L 60/50
1.2.6.
EN
Official Journal of the European Union
24.2.2023
In the case of a vehicle equipped with an anti-lock system of category 3, the value of zAL will be measured on each axle which has at least one directly controlled wheel.
For example, for a two-axle rear-wheel drive vehicle with an anti-lock system acting only on the rear axle (2), the adhesion utilized (ε) is given by:
ε2 ¼
zAL · P · g Ä 0,010F 1 k2 ðF2 Ä hE · zAL · P · gÞ
This calculation shall be made for each axle having at least one directly controlled wheel.
1.3.
If ε > 1,00, the measurements of coefficients of adhesion shall be repeated.
A tolerance of 10 per cent is accepted.