To provide a vehicle sound generation device that outputs a sound that allows a driver to perform an accurate accelerator operation in a travel situation in which a vehicle slowly accelerates and decelerates.SOLUTION: A vehicle sound generation device 1 includes: a sound control unit 12 that sets a plurality of frequencies corresponding to the number of rotations of a motor and sound pressure applied to each of the frequencies, and generates a sound signal representing a synthetic sound including sounds of the plurality of frequencies to which the set sound pressure is applied; a speaker 20 that outputs a sound corresponding to the sound signal generated by the sound control unit 12; and a travel situation estimation unit 13 that estimates a travel situation in which a driver slowly accelerates and decelerates a vehicle. The sound control unit 12 generates a sound signal representing only a single tone belonging to a frequency range of 400-900 Hz among the sounds of the plurality of frequencies when this travel situation is estimated.SELECTED DRAWING: Figure 2
【課題】車両が緩やかに加減速する走行状況においてドライバが正確なアクセル操作を行えるような音を出力する車両用音生成装置を提供する。【解決手段】車両用音生成装置1は、モータ回転数に応じた複数の周波数と、この複数の周波数のそれぞれに適用する音圧とを設定し、この設定された音圧がそれぞれ適用された複数の周波数の音を含む合成音を表す音信号を生成する音制御部12と、音制御部12が生成した音信号に応じた音を出力するスピーカ20と、ドライバが車両を緩やかに加減速させるような走行状況を推定する走行状況推定部13を有する。音制御部12は、この走行状況が推定された場合には、複数の周波数の音のうちで周波数が400〜900Hzの範囲に属する単一の音のみを表す音信号を生成する。【選択図】図2
VEHICLE SOUND GENERATION DEVICE
車両用音生成装置
2021-08-05
Patent
Electronic Resource
Japanese
SOUND GENERATION DEVICE, SOUND GENERATION DEVICE-MOUNTED VEHICLE, AND SOUND GENERATION METHOD
European Patent Office | 2022
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