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Unread 04-01-2009, 01:23
Akash Rastogi Akash Rastogi is offline
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Re: 2 Motors is Faster?!

High speed and low torque is the way to go. Try using some encoders in a special way as to create your own ABS. Might just work out better than you plan. Try it out.
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Unread 04-01-2009, 01:28
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Re: 2 Motors is Faster?!

I think it wouldn't be too difficult to figure out if the robot is slipping. If you have encoders and an accelerometer you could compare the measured acceleration to the expected acceleraion at the measured output speed. If the measured acceleration is significantly less than what is expected, you would simply reduce the power to the motors. Does this sound like a good system (I haven't messed with any of the sensors in the kit, but this is what I assume would be the simplest solution).
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Unread 06-01-2009, 19:10
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Re: 2 Motors is Faster?!

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Originally Posted by GUI View Post
I think it wouldn't be too difficult to figure out if the robot is slipping. If you have encoders and an accelerometer you could compare the measured acceleration to the expected acceleraion at the measured output speed. If the measured acceleration is significantly less than what is expected, you would simply reduce the power to the motors. Does this sound like a good system (I haven't messed with any of the sensors in the kit, but this is what I assume would be the simplest solution).
sounds right on to me.
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Unread 06-01-2009, 17:36
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Re: 2 Motors is Faster?!

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Originally Posted by Akash Rastogi View Post
High speed and low torque is the way to go. Try using some encoders in a special way as to create your own ABS. Might just work out better than you plan. Try it out.
Why would you use an automatic traction system when there isnt any traction in the first place?
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Unread 06-01-2009, 17:41
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Re: 2 Motors is Faster?!

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Originally Posted by Uberbots View Post
Why would you use an automatic traction system when there isnt any traction in the first place?
if you can keep your wheels from slipping, that is a significant advantage. I've heard .06 and .05 for static, .05 and .04 for dynamic. Either way, you lose about 20% of your traction once you start slipping.
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Unread 06-01-2009, 19:14
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Re: 2 Motors is Faster?!

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Originally Posted by AdamHeard View Post
if you can keep your wheels from slipping, that is a significant advantage. I've heard .06 and .05 for static, .05 and .04 for dynamic. Either way, you lose about 20% of your traction once you start slipping.
The effects are enormous. Try it out and see.

A bot moving very slowly pushes much harder than one with spinning wheels.
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