Method and device for estimating the speed of a vehicle
AssigneeITT Italia S.r.l.
InventorsPietro Macchi, Stefano Serra, Umberto Vignolo
Life of this patent
Estimating the term…
Abstract
The method for estimating the speed of a wheeled vehicle provided with at least one brake comprising at least one braking element and a braked element, in which the braking element includes at least one force sensor, comprises the steps of: acquisition of a force signal (F, F′) generated by the at least one force sensor; analysis of the force signal (F, F′) in the time or frequency domain and calculation of at least one parameter of the force signal (F, F′); and calculation of a vehicle speed estimate (vest) in which the calculated value of the parameter is inputted into an estimate algorithm (Ap) for estimating the speed of the vehicle.
Claims14
A method for estimating a speed of a wheeled vehicle provided with at least one brake comprising at least one braking element and a braked element, in which the at least one braking element includes at least one force sensor, the method comprising:
- acquisition of a force signal generated by the at least one force sensor;
- analysis of the force signal in a time or frequency domain and calculation of at least one parameter of the force signal;
- and
- calculation of a vehicle speed estimate in which the calculated value of the at least one parameter is inputted into an estimate algorithm for estimating the speed of the vehicle.
A device for estimating a speed of a vehicle provided with at least one brake comprising a braked element, and at least one braking element provided with at least one force sensor;
- the device comprising:
- means for monitoring an activated/deactivated status of the at least one brake;
- and
- an electronic controller of the at least one brake connected to the at least one force sensor;
- wherein the electronic controller of the at least one brake has at least one sliding memory buffer and a calculation algorithm of a vehicle speed estimate and is configured to perform the following operations:
- acquisition on the sliding memory buffer of a force signal generated by the at least one force sensor during an activated or deactivated status of the at least one brake;
- analysis of the force signal in a time or frequency domain and calculation of at least one parameter of the force signal;
- and
- calculation of the vehicle speed estimate in which the calculated value of the at least one parameter is inputted into the estimate algorithm.
Dependencies are inferred from the claim text.