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Artificial engine sound control unit, approaching vehicle audible system, and electric vehicle having them

  • US 8,712,615 B2
  • Filed: 12/28/2010
  • Issued: 04/29/2014
  • Est. Priority Date: 05/26/2010
  • Status: Active Grant
First Claim
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1. An artificial engine sound control unit which controls an artificial engine sound which is emitted from a sounding body, which is provided at an electric vehicle whose at least a part of drive power is generated by an electric motor, to outside, comprising:

  • a speed region determination part which determines a speed region of the electric vehicle; and

    an artificial engine sound generating part comprises a volume modification processing part which controls the volume of the artificial engine sound, whereinwhen the speed region determination part determines such that the electric motor of the electric vehicle can be energized and the electric vehicle is stopped, the artificial engine sound generating part controls so as for the sounding body to emit the artificial engine sound, and whereinthe artificial engine sound generating part is configured to detect that the electric vehicle is in a state that is immediately prior to a start running mode, and based on the detection that the electric vehicle is in a state that is immediately prior to the start running mode, the volume modification processing part changes a volume of the artificial engine sound which is emitted from the sounding body in the stop state of the electric vehicle.

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