ZED-F9R Calibration for Karting

Sensors IMU & Motion
1

Dear SparkFun Community,

I am integrating the ZED-F9R into a kart for lap timing and positioning. I would like guidance on calibrating the IMU fusion for this environment, where lateral g-forces reach 1.5–3g, engine vibration is significant and as you know the kart does not contain suspension. Specifically:

  1. Mounting & orientation: What axis alignment is recommended, and should UBX-CFG-ESFALG be configured manually?
  2. Calibration drive: What maneuvers and minimum duration are needed to fully initialize the IMU on a kart?
  3. High-g & vibration: Are there settings to tune for high lateral loads and engine vibration on a chassis with no suspension?
  4. Model: Should I use automotive dynamic model or another one?

Any relevant application notes or example UBX configuration scripts would be greatly appreciated. There is no problem in calibration for a car but for karting it looks complicated. Thank you for your help.

2

Hi @Ketrin ,

I suggest asking your question on the u-blox support portal. The users there may have more experience with using the ZED-F9R on a kart.

Best wishes,
Paul