Forum Discussion
Lynnmor
Feb 26, 2018Explorer II
BenK wrote:
And all of those old MC PSI based controllers are no longer on the market...
Like accelerometer based much better over MC PSI sensed
All of the braking system designed in an earlier career used fluid PSI sensors and most all of those sensors leaked over time. First they became flaky...then intermittent...then failure where fluid would leak all over the place. Granted, it was circa 1970's-1980's and maybe the sensor package is better...but they still work the same way
I already explained that the pressure sensed controllers didn't sell because they weren't cheap. People and dealers want cheap and easy.
The old hydraulic units had no sensor, the brake fluid operated a hydraulic cylinder that was connected to a rheostat. I still have one on my 39 year old van, and it hasn't leaked yet.
The pressure sensing controllers from brakesmart and MaxBrake used a transducer, that had no moving parts, to measure the brake fluid pressure. That sensed pressure determines how much current is applied to the electric brakes, which is how the system closely brakes according to the drivers foot pressure.
I still have a Brakesmart just in case it will ever be needed. I actually liked it better than the OEM units because it didn't reduce braking at very slow speeds.
The OEM units factory installed today, use a transducer screwed right into the hydraulic system and they work very well.
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