Vehicle provided with an electric-drive axle and with a sound transmission system to transmit sounds indicative of the operation of said axle

Inventors: Marco Ballatore (Modena, IT); Francesco Carosone (Modena, IT); Tomas Pedraza (Modena, IT); Antonio Palermo (Modena, IT)

Assignee: FERRARI S.P.A.

G07C5/0833 B60K1/02 G10K11/172

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Quick Facts

Patent No.: US 12670753
App. No.: 18/470,497
Granted: Jun 30, 2026
Kind: B2

External Links

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Abstract

A vehicle has at least one axles with wheels operated by at least one electric motor; a sound transmission system transmits a sound indicative of the operation of the axle inside the passenger compartment; said sound transmission system has at least one acoustic conduit provided with an inlet mouth arranged in the area of the axle and/or of the electric motor and with an outlet opening arranged in the area of the passenger compartment.

Claims (21)

1 . A vehicle comprising:

passenger compartment;

at least one axle comprising at least one wheel;

at least one electric motor to operate said at least one wheel;

wherein the vehicle further comprises sound transmission means to transmit sounds indicative of the operation of said at least one axle towards said passenger compartment;

wherein said sound transmission means comprise at least one acoustic conduit having:

at least one inlet mouth arranged at a sound source defined by said at least one axle and/or by said at least one electric motor,

at least one outlet opening arranged at said passenger compartment,

at least one channel to establish a communication between said at least one inlet mouth and said at least one outlet opening;

wherein said at least one electric motor defines said sound source and comprises an outer casing comprising a grid; and

wherein said at least one inlet mouth is arranged at said grid.

2 . The vehicle according to claim 1 , wherein said at least one inlet mouth is arranged in a position facing said grid.

3 . The vehicle according to claim 1 , wherein said at least one inlet mouth is coupled to said outer casing.

4 . The vehicle according to claim 1 , wherein said at least one acoustic conduit further comprises a resonance box arranged between said at least one inlet mouth and said at least one outlet opening.

5 . The vehicle according to claim 4 , wherein said resonance box is arranged at said at least one inlet mouth.

6 . The vehicle according to claim 4 , wherein said resonance box has a variable inner volume; said sound transmission means comprising a first actuator, which can be controlled so as adjust said inner volume.

7 . The vehicle according to claim 1 , wherein said at least one channel has a variable volume; said sound transmission means comprising a second actuator, which can be controlled so as adjust said volume.

8 . The vehicle according to claim 7 , wherein said at least one channel has a variable length in response to the action of said second actuator.

9 . The vehicle according to claim 1 , wherein said sound transmission means comprises at least one valve, which can be controlled so as to open/close said at least one acoustic conduit and/or so as to adjust a passage cross section area of said at least one acoustic conduit.

10 . The vehicle according to claim 1 , wherein said at least one outlet opening is defined by an element with a flared shape, diverging towards said passenger compartment.

11 . The vehicle according to claim 1 , wherein said at least one channel has an end inlet defined by an element with a flared shape, diverging towards said sound source.