Braking force calculation
Braking force calculation
(OP)
How do I convert an engineering callout of "must having braking force of 0.6g with pedal force of no more than 80 lbs" into a measurable force (ideally in newtons) that I can use to measure on a chassis dynameter (aka rolling road) in a production environment? We normally just check braking force go/no go; however, we are looking to check a brake bias between front and back and want to get a more meaningful number from the engineering callout.
I have the vehicle weight + CG, rolling road roller diameter, and am working on getting the coefficient of friction for both the tire and rolling road roller surface.
I have the vehicle weight + CG, rolling road roller diameter, and am working on getting the coefficient of friction for both the tire and rolling road roller surface.





RE: Braking force calculation
Actually, it's not a bad little problem to throw into a spreadsheet.
Norm
RE: Braking force calculation
.6 g of acceleration will result from a force equivalent to 60% of the vehicle's mass.
RE: Braking force calculation
RE: Braking force calculation
The only major variable that the dyno test won't account for is weight transfer- when you apply the brakes on the dyno, you will get no (or at least much less than in real-world conditions) weight transfer between the front and rear axles.