Hub battery?

[dodgyal]

Saw this on gizmag, not to sure the the hub battery, but I suppose it keeps the centre of gravity low!

E+ Electric Bike - the world's most advanced electric bicycle?

 

[Vikki]

Hmmmm, a head on impact with something that doesn't want to move will soon write that battery pack off

Looks nive, though.

Vikki.

 

[Mussels]

That looks like a whole heap of fail.

The battery connection would be an obvious point of failure.
Weight in the wheels is not a good thing, acceptable when it's the motor but why put unnecessary weight in the wheel? It badly affects performance and wheel reliability and as Vikki said the battery is vulnerable there.

 

[flecc]

It's a cheap version of the old American Tidal Force bike that Matra of France have now redesigned and market. Around £4500 last time I saw the price. These are 30 mph and very powerful brutes, pedalling never really needed:

 

[flecc]

And here's one of the Tidal Force originals, equally fast:

 

[dodgyal]

What about hub motor, battery and controller all in one hub?

No need to buy an electric bike, just a wheel! 25 mile range doubles with pedal assist, 30mph and 10-15 mins to charge.

Green Wheel - 3 in 1 wireless electric bicycle hub motor

 

[Mussels]

What about hub motor, battery and controller all in one hub?

No need to buy an electric bike, just a wheel! 25 mile range doubles with pedal assist, 30mph and 10-15 mins to charge.

Green Wheel - 3 in 1 wireless electric bicycle hub motor

So what have they left out to fit everything in there, apart from an obvious lack of battery capacity? Freewheels are quite bulky if I remember right from Fleccs drawings, I wonder what they have done to get their 25 mile unassisted range - used theoretical batteries maybe or got Mr. Sulu to tweak it.

 

[flecc]

What about hub motor, battery and controller all in one hub?

No need to buy an electric bike, just a wheel! 25 mile range doubles with pedal assist, 30mph and 10-15 mins to charge.

Green Wheel - 3 in 1 wireless electric bicycle hub motor

The figures will be nonsensical, 30 mph downhill more like, and as usual the range probably nearer half the claim. This is reminiscent of the petrol Cyclemaster wheel of very many years ago, motor, fuel tank etc all within the wheel, but inevitably low powered and shortish range.

A neat solution for simple conversions, but only ok if the needs are not too great since long range and high speeds are not possible on those batteries and an acceptable motor in that space.

Some of the small model type motors can be run on high voltages to give higher performance, but the resulting noise is unacceptable for e-bike use and range still not good.
.

 

[kraeuterbutter]

it would make a little more sense if at least the batteries are out-sourced...

it would not make it much more complicated to install the thing..
only one additional wire to the - let say water bottle - were the batteries are mounted (very hidden)

controller, and for that a lot of wires could be inside the motor

pros:
* less weight in the wheel, less rotating mass
* more space for motor and controller (or smaller Hub-case)
* bigger batteries possible
* better weight distributation (battery in the water bottle)
* battery can be taken easily with you for charging

cons:
* no real ones