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Green Technologies Petrol and diesel engines are highly efficient, but they come at a price. They emit CO2 and other gases and particles that pollute the atmosphere and might influence longer–term climate patterns. Toyota is therefore committed to developing technologies that reduce emissions to much lower levels. Since petrol and diesel engines will probably continue to form the major source of automotive power for a decade, a major effort is being made to reduce the environmental impact of these technologies. For example, Toyota has re–examined the whole structure of the internal combustion engine to identify specific ways in which petrol and diesel engines can burn less fuel more efficiently, and so emit less CO2 and other unwanted gases. This has led to the development of integrated intelligent technologies that use advanced solutions inside engines to improve the management of fuel and driving operations. One of these is Variable Valve Timing–intelligent (VVT–i), which uses less fuel than comparable petrol engines and emits less carbon dioxide, nitrogen oxides and hydrocarbons. Another is Toyota's Common Rail Diesel technology (known as D–4D), which injects a precise amount of fuel directly into the combustion chamber to deliver more efficient combustion and better fuel economy. These both help reduce CO2 levels in exhaust emissions. Toyota has also made significant advances in developing engines that are powered by alternative energy sources. One of the most promising approaches is to combine two different power sources in a single system to exploit the performance potential of both. This is known as hybrid technology, and forms one of the most promising development paths on Toyota's eco–car roadmap.
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Toyota Optimal Drive Benzin i dizel gorivo prodaju se po određenoj cijeni, nije dovoljno samo otići na benzinsku postaju. Motori koji koriste ta goriva emitiraju stakleničke plinove koji doprinose klimatskim promjenama, kao i druge štetne čestice koje zagađuju atmosferu. Budući da će benzin i dizel gorivo nastaviti pogoniti vozila u bliskoj budućnosti, radimo na razvoju tehnologija koje će osigurati konstantno smanjenje tih emisija. Preispitali smo cijelu strukturu motora s unutarnjim sagorijevanjem kako bismo pronašli načine na koje bi benzinski i dizelski motori sagorijevali manje goriva na učinkovitiji način, a da to ne utječe na performanse. To je dovelo do proširenja ponude tehnologija za zaštitu okoliša, koje mi u Toyoti zovemo Toyota Optimal Drive. Toyota Optimal Drive: minimalni štetni utjecaj na okoliš i maksimalne vozne performanse Kupci više ne moraju birati između ‘zelenih potvrda’ i voznih performansi kad kupuju klasične tehnologije poput onih benzinskih i dizelskih. Do kraja 2009. godine, do 92% vozila iz linija Toyota marke opremljeno je tehnologijom Toyota Optimal Drive u osnovnoj opremi: paket inovativnihtehnologija za zaštitu okolišakoji osigurava smanjenje potrošnje goriva, niže emisije CO2 i užitak vožnje bez premca.