Aashmika Mali; Hardware + MSXII; Catherine

Owned by Catherine Burns
Jul 20, 2021
2 min read

Telemetry Use Case

  • Firmware is in charge of making sure that the communications are happening (going through the CAN network)

  • During the race, useful in determining that the car is functional

 

Hardware usages

  • Hardware WILL be using the telemetry dashboard - primary users of the dashboard

 

Card sorting notes

  • All of the faults could be presented as an alert badge - separate them into their own category

  • Power-on sequence success - alert

  • Auxiliary

    • Aux success comes from turning on main and then aux would as well

  • Important to constantly monitor the aux and DCDC main battery supply

    • Adding this to power select status

  • Jumpstart cell on power select - which they will hopefully be getting rid of

  • Drive output from centre console - RACE/NEUTRAL SWITCH

    • Center console is the board that changes all the drive states (other buttons as well)

    • Guessing that the change in states is done through this?

    • A switch telling us to turn off non-essential power consuming devices (e.g. infotainment)

  • Says that rear current measurement (battery) does not make sense

  • Keep speed and the currently set cruise control speed target beside each other

  • SUPPLEMENTAL PACK VOLTAGE - sensing the current

  • Left right motor status is important for indicating that there are no faults in the motors

  • Faults are what they need to check for when scrutineering. Know about the fault explicitly (will completely stop the car)

 

Card sorting part 2

  • Driving information

    • State of the car dynamically

  • Faults

    • All the important faults

  • Power data

    • Reading the currents and measurements, voltages, temperature

    • Solar data, motor controller information, current

    • Measurements taken that aren’t through the battery but will impact the performance of specific systems within the car

  • Main battery

    • Battery temperatures, voltages, fan states, etc.

    • Biggest safety concern so this is important

  • Important statuses

    • Good to keep an eye on but not critical

  • Driver Control Statuses

    • Nice to know, does not really represent the current state of the car

 

Looking at the MSXII

  • Being able to pinpoint the battery packs on the graphs would be helpful

  • For the solar data, they mainly care abt the outliers (things that are less efficient, etc.)

  • For graphs, make sure the directionality is very clear in terms of input or output voltage

  • Range of the vehicle is an onboard calculation 

    • Range based on the state of charge of the vehicle

    • Maybe include this feature

    • Will be shown on driver display but will be nice to have on telemetry