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RACELOGIC Support Centre

IMU

  • You can access the menu by pressing the OK button.
  • Use the Up and Down arrows to navigate through the menu and press the OK button to enter a submenu or change a setting.
  • When editing a setting, the Up and Down buttons will let you scroll through the available options for that setting and the OK button will confirm your selection.
  • Use the Back button to exit a setting. 
This menu can be used to configure the internal IMU settings. IMU highlighted.png
Wheel Speed Input

This setting enables or disables Kalman Filter Wheel Speed Input.

If the unit cannot detect CAN data, you will see a status message on the front panel.

Note: If you need to configure the wheel speed signal format, you can do this in VBOX Setup software

This action will add the Wheel Speeds channel to CAN ID 31D. 

VBOX Omega IMU  - Wheel Speed Enabled.png

Ant to Wheel Offset

This setting specifies the X, Y, and Z distances between the antenna and the wheel speed reference point. 

The reference point is the centre point between the rear wheels.

You can find more information here.

Note: This option is only presented when Wheel Speed Input is Enabled.

VBOX 3iSDR IMU_Ant to Wheel Offset (Framed).png

Ant to IMU Offset

Provides the X, Y, and Z offset values from the antenna to VBOX Omega that is required for the Kalman Filter algorithm.

VBOX 3iSDR IMU_Ant to IMU Offset (Framed).png

IMU to Ref. Offset

This is where you can add the X, Y, and Z offset values from the IMU to the nominated reference point where all measurements will be made. 

 

VBOX 3iSDR IMU_IMU to Ref Offset (Framed).png
Orientation - Side facing down

Select the orientation of the side of VBOX Omega facing down. This is only applied once the IMU menu is exited to the Main Menu. When the orientation is changed, the Kalman Filter is reset.

Note: If you use an invalid combination of sides facing down/forward, you will see an error message when you exit the IMU menu. 

VBOX 3iSDR IMU_Side Facing Down_F_Selected (Framed).png

Orientation - Side facing forward

Select the orientation of the side of VBOX Omega facing forward. This is only applied once the IMU menu is exited to the Main Menu. When the orientation is changed, the Kalman Filter is reset.

Note: If you use an invalid combination of sides facing down/forward, you will see an error message when you exit the IMU menu. 

VBOX 3iSDR IMU_Side Facing Forwrd_A_Selected (Framed).png

Pitch/Roll Offset

Auto Level - Begins the process of levelling the IMU calculated Pitch and Roll Angles. Once selected, the unit averages the pitch/roll angles over a 5-second period and will then subtract/add the averaged values to make the pitch/roll angle 0. This offset will be displayed on the main screen.

Clear - Clears the current pitch/roll offset values.

Note: The Kalman filter must be initialised for this function to be completed and offsets are reset to 0 at each power cycle.

VBOX 3iSDR IMU_Pitch&Roll Offset (Framed).png

Gyro Offset

Auto Level - Begins the process of levelling the IMU calculated Pitch, Roll and Yaw Rates. Once selected, the unit averages the rates over a 5-second period and will then subtract/add the averaged values to make the rates equal to 0. These offsets will be displayed on the main screen.

Clear - Clears the current offset values.

 

VBOX 3iSDR IMU_Gyro Offset (Framed).png

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