Toyota corolla tourer 2.0 hybrid 2022 gearbox questions

[samdb19]

Hello everyone,

 

Just got a 2022 toyota corolla hybrid tourer 2.0.

 

When I accelerate the revs don't go trough the rpm range. For example I'll accelerate from 30-50MPH while.the rpm stays at 3000. Is this normal or is there something wrong with the gearbox as in any other car it would go 1500-2000-3000

[trashman1965]

Perfectly normal with a hybrid with eCVT.

[AndrueC]

Not only is it perfectly normal for a CVT based vehicle it's actually proof that it's working as it should. RPMs only go up and down with conventional gearboxes because they have a limited number of ratios available (typically 4, 5 or 6) so the engine often has to be operated at a less than optimal RPM.

CVT based vehicles have a far larger range of ratios to choose from - practically infinite. This gives the ECU freedom to keep the RPMs at the perfect point. This means a CVT based vehicle can accelerate while keeping the RPMs the same or, indeed, accelerate while the RPMs are dropping.

The ICE in hybrid vehicles like Toyotas have even more freedom because they can use electrical power to help the ICE. This is in fact why they are so efficient - the electrical motors coupled through a CVT(*) give the ECU A huge amount of scope in how it operates the ICE.

https://auto.howstuffworks.com/cvt.htm

(*)Toyota like to call it an eCVT because it is somewhat different to most other forms of CVT. Still it shared the same characteristic - an almost infinite range of ratios between top and bottom.

[Red_Corolla]

Like the other guys said, these gearboxes don't do gearchanges. The system can create any drive ratio it likes (within reason) by adjusting the engine and electric motor speeds relative to one another, so you'll find your engine speed is not related to anything except for how much power you're asking for, and it will move up or down in the opposite direction to your right foot.

Sounds complicated, but these gearboxes are actually wonderfully simple mechanically compared to a traditional auto, and it makes them very robust.

[Talking Hoarse]

10 hours ago, samdb19 said:

When I accelerate the revs don't go trough the rpm range. For example I'll accelerate from 30-50MPH while.the rpm stays at 3000. Is this normal or is there something wrong with the gearbox as in any other car it would go 1500-2000-3000

What you describe sounds about right to me.  Mine rarely exceeds 3000rpm, and engine speed has little correlation to road speed due to the CVT transmission.  However are you saying that your car does NOT exceed 3000rpm?  If you floor the throttle the engine revs will rise far above that (for a short time usually in the 2.0).