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Old 11-20-2022, 05:50 PM   #28 (permalink)
hayden55
Master EcoModder
 
Join Date: Dec 2010
Location: USA
Posts: 1,171

Sport Utility Prius - '10 Toyota Prius II
90 day: 52.98 mpg (US)

300k Sequoia 4WD - '01 Toyota Sequoia Limited 4wd
90 day: 20.19 mpg (US)
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Quote:
Originally Posted by Ecky View Post
Where do the eCVT inefficiencies come from? I sometimes find planetary gears with multiple inputs hard to wrap my head around. It's my understanding that the electric motors need to provide some torque against the engine to get some of the ratios, but there are no frictional losses you wouldn't have in a DCT or manual.
You have a **** load of gears and parts all moving together. Hence the planetary gear name. So each extra moving component compounds the loss.

DCT is pretty simple and less complex so less loss and no torque converter loss because of the clutches.

But those DCTs wear out fast and require oil changes more often to decrease wear. So probably in the long term the prius will be cheaper to own.

Lol I did the 100k change in my eCVT prius again recently and i saw some good wear on mine. Completely burnt and a bit silvery so I bet me towing with it so aggressively wore it a bit but it seems to function like new no problems still. Put more toyota fluid in and a magnetic drain plug from a Hilux and its good to go again.

I bet just adding a part from a Hilux to my car now means the car is indestructible.
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Last edited by hayden55; 11-20-2022 at 05:55 PM..
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Ecky (11-20-2022), freebeard (11-20-2022)