torque ripple
8 years 2 months ago #29527735
by mrienks
torque ripple was created by mrienks
Hello,
my Roboteq SDC2150SN motor controller shows a torque spike every 50 millisecond when I provide a constant motor command signal. I can\'t find out where this torque ripple comes from. When I use a power supply instead of the Roboteq controller the ripple does not appear. Does anyone have an idea what could cause a ripple like this?
Please find attached a pdf-file that contains plots of the torque ripple, using 2 load sensors measuring the vertical load of the electric scooter wheels.
Thank you very much in advance.
my Roboteq SDC2150SN motor controller shows a torque spike every 50 millisecond when I provide a constant motor command signal. I can\'t find out where this torque ripple comes from. When I use a power supply instead of the Roboteq controller the ripple does not appear. Does anyone have an idea what could cause a ripple like this?
Please find attached a pdf-file that contains plots of the torque ripple, using 2 load sensors measuring the vertical load of the electric scooter wheels.
Thank you very much in advance.
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- roboteq
8 years 2 months ago #29527737
by roboteq
Replied by roboteq on topic Re:torque ripple
There is nothing in the controller with 50ms periodicity.
Is the controller operating in open loop?
Capture a log of motor command, motor command, battery volts, battery amps.
To get max details in the log, disable flags/fault/din/dout/anain/pulsein from monitorin in the run tab.
Send the log to support at roboteq.com
Is the controller operating in open loop?
Capture a log of motor command, motor command, battery volts, battery amps.
To get max details in the log, disable flags/fault/din/dout/anain/pulsein from monitorin in the run tab.
Send the log to support at roboteq.com
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