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HOW TO: Throttle only without cutting PAS wire

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  • AZguy
    commented on 's reply
    One thing about this is it almost eliminates the usefulness of the brake cutoffs.

  • AZguy
    replied
    I set it up a bit differently. I set the display to three levels of PAS and set them so:

    PAS 0 - I=100%, S= 0%
    PAS 1 - I= 50%, S= 72%
    PAS 2 - I= 71%, S= 72%
    PAS 3 - I=100%, S=100%

    PAS designated assist level = 0
    Throttle designated assist level = By Display's Command

    I ran this all day yesterday and will say it works like advertised. It does what you would expect if you removed the pedal cadence sensor and it completely ignores if you are pedaling or not. Power is independent of pedaling and 100% controlled by throttle. Throttle delivery is perfectly smooth pedaling or not.

    Not much point in having more than three levels if you always throttle so I went with three.

    It's odd to get used to power not starting just by pedaling and for it not to stop when you stop pedaling but not that hard. It's much more moto than bicycle in my opinion this way. I know some people will much prefer this over the PAS way and it's nice to know it can be set easily without opening the unit to disconnect the cadence sensor,

    I figure I'll run with this for a week or so just to get used to it. I think I prefer the PAS way though. Again, nice to know this is so easy...


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  • dn9
    replied
    Originally posted by AZguy View Post
    Very, very interesting. I wasn't even going to bother trying this - I didn't see how this would work.

    The PAS levels and PAS in general has no effect any more. It's all about the throttle but you can pedal and still have that lusciously smooth throttle while still pedaling. Changing the PAS level makes no difference and if you don't touch the throttle you get no power while pedaling. The throttle just ignores whether or not you are pedaling and gives the throttle-only response. I think this is pretty much the same as cutting the PAS cadence sensor wire.

    Thank your for confiming, this is good news!

    Leave a comment:


  • barber
    replied
    I'm saving this one..

    Barber

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  • AZguy
    replied
    Very, very interesting. I wasn't even going to bother trying this - I didn't see how this would work.

    The PAS levels and PAS in general has no effect any more. It's all about the throttle but you can pedal and still have that lusciously smooth throttle while still pedaling. Changing the PAS level makes no difference and if you don't touch the throttle you get no power while pedaling. The throttle just ignores whether or not you are pedaling and gives the throttle-only response. I think this is pretty much the same as cutting the PAS cadence sensor wire.

    Leave a comment:


  • dn9
    started a topic HOW TO: Throttle only without cutting PAS wire

    HOW TO: Throttle only without cutting PAS wire

    Hello


    I have been messing around with the programming options since I'm developing a small custom circuit board to replace the display with a small micro controller + bluetooth (ESP32) + an app for android phones.

    The goal is to have a "road legal" mode which the bike automatically starts up in and can only be changed by application on the phone.

    Two modes are planned:

    * PAS only (throttle not legal, only use for walk with bike option(6km/h max))
    * Throttle only (PAS disabled)

    PAS only will be achived by cutting the throttle signal with transistor from custom board.


    So the problem is that I got one of the new BBSHD controller which cuts power to the current level when pedaling if PAS is activated.


    But I belive I have found a way to disable PAS by just changing the programming but as I have not mounted the motor on my bike yet I can not 100% confirm.
    I would be glad if anyone would try and confirm it works as intended on the new problematic BBSHD controller. (It behaved as intended when cranking the arms manually on my test bed)


    So this what I have done:

    1. Set Assist 0: current limit=0 speed limit=0
    2. Set Assist 9: current limit=100 speed limit=100 (or lower if you don't accedentaly want to blow up your controller)
    3. Set throttle mode to: Current
    4. Set designated assist level on pedal assist page to: 0
    5. Set designated assist level on throttle page to: 9

    Edit:
    Accoding to AZguy below it seems to be possible to have multiple levels of thottle by setting current limits on assist 1 - 9 and setting designated
    assist to "by displays command" on throttle page.



    Program and try out. On my BBSHD the PAS is completly ignored now, only throttle can be used.

    Anyone willing to try and confirm?


    Maybe this has been posted before but if so I was unable to find it...




    Last edited by dn9; 04-30-2018, 09:30 AM.
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