corbin dunn via EV wrote:
For some reason, this doesn't make sense to me. You are saying that you need a speed sensor on each wheel, or else regen would create instability. You could say the same thing for forward power applied by the motor. I think this would only matter if you had a controller on each wheel -- which, maybe you do...I'm not exactly sure what you are trying to do without way more information.
I think he's basically correct. Think about anti-lock brakes. Each wheel has its own speed sensor, and controls the braking to that particular wheel to keep it from skidding. If you're on ice or other poor-traction conditions, there can be a considerable difference in how much braking force each wheel can handle.
If you're going to use regenerative braking to provide this same feature, your controller needs to know the speed of each wheel. Otherwise, one wheel can be slipping, and you'd lose braking in *both* wheels (probably rather suddenly).
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