Electric Assist Turbo anyone?

[Me78569]

Anyone else see this ?

 

 

 

 

What lag?   @dieselautopower  thoughts ?

 

From what I have seen Garrett has battery that is charged then discharged rapidly when the turbo needs help spooling up.  

 

 

The coolest part is gathering energy from the turbo when not on boost.  It will use the turbine as a generator to pump power back into the charging system.

 

https://www.garrettmotion.com/electric-hybrid/garrett-e-turbo/

 

 

Edited December 13, 2019 by Me78569

[kzimmer]

I'm skeptical, but I like the concept. There's some major design challenges there. 

[dieselautopower]

Waste of money.  

 

Get this instead its only $30 on ebay!

Seriously the electronic spool will help emissions and performance... essentially supercharging vehicle until exhaust gasses bring the turbo up to speed.

 

IIRC garret has it in production, but has not disclosed which vehicle manufacturer will be the recipient.

[backcountrymountains]

Ha, I saw this article, too. Seems like a great idea, I don't know why it's taken so long to come to market. F1 engines have an MGU-H unit that's been doing this since 2014. 

 

F1 MGU-H

Edited December 18, 2019 by backcountrymountains
Add a link

[Dieselfuture]

I know it all comes from rednecks, I remember friend of mine using a vacuum cleaner in his Chevy cavalier with 3.4l to get it go faster, it seemed to work at low rpm, all he needed was to add a turbo 

[CUMMINSDIESELPWR]

they have been doing this on F1 racing  for a while and it works!

[Mopar1973Man]

I'm going to say its a flop.

 

After my trip to Arizona and seeing long grades 10 to 20 miles long where the turbo is spooled up 15 to 17 PSI constantly. That little battery won't last long. Especially when your climbing then level off, then climb again.  I would say in racing its a different thing where the driver is constantly on the throttle and back out again. Where most of us just set the cruise and stay even rate and speed. Where will that charge come being we don't power then let up in the corners like racing. Can't charge will being spooled. Like my trip home I bucked head wind the entire way and stay in the spool constantly. 

 

Standard turbo now are expensive, then you look at the pure cost of a VGT turbo on the 4th gens and up, even more expensive. Then this new technology with a controller, battery, electric motor, etc. Most of use won't be able to afford it. (Check the links).

Edited June 17, 2020 by Mopar1973Man

[Me78569]

the electric turbo assist only pre spools in special situtations, when towing exhaust gasses will drive the turbo like normal.   

[CUMMINSDIESELPWR]

also to the motor in the housing charges the battery and/or drives a motor on the crank adding HP

[That Guy]

My first question.... what are they doing about the efficiency of losing ~20% of power each way? It is bound to be a brushless 3ph motor, owing to the 3 wires, which means thats an inverter box. Looks a lot like my prius drivetrain bolted to a turbo. It's great for traffic (I have gotten 75+mpg in city) but is not great for highway(45-55mpg). It is more efficient to just not have the hybrid system, but the ability to store otherwise wasted heat energy makes up for it in intermittent power situations. On the highway, it's just extra weight. 

 

EMD built their later 2 strokes with a turbo that was driven off of the accessory drive of the engine. It has a clutch that disengages after notch 5(iirc) and allows it to spin free. Acts like a supercharger for starting and through lower power. Allowed them to get rid of the supercharger/blower all together. It was a very reliable system that didn't need servicing any more frequently than the rest of the engine. It was more economical and had higher total power.... win win. Seems like that would be the way I would go as an engineer