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Old 09-21-09, 02:54 AM   #1
danoulz
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Smile Begining of an e-Brompton DIY project

I don't want to cross-post, so here's the link to the Pedelec forum thread:

http://www.pedelecs.co.uk/forum/elec...html#post59183

Cheers, Daniel
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Old 10-01-09, 01:44 AM   #2
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Smile

I've just received the battery from China. Again, I do not want to cross-post so here is the link to the Pedelec forum:

http://www.pedelecs.co.uk/forum/elec...html#post59988

Cheers, Daniel
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Old 10-09-09, 02:25 PM   #3
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My e-Brompton is complete !

See here for the build log, with plenty of close-up photos:

http://www.pedelecs.co.uk/forum/elec...html#post60641

Cheers, Dan
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Old 10-13-09, 05:18 AM   #4
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Smile

I think I nailed it now The layout is fantastic, it works really well for me ! See here:

http://www.pedelecs.co.uk/forum/elec...html#post60991

I love this e-Brompton !
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Old 10-18-09, 06:22 AM   #5
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Smile

Here's some interesting GPS tracking data:

http://www.pedelecs.co.uk/forum/elec...html#post61464

The electric motor assistance shuts-down somewhere between 20-25 km/h, and furthermore I only use it for going uphill (the Brompton was really heavy thanks to a decent shopping load)

I'd estimate that on the steepest hills I only contribute 60% of human effort. The rest of the time I am probably providing between 70% and 80% of the effort required (anything below the 20-25 km/h speed
curve).

At any rate, I have now learnt how to properly use the pedelec mode (choice of gearing, etc. due to speed-only sensor, no torque sensing), and I am beginning to enjoy it !

Cheers, Dan
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