Electric compressors that will force air into the motor have some advantages namely over turbochargers. Boost in theory will be instant as you do not have to wait as you do with a turbocharger for exhaust gases to spool the wheels.
The downside of course is complexity, capability, and cost. What does something like this eBooster flow? We do not know. BorgWarner conveniently omitted specifications only saying that three major manufacturers will be using the eBooster which is expected to provide efficiency gains of 10%.
That means this is going to primarily be a fuel efficiency technology and not a performance technology. It would be interesting to see a couple electric compressors used to offset lag from a big turbo setup.
An electric compressor does not bring with it the weight and associated batteries of an electric motor. It still feeds an internal combustion engine making it a somewhat natural pairing if the amount of electricity needed is not exorbitant.
Mercedes discussed introducing 'electric turbochargers' a couple years ago and it seems now they are finally reaching a production example.
- Nearly instant boost and torque for a fun-to-drive-experience
- Enables small-engine fuel economy with big-engine boost
- Improves performance for combustion and hybrid vehicles
Auburn Hills, Michigan, April 28, 2017 – BorgWarner, a global leader in clean and efficient technology solutions for combustion, hybrid and electric vehicles, debuts its 48-volt eBooster® electrically driven compressor in Daimler’s latest 3.0-liter gasoline engine. The engine will feature the eBooster technology matched with a BorgWarner-supplied turbocharger to improve fuel efficiency, enhance low-end torque and deliver boost on demand without any perceptible turbo lag.
“Our market-leading eBooster technology enables 6-cylinder engines to deliver the same performance and even more fun-to-drive experience as a much larger conventional V8,” said Frédéric Lissalde, President and General Manager, BorgWarner Turbo Systems. “By enabling engine downsizing, eBooster technology improves fuel efficiency by 5 to 10 percent in combustion and hybrid vehicles.”
BorgWarner’s eBooster electrically driven compressor delivers boost on demand until the turbocharger takes over, improving boost at low engine speeds and nearly eliminating turbo lag. Featuring a brushless DC motor, durable samarium-cobalt magnets and highly efficient power electronics, the compact eBooster technology offers automakers flexible packaging options and can be adapted to a wide range of hybrid or combustion applications.
Mass production of BorgWarner’s eBooster solution is currently ramping up with the innovative system launching first with three global automakers, including Daimler.
Το pdf παρακάτω περιέχει τα τεχνικά χαρακτηριστικά.
[Πηγή: bimmerboost.com]
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