Summary

We ended up needing to trailer today

We made a pit stop in the McDonald's, where we briefly debated whether or not to take the car through the drive-thru. Then we struggled for a bit to get the car started again, where it seemed like Driver Controls was hard-faulting. We ended up fixing this by rebuilding and reflashing Driver Controls with Link-Time-Optimizations disabled.

At dinner, we sat with PrISUm and they offered to help out in whatever way they could, since they were out and had begun coining themselves as "Display Class". It turns out that we were at the same campground that they were staying at, and so they came by afterwards. It's hard to explain an electrical problem and solve it, since there's so many ways things can go wrong and typically that only works when the problem is trivial or there's something obviously wrong, which hopefully we've already resolved.

Anyways, I noticed one of the observers (Spencer Berglund) hanging out by our car, and since he wasn't our observer at the time, I asked him if he knew anything about Motor Controllers. Turns out, that was probably the smartest thing that we did all race. He took a look at our Tritium WaveSculptor 20 configuration, and immediately, he pointed out that the RMS Peak motor current maximum on them was rated for 100A, with a peak current of 122A, but we had set it to 130A. Motor impedance will limit the current at higher speeds, which limits the bus current. He suspected that although we weren't pulling anything near that, flashing a value outside of the valid range of operating values was causing them to fault.