This guy apparently doesn’t understand the first and second laws of thermodynamics. However, in his defense, this is sorta how regenerative braking works, but with less complexity.
Most people don’t. There is just no free lunch to ever be had.
That explains why we exist right now (for free)
A very, very unfunny joke.
Regenerative braking was my first thought.
It’s impressive that he figured out how to create a post though, considering room temp iq (during the winter in a commie block apartment, in celsius)
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Wow, excessive emojis and em-dashes… Not ai at all
My LinkedIn feed is like 90+% AI at this point. I don’t know why anyone bothers looking at the “content” on that website anymore. I only see it just incidentally on my way to the job listings and I am always shocked at how terrible it is
with uBlock Origin you can just filter the feed
www.linkedin.com##[aria-label^=“Main Feed”]
I was about to say, could this post possibly have any more emojis? Although, from my knowledge of existing MLM hunbots I unfortunately already know the answer lol
Yeesh… the entire thing is so much secondhand embarrassment it makes me want to delete my entire profile just for the sake of it regardless of never using the actual site
Why not cut out the middle man and directly charge battery 2 with battery 1? Switch and repeat.
wow, you did not have to call out my subnautica in-cyclops power cell recharging stations for spare cyclops batteries like that
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Techbros rediscovering old principles, a tale as old as…well, since the tech industry.
A mechanical engineering student that doesn’t know the law of energy conservation?
Someone has been spending too much time on ChatGPT.
Yes, many electric bicycles power themselves while going down hills or costing. As for the other idea that you could recharge them just by pedaling … That exists already. Almost nobody wants it because it’s easier to plug your bicycle in. The point of the electric bicycle is to do less work, not to do more. Otherwise you would get a regular bicycle because it weighs less.
Regen braking exists, and everyone does want it, because it gives free power when you hit the brakes. The reason nobody adds it is because up until recently, you could only have coasting or regen braking, and not having to pedal literally all the time is just far more important for bikes. There’s a recent tech, freegen? Called something like that, it lets you have both regen braking and coasting,
Does he have a fundme or patreon page? I think it’s worth supporting his research if it can be applied to cars and trains one day.
If somebody is an airplane engineer, is it possible to do something like that with planes? It would be great if planes could become environmentally friendly with such technologies.
There was actually a prototype environmentally friendly airplane designed and tested back in 2000 during a genocide in Yorkshire that I feel like isn’t talked about enough. The plane, using bicycle technology, was successful in transporting all of the local populace to safe territory with the help of a veteran Royal Air Force member and an American entertainer posing as a flight specialist. Really an incredible story and there’s still footage of the flight. but I don’t know the status of the airplane today.
Thank you for the levity.
Hello, I am the owner of a large investment fund and I am willing to offer 1 billion dollars to develop this young man’s technology
They are already trying to EV airplanes.
Is this serious or a joke? Regenerative braking and other energy recovery methods have been standard on electrified vehicles for decades. Electric planes do exist, but the problem is that the mass to thrust ratio for electric motors is worse than jet engines. Most successful ones are pretty small and light.
I think you don’t fully grasp the genious, magnitude and potential of Aryan Bhambure’s invention. A continuous self-charging loop would essentially eliminate the time wasted on charging batteries. There would be no limit on the range of a car.
That’s even more interesting for planes, given that a transfer is possible. As others have mentioned, the technology is heavy, which could make it unsuitable for planes. But if those limitations can be overcome, direct flights between all places of earth become possible. I think that’s an advancement to humanity that’s worth our support.
There was this browser game (on the BBC website IIRC) with a Wallace and Gromit theme, in which you build stuff.
It had a level in which you make a vehicle-ish contraption and see how far it goes [1]. I managed to setup a motor and generator in such a way that it effectively increased the vehicle’s range by quite a bit.
I don’t remember well enough now, but I think the generator didn’t give as much resistance as the energy it was creating.
or more like whatever contraption you can make to get the dummy to go as far as possible. Could even be a cannon, launching the dummy. ↩︎
WOOOOOOOOOOOOOOOOOOOOOOOO!
Aw man, Lemmy finally got a LinkedInLunatics instance? How long has this been here? That was like the last thread I’ve been hanging onto with reddit. Finally, this place feels like a genuine alternative 🎉
The community (which isn’t an instance!) has been there for a couple of years already: https://sh.itjust.works/post/27701
If you haven’t come across it before there is the Lemmy Explorer tool (with options for Piefed and Mbin as well): https://lemmyverse.net/communities
Welcome to the fediverse’s LinkedInLunatics, my friend!
I have a better one: charge from temperature gradients as it moves through new areas.
mechanical engineering student
Did not pay much attention in high school
Look out for v2.0 which also features a sail on the front which you blow to go faster.
Okay, but blowing on a sail to go faster is actually a thing. Mythbusters even stated that they did their experiment in the worst method (i.e., not using modern designs and methods), and still found that a fan on a sail could make it move. It’s not free energy, but let’s not ignore how cool sails are.
This sounded very wrong to me, so I googled and apparently they had a setup where the reflected air from the sail caused a net flow in the opposite direction allowing them to move forwards. But that is less effective than just blowing the air straight backwards without a sail.
Look for the sail car video from Veritasium. With a chain drive you can out run the wind using the principles of sail propulsion.
When the battery runs out, you pull over and “pedal” to recharge the battery, then you’re good to go again!
now that is genius!
I don’t own one of these, but that sounds actually useful if for example I’m about to climb a big hill and want to pedal at a less strenuous pace (but for more time) than would be needed to overcome the slope.
Assisted modes already exist, and regenerative braking already exist
But this joke is more funny :)
But do e-bikes have regenerative braking? I haven’t seen that. I’ve been thinking that it would just be too heavy and clunky to be worth it.
Too heavy? You just run the motor in reverse which turns it into a generator and adds friction to do generative braking. There really isn’t any added weight.
Bikes normally have freehubs, a ratchet on the cassette (sprockets) of the rear wheel, when you stop pedalling the bike freewheels, without that the pedals would keep turning.
This makes driving a motor from the wheel impossible without heavily modifying the normal bike mechanics. That’s why regenerative braking on e bikes is rare.
Not if you have a hub motor. Those don’t interact with the gear system at all.
Yup, which is also why they’re really hard to pedal if the battery dies.
Only very cheap e-bikes have hub motors. They’re not a good idea precisely because they don’t interact with the gearing system. So you lose that functionality.
It’s not worth losing access to gearing just to get regenerative braking because the amount of power being used isn’t worth trying to recoup.
It needs a direct drive which is more weight than the other systems
Why would it need a direct drive? A mid drive can do the same thing they just don’t usually since you’d need to gear for it. direct drives are the most efficient at regenerative braking but they aren’t the only type.
Freewheel hub would prevent it.
You would need to put the freewheel between the motor and the pedals, and have an always-spinning chain/shaft
Could be done, perhaps, with significant added complexity (and hence maintenance). In practice it is not, to my knowledge there are no mid-mount regenerative system on the market. It is worth noting that mid-mounts are significantly more efficient than hub mount, enough so that even compared to hub mounts with regeneration, mid-mounts have more range for a given battery / wattage. The vast majority of hub mounts also do not implement regeneration.
You can find YouTube videos of people experimenting with flywheel-based regenerative braking. They’re completely impractical but pretty funny to see.
Motors are generators when run inversely:
Motors = put in power to get rotational movement
Generators = put in rotational movement to get power
You already have the heaviest parts on the ebike - motor and battery, just need some capacitors and charging circuit board which are light and not too big.
Cheap electric bikes I’ve ridden with regen breaking slow you down quite a bit.
It’s not difficult to get regenerative braking on a bike it’s just difficult to get regenerative braking on a bike that’s any good. Hub mounted motors are the least efficient type of motor because it’s just directly driving the wheel at whatever speed it can output, with no access to gear ratios. E-bikes that forgo generative breaking in favour of a more efficient motor designs achieve better speeds for any given amount of power usage.
So yeah you can absolutely do it. But it’s not a good idea for reasons that have nothing to do with the weight.
It’s like 3-15% energy reclaimed, not efficient
Yes, but is it possible to pedal and use regen breaking to recharge the battery when stationary? It does work like that in my car (plug-in hybrid) but I don’t know if e-bikes are the same way.
The traditional method of pedaling uphill less strenuously is to drop to a lower gear. You might go slower, but I’d bet even on existing e-bikes with pedal assist, this is something that’s already pretty reasonable now days.
That’s what gearing is for (you just go up the hill slower), but I can see the benefit to not being on the road.
Sure, but there are limits. One needs a certain amount of forward speed to maintain balance easily, and there’s a maximum speed that can be reasonably pedaled. If the hill is steep enough then in my experience reducing the gearing enough to make pedaling not too strenuous runs into the other two limits. If an e-bike can have a low battery topped off before the hill starts, then pedal-assist (at least) would take care of the need to lower the gear while going up it.
If you need a minimum speed to maintain balance, how are you going to pedal while stationary?
Better to have active regeneration, where you pedal a bit harder on flats to top up the battery for hills.
Kickstand, holding a fence, etc. That active Regen thing sounds great, if I buy one of these I’ll make sure it can do it.
One needs a certain amount of forward speed to maintain balance easily
Not true. One just needs to practice static balance. It’s a great skill to have so everyone should learn how to do it.
Also you can use the lowest gear going almost a walking pace and climb up really steep hills. That’s how we do it on MTBs. It also requires practice and good balance.
Ah, that would be a nice skill. I might even be better equipped for it now than when I was young because I’ve gotten into roller skating and improved my balance that way.
Gears
Incredible comment.
Nice to get a moment to pull out a classic
As someone who sucks at physics, I’m convinced that Trollface has proposed so many solutions around the internet to provide free energy, but the capitalists are conspiring to sabotage him, just as they did to N.Tesla.
The other one being to shine a light on a solar panel. For bonus points you include a mirror and a vampire.
I remember the one where he uses two magnets, and the one where he wraps his head with a bag and puts a plant inside it, so he can swim with infinite O2 supply.
