Technical solutions are described for estimating tire-road friction in a vehicle pro-actively, prior to safety systems of the vehicle are engaged. An example method includes computing a slip for the vehicle based on one or more wheel speeds, acceleration, and tire pressure measurement. The method further includes determining a slope (α) as indicator of tire-road friction for the vehicle based on the acceleration and the slip. Further, the method includes sending the slope to an autonomous controller of the vehicle for adjusting vehicle kinematics according to the estimated friction using the slope.
Method to estimate tire-road friction, prior to safety systems engagement
24.08.2021
Patent
Elektronische Ressource
Englisch
IPC: | 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 |
METHOD TO ESTIMATE TIRE-ROAD FRICTION, PRIOR TO SAFETY SYSTEMS ENGAGEMENT
Europäisches Patentamt | 2019
|Springer Verlag | 2022
|British Library Conference Proceedings | 2005
|Kraftfahrwesen | 2010
|SAE Technical Papers | 2010
|