Breaking/Coasting and Jaguar and Talons.

[mgerber]

Originally Posted by Ether

Would you please explain what you mean by this?

According to the experiment performed by Team 2928, Jaguar top speed and Jaguar reverse speed are identical. Talon top speed and Talon revese speed are not. In addition, the Talon motor profile shows much more noise towards relative minimum and maximum points than the Jag does.
I assumed that more percise speed control would make for better driving, especially while turning. Did I miss something in making this assumption?

[Ether]

Originally Posted by mgerber

According to the experiment performed by Team 2928...

Those tests are interesting, but they were run with essentially no load (except windage and vibration) so they really can't be used as a motor control metric for loaded applications.

Also, most of the things you noted are likely just due to sensor noise and decoding. If you look at the Victor graph, you can clearly see the quantization in the sensor readings.

Look at the time and RPM scale on the graphs and you can get a ballpark idea of the amplitude and frequency of the noise. Compare that to the physical system under test.

Under load, Talons and Jaguars are both quite linear.

[mgerber]

Originally Posted by Ether

Those tests are interesting, but they were run with essentially no load (except windage and vibration) so they really can't be used as a motor control metric for loaded applications.

Also, most of the things you noted are likely just due to sensor noise and decoding. If you look at the Victor graph, you can clearly see the quantization in the sensor readings.

Thanks for pointing that out, I hadn't knoticed that before. I'll be sure to make sure I know what I'm talking about next time I go around dispencing advice.