Hop aboard the CAN Bus!

[Fatgadget]

Years ago I boarded a 24 bus to the Polytechnic of Central London studying Electrical and Electronics Engineering. Then I encountered the Hewlett Packard Interface Bus. HPIB.To this day I hardly know how it worked other than Talkers.Listners and whatnots!....And I completely missed the I/2 Interface Bus!....Anyway. It seems now the CAN bus (Barstard child of the 2 busses perhaps!) is now the defacto protocol far as e-bikes are concerned. Question to the Pedelec Intellect collective who can unravel this CAN bus much appreciated.

 

[matthewslack]

Trouble is, the hardware is not even half the story. It is just a pair of wires and interface devices and a low level protocol that allows packets of data to be sent between all the devices connected. Its hardware USP is very high tolerance to all the unpleasant 'noise' found in automotive environments.

But the content of the data packets is down to the product manufacturer who has a strong disincentive to make them understandable to outsiders. So you can easily build a CAN node to read the binary data packets, a so-called sniffer, but you are on your own if no-one has managed to decode them and publish the results.

 

[Az.]

Sounds like an uphill battle. It is so much easier to outflank problem and buy simple system with black and red cables.

Gouach claim limited success in this field:

Gouach Infinite Battery

Gouach Infinite Battery is the first Repairable, Refillable and Fireproof e-Bike Battery, Compatible with 90% of major bike brands.

www.gouach.com

They say their batteries are compatible with Bosch, Yamaha, Brose ETC