Abstract: A method for controlling an environmentally-friendly vehicle operating sound generator apparatus. The method includes a step of providing an environmentally-friendly vehicle operating sound generator apparatus. The method further includes a diagnosis confirmation step of allowing the control unit to confirm a connection state of the sound output unit and an operation state of the sound source playback unit and compare an output of the sound source amplification unit with a preset reference value to diagnose the presence of distortion. The method further includes an operating sound execution step of allowing the control unit to determine whether or not to generate an operating sound of the environmentally-friendly vehicle according to the vehicle operation state sensed by the vehicle state sensing unit, output at least one sound source, selected from among the sound sources stored in the sound source storage unit, as the operating sound through the sound output unit.

Abstract: A method for controlling an environmentally-friendly vehicle operating sound generator apparatus. The method includes a step of providing an environmentally-friendly vehicle operating sound generator apparatus. The method further includes a diagnosis confirmation step of allowing the control unit to confirm a connection state of the sound output unit and an operation state of the sound source playback unit and compare an output of the sound source amplification unit with a preset reference value to diagnose the presence of distortion. The method further includes an operating sound execution step of allowing the control unit to determine whether or not to generate an operating sound of the environmentally-friendly vehicle according to the vehicle operation state sensed by the vehicle state sensing unit, output at least one sound source, selected from among the sound sources stored in the sound source storage unit, as the operating sound through the sound output unit.