Turbo e-Booster

Monday, May 22nd, 2017

The e-booster eliminates turbo lag:

It’s driven by electricity, so it spins up to 70,000 rpm in just three-tenths of a second, providing a boost until the turbocharger gets up to speed. BorgWarner says the cantaloupe-sized device, combined with a standard turbocharger, improves torque by 85 percent at 1,500 rpm, and by 55 percent at 2,000 rpm.

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BorgWarner first toyed with this idea in the late 1990s, but decided the e-booster needed too much power, says Verrier. But the recent development of 48-volt electrical systems changed the picture. Providing four times the power of a traditional 12-volt system allows the adoption of all kinds of new technologies: active ride control, electric water pumps, heated seats, and so on. The e-booster requires 5 or 6 kilowatts, something a 48-volt system can supply.

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