SIMULATION DEVICE USING AUDITORY MODEL

WIPO Patent Application WO/2018/225401

A1

A simulation device using a noise-reducible auditory model is realized that takes advantage of a simulation of model-based development and improves sound quality beforehand in design stages of an automobile, etc. An exciting force model 60 is a simulation model for calculating an exciting force, and, if the exciting force model 60 is for the case of electromagnetic exciting force of an electric motor, a current, etc., are inputted to the exciting force model 60 and the electromagnetic exciting force is calculated. A sound-vibration model 7 accepts the output of the exciting force model 60 as input thereto and outputs a sound pressure due to the vibration of the housing or gear case, etc., of the electric motor. An auditory model 8 accepts the sound pressure of the sound-vibration model 7 as input thereto and calculates and outputs an electric signal representing the sensitiveness of humans, the sensual quantity felt by human brains, etc. It is possible to design the exciting force model 60 on the basis of the sensual quantity of humans outputted from the auditory model 8 so that the sensual quantity of humans becomes an appropriate value.

WATANABE MASANORI (JP)
TANABE YOSUKE (JP)
OYAMA KAZUTO (JP)
ASHIDA AKIHIRO (JP)
YOSHIDA TAKESHI (JP)

PCT/JP2018/016238

December 13, 2018

April 20, 2018

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HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

G06F17/50; G10K15/00

JP2012055636A

2012-03-22

TOI, TAKESHI ET AL.: "Noise prediction and sound quality improvement of high-speed rotating components by using acoustic excitation force", THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN , THE ACOUSTICAL SOCIETY OF JAPAN, vol. 56, no. 6, 1 June 2000 (2000-06-01), pages 437 - 444

TODA Yuji (JP)

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