Hi Scotty, is this statement (especially the last sentence) accurate?
"Toyota hybrid cars (and only them) do not have a gearbox, they just don't have it physically. They only have gears that are always engaged, without clutches. The probability of failure of such a system is equal to that of a differential, practically zero."
Thank you so much, and have a nice day.
Well to my knowledge the majority of Toyota hybrids used CVT transmissions. And they didn't have gears on them they use belts and pulleys.
Thanks Scotty! Apparently Toyota's hybrids use eCVT (aka HSD), which is actually a profoundly different transmission compared to CVT. Basically no belts and pulleys, only gears/planetary gear sets. Now their gasoline models seem to not have that, they indeed have a regular CVT (belts and pulleys).
A big big advantage of hybrids this one.
Toyota Hybrids, TMK, use a planetary gear set as the “transmission”. It’s not like a traditional CVT with belts and pulleys. It is it’s own thing. And it is very unique to Toyota.
With that said, Toyota also make a traditional CVT. But they use it for mainly ICE nor hybrid.
Thank you, Kaizen. That's what I thought. So it hopefully does mean that these Toyota's automatic transmissions are much more reliable than most other types. Since as we all know ATs are not that reliable and cost a lot to repair or replace.
If so, it's another good reason to get a Toyota hybrid car. (In my case anyway, because with an hybrid I could drive in the center of my city where ICE vehicles aren't allowed. I need that for my job.)
Here you go. This is about as in-depth as you will find on the internet
https://www.youtube.com/watch?v=dLNDGUISTYM
Thank you.
Although the last video, "The Hybrid-Encabulator", is a joke. It's not a real thing. It's not about eCVTs.
which is why I titled it
Oh, right, I didn't notice that. Thanks.
I have seen lots of differential failures.
Like when you change the diff oil and about 6 teeth off the ring gear come out with it.
what vehicles were those?
1984 Toyota pickup where the guy thought he could rent a trailer with a cubic yard of redimix concrete. A '78 Chevy 4x4 that some guy put a GMC 671 blower onto that exploded the rear diff when he tried to light it up. Several others that have come apart in various ways. It's not very common but it does happen. Neither of the guys I noted above were me.
Hi Doc. I meant if the Toyota's eCVTs or Direct Shift CVTs are very robust and reliable, in comparison with other types of Automatic Transmissions or regular CVTs. I didn't mean to ask about the differentials per se.
But thank you.
I figured it. Yes, Toyota's eCVT/HSD are much more reliable than CVTs. They don't have pulleys and belts, they have just gears. I think it's the only reliable automatic transmission on the market .
You are probably correct. I thought we were talking differentials. My bad.
It's fine. Good luck!
Thank you.