Recent content by PetriK

I have had one of these too for some months and have used the voltage adjustment to optimize the volts for my pack depending on the need. Only today found this post, so: The middle adjustment you say is charge current ? And the third is for ?

Interesting idea. I have fixed some motorcycle trannies and those are really heavy duty stuff to be able to manage up to a few hudred of horsepower. I dont know how you planned to organize the shifters to move the gears. Somekind onf shifter drum like in the original gearbox ? If this is the...

The three mode speed setting in pedelec seems to work only up to 100%. if 120% is used, then the throttle must be used for increasing the speed for over 100% area. I like the pedelec mode so that its max 100% that i can get by pedalling, but 120% with a push a button eg when doing a steep...

Thx, my chinese interface does not have a flash button as its referred in the text. I assume the usb is providing +5v and gnd in addition to tx/rx, so there may even be room for one additional wire for reset ?

I only have experience of two geared hub motors, but is there really difference in frewwheeling ability ? The basic design is the same meaning that there is three reduction gears bringing about the same loss. No significant differences between different bearings. Am I missing something in the...

Very good info, thanks for sharing it !!! I am just wondering about two things: 1) hows the speed 1,2,3 settings. Did not get that formula from the spec ? 2) hows the checksum exactly calculated ? Sum of elements negated ? Been hacking several engine management protocols in past, therefore...

Noticed that you had used 115% as maximum setting. When I try to set anything above 100% all the values in the configuration file are not anymore updated and are ignored from user interface. Does the values over 100% really work regardless of the above ?

Added EB to GND but no wiring to EBS pins yet. Tested today and it feels like having the mode switch in a lower setting (33%) when doing downhill there is more "enginebraking". With mode switch at 100% there is virtually no enginebraking. My wattsup is in a position where its difficult to read...

Great info, thanks for this- did not know that you can use regen in passive mode without excessive drag. Need to test this and check the effect to average speed on my ordinary route.

Yes, youre absolutely right - left lever takes power off completely with a moroncycle ;), also usually i swap the levers so to that right lever is always front brske. Been thinking of replacing the rear brake with regen to the left lever- but i need the rear brake to keep the bike still at...

Yep, been thinking the same- adding a push button. Anyhow it does not feel right as an active motorcyclist my emergency procedure is to use the brake levers - and the engine is not shut off when depressing the brake lever. There must be a better way... ?

Would like to make regen to work, or even more importantly cut the power off when brake lever is depressed. So far have not been able to find a hydraulic bicycle brake lever that would have a switch implemented. One though occured is to put a pressure switch to the hyrdaulic line - but I am a...

Last trip according to gps and watts up 2.1ah, ~40min, 14.5km average speed 21km/h, top speed 37km/h. Peak 24Ap. Averag hr most of the time 110-130, i.e. 60% on that range so not so heavy. Its a 10ah battery, so lools like i could get some 50-60 km out of it down to 20% level. Bike is fairly...

Thx, picked up tire pressure and inert mass and frontal area. On my other hobby i try to save grams for better accelearation and speed. Tires are already changed to less rolling resistance ones ( according to sales pitch ) and pumped to overpressure. Sounds like the most efficient method...

I hope the author meant 75% efficiency not loss... So what are the biggest loss generaring components that can be affected ? My battery switch gets warm, so must be one potential area as heat means loss. Also fets in controller are still original. But thats it as much as i can figure out of...