Who has $9k to spend on #cargoBikes and wants to try this? With the #GrinMAC motor and #RegenBraking (in the rear wheel), front suspension, cable steering, should be quite the ride (caveat really steep hills vs 130lb bike with hub motor in 26in wheel, you need to keep some speed up and probably need dual batteries, but you can check on the ebikes.ca motor/trip simulator vs your actual hills.)
I'm basically stalled/stuck on the #GrinMAC#RegenBraking issue and haven't moved forward on any other aspect of this #BikeFriday project. I need the source code for the controller and/or cycleAnalyst? Somewhere there's a bug in the regen current limit, and also my desired braking scheme (hold this speed) should be easily supported if it could dynamically change that speed limit parameter. Between weak braking and hamfisted control, it's not an easy bike to use. 😞 Because software.
Yes, the bike lane drops on #BarburBlvd over Multnomah but it's also completely worn off by car traffic on the curve at the end of the offramp as drivers come around that at 70mph on their way to lake oswego... Take the Barbur bike lane past the Pancake House, Spring Garden off the top of the hill, recross i5 on 19th (giant amorphous / three car lanes, no bike lane 😡 for half a block) to old Multnomah & pop out back in the Barbur bike lane across from fred meyer.
We got ~500W #regenBraking here, could have been more, but the limit value is now set to 20A (59V, should be 700W) and not the 24-ish setting that seems to be required to reach actual 12A. CA says it got to -9.1 😕 I need a one-way fuse (directional circuit breaker?) and/or will need to retest whenever I upgrade or change software to make sure it doesn't overcharge. 😒
#regenBraking on #eBikes can save you the cost of your first replacement battery in brake pad maintenance (assuming that your max regen amps setting correctly limits the current into the battery so you don't destroy it... 😖 why is it that mine is set to 12A but the CA says we're only doing 6A, 250-300W instead of 700? The energy is there, it just quits resisting, we keep picking up speed until I engage the mechanical brakes. Best advice was to set it at 24A!? 😬)
Planning to never plug in this e-bike again if I can always make the kid pedal at a steady effort by engaging the regen braking to take up the slack whenever it's easier than ~200W. Been doing this for most of a month now and only down from ~50-40% since I started messing with it, plus I'm still only getting half of what I should from #regenBraking due to max regen current setting/bug that I haven't been able to find a workaround for yet (need to buy some rollers, have kid pedal stationary...)
Charging the #eBikes battery by pedaling down the hill after taking kid to school. (sorry about volume) you can hear where my brake switch bounces (I'm trying not to engage the mechanical brake but have to squeeze the lever just slightly for #regenBraking.) You can also hear where I had to stop pedaling because the hill got steeper than 300W (why isn't it 700, GRIN, because I'm the only person on earth with this problem? IDK, give me the source code.)
Today I realized that if I could ever figure out how to get my #eBikes' #regenBraking to work right (currently can't get over 300W), I could be pedaling hard to get down the hill, which should give me extra points with the piously sweating club that likes to grouse about how e-bikes will make us dependent on motors and don't you know lithium and cobalt mining are incredibly damaging to the environment sorry what I can't hear you over the CAR traffic.
For #regenBraking control on grin #CycleAnalyst#eBikes, can you just plug a second throttle in to one of the e-brake connectors? #BikeTooter One throttle for go and one for stop?
Looking at the #cycleAnalyst and #baserunner settings and #GrinMAC with the bike on the workstand, trying to figure out the #regenBraking#eBikes thing #BikeTooter. From everything I've seen, it should be configured for brake lever + throttle to vary the amount of regen force, but I can't feel any difference while turning the cranks by hand, showing over 5mph on the CA. Should it be perceptible in the work stand, or what am I doing wrong?
Still stuck on #regenBraking not working? The brake signal is clearly getting to the controller, I'm checking the settings but not finding clear documentation, and posts about it online are mentioning settings, like regen phase current, that aren't in the app? 😖
So the problem here was the android app - missing some parameters 😲 but the linux one runs fine on a chromebook with VM so we're off to the races (the stopping races, but I gotta tune down the max regen phase current maybe? The 80A had it coming on like a stick in the spokes, especially with ebrake=.49 and the 0.8-0.0V range mapped for #regenBraking.) #GrinMAC#eBikes
With max charge at 13A, it goes to 330W 🤨 i.e. 13/12ths... And the cycle analyst shows AMin=-8, which would be ~470W at 59V, but still 2/3 of my 13A charge limit... what is this doing? Definitely not going to save much brake pad wear here if it can't take in that 800W or so off my friendly neighborhood hills. #regenBraking#eBikes
The suggestion from GRIN is that I could apparently scale up the regen current setting by 59/25ths, but setting that to 28A does not seem like an ideal solution / does not inspire confidence (how much can I trust the BMS to correctly limit the charge current just-in-case, assuming I manage to first check with a meter that the typical actual current is not over ~12A?) #regenBraking#eBikes
Also, being told there's currently no way to do a dynamic regen clamp speed 😞
Ah no, the little g310 motor is not an option for regen braking, without an extra set of thrust bearings to counter the axial force from the helical gears. https://www.youtube.com/watch?v=KDuZFQy_Q-I
I was wanting to do this as the front motor and maybe later convert to a clutchless planet gear carrier for regen, or consider the ezee with off the shelf fixed carriers available, but 3.8 vs 2.3kg 🤔 how hard could it be to add thrust bearings... #regenBraking#eBike