Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher Frequencies

An active sound profiling (ASP) control algorithm based on the command FxLMS with an additive feedforward enhancement is suggested to overcome the limited performance to track a pre-defined target sound in a car cabin when an electronic sound generator (ESG) attached to a cowl panel of a car was ado...

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Main Authors: Seokhoon Ryu, Jihea Lim, Young-Sup Lee, Eunsuk Yoo, Chasub Lim
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/9/4486
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author Seokhoon Ryu
Jihea Lim
Young-Sup Lee
Eunsuk Yoo
Chasub Lim
author_facet Seokhoon Ryu
Jihea Lim
Young-Sup Lee
Eunsuk Yoo
Chasub Lim
author_sort Seokhoon Ryu
collection DOAJ
description An active sound profiling (ASP) control algorithm based on the command FxLMS with an additive feedforward enhancement is suggested to overcome the limited performance to track a pre-defined target sound in a car cabin when an electronic sound generator (ESG) attached to a cowl panel of a car was adopted as a secondary actuator. As the uncertainty of the secondary path including the ESG-cowl pair was increased especially at higher frequencies, the tracking performance of a pure ASP algorithm was limited. The feedforward enhancement was added to the pure ASP algorithm to allow a robust tracking performance against a pre-defined target sound to enrich the insufficient engine sound at higher engine orders. After implementing this additive ASP approach in a test car, a real-time control experiment was carried out to demonstrate its tracking performance. A target sound was defined to cancel three engine order noises and to enhance the other three order sounds in the experiment. The experiment results showed that the proposed approach was able to provide an improved robust tracking performance at the engine orders for enhancing sound at higher frequencies compared to the pure ASP algorithm.
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spelling doaj.art-58dfb09f41634101a6ffc7ebbb77eaee2023-11-23T07:49:40ZengMDPI AGApplied Sciences2076-34172022-04-01129448610.3390/app12094486Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher FrequenciesSeokhoon Ryu0Jihea Lim1Young-Sup Lee2Eunsuk Yoo3Chasub Lim4Department of Embedded Systems Engineering, Incheon National University, Incheon 22012, KoreaDepartment of Embedded Systems Engineering, Incheon National University, Incheon 22012, KoreaDepartment of Embedded Systems Engineering, Incheon National University, Incheon 22012, KoreaHyundai Motor Company, Hwaseong 18280, KoreaHyundai Motor Company, Hwaseong 18280, KoreaAn active sound profiling (ASP) control algorithm based on the command FxLMS with an additive feedforward enhancement is suggested to overcome the limited performance to track a pre-defined target sound in a car cabin when an electronic sound generator (ESG) attached to a cowl panel of a car was adopted as a secondary actuator. As the uncertainty of the secondary path including the ESG-cowl pair was increased especially at higher frequencies, the tracking performance of a pure ASP algorithm was limited. The feedforward enhancement was added to the pure ASP algorithm to allow a robust tracking performance against a pre-defined target sound to enrich the insufficient engine sound at higher engine orders. After implementing this additive ASP approach in a test car, a real-time control experiment was carried out to demonstrate its tracking performance. A target sound was defined to cancel three engine order noises and to enhance the other three order sounds in the experiment. The experiment results showed that the proposed approach was able to provide an improved robust tracking performance at the engine orders for enhancing sound at higher frequencies compared to the pure ASP algorithm.https://www.mdpi.com/2076-3417/12/9/4486active sound profilingactive noise cancellationcontrol stabilityfeedforward controlcontrol algorithm
spellingShingle Seokhoon Ryu
Jihea Lim
Young-Sup Lee
Eunsuk Yoo
Chasub Lim
Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher Frequencies
Applied Sciences
active sound profiling
active noise cancellation
control stability
feedforward control
control algorithm
title Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher Frequencies
title_full Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher Frequencies
title_fullStr Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher Frequencies
title_full_unstemmed Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher Frequencies
title_short Enhancing Engine Order Sound Using Additive Feedforward Control for a Secondary Path with Uncertainty at Higher Frequencies
title_sort enhancing engine order sound using additive feedforward control for a secondary path with uncertainty at higher frequencies
topic active sound profiling
active noise cancellation
control stability
feedforward control
control algorithm
url https://www.mdpi.com/2076-3417/12/9/4486
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