sirensynapse
Established
You just melted my brain. That is all way beyond my level of tinkering, sorry. Hope someone else can help. I am using the grin all axle motor...you asked earlier. Watts? That varies moment to moment, not sure what you mean.
Grin Cycle Analyst settings help
- Thread starter sirensynapse
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i meant power-rating; el.motors can deliver loads more power for a certain time, also depending on cooling. guess it's a bench-mark. correct me if i'm wrong.
like my hub-motors' sticker says 200W, but is has no problem to deliver 1500W for (so far) 10 mins. just gets warm.
sirensynapse
Established
I don't know how that rating works...just that it is rather meaningless.
Sounds like whoever is at "Grin-EU" either doesn't know how those things work, or didn't understand what you wanted to do, or there was a miscommunication or mistranslation somewhere with terminology. I'd have to see all of both sides of the communication to figure out which.
If there's no braking, there are several possible problems.
The most likely is that you haven't set the baserunner up to do braking per the voltage range you have set the CA to output on the throttle while you're holding the brake lever engaged.
The way the CA does brake regen is described in the manual, and so is the BR's method in it's manual; they both have to be setup for the same throttle range of braking, and then you have to set the BR up for doing regen braking.
Assuming the CA and BR are setup properly, then when you engage the brake input of the CA from your lever, you'll see the brake lever icon in the lower left of the CA screen. That then turns your throttle into a braking control instead of a throttle (nothing actually happens *just* from the brake lever, unless that's what you want in which case you will have to set it up differently). The throttle now outputs a voltage of (default) 0.8v, and as you increase throttle it lowers the voltage down to 0v at full throttle.
The BR must be configured to read this voltage range as the brake input range on the throttle input, or it won't do any braking.
If you don't want variable regen and just on/off regen (not usually desirable) you'd still set the BR up the same but the CA would be set to always output 0v on the throttle wheenver the ebrake input is engaged, effectively ignoring the throttle as a brake control.
Additionally, your motor must also be a DD hubmotor or other hubmotor that does not have a freewheel (GMAC, etc) inside it. If the motor system is a common geared hubmotor or middrive motor, it cannot do regen braking because there is a freewheel between the wheel and the motor, preventing it from backdriving the motor to create regen or braking force.
Exactly where is the "signal lvl" you're changing? What specific menu?
I know that if you change the Shunt Mode from low to high, then it changes the range of current the shunt measures. IIRC it's in the advanced setup menu, and can be set to High Range (for very high current systems like cars, etc) or Low Range (normal for ebikes, scooters, etc). It's part of what you setup when you are entering the shunt resistance in the calibration menu, and all your other intial system setup stuff like LVC and system voltage, etc. I don't recall the page in the manual that covers it, but its at least a couple dozen pages in.
If changing ot the wrong range makes your system work, it might mean that you have a limit set somewhere that changing to this mode also raises that limit above what you are actually using (though it shouldn't make it work, and if it does it would mean there's a bug in the CA code).
With a baserunner, you want this set to Low Range.
can't supply that as we discussed it over d phone. coz email was not answered. b4 i bought "Magnetic Cutoff Sensor for Adding to Convert Regular Brake Levers to Ebrakes" we had discussed issue so i'd say he knew pretty well what it was about. i just noted "setup menue > ebrake sensor: change low > high" while we spoke. misunderstanding not impossible as he's native french speaker and i'm not.
6.12 Setup Ebrakes and Regen. in CA manual, page 27
thanx for detailed answer, i'll send feedback asap.
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i've done all of d above. st Voltages, synchronized BR with CA.
brake lever icon comes on alright. and it cuts off d throttle. but however i move d throttle, no braking is happening. d 'intensity indicator' never moves away from d bottom
if i only could achieve at least this. but BR does not allow me to set both values (brake start and brake max) to 0V
it is
maybe you can see something wrong from d attached graph?
done
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If you have a common-port BMS, with the charge and discharge thru the same port, then it can block regen if the battery is full or some other limit is exceeded.
But if the controller is already creating regen and this happens, it would probably blow up the controller as the regen voltage could easily exceed the voltage it's parts can handle, without a load on it--so it's not likely that this is occuring.
If you have a separate-port BMS, with charge and discahrge thru separate ports, then it can't block regen as the FETs act like diodes in the reverse direction and let it pass thru even if they're turned off.
As for the screenshot, without also knowing what your system is actually sending it for braking voltages on the throttle wire, I couldn't tell you if the settings in the BR are correct for that or not.
This post Phaserunner startup issues (v6 and v1, each running an Ultramotor) has screenshots of the settings I used with two phaserunners running ultramotor hubmotors on the SB Cruiser trike, which successfully uses the CAv3 to use it's throttle-braking mode to control the variable regen of both PRs. My ssytem settings are probably different from yours, but you could compare the regen / braking control settings to see if they are like yours. I didn't include the CA screenshots of those settings, but they match the PR settings.
But if the controller is already creating regen and this happens, it would probably blow up the controller as the regen voltage could easily exceed the voltage it's parts can handle, without a load on it--so it's not likely that this is occuring.
If you have a separate-port BMS, with charge and discahrge thru separate ports, then it can't block regen as the FETs act like diodes in the reverse direction and let it pass thru even if they're turned off.
As for the screenshot, without also knowing what your system is actually sending it for braking voltages on the throttle wire, I couldn't tell you if the settings in the BR are correct for that or not.
This post Phaserunner startup issues (v6 and v1, each running an Ultramotor) has screenshots of the settings I used with two phaserunners running ultramotor hubmotors on the SB Cruiser trike, which successfully uses the CAv3 to use it's throttle-braking mode to control the variable regen of both PRs. My ssytem settings are probably different from yours, but you could compare the regen / braking control settings to see if they are like yours. I didn't include the CA screenshots of those settings, but they match the PR settings.
I just found this - and am having weird max speed issues - where did you get the 7.4rpm/v figure? is there a way I can find what that figure is for my front hub motor?
offGridDownUnder
Power poster
With my motors, it is printed on the side.
Apart from that, who made it, what does a search for their data show, what does the original seller show, etc.?
Apart from that, who made it, what does a search for their data show, what does the original seller show, etc.?
Thanks! I see it now on mine, I never knew about this limitation, and appreciate your knowledge.
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