A vehicle tyre to road friction value estimation arrangement (1) is provided comprising a vehicle impact detecting unit (3), a vehicle wheel axle lateral acceleration estimation unit (5.1, 5.2, 5.3, 5.4), and a processing unit (7). The vehicle impact detecting unit (3) is arranged to detect occurrence of an impact. The vehicle wheel axle lateral acceleration estimation unit (5.1, 5.2, 5.3, 5.4) is arranged to, upon a detected occurrence of an impact, estimate or measure a lateral acceleration of at least one vehicle wheel axle (13.1, 13.2) of the host vehicle (9). The processing unit (7) is arranged to determine an occurrence of a shift in direction of the lateral acceleration, and obtain a subsequent peak lateral acceleration estimate and to calculate an estimate of a host vehicle tyre to road friction value based on the thus obtained peak lateral acceleration estimate. The present invention also relates to a post impact vehicle control system (2), a vehicle (9) comprising a post impact vehicle control system (2) and a method (100) of estimating a vehicle tyre to road friction value.
Vehicle tyre to road friction value estimation arrangement
Anordnung zur Schätzung des Reibwerts zwischen Fahrzeugreifen und Straße
Pneu de véhicule à système d'estimation de la valeur de frottement de la route
2018-04-11
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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