Calculate brake pedal mechanical ratio from pivot, pushrod, and pad geometry dimensions.
Input Parameters
Results
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Pedal Ratio
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Pushrod Force
lbs
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MC Output Pressure
psi
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Pedal Travel for 1" MC
in
Note: Typical pedal ratios are 4:1 to 7:1. Higher ratios increase force but require more pedal travel. OEM designs target 50-75 lbs max pedal effort.
Reference
Pedal Ratio = Pivot-to-Pad / Pivot-to-Pushrod
Pushrod Force = Foot Force x Pedal Ratio
MC Pressure = Pushrod Force / MC Area
MC Area = pi x (Bore/2)²
Pedal Travel = MC Stroke x Pedal Ratio