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Unread 22-01-2009, 14:49
windell747 windell747 is offline
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Re: How are you implementing traction control?

We are planning to use an encoder wheel (omniwheel) with encoders attached to the gearboxes. Then the rotation of the shafts on the gearbox will be compared to the encoder wheel rotation. If they aren't moving at the same speed then we know that we are slipping.

Another thing to think about though is that once you loose traction, the bot will need to slow the motors down past where it started to slip to regain traction. Its sort of a hysteresis effect because of the differences in the statics and kinetic coefficients of friction.