Valeo Develops Lag-Free Turbocharger


Published on August 4th, 2014 | by Daniel Sherman Fernandez


Valeo Develops Lag-Free Turbocharger


French supplier Valeo has developed an electric turbocharger that it says eliminates “turbo lag.” The new turbocharger is powered by an electric motor instead of exhaust gases. When not needed, the turbo’s impeller, which pumps air and fuel into the cylinders, still spins at 10,000 rpm, so there is minimal hesitation or lag in engine response when the driver presses the accelerator pedal. But there are downsides: cost and power consumption. The unit requires 48-volt power, which means additional electronics under the hood. It also is a heavy user of electricity. Still, automakers are intrigued. Audi has been testing the electric turbocharger and is expected to be first to market the device. It recently tested the turbocharger on Pikes Peak in Colorado.

Goodyear 650x85(DSF)

Audi R&D chief Ulrich Hackenberg hints at equipping production cars with both electric turbochargers and standard turbochargers powered by exhaust gases. Mercedes-Benz R&D chief Thomas Weber says the technology is “relevant” and a “valid option” when mated to 48-volt or higher voltage systems. “It is a real alternative to two-stage turbocharging,” Two-stage turbos use two fans one for low speeds, another for high speeds. BMW engine development manager Nikolai Ardey says the company is studying the technology but is looking at alternatives as well.


About the Author is a service to the public and other website owners. is not responsible for, and expressly disclaims all liability for, damages of any kind arising out of use, reference to, or reliance on any information contained within the site While the information contained within the site is periodically updated, no guarantee is given that the information provided in this website is correct, complete, and up-to-date. is not responsible for the accuracy or content of information contained inside.

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to Top ↑