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Old 05-01-2021, 04:33 PM   #31 (permalink)
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Originally Posted by redpoint5 View Post
CVT is somewhat a misnomer on most hybrid electric cars. They call them eCVT. Technically it is a continuously variable transmission, only it accomplishes the ratio change by running an electric motor/generator at varying speeds in a planetary gearset linked to the ICE.

There's no reason why an eCVT should wear out prematurely even at high load, because the vehicle should be programmed to not operate outside of limits that would cause premature wear. This is why I was not worried to pull 1,800 lbs with my Prius (at slower speeds and plenty of stopping space).
I didn't know there was a difference until a few days ago when I watched that video (I probably should have watched before buying). I always thought all of these were just a CVT and thevE part ment attached to an electric motor. They really should totally change the name to just EVT or something else. CVT has a terrible reputation. I always used to reccomend against buying a car with one with the exception on the Prius. Then I started thinking well if Toyota can build a good one maybe I shouldn't write them all off. Now learning that maybe because they werent really building CVTs, but these ECVTs. Now I worry again about my mom's Subaru.

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Old 05-01-2021, 04:54 PM   #32 (permalink)
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I don't know how best to differentiate the products, and really conventional CVTs shouldn't have a bad reputation because they should have been engineered to be at least as reliable as automatics (which already don't have great reputations). CVT and eCVT conveys the meaning though, that the transmission can maintain optimal ratio regardless of speed, and therefore improve fuel economy or performance.

I purposely steered a friend towards a Ford C-max because she drives like the throttle is an on/off switch, and kills automatic transmissions from all of the excessive shifting and forces. Since her manual shifting skills are even worse, I figured we might as well see how well eCVTs hold up. 2 years and no issues yet.
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Old 05-01-2021, 07:02 PM   #33 (permalink)
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Quote:
Originally Posted by redpoint5 View Post
CVT is somewhat a misnomer on most hybrid electric cars. They call them eCVT. Technically it is a continuously variable transmission, only it accomplishes the ratio change by running an electric motor/generator at varying speeds in a planetary gearset linked to the ICE.
IIRC Chrysler actually refers to the setup fitted to the Pacifica as EVT, standing for electrically-variable transmission.
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Old 05-02-2021, 05:07 AM   #34 (permalink)
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So may battery was totally dead and it said 12 hrs 45 mins. I had to leave at about 11 hours and it was at 91% I think.

They say the level two charger drops that to just 2.5 hours. Makes me think the factory box is just pretty amp limited. It says 12 amps 1440 watts that's at 120. So if i tried to use the factory box but with a 240 adaptor would it just run the same 12 amps but then 2880 watts? That means an actual 240 charger running the full 27.5 amps is needed to do the 6600 watts.

OK, I know you guys probably get this I'm just working it out in my head.

anyway even at 1440 watts a 16,000 watt battery should fully charge in 11.1 hours but I'm sure it ramps down a couple times as it approaches 100%

I bet the 2.5 hrs at 6.6 is a bit optimistic as well, probably more like 3 to hit 100%.

Also isn't 100% charging bad? I can't seem to set other limits. Maybe what they call 100% isn't actually 100%.
Mind that charging is not 100% efficient. Resistive losses, conversion to DC and pack voltage, charge monitoring and losses at the cell level reduce the actual efficiency to about 85%.

So while you may draw 1440 Watt from the panel only 1224 Watt goes into the pack. Then it would take just over 13 hours to fully charge an empty battery.

Also, the actual capacity of the battery will be bigger than it shows. Just like '100%' isn't entirely full, '0%' isn't completely drained. But while sitting uncharged it may well have dropped below the '0%' level...

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Last edited by RedDevil; 05-02-2021 at 05:12 AM..
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