Ono Sokki Co., Ltd.'s technology for analyzing knocking in gasoline engines using deep learning (AI) has received the "Paper Award" at the 72nd Society of Automotive Engineers of Japan Awards, hosted by the Society of Automotive Engineers of Japan.
The Society of Automotive Engineers of Japan Award was established in 1951 with the aim of encouraging the improvement and development of automotive engineering and automotive technology, and is awarded to those who have made significant contributions or achievements in automotive technology.
The "Paper Award" is presented to individuals and co-authors who have published papers that contribute to the development of automotive engineering or automotive technology within the past three years.
Paper Award
Award recipients
A method for estimating knocking noise and in-cylinder pressure from engine radiated noise using deep learning (Parts 1-3)
Award recipients
Taro Kasahara
Hikaru Watabe
Taichi Ikeda
Hiroshi Yoshikoshi
Reason for award
The sound emitted from the surface of an internal combustion engine (hereinafter referred to as "radiated sound") consists of both that caused by mechanical vibrations of the engine's constituent structures during operation and that caused by combustion noise.
In this paper, we demonstrate that knocking noise can be separated from engine noise by measuring engine noise with a microphone and generating a filter that separates mechanical vibration noise from combustion noise from the pectrogram (a two-dimensional map representing the sound pressure intensity at each time frequency) of the radiated sound using a Deep Neural Network.
This technological development makes it possible to detect knocking from radiated sound and evaluate the magnitude of the knocking sound without installing an in-cylinder pressure sensor in the engine combustion chamber.
This technology is highly commendable because it reduces the amount of work required in engine ignition timing compatibility testing, and contributes to improved fuel efficiency and quieter operation.
*Reason for award: Quoted from the Japan Society of Automotive Engineers of Japan (JSAE) website, "JSAE Award for Technical Education Leaflet".
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