Marcos DioneMay 6, 2024

I wrote a post about #ebike, #router, #brouter, #EV and #hybrid #HPEV cars, where I ask:

* what are good parameters for ebike routing?
* can we improve elevation data for the road network?
* do you know of restaurants, bars, bakeries, etc. that allow for recharging ebike batteries, even for a fee?

#OpenStreetMap could probably include that info.

https://www.grulic.org.ar/~mdione/glob/posts/yuba-kombi-%2B-virvolt-900-a-trip-review/

I'm open to ideas!

Yuba Kombi + Virvolt 900 - a trip review

Editor's note: another dictated1 Last September or October we bought a Yuba Kombi and we took it to a bycicle repairman to install a Virvolt 900, which is a 691Wh battery and a 80Nm, 36V motor. This i

.:: Marcos Dione/StyXman's glob ::.
Show threadMarcos DioneMay 6, 2024

I just watched again the talk I mention, and they were concerned about #EVs (cars). Still, they make the assumption that most energy is only wasted in friction against the wind. I think they make the mistake of assuming that EVs, when going down, regenerate 100% of the energy they used when going up. The calculation is way more complex than that, and from what I read in any case the number seems to be closer to 10%.

Finally, if you make a trip that only goes up, you never recover that energy.

Show thread😀🚲May 6, 2024
@mdione my bike is getting about 20% regen, and that's with it limited to 500W and needing the friction brakes, should be able to take 750 with this battery or 1000W with a bigger one.
Show threadMarcos DioneMay 6, 2024
@enobacon regen? wow, how?
Show thread😀🚲
@mdione e-bikes.ca GMAC geared hub motor and baserunner controller. The 500 vs 750 thing seems to be a bug in the software though where max regen amps is off by some factor, so I don't love the proposed workaround where I just set it to a level that would blow up the battery if it was the actual number.
May 6, 2024 at 6:16pmWeb