LEGO Automatic Continuously Variable Transmission
431,071
Published 2023-08-23
All Comments (21)
-
One thing I'd like to see would be the same car chassis trying to navigate the same obstacles, but with a basic transmission, just to get a frame of reference for how the continuously variable transmission is actually solving a problem that the basic transmission would simply fail at.
-
I’d say this is more similar to a torque converter and not a cvt transmission. A cvt will basically change the gearing by changing the size of the pulleys that the belt connects to. A torque converter will slip and different amounts to create more or less torque. I hear that the motor was struggling under load. A cvt is nearly 100% efficient so if it was a cvt it would not struggle like that. Instead the pitch of the motor would stay the same and would just lift the load slower
-
Love the idea, I would instead reverse the transmission to make your creation go faster! Torque is a good way to show how it works, but if you can make a lego car that can go from snail to rocket that would be awesome!
-
Really cool project, great video format. Hope to see more!
-
Very good content ❤ Wish you all the best and keep it up 👍🏻
-
The only thing this channel needs is more cool content.
-
This works in a similar manner to an automatic gearbox I made and has the same modular capabilities, very cool!
-
The problem with this, and ALL other differential based "automatic transmissions" is the huge loss of energy from the system having to overcome a resistance to shift torque. In this case its the rubber band slipping. The "resistance" is the torque required for the pulley to slip. Another design I've seen uses a friction pin with an 8 tooth gear. About half the energy of the motor is lost with this method. In my channel you can see a LEGO speedometer that works on a similar principle, but it can be attached to the drivetrain, but not be part of it, thus you can measure the speed without losing half of the motor's energy
-
Hub van Doorne would have loved to see this, my Volvo has a continuously variable transmission. Keep up the good work, this might become a (LEGO) technically very interesting channel!
-
This video is great, thank you!
-
This is a great representation of how to do science correctly, that it is quantitative and the results from data is how we end up in a conclusion. Great job!
-
I can't believe how far we've come in the world of lego CVTs. It was only a few years ago that a small scale prototype was almost impossible, now we've got this.
-
Brilliant! Thanks for sharing.
-
YESSIR!!!! Finally another good channel. I have to subscribe
-
It’d be great to see this car and another car compete at a sled pull or similar heavy object pushing contest
-
Cool Video Keep making them!
-
You just earned a new sub
-
It must be a strange feeling when you push against the vehicle and you feel it respond by pushing harder against you
-
this channel Is alot better than people think
-
A real cvt though uses a cone shaped pulley that moves and a v- belt. You change the distance between the cones to increase or decrease the size/ ratio.