Endless Sphere

It is most likely to be a temperature sensor issue, whether it is a real overtemperature problem or not. It might not be in the sensor itself, but could be inside the controller, with a wiring fault, or circuit board problem, or even a faulty input on the MCU chip itself. But something else to consi...

The 441 is unipolar, and the 411 is bipolar. The difference is: https://www.electronics-tutorials.ws/electromagnetism/hall-effect.html Bipolar sensors require a positive magnetic field (south pole) to operate them and a negative field (north pole) to release them. Unipolar sensors require only a sin...

Glad it was an easy fix.

My yuba build has a 5404 I believe, higher end cell man controlle. I have the mount kit minus the geared motors I smoked for the urbancommuter mid drive kit he sold. I do have a small DD motor I thought I may try to replace it with but never tried it. NuVinci hub bike kit still boxed that never mad...

For some reason, it makes me think of The Prisoner, or perhaps just Secret Agent. (despite the most famous car from that being a Lotus)

Petterflensburg wrote: ↑

Apr 11 2021 3:52pm

If not, that should become industry standard.

Unfortunately, the longer you are into this, the more you will discover the only industry standard is not having one.

If you attach the pics directly to the post, using the attachments tab, then not only will anyone that can see the post be able to see the images, but they'll also be kept with the post regardless of what google decides to do with the service you're using for them--they've dumped more than one of th...

I thought the wires ha, hb, hc have corresponding hall sensors? I tested it using an ebike tester -hb was the one not lighting up Ah. Different equipment uses different markings for various wires. ;) To find out which sensor is HB, trace the wire from the HB wire to the sensor it connects to. If yo...

Matteo's Mobile Bicycle Repair wrote: ↑

Apr 11 2021 7:19pm

So yes its set to 23 poles but because im running the system dual motor, im supposedly supposed to set Rshunt value to 0.5 but when i try to do that it automatically jumps to 0.76....

You have to set the CA to high range mode to use less than .75milliohm shunts.

Check with Grin Tech http://ebikes.ca and see what they can do for you on the TripWire sensors they carry.

Slatanic wrote: ↑

Apr 11 2021 11:09pm

Where is the hb hall sensor on this?

What is an "hb" hall sensor?

If you are looking for the speedometer sensor, it is the one by itself in the board nearer the axle than the stator.

Thanks--I don't really know exactly what I'll need yet. Part of it depends on how the stuff from the Egrom works out, once it gets shipped here and I can work on it, see what fits, what requires rebuild, etc. I suppose if you have anything with "wide" 26" rims (40mm+?), the rim itself...

TrotterBob wrote: ↑

Apr 04 2021 9:07am

As a bonus the very next light on that same road used to be the worst intersection in the entire town if not the whole county for vehicle accidents.

That's probably why they put the bike lane there: more likely to get rid of the cyclists so they dont' have to make more bike lanes.

However, something that still puzzles me is the throttle issues. The throttle does not work at all when the Grinfeon controller is connected. Could this still be related to the lack of communication with the LCD? Would we have to buy the Cycle Analyst from Grin in order to fix the throttle issues a...

APL wrote: ↑

Apr 11 2021 1:18pm

This motor building can get on your nerves after a while,.. they have harts made of cold steel you know..

Except for the heartless...I mean coreless ones.

One of the throttle that was installed is fried. When I connect it to my bike, the rear wheel turns as soon as I power on the controller (without even touching the throttle). That usually means the ground wire is broken, anywhere between the throttle and the controller. ;) I suspect that you may ha...

Do you mean that all of the throttles you have actually work, but that the controller they were connected to simply wasn't powered up? If so...how did you determine that the sensors in the throttles were "fried"? And how did you determine that the controller itself was "ok"? (the...

No problem. I moved this thread to the motorcycle forum for you. I also merged your new thread for the same thing with this existing thread, because its' rude to abandon those already trying to help you, and start over like that. We still need to know what you mean by "changing gears". You...

Results: Separately: The packs yielded 9.6ah and 9.2ah. In Parallel: Packs yielded 17.2ah If everything was perfect, I should have got at least 18.8ah. So difference (1.6ah) is an 8.5% efficiency loss roughly. Yes, you should get the same or better. Noticeably better really only happens when there ...

What does "change gear" mean? Are you changing motor settings or controls? Or are you changing gears on the pedal-only drivetrain? Is the motor controlled by a throttle, or do you have to pedal to make the motor spin? If the former, do the sounds occur when not moving any pedal drivetrain ...

Remember your BMS can only do a little bit of balancing at any one moment. You have cells that are more empty than full, and cells that are almost full, and cells that are full. Most typical BMSs will take days to weeks to fix that kind of imbalance, if you leave the pack on the charger full-time. T...

I've just recieved a MXUS 3K V3 from this ebay-er and he sells a 16" version https://www.ebay.co.uk/itm/16-MXUS-3K-Turbo-v3-Motor-3kw-3000w-6000w-peak-ebike-dd-hub-motor/133621899748?hash=item1f1c7c61e4:g:cxsAAOSwBLNf618O He sells spokes and rims as well as built wheels Not sure about the stra...

If the magnets are being scraped *only* when higher current is being applied, and not at no-load (like spinning full throttle with wheel off ground), then the magnets may not be glued to the rotor there, so when the motor pulls on them hard enough, they pull away from that spot and are able to scrap...

There are several problems with your setup there, which I've listed below the picture you've provided: https://endless-sphere.com/forums/download/file.php?id=293446 First, the bolt holding the torque arm to the frame would need the lockwasher and washer between it and hte torque arm, *not* between t...

Your new thread for the same thing has been merged with the first one you made for it.

Please don't make multiple threads for the same thing.