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Comment by jacquesm

4 years ago

Oh, sure, I'm making it all up. I just spent two months picking apart the Bosch e-bike system, I think by now I know what I'm talking about but feel free to prove me wrong and show me how you're able to get your battery to talk to a Bosch controller without using a Bosch BMS.

Hint: you won't be able to, the key is embedded in an NXP processor that has it's fuses blown (both sides, controller and battery) and any kind of hacking you want to do will have to be at the sensor level and even there I would advise you to use an older version of the firmware because the newer ones are very good at detecting such hacks.

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jacquesm

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llampx  4 years ago

I think you both can be correct. The more expensive e-bikes as sold in the EU are DRM'd to the hilt, whereas cheaper bikes sold elsewhere or assembled from kits won't have any restrictions. On reddit/r/ebikes you can see some crazy builds that would get you a hefty fine in most of Europe.

  • jacquesm  4 years ago

    I did write 'these bikes', as in Bosch based e-bikes, specifically s-pedelecs. It is pretty obvious I'm only talking about this kind of bike, not about 'all bikes out there including those in other countries and cobbled together from parts'.

    • nybble41  4 years ago

      No one else was taking specifically about Bosch systems (edit: in the comments, not the article) until you came along, and your original reply didn't mention them by name. There are lots of e-bikes out there, including pure "pedelecs" with no hand-operated throttle, which do not use Bosch parts and do not have torque sensors. They assist when the pedals are moving, not when you're applying pressure.

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bob29  4 years ago

You're in the realm of replacing original parts with the new battery mod. Why not replace the Bosch motor controller with any available motor controller that lets you configure your throttle inputs however you want?