Hey Formula Student community!
As we push forward with the digitalization of our 25/26 electric race car, our latest major upgrade is positioned right in front of the driver: the completely redesigned, fully digital Dashboard.
Before, every indicator light was powered by a individual cable that reached as far as the TSAC.
In this season we tried to minimize the size of the wiring harness so the move to a CAN bus powered dashboard was inevitable.
At the heart of this PCB is our standard microcontroller. The cheapest CANFD capable STM32, the STM32C092RC.
The main function of this PCB is to display the fault states of the high voltage accumulator and to let the driver enable the high voltage system via a button press.
To ensure absolute system reliability on the track, the Dashboard constantly transmits a “heartbeat” signal across the CAN network at regular intervals. If a connection loss is detected by the vehicle control unit, an error is instantly thrown, and the car safely comes to a stop.
We can reuse some code and schematics from our previous PCB: The ACU
With this, time from concept to installation is very short and made possible by the fast turnaround time of the Aisler Blitz service.
A big thanks to Aisler for keeping our cockpit connected and helping us streamline our electronics architecture!