Method and system for signaling an aquaplaning condition of a tyre fitted on a vehicle

摘要

A method of signalling an aquaplaning condition of a tire, the latter rolling on a rolling surface, a footprint area being defined between the tire and the rolling surface, a layer of water being interposed between the tire and the rolling surface, includes: detecting a first signal representative of a deformation of the tire due to rolling of the tire on the rolling surface, the first signal including at least one portion representative of the interaction between the tire and the layer of water; processing the first signal so as to determine a parameter representative of an aquaplaning condition of the tire as a function of the first signal; and generating a notification signal as a function of the at least one parameter. A system for signalling an aquaplaning condition of a tire.

主权项

1. A system capable of signalling an aquaplaning condition of a tyre, the tyre rolling on a rolling surface, a footprint area being defined between said tyre and said rolling surface, a layer of water being interposed between said tyre and said rolling surface, the system comprising:
a detection device for detecting a first signal representative of a deformation of said tyre due to rolling of said tyre on said rolling surface, said first signal comprising at least one portion representative of an interaction between the tyre and said layer of water; and at least one processing unit operatively associated with said detection device and capable of being adapted to process said first signal so as to determine at least one parameter representative of an aquaplaning condition of said tyre, wherein said at least one processing unit is adapted to identity said at least one portion of the first signal, said at least one portion being representative of a deformation of an inner surface of the tyre in a region that is external to said footprint area and substantially contiguous to said footprint area; wherein said at least one processing unit comprises a first filtering module for filtering said at least one portion of the first signal in a first frequency band included between 700 Hz and 2000 Hz; said at least one processing unit capable of being further adapted to generate a notification signal as a function of said at least one parameter; and wherein said at least one processing unit comprises a first computing module for determining said at least one parameter as a function of amplitudes of a plurality of samples within said at least one portion of the first signal filtered in the first frequency band, the plurality of samples being obtained through a sampling of the first signal.