Thread: Turbo Compounding

Why turbo compounding may be the next big thing in powertrains - Autoblog



Pretty cool!

Isnt this similar to the generators used in F1? 2014 Formula One exhaust energy recovery system explained | Electric Vehicle News

Not too familiar with either system.

All in all this looks to provide the largest benefit in an industrial setting.

Cool

Anyway to get more power out of wasted energry is a good thing. Very cool.

Ah yes, this old concept again...

Anyway, this is nice on paper and looks cute on that diagram but mechanically, this is a nightmare. (Especially for the street driven cars we drive to work and run our errands with)

The amount of energy recovered may not be enough to aid rotation in the additional mass added to the system. (aka an even MORE complicated car for you, the end-user) For cars, driven on the street, this is very difficult to deploy correctly. I for one dislike making things more complicated than what they are.

At that point, it may be cheaper and more cost effective to go Full-EV. (and instant torque wins for all you turbo nuts out there)

I think F1 cars use a version of this but they harness electrical energy instead of mechanical energy. I think the article alluded to that towards the end, if I recall correctly.

You think people didn't say the same thing about turbos when they first came out?

For reference f1 does not harvest electrical energy? How is that even possible? They harvest kinetic energy and turn it into electrical energy and it is the way of the future. Sure it's not viable for old mate to convert his b13 thrasher, but it is important for new cars to pursue this tech.

For reference f1 currently uses the following:

Mgu h, which is connected to the turbo. This harvests the energy from the spinning wheels. On deceleration it turns into a mini windmill and stores the energy in a battery pack the on acceleration uses the same motor to spin the turbo up giving boost much faster. Merc when one step further and put their mgu h in between the compressor and turbine.

Mgu k, is connected to the engine. It absorbs the wasted rotating energy from the engine on decel and even helps brake the car in the process. It then helps spin the engine up faster on acceleration

Harvesting and using wasted energy is the way of the future, simple.

You just said the same thing I did when you typed this...... but I like redundancies today.

" stores the energy in a battery pack" That is taking the mechanical energy which is turned into electrical energy to give a boost on a lap.

People said that laser discs were a way of the future and look at those. Same goes for eight tracks for all you "old heads" out there.

edit: I bet Full EV's will be out and about before this is ever put down on a production, consumer, and/or massive level. Or I may be dead and buried by the time this takes off. Who really knows?

Honestly, if this were to hit any market it would be the commercial hauling. For one, commercial hauling is generally a testing ground for products found on modern vehicles, eg on board radars have been ran on commercial tractors for decades, check out Eaton Vorad systems. Second, the EPA teir standards are getting ridiculous and there are only a handful of on road commercial diesel engines that meet regulations, everyone else pays a fine. So I can easily see this being implemented on a on road diesel for those very reasons and on road diesels use a gear case on the front of the motor exactly as seen in the pic.

Compounding turbo isn't much different than a twin charged system. There's a twin charged BRZ out there now. Uses the rotrex style supercharger and an exhaust driven turbo in tandem.