Method and device for determining the condition of at least one tyre of a vehicle wheel
AssigneePeugeot Citroen Automobiles SA
InventorsDenis Le Bret, Zahir Djama
Life of this patent
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Abstract
The invention concerns a method for diagnosing the condition of at least one tire of a vehicle wheel connected to the body shell thereof via a suspension, including, for the or each tire, a step (102) of acquiring the vertical acceleration of the wheel in a reference model of the vehicle. Said method includes a step (108) of filtering the acquired acceleration to eliminate the frequencies thereof lower than a predetermined filtering frequency, a step (110) of determining a vertical excitation applied to the tire based on the filtered acceleration, and a step (112, 114, 116, 118, 120) of determining the condition of the tire based on the determined excitation.
Claims10
Method of diagnosing the state of at least one tire of a vehicle wheel connected to the body thereof by means of a suspension, of the type comprising, for the or each tire, a step of acquiring the vertical acceleration of the wheel in a referential of the vehicle, said method comprising:
- a step of filtering the acquired acceleration to eliminate the frequencies thereof lower than a predetermined filtering frequency;
- a step of determining a vertical excitation applied to the tire as a function of the filtered acceleration;
- and
- a step of determining the state of the tire as a function of the determined excitation.
Dependencies are inferred from the claim text.