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Guide to Hall Sensor Throttle operation, testing, and modification.

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  • Tommycat
    commented on 's reply
    Kind words like yours are what keep me motivated. Much appreciated!
    And Welcome to the forum! :-)

  • tehnoadam
    commented on 's reply
    I had to register to the forum just to say Thank you for such a good and comprehensive guide and explanations. Kudos.

  • Tommycat
    commented on 's reply
    This has been my go-to thread for trying to understand PAS verses torque sensing for ebikes. It does include some typical voltage outputs.

    T.C.
    Last edited by Tommycat; 08-13-2023, 11:00 AM.

  • Tommycat
    commented on 's reply
    Hi akom,
    And welcome to the forum!

    Looks like an awesome project! Thank you for contributing and sharing it. Adding bookmark now. :-)

    Best regards,
    T.C.

  • akom
    replied
    I tried the beatiful schematics listed in https://electricbike.com/forum/forum...0588#post70588 and was not entirely happy with the results. Everything seemed like a compromize, I was either not getting the smoothing or losing top speed.

    I gave up and used an Arduino to smooth my jumpy throttle, remove deadband, and add a knob-adjustable speed limit. If that helps anyone, here is the project:



    Leave a comment:


  • Tommycat
    commented on 's reply
    I'd P.M'd Leon about his interesting project with questions, but as of today he is just a one and done.
    Reminder to just post in the "troubleshooting" section for best results... ;-)..

  • Tommycat
    commented on 's reply
    Hi angelovola80,
    And welcome to the forum! :-)

    As your throttle voltages are good, my gut intuition would be a change in battery voltages or perhaps a damaged throttle cable. I recommend that you re-post this problem issue in the "troubleshooting" section seen here... https://electricbike.com/forum/forum...ouble-shooting
    With full disclosure of your previous battery, and it's replacement. Model, type, voltages, homebuilt? Cell type? ECT... Details and wiring diagrams of your controller, throttle assembly, and other information of your system will be helpful and eliminate guesswork. The more the better!

    See you over there!

    Regards,
    T.C.

  • angelovola80
    replied
    Hello. I have a problem with my bike. Following a total discharge of the lead acid battery (now replaced with a lithium), the accelerator no longer works. I measured the voltages and they are all correct (0.8V-4.3V). The engine runs at maximum if I press the button with the cables of the same throttle sheath (cruis controll?). I have no way of analyzing software controller settings. What may have happened?

    Leave a comment:


  • Leon
    replied
    Hi Thommycat, I have read your very interesting article on the throttle of the bldc engine. I want to make a cable car from an Electric wheelbarrow wheel, BLDC motor. I want to replace the throttle with a 10k potentiometer. the engine should start up slowly. I want to extend your schematic with the transistor capacitor and potentiometer with a 10 k potentiometer. to set the forward speed. I place a switch in the 5 volt line so as not to have to turn the potentiometer to zero all the time. do you think this will work?
    Attached Files

    Leave a comment:


  • AZguy
    commented on 's reply
    Didn't know there was a double post

    Double posts suck

    I'll bow out

  • Tommycat
    commented on 's reply
    Hey fellas, how 'bout keeping everything in one spot... Thanks.
    Hey all!! Thanks for the wonderful information on this site!!! was wondering if you may have a solution or have seen this issue in the past. I have a hall type throttle (LH-100) on a 60v dual motor E-scooter setup. When I release the throttle I have a good 1 second lag where the motors are still getting power before the power

  • jakesontap
    replied
    Hey AZguy!! I was thinking the same thing but I replaced both the controllers and the throttle and it’s still doing the same thing…? Checked the motors halls with a tester and they checked good.

    Leave a comment:


  • AZguy
    commented on 's reply
    If the throttle is working properly the lag would almost certainly be a controller issue

    If the throttle isn't working properly then replace the throttle

    If you have a reasonably fast responding voltmeter you should be able to see whether the throttle is working properly when released - only connect the power wires to the throttle and watch the throttle output with the meter

  • jakesontap
    replied
    Do you think if I add a 50k resistor between the signal and ground wire it will drop the signal voltage faster but keep the current pull low? Just trying to figure out how to remove the throttle lag when releasing throttle.
    thanks!!!!

    Leave a comment:


  • jakesontap
    replied
    Hey Tommycat!! Thanks for the wonderful information!!!
    was wondering if you may have a solution or have seen this issue in the past. I have a hall type throttle (LH-100) on a 60v setup. When I release the throttle I have a good second lag where the motors are still getting power before the power is released and she starts decelerating. I have replaced both the throttle display and the motor controllers but problem is still there. Any thoughts? Thanks!!!!!!

    Also, if I hit the brake right as I release the throttle the power does stop. This is pretty scary when you are going 40+ mph!! Lol
    Last edited by jakesontap; 01-09-2022, 05:28 AM.

    Leave a comment:

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