Friction clutch automatic gearbox VS fixed gear

Comparison of the performance of an automatic transmission with a friction clutch and a fixed transmission. An explanation of why it works.
An automatic transmission with a friction clutch is probably the easiest way to make such a thing. However, many people do not believe that it is a real transmission and can really increase torque. Some think that the friction clutch consumes too much energy, others think that it is just a trick and under load, only the engine speed is reduced.
However, with proper torque design, this works and the transmission will actually increase the output torque at a low gear despite the use of a friction clutch.

[@TheAsturarYT]

Many commenters are forgetting exactly what the function of this transmission is: we want to be able to select for higher torque or speed depending on the situation. Sure, this gearbox may waste some energy, and could get beat out in a ramp-climbing competition by a better-tuned non-transmission car, but we really only care about versatility. A good experiment idea would be an obstacle course with many differently angled ramps, flat portions, and obstacles, so the viewer can see the true benefit of automatic high-torque and high-speed switching.

[@wesleythomas6858]

I really like this. Do you think you could put 2 in a row for 3 different possible speeds? Or would it be 4 speeds? Hmm…

[@uelssom]

A really great experiment! Ive seen the previous video where someone made a very good question about this and even you werent very sure. So you made a comparable experiment..Yay for science

[@BrixDownUnder]

AMAZING! I love your explanation, will certainly use automatic from now on in my builds. :) u need way more subs

[@slagskimmermike]

I enjoyed this video quite a bit.

[@PS-tz5cf]

Definitely works. The interesting question is what the torque vs rpm curve looks like compared to a fixed slow or fixed fast drive.

[@timehunter9467]

Great video, I experimented with a similar gearbox and they work well.

[@salva8722]

Excellent, adding maths to explain behaviour of each part, helps a lot to reproduce the model. Also important to know the limits of each element to do not damage or break the motor or gears. Could be only improved if there is a measurement of voltage/current generated to the motor and it’s correlation to speed/ratio in each gear, in the four situations climbing a step, ramp up, ramp down using motor as break to slow velocity, and straight forward.

[@What_The_Fuck_Did_I_Just_Watch]

Excellent job!

[@catgirldoll]

Awesome video! Keep up the good work :D

[@BayushiTawa]

Actually on the low gear range you have 10 / 1 + 5 / 2.33 = 12.15

[@pawelichorad2096]

Its really cool and innovative system. I inspired by you, so i designed this box but in my version you can switch beetwen two speeds in high Speed mode. Regards and waiting for more compact cool buildings✌️✌️✌️

[@dreadswizzard9142]

this is essentially doing what a torque converter or high/low range would do. it is just a very simple 2 speed transmission that uses clutch slippage instead of hydraulic pressure to shift.

[@ikbelmezroua5500]

For me this is art

[@shroomzzz]

NICE, building this right now

[@t_munz]

Thanks for making this video ;-)

[@NaveedUlIslam]

Amazing, brilliant and genius.

[@altaccount4697]

I must say, I was skeptical at first, but you've convinced me. Major props, that's a a very simple design.

[@Sergeichxenon]

Simple. Brilliant. Just works!