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Configuring the Wireless Wheel Speed Sensors for VBOX 3i

Updated on Mar 13, 2026

Configure the CAN Input #

Use the VBOX Setup software to configure the Wireless Wheel Speed Sensor CAN input on a VBOX 3i data logger. 

  1. Download the RLWSSENSOR 1.dbc file. 
  2. Connect the power supply to the PWR port on VBOX 3i.
  3. Connect VBOX 3i to a Laptop/PC with VBOX Setup installed.
  4.  Connect the Wheel Speed Sensor Link Data Receiver to VBOX 3i (see the Installation page).
  5. Activate the Wheel Speed Sensors with the supplied Magnetic Switch (WSMAGSW).
  6. Start VBOX Setup.
  7. Select the relevant COM port and click Connect.
  8. Open the Channel Config menu.
  9. Select CAN Input from the list of available CAN Signal options on the left.
  10. Click Add channel.
  11. Make sure that the CAN database mode is set to User and click Load.
  12. Navigate to the location with the relevant .dbc file.
  13. Click Open.

    The channels in the file will be listed under the CAN Database options. 
     
  14. Select a channel you want to log from the list and click OK.    
  15. The selected channel will be displayed in the CAN Input section, with live previews when connected and ready.
  16. Repeat steps 10 and 14 for all required CAN Channels. 
VBOX3i_VBSetup_ChannelConfig_CANInput_AddChannel_WSS.gif
  1. Open the CAN menu.
  2. Make sure that the Baud Rate is set to 500 kbit/s and that Termination is enabled on the relevant port on VBOX 3i.
  3. Click Write to unit. 
Apply the Required Scale to RPM #

The Wheel Speed Sensors output rotational speed. You can calculate the required scale factor and add it to the channels in the VBOX Setup CAN Input to convert RPM to vehicle speed. 

Vehicle Speed = Sensor Speed × Scale Factor
 

  1. Stabilise the vehicle at a known speed.
    • Drive the vehicle at a steady, known reference speed (e.g., 40 km/h, 60 km/h, or 50 mph)
    • Maintain this speed for approximately 4 seconds

    Use GPS speed from the VBOX data logger or a validated reference as the true vehicle speed.
  2. Average the reference vehicle speed.
    • Compute the average vehicle speed over the 4-second interval
    • This becomes your true speed value

    Example: Vehicle speed (avg) = 60.0 km/h
  3. Average the sensor output.
    • Compute the average RPM (or raw sensor value) over the same 4-second window

    Example: Sensor speed (avg) = 820 RPM
  4. Calculate the scale factor.
      Scale Factor = Average Sensor Speed / Average Vehicle Speed​  

    Example: Scale Factor = 60.0 / 820 = 0.07317
  5. Enter the scale in for the Wheel Speed Sensor channels in VBOX Setup.
    1. Open VBOX Setup -> Channel Config -> CAN Input.
    2. Select the relevant Wheel Speed Sensor channel from the list of available channels by clicking on the channel name.
    3. Edit the channel scale by entering the following into the applicable settings:

      Scale = calculated value
      Offset = 0 (unless the sensor requires bias correction)
       
    4. Repeat for all required wheel speed sensor channels. 

      Use either: The same scale (if tires and sensors are identical), or individual scales (if there are small tolerances).
  6. Click Write to unit to load the new settings into VBOX 3i.
  7. The live previews for the channels should now all match, and increase and decrease in line with, the vehicle speed.