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Question My motion rig seems to soften/slow down mid-race - any ideas?

Discussion in 'Motor actuators and drivers' started by Michael Jeffries, Jan 6, 2020.

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  1. Michael Jeffries

    Michael Jeffries Member Gold Contributor

    Joined:
    Jul 22, 2019
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    My Motion Simulator:
    Motion platform, 4DOF
    I dont know if it's just the telemetry output from iRacing, or something mechanically happening from the AASD15A drivers, but there have been a few times mid race in iRacing where it seems like after I go over a large curb or have somwhat of a larger jolt, the motion seems to soften and slow down a bit.

    Could this be something mechanical happening within the drivers themselves when a certain amount of torque is exceeded and it drops the output lower? Or could this just be how iRacing is sending the telemetry data?

    It's not a significant amount of drop in the power that I'm feeling, so it could just be tire wear and such causing this, but i figured I'd ask in case the drivers are mechanically doing something to lower torque output.

    Is there any way to check this? I was told to set the drivers to monitor dn005 which it says monitors the maximum instantaneous torque, which I'll try to do during my next race, but not sure if the max torque will stay on the drivers by the time I finish the race to see what it comes up with.
    Michael Jeffries, Jan 6, 2020
    #1
  2. RacingMat

    RacingMat Well-Known Member Gold Contributor

    Joined:
    Feb 22, 2013
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    2,234
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    Marseille - FRANCE
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    20,887Coins
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    My Motion Simulator:
    2DOF, DC motor, Arduino
    after a big curb, the power can go to default but it often stops completely in this case.
    it could be warmth that lower the motor's specification (demagnetization)
    or probably an overheating of the driver

    please post some pics of your simrig! Do you have radiator and fan above your driver?
    RacingMat, Jan 6, 2020
    #2