Nexen uses AI and big data to reduce tyre noise
Due to increasing legislative regulation relating to noise and the demands of electric vehicles, Nexen set up an anechoic chamber containing dozens of microphone sensors to measure noise, analyse pass-by noise (PBN) and detect causes of noise from vehicle powertrain (Photo: Nexen)
Nexen Tire has shared details of how it has used Artificial Intelligence (AI) and big data-driven methodology to help reduce tyre noise. The big data research for Noise, Vibration, and Harshness (NVH) was jointly conducted with Hyundai-Kia Automotive Group and Inha University in Korea. The results of the braking test performance on snow, hydroplaning, and wet surfaces showed internal and external noise generated by cars can be reduced by 1 dB (decibel) and 3 dB (decibel), respectively.
According to the company, Nexen has conducted the joint research since 2018 in order to “increase customer satisfaction and improve the environment by reducing noise levels”. In addition, the research is expected to help reduce research and development (R&D) time period and costs.
AI technology and big data are becoming an integral part of the Fourth Industrial Revolution, the future of mobility, and the fast-changing automotive industry. Researchers from Nexen’s central R&D centre, The Nexen University, report that group were able to make use of “vast amounts of data as well as deep learning algorithms based on tyre patterns and noise design factors” to specifically reduce the pass-by noise of vehicles and tyres. Based on these results, Nexen was able to create new tyre designs by using its own image processing technology.
In addition, due to increasing legislative regulation relating to noise and the demands of electric vehicles, Nexen set up an anechoic chamber containing dozens of microphone sensors to measure noise, analyse pass-by noise (PBN) and detect causes of noise from vehicle powertrain. Furthermore, Nexen created Korea’s first four-drum research equipment facility and is currently conducting tests with real vehicles.
Now, Nexen and Hyundai-Kia are hoping to see possible ways to utilize the technology on the upcoming models of its vehicles. Nexen says it is also looking to incorporate and expand its technology elsewhere in the OE business to “worldwide car manufacturers”.
Specifically, Nexen representatives report that they will “continue to invest in research and development and other forms of joint research such as enhancing NVH performance of autonomous vehicles by using advanced technologies like AI and big data in readiness for the Fourth Industrial Revolution.”
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