Luna BBSHD Ludicrous V2 controller documentation

[marcos]

Its not a V2 because it has a single big capacitor. V2 has 6 smaller caps, and all of them have dark housings

[ncmired]

It's not a Luna Ludicrous V2 (picture in your other post) ... Guessing by the ribbing it is a V1 but not positive.

Product pages are https://lunacycle.com/secret2/ and https://lunacycle.com/secret-v2/

[humblebee]

Hi,
I'm trying to determine what version this ludicrous controller is. I was told it is a V2 but the internal component placement sure looks like a V1. Is there a sure way to tell just visually?
Thanks

[Rob13]

Hey Rob here, I have a question and wondering if any of you can help. I have a v2 controller that I'm trying to set up for the first time. and i think i made a mistake updating the firmware because i keep getting the message in the attached pic and can't connect with the vesc tool after i made an update to the firmware . So wondering how to fix it?

[Bullfrog]

Oh I totally missed this notification.

Bullfrog the controller won't work out of the box with 72V battery because its an OverVoltage scenario for a default 52V battery. You just have to go to the vesc tool app, BIKE CFG tab, pick the 72V battery presets (this will fill in the settings) and then hit the WRITE button.
The 72V preset limits battery current to 60A. You can set it higher if you want, but I'd recommend starting at 60A and see how it goes, in my particular bike and with so little flesh on my bones it was a bit scary.

Your firmware may be too old, and if your app is the latest you might have to update the firmware to use that new app. Link to the app is in the user manual (I'll check if link is working now)

D. At 72V you'll rarely hit FW speeds as it would engage at very high pedal cadence and the controller limits the motor rpm to avoid it generating more than ~90V, you can check that in the logs (id current). If you would like to make sure no FW is applied I can add a slider to the TUNE tab, its a bit of code that I could borrow from the M600 UI.

Thanks Marcos. My big hold up now is getting my tablet to work with the latest V2 firmware...but that is my problem and not anything you can help with at this point. I may need to buy a new tablet since the one I have is getting old.

The Field Weakening slider would be nice but no hurry to get it done. You have to understand that the way I use my bike is "NO" pedaling and I gear it so the motor runs fairly efficiently plus never gets me going faster than I can avoid the trees on the single track where I am riding. With my 28 tooth chain ring and something like a 35 tooth rear sprocket and running a 72v battery....my top speed should be about 18 mph and I plan to adjust my gearing if needed so I can NOT exceed 18 mph without any Field Weakening. So when I hit 18 mph, I do NOT want Field Weakening to allow me to go any faster...since those trees start to jump out in front of me if I exceed 18 mph :) AND I don't want any Field Weakening because that will add additional heat that I don't need since I am already pushing the motor pretty hard by not pedaling.

Thanks again...your help is priceless, well almost priceless :).

Just a tidbit for anyone with an older Android device...I believe you need to be running Android 10 or higher to load and use the VESC tool. I had an older tablet I was trying to use and it wouldn't work...got a new tablet and the things you can program with the new V2 Ludi controller are totally amazing :).

[ncmired]

When trying to download the VESC Tool (from the user manual link https://public.3.basecamp.com/p/3vQF...emSnoEdNCAhiPi), basecamp reports, "Public sharing has been turned off" for this file.

The Basecamp link is still unavailable (sharing turned off) - is this still the correct place to download the BBSHD V2 controller .apk file?

[marcos]

Oh I totally missed this notification.

Bullfrog the controller won't work out of the box with 72V battery because its an OverVoltage scenario for a default 52V battery. You just have to go to the vesc tool app, BIKE CFG tab, pick the 72V battery presets (this will fill in the settings) and then hit the WRITE button.
The 72V preset limits battery current to 60A. You can set it higher if you want, but I'd recommend starting at 60A and see how it goes, in my particular bike and with so little flesh on my bones it was a bit scary.

Your firmware may be too old, and if your app is the latest you might have to update the firmware to use that new app. Link to the app is in the user manual (I'll check if link is working now)

D. At 72V you'll rarely hit FW speeds as it would engage at very high pedal cadence and the controller limits the motor rpm to avoid it generating more than ~90V, you can check that in the logs (id current). If you would like to make sure no FW is applied I can add a slider to the TUNE tab, its a bit of code that I could borrow from the M600 UI.

[ncmired]

When trying to download the VESC Tool (from the user manual link https://public.3.basecamp.com/p/3vQF...emSnoEdNCAhiPi), basecamp reports, "Public sharing has been turned off" for this file.

[Bullfrog]

New V2 Ludicrous Controller owner here...installed it on a BBSHD and using a V2 Eggrider display. Latest firmware flashed on the Eggrider. Nothing done to my V2 Ludi except installed it. Everything works great with a 52v battery but no throttle response from the BBSHD i.e. it doesn't move with a 72v battery.

Questions please...

A. Is the first post usually updated to include the latest link to the VESC App to load on my Android device? I believe my first step is to load the VESC app on my Android device and flash the latest V2 Ludi firmware.

B. Which version of the firmware should I flash if I am using a 72v 20s5p battery with HG2 cells that has a BMS capable of 80A continuous and 100A short term? The 5p HG2 cells can provide ~100A max with the 5p configuration.

C. Is a better way to ask question "B." above...which version is the latest stable version of the firmware I should flash to my V2 controller and which option in the drop down menu should I select for a battery if I am using a 72v battery (described above)? Obviously I haven't looked at the VESC options yet...that happens later today, hopefully.

D. Once I get everything working...is there a way to turn off or drastically reduce the field weakening? I plan to use my bike off road on single track trails and only need a max speed of about 18 mph. My gearing will be 28 front and 22 rear so I could be hitting the field weakening a lot and I want to turn it off to reduce the chances of over heating since I will constantly be using high/full throttle to outrun those riding with me :).

Thank You

[marcos]

Hi Bullfrog, you should connect over bluetooth to the controller and change the battery settings, there are 3 presets, one of them is for a 72V system which auto-fills the voltage thresholds. As for the turn-off, let me check the schematic

[Bullfrog]

I am also having trouble getting my set up to work with a 72v battery (everything works great with a 52v battery). Updated the firmware on my Eggrider and the 72v battery still doesn't work. Should updating the V2 controller firmware solve my problem? With the 72v battery, I can turn the Eggrider on using the Eggrider's power button but I can't turn it off. Thanks

[AZguy]

I feel that pain more than you can imagine - more than half my business the last year or so has been redesigning products to utilize other parts we can actually get and even then it's most often only good for whatever can be bought at the time

[marcos]

Oh the only reason why we are not making more v2 controllers is the silicon shortage. The bbshd controller uses very high end parts, one of them has been impossible to source for a long time

[ncmired]

Hi Paxtana, thanks for the follow-up - apologies for the typo / confusion, I was thinking of the BBSHD V2 controller, not the M600 X2 bike.

[paxtana]

I do not see anywhere on the X2 page that says this needs staff approval. That is only for V2 ludicrous for BBSHD, which is a separate but related project from the X2 bike.

Assuming you are referring to V2, availability is ultimately Eric's call. It makes some sense to hold onto these for VIPs as a value add to reward those that choose to do a lot of business with Luna, especially in light of how difficult and expensive it is to make more; what limited supply there is would be wiped out immediately if it was made publicly available. That said, I would not be surprised if it is rolled into some kind of black friday combo deal or that sort of thing. It's not like we have any BBSHD bikes we still make with this as an option anymore anyway. But that is just speculation on my part.