US 12,560,129 B2 · Transport vehicle with heat engine and method for characterizing acoustic emissions of said vehicle

Abstract

A transport vehicle (1) comprising: —a heat engine (8) operable at a number of revolutions varying between a minimum number and a maximum number; —an adjusting device (52) configured to adjust an infeed flow of air-fuel mixture to the heat engine (8); —at least one on-board memory unit (61) in which an acoustic emission map (70) of the transport vehicle (1) is stored, wherein for each data pair comprising a first data item correlated to an operating condition of the adjusting device (52) and a second data item correlated to the number of engine revolutions, the acoustic emission map (70) associates, as a function of the first data item and as a function of the second data item, a third data item correlated to an acoustic emission measurement by at least one acoustic sensor (S1) external to the transport vehicle (1) and arranged at a separation distance from the transport vehicle (1).

Claims15

Dependent claims

A motorcycle comprising:

a heat engine operable at a number of revolutions varying between a minimum number and a maximum number;
an adjusting device configured to adjust an infeed flow of air-fuel mixture to the heat engine;
at least one on-board memory unit in which an acoustic emission map of the motorcycle is stored, wherein for each data pair comprising a first data item correlated to an operating condition of the adjusting device and a second data item correlated to the number of engine revolutions, the acoustic emission map associates, as a function of the first data item and as a function of the second data item, a third data item correlated to an acoustic emission measurement;
wherein each acoustic emission measurement is acquired by at least one stationary acoustic sensor external to the motorcycle when the motorcycle transits at a separation distance from the at least one acoustic sensor at a predetermined number of revolutions of the heat engine and under a predetermined operating condition of the adjusting device.

1 more element

A method for characterizing acoustic emissions produced by a motorcycle comprising a heat engine operable at a number of engine revolutions varying between a minimum number and a maximum number, and an adjusting device configured to adjust an infeed flow of air-fuel mixture to the heat engine, wherein the method comprises the steps of:

a) acquiring, through at least one stationary acoustic sensor external to the motorcycle, an acoustic emission measurement when the motorcycle transits at a separation distance from the at least one acoustic sensor, at a predetermined number of revolutions of the heat engine and under a predetermined operating condition of the adjusting device;
b) storing, for the data pair, a respective third data item correlated to the respective acoustic emission measurement acquired in a memory unit of the motorcycle;
wherein steps a) and b) are repeated for a plurality of first and second data pairs to obtain an acoustic emission map of the motorcycle.

Dependencies are inferred from the claim text.

Transport vehicle with heat engine and method for characterizing acoustic emissions of said vehicle

Life of this patent

Transport vehicle with heat engine and method for characterizing acoustic emissions of said vehicle

Life of this patent

Abstract

Claims15