Regenerative braking on e-bikes

[wepn]

I'm trying to decide if that's a 512bb in the reflection on the gif ...

It is possible.

 

[Zimmerframe]

It's not the energy saved or range regained that's the main advantage on a bike for me. It's the considerable extra braking power...far fewer brake pads is pretty good as well.

Being able to brake without using the barbaric friction and wear method is a huge bonus, I'll give you that.

 

[wepn]

Being able to brake without using the barbaric friction and wear method is a huge bonus, I'll give you that.

Yes but of course there's always a trade off. Batteries in general aren't particularly happy about the 1 kW spike in the arse they get every time you hit regen. Considering the cost of batteries that's a pretty big spike. Regen really demands sturdy, larger capacity packs that are built to deal with it.

 

[Beekeeper]

Put the solar panel on your rucksack and the 240v inverter inside, together with your charger and spare battery. Scope out a sunny trail ?
Endless weeks / years of fun without the need to go near the grid ️
Your new limiting factor:- scoping out sustainable off-grid food and water

All this for less than £60 on Amazon. Unbelievable!

Will it work? Probably not
Is it practical? Absolutely not

 

[Zimmerframe]

It is possible.

Uhmmm .. nope .. bah .. I did like then though .. I did wonder for a second if it was a Lamborghini esparda, but the bonnet line is higher .. uhmmmm .. It's not a 308gt4, the bump strip is too pronounced for starters ..

A very early Lotus Esprit none Turbo ?

 

[Beekeeper]

Put the solar panel on your rucksack and the 240v inverter inside, together with your charger and spare battery. Scope out a sunny trail ?
Endless weeks / years of fun without the need to go near the grid ️
Your new limiting factor:- scoping out sustainable off-grid food and water

All this for less than £60 on Amazon. Unbelievable!

Will it work? Probably not
Is it practical? Absolutely not

With picture

 

[Zimmerframe]

Yes but of course there's always a trade off. Batteries in general aren't particularly happy about the 1 kW spike in the arse they get every time you hit regen. Considering the cost of batteries that's a pretty big spike. Regen really demands sturdy, larger capacity packs that are built to deal with it.

But the amount you're putting back in is relatively small so could be buffered with a capacitor ?

 

[Zimmerframe]

With picture

Beekeepers winter project ideas :

 

[wepn]

But the amount you're putting back in is relatively small so could be buffered with a capacitor ?

Or a super capacitor maybe?

 

[Zimmerframe]

Or a super capacitor maybe?

Yes .. a really good one .. maybe a super one ..

 

[Zimmerframe]

I'm imagining a giant gimbal. I hope it looks something like this.
View attachment 20961

OK .. that took some searching ! I can sleep tonight now ..

It's a Lamborghini Marzal in the reflection !

Lamborghini Marzal - Wikipedia

 

[wepn]

OK .. that took some searching ! I can sleep tonight now ..

It's a Lamborghini Marzal in the reflection !

Lamborghini Marzal - Wikipedia

That really is very impressive and a useful skill I'd say.

 

[Zimmerframe]

That really is very impressive and a useful skill I'd say.

I think the most impressive thing is your little red Gyro-X car/bike @apac prototype, is worth $5.6 MILLION !! I'm starting to wonder if I paint the Kenevo Red and stick on some stabilisers held in place with hydraulic bonnet struts, I could be sitting on a lot of money !!

 

[Shifty]

@Zimmerframe im also hoping it will give my air conditioning unit a bit of a boost as well. Although the controls do interfere with my getting to the ashtray ?...

 

[Beekeeper]

OK .. that took some searching ! I can sleep tonight now ..

It's a Lamborghini Marzal in the reflection !

View attachment 20967

Lamborghini Marzal - Wikipedia

That’s almost a Lotus Esprit / Delorian
Who is copying who?

 

[Zimmerframe]

@Zimmerframe im also hoping it will give my air conditioning unit a bit of a boost as well. Although the controls do interfere with my getting to the ashtray ?...

View attachment 20968

I'm a little surprised you didn't add a cigarette lighter into the steerer tube - it's made for it....

 

[Haedesz]

Haven't read thru all the posts here but this already exists to some degree on Klever brand commuter bikes (ie: Klever Xspeed), which is a daughter brand of Kymco.

These use a rear wheel hub motor which can act as a dynamo when freewheeling downhill. It just reverses the action of the motor - supplying energy to the battery.

 

[Zimmerframe]

That’s almost a Lotus Esprit / Delorian

I didn't realise you knew other cars existed ? I always presumed your 1975 Datsun Honey Bee Drifter was where your car knowledge ended :

 

[Beekeeper]

I didn't realise you knew other cars existed ? I always presumed your 1975 Datsun Honey Bee Drifter was where your car knowledge ended :

View attachment 20980

I’m pretty sure my uncle had a 1975 Datsun ?

 

[Zimmerframe]

I’m pretty sure my uncle had a 1975 Datsun ?

At least tell me you have one of these ???

 

[Beekeeper]

At least tell me you have one of these ???

View attachment 20981

No but I’m sending out Xmas stocking ideas ??

 

[Zimmerframe]

Bee riding stockings ??

 

[Zimmerframe]

Maybe a little something for Mrs Beekeeper for xmas ???

And on that note .. I shall not be defeated .. the rain keeps getting worse .. so it's time to admit I've beaten the weather and go for a ride/slide/skid/fall/spash/mud bath.

 

[apac]

capacitors.
I thought id just say it one more time, to complete the thread. Lol.

 

[Gavalar]

I was wondering when the manufacturers are going to start fitting regenerative brakes on e-bikes to extend the range.
On long down hill sections Im sure you would get a good amount of electric back !

KERS { Kinetic Energy Recovery System } would be great although the costings to integrate such a system I think would not be worth the limited benefit, the automotive system is pretty much a store and shoot scenario as the energy is more or less used immediately when more pressure is put on the accelerator thus giving greater acceleration from out of a corner for instance, maybe the answer would be more efficient motors requiring less battery and so resulting in a much lighter package and lighter bikes.