ASI Bac855 programming via bacdoor

[Bilcoleeds]

hi guys, news to the forum

i recently took the plunge and purchased a BBSHD with an ASI BAC855 controller. all is fitted up and working well. but as i work in a shop i have been given access to bacdoor...

after having a little look around i find the software obviously very hard to use! there are a couple of things i would like to change, such as the crank rotations in which the assist kicks in are currently too long, and then also just a little more peak power or even just the rate it ramps up at as i could do with starting slightly lower amps but then increase too a higher peak when on full power with the throttle.

could anyone help with some directions on achieving this, or even link a slightly dumbed down guide on using bacdoor?

TIA

Craig

 

[amberwolf]

I don't know if it will work on the 855, but you could try the Phaserunner Suite from Grin Tech, http://ebikes.ca . I can't remember which version of the ASI that the Phaserunner is based on, but it might work. AFAICR it is a lot easier to understand than the ASI version of the software.

It might also do things your controller won't like, so it is your risk to try it out.

 

[fja2]

There's this android app called CYC MOTOR (BAC) that might help. I haven't tried it myself yet since I already got the controller going using the official ASI app, which I sadly haven't got access to at the moment.

We got the same setup so don't hesitate to reply with any questions you may have, I'll try to read my settings using the BACDoor app some day soom! I've been thinking about giving the CYC app a go since it got explanations for the various settings.

I subscribed to this thread.

 

[xenodius]

or even link a slightly dumbed down guide on using bacdoor?

Do you have access to ASI's support site?

The number of PAS pulses detected before engaging PAS assist is set with "Pedal sense delay" in Peripheral Configuration -> Pedal Speed Sensor. Increasing the ramp rate depends on your input; if you are using only PAS then you probably want to look at "Pedalec positive motoring torque ramp" and negative, in the same pane. Otherwise the throttle ramp rates are in Peripheral Configuration -> Throttle -> "Positive motoring torque ramp" and negative. Generally/for safety, I'd keep the negative ramp rates at least 2x as fast as the positive ramp rates.

System power is determined by "Rated motor current" (Phase amps) and then the rated battery current is determined with "Battery current limit". Note that Battery current limit is defined as a % of rated battery current, which is internally calculated by dividing "Rated motor power" / "Rated system voltage". Essentially it is battery amps in units of % of phase amps. If you set "Rated motor current" to 100 amps, but your battery is only 50 amps, set it to 50%.

 

[Bilcoleeds]

Thanks for the replys, i will get into the software again tonight and have a poke around armed with that information!

Next question, i keep seeing ‘race mode’ mentioned but as i have had no instructions etc whatsoever with regard to actually using the whole system i have no idea how to access it?

 

[fja2]

Thanks for the replys, i will get into the software again tonight and have a poke around armed with that information!

Next question, i keep seeing ‘race mode’ mentioned but as i have had no instructions etc whatsoever with regard to actually using the whole system i have no idea how to access it?

On most e-bike displays you got the option to switch between "eco"/"sport" mode. The race mode parameters are the ones who control the controller behavior when it's in "sport" mode. Personally I only setup the race mode parameters and have the bike start in "eco" mode so it's locked until i switch mode on the display.

I've since created a thread where I uploaded my programming parameters. https://endless-sphere.com/forums/viewtopic.php?f=2&t=111166

 

[robrob3141]

hi guys, news to the forum

i recently took the plunge and purchased a BBSHD with an ASI BAC855 controller. all is fitted up and working well. but as i work in a shop i have been given access to bacdoor...

after having a little look around i find the software obviously very hard to use! there are a couple of things i would like to change, such as the crank rotations in which the assist kicks in are currently too long, and then also just a little more peak power or even just the rate it ramps up at as i could do with starting slightly lower amps but then increase too a higher peak when on full power with the throttle.

could anyone help with some directions on achieving this, or even link a slightly dumbed down guide on using bacdoor?

TIA

Craig

 

[robrob3141]

Hey. Do you have access to ASI? I bought the asi bac controller and the vendor doesn't respond to my messages. I recently bought a battery with a higher voltage because my old one quit.. And I have no way to change the nee voltage settings on my controller. Please help me. I need my bike to get to work. Paying Lyft is killing me. I'm going to lose my job and home. Rob

 

[robrob3141]

Hey. Do you have access to ASI? I bought the asi bac controller and the vendor doesn't respond to my messages. I recently bought a battery with a higher voltage because my old one quit.. And I have no way to change the nee voltage settings on my controller. Please help me. I need my bike to get to work. Paying Lyft is killing me. I'm going to lose my job and home. Rob