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Electric vehicle sound enhancement systems and methods

  • US 10,071,686 B2
  • Filed: 08/24/2016
  • Issued: 09/11/2018
  • Est. Priority Date: 06/30/2016
  • Status: Active Grant
First Claim
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1. An audio system of a vehicle, comprising:

  • an acceleration state module that sets an acceleration state signal to a first state when a longitudinal acceleration of the vehicle is greater than a first predetermined acceleration,wherein the first predetermined acceleration is positive;

    a sound control module that selectively sets audio characteristics for an acceleration event in response to determinations that all of;

    (i) the acceleration state signal is in the first state;

    (ii) an electric motor is outputting positive torque to a powertrain of the vehicle;

    (iii) an accelerator pedal position (APP) is greater than a predetermined APP,wherein the predetermined APP is at least 50 percent of a predetermined maximum APP;

    (iv) a selected gear ratio of a transmission of the vehicle is greater than or equal to a predetermined gear ratio,wherein the predetermined gear ratio is at least a fifth gear ratio of the transmission; and

    an audio driver module that, based on the audio characteristics, applies power to speakers to output sound within a passenger cabin of the vehicle.

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