Electric turbo is an alternative to reduce consumption

Electric turbo is an alternative to reduce consumption
Electric turbo is an alternative to reduce consumption
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The adoption of turbochargers is one of the most studied alternatives to work on reducing the consumption of vehicle engines without harming their performance. Among the most recent innovations is the electrically operated system, which allows for greater performance with low fuel consumption and reduced pollutant emissions. Secondary gain is the shortest response time, and is popularly called “lag”. Audi is the brand that is further ahead in the studies of this technology, which is already in the SQ7, the sporty version of the luxury jeep – for now, with no forecast to be launched in Brazil. The engine 4. The V8 diesel has a small electric compressor, installed just outside the intercooler, which helps it reach 441 horsepower and an impressive 91.8 mkgf of torque, available at 1,000 rpm, equivalent to idle speed. All this with an approved average consumption of 13.9 km per liter. The electric compressor acts precisely in the rpm range where the two conventional turbos of the V8 are not yet at their peak power. Responses are instantaneous because the system can spin up to 70,000 rpm in just 250 milliseconds. Audi installed a second electrical system, 48 volts, so that the device works perfectly. It is in addition to the conventional 12v, thus supplying the power demand of both the electric compressor and other systems that consume a lot of electricity, such as the jeep's active stabilizer bars. The other equipment is powered by 12v voltage generated by a common converter. There are two batteries: a 48v one for the most powerful circuits and a conventional 12v one for the others. Audi plans to bring the technology to gasoline engines as well. The automaker has already advanced a prototype called the TT Clubsport Turbo, shown in 2015 in Wörthersee, Austria. In the coupe, an electric compressor helps the 2.5-liter five-cylinder to deliver 608 horsepower and an excellent 66.2 mkgf of torque, 100% available at 3,000 rpm. According to the brand itself, there was a 22% reduction in fuel consumption, compared to a similar vehicle with a conventional engine.

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