Sharing some data from an incident we had at a race this past weekend. Here’s the data plots and video of the incident.
The standard Long/Lat G don’t show the impact as well as the gps.accx/y/z values, and really curious about what the Gyro X/Y/Z really mean, as the Gyro Z is the most anomalous of the values.
Hi,
First of all, about the incident — hopefully everyone’s okay.
From the GPS to CAN manual:
The Z-axis points downward. The gyro channels show angular velocity, so the spike in Gyro Z is the car rotating around the vertical axis, which fits what happens around 0:28–0:30 in your video.
adu.longG / adu.latG are filtered, so brief impacts get smoothed out.
gps.accX/Y/Z are much closer to raw data, which is why they show the hit much more clearly.
All drivers were OK, cars…. Not so much, only 2 of 5 restarted on Sunday and 1 finished, which was US!!! A third team brought in a spare care entirely, but I don’t count that.
So in this case looking at the Axis, X is lateral, Y is longitudinal, and Z is essentially Yaw.
Is there an 8 G limit on these sensors or was that truly our maximum G loading?
