Panasonic System Power Delivery Explanation

[poppy]

Originally Posted by flecc

Yes, it can be confusing, and it's the cause of many who try these briefly thinking they are no good. When they pedal fairly fast and don't sense power, they pedal even harder to try and get it!

The system's logic is simple though. If you are spinning fairly fast it sees that as you getting on fine and not needing help. If you are pedalling slowly, it sees that as you struggling, so it comes to the rescue. Logical when you think about it.

The important thing is that it allows it to be just like a normal bike in every way, unlike any other e-bike system. Help is there when it's genuinely necessary, but at other times you can be almost unaware that it is an e-bike, especially when the power is turned off.
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so if on flat you pedal slowly on top gear and maximum power you risk falling asleep due to so little effort, ha ha!

[flecc]

Originally Posted by poppy

so if on flat you pedal slowly on top gear and maximum power you risk falling asleep due to so little effort, ha ha!

Actually not far from the truth. Less than 100 watts are needed to propel the bike at moderate speed on the flat in still air, and in high power mode the bike would provide 57%, The balance of less than 43 watts is similar to the 50 watts our bodies use while seated on a chair.
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[Gyro]

I am learnig so much from these forums thank you all for your input.

[Danny-K]

Originally Posted by Gyro

I am learnig so much from these forums thank you all for your input.

Me too! Thanks to all, much appreciated.

[cogs]

i don't suppose the Panasonic system is available as a kit anywhere under any guise?

[flecc]

Not at all cogs, basically because it doesn't use a standard bike frame since the unit completely replaces the bottom bracket and all lower tube end parts.

The frames on the bikes using these have a curved metal channel joining to the down tube, seat tube and rear frame tubes, the motor unit bolting into the metal channel at three points.

In addition the battery is integral so has to have the appropriate space behind the seat tube, not available on normal bike frames.
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[cogs]

Cheers flecc.

It is becoming increasingly clear that what is required for the perfect electric bike are frame tubes that incorporate battery's within their structure, the battery's to have an indefinite life span, and which also have the quality of malleability that enables pleasing design.

i'll knock some up in the sheddy tomorrow..