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Electric Supercharger Market Ready
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Electric Supercharger Market Ready

Set to make its debut in the Audi SQ7, Valeo's new electric super charge system consists of an electric supercharger which according to the company can reduce fuel consumption by 7% to 20% and it also eliminates most of the lag as the power will be available at a lower rpm according to Green Car Blog on Wednesday.
Valeo says they have a one or two-year lead over other automotive suppliers as far as the supercharger technology is concerned. There are a couple of downsides that need to be taken into consideration as an electric supercharger increases power consumption and is also costlier to produce.
US-based Honeywell says they will launch their own system between 2017 and 2019. They describe it as being an "electrically driven compressor” or an "e-charger" which will be able to provide "very, very good transient response [very low lag] at the low end of the engine speed."
The SQ7 will be the first production car to benefit from this technology and it will be implemented in a V8 diesel engine which is believed to have a 4.0- or 4.2-liter displacement. It will allegedly produce more than 298 kW which will be enough for a 0-100 km/h run in 5.5 seconds. Audi has already confirmed the SQ7 will go on sale sometime next year.
“Systems similar to these hybrid power-trains with electric motors could be used on higher-production, non-performance vehicles tuned more for fuel economy than power and speed,” Andew Wrobel, analyst for HIS Automotive said. BMW has a system on its i8 plug-in hybrid supercar that serves a similar function to Valeo's supercharger. "The BMW i8 has a starter-generator that is able to output 11 hp and 38 foot pounds (51.5 newton meters) during engine startup,” said BMW spokesman Matthew Russell. The starter-generator's output is used to offset perceived lag from the relatively large turbocharger fit to the i8's 1.5-liter three-cylinder gasoline engine, he said.

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