Sound generation device for vehicle

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United States of America Patent

PATENT NO 11981259
APP PUB NO 20220297598A1
SERIAL NO

17636173

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Abstract

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A sound generation device for a vehicle, the sound generation device being installed in a vehicle which travels using an electric-powered motor as a power source, includes a sound control apparatus which sets a plurality of frequencies corresponding to a motor rotation speed and generates a synthetic sound signal indicating a synthetic sound including sounds at the plurality of frequencies and a speaker which outputs the synthetic sound based on the synthetic sound signal generated by the sound control apparatus, and the sound control apparatus sets an increase amount of an output of a sound in a low frequency band large compared to an increase amount of an output of a sound in a high frequency band in a frequency range of the synthetic sound in accordance with an increase in a motor torque value.

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Patent Owner(s)

Patent OwnerAddress
MAZDA MOTOR CORPORATIONJAPAN'S HIROSHIMA COUNTY GOVERNMENT IN THE NEW TOWN YUNJUN ANN 3 NO 1

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hattori, Yukifusa Aki-gun, JP 2 0
Mitsunaga, Seisuke Aki-gun, JP 3 17
Nakagami, Chieko Aki-gun, JP 3 1
Shimizu, Katsuya Aki-gun, JP 63 257
Shiraishi, Hidekazu Aki-gun, JP 5 4
Yamada, Ryuichi Aki-gun, JP 9 33

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