online] available from < http://www.telegraph.co.uk/motoring/car-manufacturers/mazda/10340471/Mazda3-Skyactiv-review.html > [02 Nov 2013]
Mazda (n.d.). SKYACTIV Technologies [online] available from < http://www.mazda.co.uk/aboutmazda/ > [02 Nov 2013]
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