The Mazda Takeri saloon concept previously seen at the Tokyo and Geneva motor shows has been unveiled in front of the US audience at today's New York motor show.
As car companies embark on wildly contrasting electric and hybrid vehicle strategies, could some of the most revolutionary advances come from the trusty combustion engine? Mazda is determined to prove thereâs life left in petrol and diesel.
The Takeri concept exists as a showcase for Mazdaâs âKodo â Soul in Motionâ design language, which is guiding the direction of the firmâs latest production cars. According to Mazda Europeâs design chief, Peter Birtwhistle, âabout 80 per centâ of the Takeri will be carried over onto the next 6 saloon, due next year.
The Takeri, however, is more than just a striking saloon concept. Beneath its skin, it highlights technology Mazda has developed under the SkyActiv umbrella in its quest to improve the fuel economy of its entire range by 30 per cent by 2015. That promise was made in 2007 as part of Mazda bossesâ aim of offering hybrid-like efficiency from internal combustion engines.
Why, though, persevere with petrol and diesel when other manufacturers are moving towards electrification?
âThere are two main reasons,â explains Uwe Kracht, vehicle team manager at Mazda Motor Europe. âFirstly, we still believe combustion engines offer great potential. For example, up to 30 per cent of the energy from these engines is still getting lost. The second reason is that we are convinced that in 2020 more than 80 per cent of cars will still use combustion engines.â
Mazda calculates that its goals for improving fuel economy and CO2 emissions by 2015 would only otherwise be possible if either half of its new passenger cars were hybrids or almost a quarter of them were full electric vehicles. Given the current take-up of such vehicles, itâs an unlikely situation.
SkyActive is the first step
The companyâs first step towards that 2015 economy target was SkyActiv, a range of cleaner powertrains and lighter chassis and bodyshells that has already reached production in the shape of the CX-5 compact SUV, due in British showrooms this spring.
Of course, Mazda isnât ruling out a fully electric car for the future, and it has already forged a licensing deal with Toyota to develop a hybrid that is expected next year. Kracht says: âFor further development, we are following a âbuilding blockâ strategy, with SkyActiv at its base. We will develop the electrical applications in steps until perhaps some time in the future we will finally end up with an electric car.â
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Re: The future of internal combustion?
I think there will be a market for hydrogen-powered range-extender hybrids to supplement if not replace petrol or diesel, but not anytime soon due to the massive investment required for filling station infrastructure. Right now it's not viable, but as the price of oil continues to increase, the numbers for hydrogen will eventually become competitive.
It's a pity that we don't yet have a vehicle which combines all the best-in-class features together to provide the bets possible picture of what can be done with today's technology. A car which combines the Ampera's range-extender tech with the best bits of Mazda's SkyActiv program, low weight due to aluminium and carbon-fibre construction expertise from the likes of Audi, a MultiAir petrol engine from FPT instead of the Ampera's GM engine, solar cells in the roof like the Fisker Karma, styling by Pininfarina and all backed up by Toyota's dealer network...
Re: The future of internal combustion?
Re: The future of internal combustion?
Forum ate my reply.
1) 25% best case for a modern diesel.
2) Power plant to wheel efficiency is independent of generation type. Even with our current generation mix, EVs can deliver well under 100 g/km.
3) The largest, most efficient marine diesel engines achieve a little over 50% efficiency. Recovering energy from waste heat is a good idea (see turbo-compounding, as used on WWII aero engines).
4) Transmission and distribution losses are not 'massive'. 6-7%. The article I referenced estimates 55% hydrogen production and distribution efficiency (i.e. 45% losses). Hydrogen is a poor way of moving electrical energy from one place to another.
5) The numbers don't add up. Even best-case theoretical efficiencies for electrolysis and fuel cell operation compare badly to chemical battery cycle efficiencies.
6) No idea. The overall efficiency of any ICE-powered vehicle will be dominated by the low thermal efficiency of the combustion engine, whatever the fuel.