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Unread 14-02-2009, 23:55
Mentor_Mike Mentor_Mike is offline
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FRC #2809 (K-Botics)
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Re: 2809 - Traction Control Demo

Quote:
Originally Posted by 360skier View Post
The method you're using appears to be the TLS method, in which the speed of the driven wheels is compared with the speed of the undriven wheels. However, since no wheels are idle than there must be another way of sensing your speed. You aren't using an optical sensor or an accelerometer, and ultrasonic sensors would get too much interference from other robots.

My only other idea would be attaching a free-swinging pendulum to the robot. An encoder or Gyro attached to the axel of this device could then be used exactly the same as an accelerometer but without the noise. This does seem like a lot of work though. Does anyone else have a simpler solution to detecting speed?
Dude, that sounds WAY complicated. The trouble we're finding is that with the bumpiness (is that even a word?) of the surface, anytype of sensor like that creates (or created in our case as we stayed FAR away from it) a lot of noise. Never thought of a pendulum though, that would be kinda neat. But again, with the vibration I feel like the dampening system would need to be quite intense.
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