A modified feedforward hybrid active noise control system for vehicle

Jiang, Yao; Chen, Shuming; Gu, Feihong; Meng, Hao; Cao, Yuntao

doi:10.1016/j.apacoust.2020.107816

Cited by 31 publications

(20 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hybrid control combined feedforward and feedback control. Many researchers have researched and improved on hybrid control to control narrowband and broadband noise in a vehicle [4], [33]- [35]. Among the results related to the hybrid control, a recent study [4] showed that the noise reduction result of 4.67 dB was derived applying the hybrid control when the simulation was performed at a constant speed of 60 km/h.…”

Section: Discussionmentioning

confidence: 99%

“…Many researchers have researched and improved on hybrid control to control narrowband and broadband noise in a vehicle [4], [33]- [35]. Among the results related to the hybrid control, a recent study [4] showed that the noise reduction result of 4.67 dB was derived applying the hybrid control when the simulation was performed at a constant speed of 60 km/h. They presented an improvement of 0.38 dB from the 4.29 dB reduction in only broadband control by applying the method of separating the error signal of the broadband and the narrowband controller.…”

Section: Discussionmentioning

confidence: 99%

“…Active noise control (ANC) in vehicles has been widely researched to resolve low-frequency noise problems. In powertrain noise, the engine firing order and its harmonic order have been considered the main targets to be controlled [1]- [4]. After the first implementation of the ANC system, which used two speakers, four microphones, and a tachometer as a reference sensor for mass production by Japanese motor companies [5], considerable research has been conducted on commercialization, mainly by research groups and companies [6]- [8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Complementary Effect in Active Control of Powertrain and Road Noise in the Vehicle Interior

Kim

Altınsoy

2022

IEEE Access

View full text Add to dashboard Cite

This study shows that a concurrent active noise control strategy for engine harmonics and road noise has a complementary effect. In particular, we found that engine booming noise is additionally attenuated when road noise control is concurrently used with engine harmonics control; an additional attenuation of 2.08 dB and 1.25 dB for the C1.5 and C2.0 orders, respectively, was achieved. A parallel multichannel feedforward controller for non-stationary narrowband engine harmonics and broadband road noise was designed and implemented to reduce noise in all four seats. Two control signals were considered independent because the reference signals, engine revolution speed for the engine harmonic controller, and acceleration signal for the road noise controller are uncorrelated. However, if the reference sensor for the road noise controller is installed along the overlapping transfer path between the engine noise and road noise, the engine noise may also be suppressed by the control signal for the road noise attenuation. Based on transfer path analyses for both engine harmonics and road noise, the optimal positions for the reference sensors were selected. In addition, we identified several overlapping transfer paths between the engine booming noise and road noise. A practical active noise control system combined with a remote microphone technique was implemented for a large six-cylinder sedan using a vehicle audio system to evaluate the noise attenuation performance. The experiments showed that the interior noise from the engine and road excitation was effectively suppressed by the proposed concurrent control strategy.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Complementary Effect in Active Control of Powertrain and Road Noise in the Vehicle Interior

Kim

Altınsoy

2022

IEEE Access

View full text Add to dashboard Cite

show abstract

“…e active noise controller recognized the reference noise frequency and then output the opposite amplitude to achieve the effect of reducing the noise. For different kinds of noise resources and applications, lots of different algorithms and solutions of ANC systems have been studied and applied during the past decades [17,18]. Zeb simulates the improvement of active noise control for the vehicle by the filtered-input recursive least squares (FxRLS) algorithm [18].…”

Section: Introductionmentioning

confidence: 99%

Active Control for Marine Engine Room Noise Using an FXLMS Algorithm

Cao

2022

Scientific Programming

View full text Add to dashboard Cite

The noise in the marine engine room has always been a major cause of disturbance and damage to sailors’ physical and mental health; however, the antinoise countermeasures were being ignored by the industry. To further reduce the noise in the marine engine room, the system structure of active noise control (ANC) and the theoretical basis of the least mean square (LMS) and filtered X least mean square (FXLMS) algorithm are studied. Based on the FXLMS algorithm ANC system, the simulation study of active noise control in the marine engine room of a multigas carrier is carried out. According to the simulation results by the diagrams plotted on the time domain and spectrum, the ANC systems with the FXLMS algorithm can effectively reduce the noise in the marine engine room by about 20 dB, especially for the peak low-frequency range of 20–500 Hz with a large antinoise effect.

show abstract

“…1, right) instead the estimation of the primary noise d ̂(n) is generated by adding the forecast of the control signal at the error microphone ŷ'(n) to the error signal e(n) [16]. Even hybrid configurations can be developed [17]. Feedback algorithms perform satisfactorily with narrowband quasi-steady noises, while Broadband Feedforward algorithms are well suited for broadband transient noises, despite the more complex layout of the system [18].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the potential of the Feedback Fx-LMS Active Noise Control technology for use in industrial generator sets

et al. 2021

View full text Add to dashboard Cite

Active Noise Control (ANC) has been considered a promising technology for the abatement of acoustic noise from the mid-20th century. Feedback and Feedforward ANC algorithms, based on the destructive interference principle applied to acoustic waves, have been developed for different applications, depending on the spectrum of the noise source. Feedback ANC algorithms make use of a single control microphone to measure an error signal which is then employed by an adaptive filter to estimate the noise source and generate an opposite-phase control signal. The Fx-LMS (Filtered-X Least Mean Square) algorithm is mostly adopted to update the filter. Feedback ANC systems have proven to be effective for the abatement of low-frequency quasi-steady noises; however, different challenges must be overcome to realize an effective and durable system for high-temperature application. This paper aims at experimentally assessing the feasibility of a Feedback Fx-LMS ANC system with off-line Secondary Path estimation to be used in mid-size diesel gensets for the reduction of the exhaust noise. Several solutions are proposed, including the mechanical design, the development of the Fx-LMS algorithm in the LabVIEW FPGA programming language, and the key features required to prevent parts from thermal damage and fouling. The developed prototype was implemented on a 50-kW diesel genset and tested in a semi-anechoic chamber. The noise abatement inside the exhaust pipe and at different measurement points around the machine was evaluated and discussed, showing good potential for improving the acoustic comfort of genset users.

show abstract

A modified feedforward hybrid active noise control system for vehicle

Cited by 31 publications

References 26 publications

A Complementary Effect in Active Control of Powertrain and Road Noise in the Vehicle Interior

A Complementary Effect in Active Control of Powertrain and Road Noise in the Vehicle Interior

Active Control for Marine Engine Room Noise Using an FXLMS Algorithm

Experimental investigation on the potential of the Feedback Fx-LMS Active Noise Control technology for use in industrial generator sets

Contact Info

Product

Resources

About