Turbochargers provides lots of horsepower, but they also have turbo lag, so it takes time for the turbo to spool up and provide boost, delaying that power delivery. To combat this, Volvo came up with a very clever solution. The process starts with an air compressor, which fills up a high pressure air tank. If you floor it, asking for full power, the air tank releases that high pressure air directly into the exhaust manifold, where it then rapidly spools up the turbo. This means you don’t have to wait for the exhaust gases to do the work, like you would with a traditional turbo engine. Once your engine starts making good power, the exhaust gases take over to maintain boost, so the air compressor can go back to work filling up the air tank, ready for the next full throttle deployment. So you have a compressor (air compressor), for a compressor (turbo), for a compressor (engine). Neat!
How Volvo Eliminated Turbo Lag – https://youtu.be/Sr5mksh68A4
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I prefer the hybrid electric lag prevention system in the Maserati Grecale, how about a vid on that?
Let's hope that neither of these compressors blow up huh?
You mean there's a compressor on the hyperdrive?!
Freightliner did this way better
Or, you buy an EV and get instant, pin you to your seat, acceleration. 🙂
Why does Volvo spend so much R&D on this while simultaniously limiting their cars top speed in the name of safety? Are there two departments working against each other?!
I wonder what ever happened to that hydraulic powered supercharger they were working on, was supposed to be the best of both worlds…
Love these videos ❤
Is there any reason you wouldn't direct the compressed air into the intake instead of the exhaust?
Pascal would be proud.
Compression to the third power.
The same thing is done in the Koenigsegg Jesko.