Quote:
Originally Posted by Micheal K
... I’m thinking specifically of brake line pressure or maybe a brake pedal position sensor. ...
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Neither of those can directly account for traction at the road surface (actual braking effect); an indirect 'best guess algorithm' would be required to utilize that data meaningfully. An accelerometer on the other hand provides a direct indication of actual real-time braking effect for an easy and accurate feedback response.
OE controllers certainly utilize input from the vehicle's already existing accelerometers, quite likely with other inputs/algorithms relating to stability/traction control systems as suggested by John in Santa Cruz (I've read similar but don't have links handy).
Trailers with wheel-rotation sensors providing feedback to a brake controller capable of activating individual wheel braking would be the ideal dream, allowing full ABS/stability control integration, but we're not there
yet in the RV world.
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