Grin Cycle Analyst settings help

[sirensynapse]

Ok weird...I set the power per human watt to .05W yet it ramps up exactly the same, right up to 49.5km/h in a second. Like it's going full power no matter what that says.
Oh dumb me. That has nothing to do with throttle, sorry. Brain is not on.

 

[DanGT86]

Maybe try turning all the PAS settings off in the CA

I have seen bikes set where there is a different speed limit when pedaling vs not pedaling.

If that isnt it then I would think the 49.5 limit is in the controller.

You could look through the controller settings to see if there are any speed limits in place.

If the number of motor poles is incorrect in the controller settings then the controller would be confused about the true motor speed.

Make sure to write down or save the changes so we arent making it worse.

 

[sirensynapse]

I suppose its possible it is set such that it wont operate throttle only without some pedaling being detected but I doubt it.

Nah, I was running the bike on the ground with just throttle earlier, when it worked.

Is there any way to adjust the power output when using the throttle? It's too intense, used indoors.

 

[DanGT86]

Ok weird...I set the power per human watt to .05W yet it ramps up exactly the same, right up to 49.5km/h in a second. Like it's going full power no matter what that says.
Oh dumb me. That has nothing to do with throttle, sorry. Brain is not on.

If the wheel is off the ground then it will still
Spin up to full speed even with very low power.

 

[sirensynapse]

Disabling PAS did nothing. There is no speed settings in the controller interface.

 

[DanGT86]

Disabling PAS did nothing. There is no speed settings in the controller interface.

Ok. So just to review you currently have:
-Bike operates normally on throttle up to 49.5kph
-pedal assist does nothing

 

[sirensynapse]

Ok. So just to review you currently have:
-Bike operates normally on throttle up to 49.5kph
-pedal assist does nothing

Jap. I'm looking around...don't see where that 49.5 comes from at all.
There is nothing in CA or controller with that number at all. Too weird.

 

[DanGT86]

Does the controller have an Erpm setting?

That would be like a speed limiter.

 

[sirensynapse]

Does the controller have an Erpm setting?

That would be like a speed limiter.

I don't see anything like that. You are seeing almost all the settings in the two screenshots I have posted...

 

[DanGT86]

Yeah, what is weirding me out is that your max speed of 49.5kph is precisely half of the 99kph that the controller is set at.

That is to much of a coincidence to be a malfunction. Really seems to me like a setting is causing this.

Grin all axle motor is 23 poles which is what you are set for in the screenshot.

 

[sirensynapse]

Yeah, what is weirding me out is that your max speed of 49.5kph is precisely half of the 99kph that the controller is set at.

That is to much of a coincidence to be a malfunction. Really seems to me like a setting is causing this.

Grin all axle motor is 23 poles which is what you are set for in the screenshot.

Ja, I noticed that too. I'll try doubling that and see what happens. Actually lemme halve it, safer. I'll melt the bike down going so fast.

 

[sirensynapse]

I changed max speed without pedaling in CA and a max speed in the controller to 2 different values, neither effected anything. Still 49,5. There are no settings of 99km anywhere now, unless the CA is not reflecting the settings I'm tweaking with the desktop app. Those are matching...they saved correctly.
Weird bloody mystery.
Thanks for all the help. I hit the hay here shortly, is late in europa.

 

[DanGT86]

49.5kph might just be the max speed for your 7.5kv motor with a 48v battery

 

[sirensynapse]

49.5kph might just be the max speed for your 7.5kv motor with a 48v battery

Hard set somewhere? Still doesn't explain the throttle weirdness necessarily. There is a graph of the windings and speeds, I'll take a look at that. Gonna get the bloody thing on the bike rack today where I can toy with it without breaking my back.

 

[sirensynapse]

Ok, a breakthrough this morning. I detached the 6 pin torque cable (motor to CA) and put it back in, and the motor took off. Now the pedaling is activating the motor finally and reverse braking works too. Seems the cable is just dodgy.
One weird thing though: now the display is not showing the human power bar at all, though it works with the cable unplugged.
And the wattage is sitting at 4watts even when I crank pretty good; though it does drop to negative 6 or so when braking. Weird.
I'll pass this on to grin and see if they make sense of that all.
So I'll try to tweak things a bit and get it rideable now.

 

[offGridDownUnder]

I had no clue what the heck those letters means, thanks.

Perhaps you should read through the manual before you do any more thrashing about in the settings.

I also recommend you read and follow through the process laid out in the Unofficial CA manual. That will take you to a known state, and give guidance on further steps:
https://ebikes.ca/documents/CaV3_UUG_3-0e.pdf

 

[sirensynapse]

Perhaps you should read through the manual before you do any more thrashing about in the settings.

I also recommend you read and follow through the process laid out in the Unofficial CA manual. That will take you to a known state, and give guidance on further steps:
https://ebikes.ca/documents/CaV3_UUG_3-0e.pdf

I don't mess with anything I don't understand. Thanks for link, I will read it. I read most of the manuals, of course.

 

[DanGT86]

Hard set somewhere? Still doesn't explain the throttle weirdness necessarily. There is a graph of the windings and speeds, I'll take a look at that. Gonna get the bloody thing on the bike rack today where I can toy with it without breaking my back.

Hard set by the laws of physics. Motors have a relatively fixed relationship between rpm and voltage.

If the motor is 7.4rpm/v and you have a 48v battery then at full throttle with the wheel in the air that would be:
7.4 X 48v = 355rpm
355rpm with a 26" wheel is about 45kph.

If your battery is 13 cells charged to around 54v then that would be closer to the 49.5 you are seeing.

Obviously the weird throttle behavior and the runaway issues from the wiring are not good. But the top speed around 49kph seems correct for your motor and voltage and not indicative of a problem or a setting.

 

[sirensynapse]

Hard set by the laws of physics. Motors have a relatively fixed relationship between rpm and voltage.

If the motor is 7.4rpm/v and you have a 48v battery then at full throttle with the wheel in the air that would be:
7.4 X 48v = 355rpm
355rpm with a 26" wheel is about 45kph.

If your battery is 13 cells charged to around 54v then that would be closer to the 49.5 you are seeing.

Obviously the weird throttle behavior and the runaway issues from the wiring are not good. But the top speed around 49kph seems correct for your motor and voltage and not indicative of a problem or a setting.

Cool, thanks for the info again. I'm a slow rider, chose the slow wind intentionally.

 

[lnanek]

Phaserunner controller does support field weakening, though. So depending on how many amps he plugs into that setting, he could exceed the rpm/V spec for his motor by 5 to 10% in my experience. Takes a lot of power, though, so you need an over spec battery and BMS.

 

[sirensynapse]

Nope, still not working. Pedal power and throttle both cut out after one second on the ground. Worked on stand a while. So must have something to do with torque. I'm done with this piece of shit, and frock grintech and grin eu for dumping this garbage on my doorstep. It's going back.

 

[DanGT86]

Sorry to hear it didn't work out. Id hate to think its a simple setting away from working. That being said if you are burned out by this experience and wont be confident in Grin's tech support in the future I totally get it.

You bought some nice stuff there and I'm sure it wasn't cheap. Along with premium parts should come premium support and a premium ride. If that is not the case then you will probably always be frustrated when you think about this struggle to get it going.

I have spent so much time in my life staying committed to projects that weren't making me happy just because of the time and money I had already invested. Life is too short.

Best of luck to you. Hopefully you get some kit that works great for you.

 

[raedy07]

Nah, I was running the bike on the ground with just throttle earlier, when it worked.

Is there any way to adjust the power output when using the throttle? It's too intense, used indoors.

what motor are u using, how many W?

 

[sirensynapse]

Hi, I never followed up on this...it was a bad part, controller or throttle, dunno which, just sent them both back, new ones work flawlessly. What a fecking headache that was, but now I am in heaven!

 

[raedy07]

i have also some issues with CA settings. i bought CA V3, Baserunner controller, throttle. combined it with a halless hub-motor and DIY battery 48V/1.5kWh. all working fine until i wanted to add brake regen with Magnetic Ebrake Cutoff sensor (also Grin).
following advice from Grin-EU i changed EBk Signal Lvl from 'low' to 'high'; only difference is that now i must keep brakelever pressed otherwise d throttle will not work! not what i want.
on 'low' setting throttle works normally. but although d 'brake-icon' appears on CA when i activate brake, there is no brake effect. whichever side (lever) i put it on doesn't matter, right? it can only brake d back wheel; or rather, wherever motor is.
i don't use PAS or temp.sensor.

something very strange happened: when i changed Signal Lvl from 'low' to 'high' d A and W max CA-powersetting both added 1 digit; they now show 400A and 15kW !! when i set them back to 40A & 1500W i have no power, so new (high!) setting seem correct. also i am now told (by CA) i use 190Wh/km, also 10x too much. obviously wrong - what could be d problem&solution here?