Luna BBSHD Ludicrous V2 controller documentation

[paxtana]

Proud owner of the amazing BBSHD Ludicrous V2 controller?
Here you will find all the info, software, documentation and support from the engineering team to get the best out of this extreme piece of tech.

>>> DOWNLOAD THE LATEST USER MANUAL <<<

The USER MANUAL contains updated links to software downloads. The development pace is pretty fast right now so the manual is a fresh export from our internal google docs documentation to keep users updated.


Latest software release: 2021-07-05
Firmware: v5.03
Android app: v3.02

[StvMan]

In the Power Settings heading you mention that in Power setting 0 the throttle and PAS are disabled.

Does this mean than I can’t use throttle only?

For reference, my Ludi V1 controller can be set for throttle only in PAS 0.

As you are probably aware, this is one of the primary benefits of the Luna line of Bafang HD mods, particularly on a single track switchback when you don’t want full throttle if you pedal but still want all power on tap through the throttle.

Best,
Steve

[paxtana]

You can use throttle only in any pas setting besides 0, just put the pas number on whatever throttle power you want it to have. This is way more power than standard or even V1 so it needs to be adjustable. Pretty decent chance if you blipped the throttle on singletrack while having access to the full power you could flip the bike over.

[StvMan]

Thanks for the info... as a follow up ....if I disconnect the PAS sensor, would this allow me to operate the bike in throttle mode (power levels adjusted via the PAS 1-9) while eliminating the pedal assist?

What do you think about this approach to throttle only operation?

To clarify...I totally understand the level of power we are working with and respect it’s potential.......my concern is with ability to finely meter the power via a throttle vs the less discrete power delivery (harsh) via the PAS (harsh initial throttle in high PAS modes assumed based upon other controllers/configurations I have used).

Just want to get some of my questions out of the way before I rig the unit.

Thanks again! ......... the Luna Team is Awesome!!!

Steve

[marcos]

At the maximum power level, throttle will always produce 100% power.
However, the maximum amount of pedal assist power can be configured independently from the android app.

By default the Ludicrous V2 PAS will provide 25% of the max phase current (150 phase Amps), but if you want to disable PAS you can set it to 0% and PAS will be disabled for all levels. Or if the default 25% is too much for you, you could go for 15% for example. I'm pretty lightweight so I use it at 8%.

This bit of info has not made it to this documentation thread yet, but will be included soon with screenshots.

[Jasdidit]

I look forward to making this change to my V2. Do you mean by default PAS is set to use 25% of 150 amps in level 9? I would also like to change the percentages in certain levels, for instance, make levels 1 and 2 super low, 3, 4, and 5 medium, and 6, 7, and 8 high, and 9 maximum. Would I have to make those changes with a desktop to USB connection, or with a mobile BT connection?

[StvMan]

Perfect!....Thank you......Steve

[BUD WHITE]

Great information here. I just completed install and have loaded all of my info on the VESC app per your instructions. Thanks a lot for answering all of my questions and making this very easy. Cheers.

[BUD WHITE]

One thing I forgot, is that I am unable to change my eggrider display settings. I just wanted to change from the 3 assist levels (1,5,9), to the 9 assist levels to better tweak my power levels. Every time I try to write, the bafang error sign in red at bottom of eggrider app shows up and the eggrider display numbers turn to --. Thanks in advance.

[Jasdidit]

First, are you using the Eggrider app to make the PAS changes? I have had this happen to me on my EggRider when it decides to spontaneously disconnect itself from Bluetooth. Or maybe it's my phone. Either way, I connect, then make the PAS Level change in Display settings, hit Write, and it is saved. I have not been able to make any reads or writes to the controller though, and that is to be expected. The PAS levels are a change to the display only though, so that is doable.

[BUD WHITE]

was able to set the power levels to the 9 option on the Eggrider display. Thanks again Jasdidit.

[BUD WHITE]

Thank you Marcos for the information.
Thank you Jasdidit.

[BUD WHITE]

Also, should I disconnect my gear sensor, or does the V2 just override it?

[StvMan]

I don’t believe there is a gear sensor connector on the current V2..... mine doesn’t....Steve

[BUD WHITE]

The gear sensor was never disconnected during uninstall of V1 controller and install of V2 controller. It is separate from controller install.

[BUD WHITE]

Okay, so my V2 powered fat bike with a 52 volt 27ah Sony VTC6 cell with 70 amp continuous works perfectly on my stand with PAS and throttle both in offroad and road mode on the eggrider display. However, once I sit on it and try to ride, the motor bogs down and doesn't even want to move when I hit the throttle. When I pedal it, there is no electrical power. I am stumped at the moment.

[BUD WHITE]

UPDATE:
I changed from 42 tooth chainring to 30 tooth with 13 tooth rear(nice straight chain line) and my PAS works perfectly in all 3 profiles, but if I hit the throttle from start or change to any other gear the motor shaft wants to break...
so my special sauce settings for my 70 lb. fat bike with 52 volt 27ah sony vtc6 70 amp continuous are as follows:
100% PAS current in all profiles
.30 s start and 1.20 s stop for PAS
.30 s start and 1.20 s stop for throttle
side note:
once I was going over 20 mph, I could hit the throttle in all profiles with no problem
top speed on GPS:
profile 1 (1500 watts) 32 mph
profile 2 (2500 watts) 35 mph
profile 3 (4500 watts) 38 mph...then the battery sagged dramatically after pinning throttle for 1/8 mile
what I would say...is that I definitely need a 21700 molicel 200 amp continuous 20 plus ah 72 volt battery, so that I can really push this controller( I like future proof overkill)
so my suspicions that the big fat bike tires, 300lbs.(bike and me), and 42 tooth chainring were preventing this beast from a smooth take off, and I believe I solved the problem
Cheers.

[Bobster]

where did you buy your battery from?

[BUD WHITE]

I bought the battery from Litespeed batteries out in New Jersey.

[StvMan]

Marcos, Gary, Kyle, and the rest of the Luna Team......the Ludi V2 controller is awesome!!! ....

I just finished pairing it up with my BBSHD and setting the PAS back to 0% using the VESC tool for my first test ride.

I started at level 1 and progressed through level 6 (holding off on 7-9 for now). The power delivery is impressive, with a clear sense of the field weakening effect as I got further into the throttle (at least that’s what I assume I am feeling...it definitely has more power range than the V1....and that’s saying a lot.).

These test runs were on my flat neighborhood streets...I am looking forward to getting out on the single-track trails to see how the torque feels underfoot.

Still exploring the VESC tool to see what limits I can tweak to add a bit more protection until I am more familiar the V2’s huge power potential (hopefully there is the ability to set Limit Amps, soft start/ramp curves, etc).

Anyways....awesome controller guys!!! .....Thank you, Steve

[marcos]

Now I'm keen to see you trying level 9!

Levels also affect the amount of pseudo-field weakening so level 9 will have a bit more end speed than level 6.

For now all motor configs are locked, but you can set ramping curves in 2 ways (this is generic VESC stuff):
* From APP->ADC (this is the throttle) -> General -> Positive ramping time. This will make the throttle response smoother and slower. Don't go below 0.3s, the time I tried a lower value I destroyed the nylon gear in less than 3 seconds, had to upgrade to a peek gear.
* APP -> PAS->Positive/Negative ramping times do the same for PAS.

You can also change the throttle mapping from APP->ADC->Throttle Curve. For this I recommend using the PC version of VESC tool, only because you see a nice x,y plot showing the curve shape which is not shown in the android app.

[BUD WHITE]

Excellent info again Marcos. Thanks.

[StvMan]

Level 9 will be this weekend!!!......thanks for the tips on the PC tool for VESC.

As to that, I am still having trouble connecting my PC (Surface Tablet) to the BLE. The BLE app that I tried made some progress but ultimately didn’t work. I will try a conventional, full laptop PC to see if it will connect. No problems with my android though.

[StvMan]

Still having issues connecting VESC tool through PC. Android no problem. I have tried my new MS Surface PC tablet w/ keyboard as well as my 4-5 yr old HP PC laptop Win 10.

is there anything special here?...It’s not populating my VESC on scan from the tool.

[marcos]

If the built-in windows bluetooth driver is not working, you can relay your android connection over wifi to the desktop

Its something like this:
BBSHD -> Bluetooth -> Android phone -> Wifi -> VESC Tool for Windows

On VESC Tool for android connect over BT to the v2 and under development tab, enable "Run TCP Server".
On VESC Tool windows, in the Connection->TCP tab type your phone IP address and click connect.

Its a workaround while I poke VESC developers about windows bluetooth support.

[Bertiebassett007]

Hi Marcos,

Thank you for all your information. I am a total new to Ebikes and I just put together my Luna X2 today. I took it out for run and everything seems to be good. I am totally confused about changing any of the settings and using the VESC tool. I had to purchase a new Android phone (I am an iPhone guy), but I don't know what I am doing to connect to the VESC tool. This is what I have done so far:

1. New Android phone
2. Downloaded new Luna VESC app
3. Turned the power on the bike on
4. Used the app to scan for VESC controller, but nothing comes up.

Do I have to change any settings on the C240 display & controller? Do I need a different controller to even use the VESC tool?

Thank you in advance for your help.

Andy

[marcos]

Hi Andy, the VESC tool app is only compatible with the ludi v2 controller option, it doesn't work with the the stock bafang controller.
If you have the ludi v2 option, try to connect with the phone right next to the bluetooth antenna (behind the chainring), we replaced a few controllers that got the antenna damaged during assembly.