Test
Test that the BMS is protecting the system

Closely monitor the pack during its first charge cycle, to make sure the pack gets fully charged, and it is not overcharged.

Procedure:

  1. Connect the BMS master to a PC computer with a USB cable
  2. Plug the EV into the AC power, and start charging the pack from the charger
  3. Run the Lithiumate Lite application
  4. On the Lithiumate Lite application, select the "Status" tab
  5. Monitor the range of cell voltages, noting that the max never exceeds the Vcell-max setting
  6. Monitor the current, checking its value is correct
  7. Note that the charger shuts off and the current goes to 0 when the voltage of the most charged cell reaches the Vcell-max setting

Closely monitor the pack during its first discharge cycle, to make sure the pack is not over-discharged.

This test takes 2 people: a driver and someone else with a laptop computer monitoring the BMS.

Procedure:

  1. Connect the BMS master to a PC computer with a USB cable
  2. Turn on the ignition and start driving
  3. Run the Lithiumate Lite application
  4. On the Lithiumate Lite application, select the "Status" tab.
  5. Check that current is flowing and that the reported value makes sense
  6. Note that the SOC drops gradually down from 100 % as the battery is depleted
  7. Note that the available torque is reduced whenever a cell is below the Vcell-min setting
  8. Note that the current goes off when the minimum cell voltage reaches the Vcell-min setting (and comes back on should that voltage go back up above the Vcell-low setting)

Congratulations: your BMS has been successfully deployed.

 

First charge Test drive Completion
 
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Page published on: Jul 19 2013.      User manual