A method for collecting information on road (1) surface slipperiness comprises collecting from a data bus (3) of a freight vehicle (2) traveling on the road operational data on the vehicle, using the operational data to determine the slip ratio s of the vehicle's driving wheel (8) and the traction force F applied to the road from the driving wheel, and determining the road surface slipperiness from the slip ratio s, the traction force F and the vehicle mass m. In accordance with the invention, the method comprises predetermining the slip ratio S0 of the driving wheel (8) on a non-slip surface as a function of the normal force N applied to the road (1) from the driving wheel and depending on the vehicle mass m, and of the traction force F; determining the slip ratio S, the normal force N1 and the traction force F1 of the driving wheel (8) during driving; determining the normalized slip ratio s' through comparison of the slip ratio S1 of the driving wheel (8) during driving with the predetermined slip ratio S0 on a non-slip surface, with the same traction force Fi and normal force N1; and determining the road (1) surface slipperiness from the normalized slip ratio s'.
METHOD FOR COLLECTING INFORMATION ON ROAD SURFACE SLIPPERINESS
VERFAHREN ZUR SAMMLUNG VON INFORMATIONEN ÜBER DIE STRASSENGLÄTTE
PROCEDE POUR COLLECTER DES INFORMATIONS CONCERNANT LA GLISSANCE DE SURFACE DE ROUTE
2018-09-19
Patent
Elektronische Ressource
Englisch
IPC: | G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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