Division 4.2.8.1 Calculation of the peak braking force coefficientF1
United Kingdom
The tyre peak braking force coefficient ( μ peak ) is the highest value of μ(t) before lockup occurs calculated as follows for each test run. Analogue signals should be filtered to remove noise. Digitally recorded signals must be filtered using a moving average technique.
where:
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μ(t) is the dynamic tyre braking force coefficient in real time;
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fh(t) is the dynamic braking force in real time, in N;
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fv(t) is the dynamic vertical load in real time, in N.