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Sound Quality-driven Active Control of Periodic Disturbance for Hybrid Vehicles

Grant number: 12/15783-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): November 01, 2012
Effective date (End): February 28, 2017
Field of knowledge:Engineering - Mechanical Engineering - Mechanics of Solids
Principal researcher:Leopoldo Pisanelli Rodrigues de Oliveira
Grantee:Jaime Alberto Mosquera Sánchez
Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:10/02198-4 - Active sound quality control, AP.JP
Associated scholarship(s):14/09894-7 - On the sound quality of the propulsion system in hybrid vehicles, BE.EP.DR


This PhD project aims to develop active noise and sound quality control systems for hybrid and electric cars. This new paradigm in powertrains for vehicles, poses new challenges for designing and analyzing noise and vibration. Novel acoustic emissions perceived at the passenger's cavity are due to new devices required by these kind of vehicles, e. g. frequency inverters and range extenders, as well as the specific conditions of the electric and/or internal combustion engine harmonic disturbance. Active control techniques are devised as a solution for these new challenges, intended to transform the perceived acoustic field and thus improving sound quality for the disturb. It is expected that, as a result of the control systems to be proposed during the PhD project, new developments in active control be obtained from the concept of changing the amplitudes and/or the relative phases among harmonic components of the acoustic stimuli. Recent research has demonstrated that by controlling loudness, roughness, tonality and acoustic sensory pleasantness, sound quality of a disturbance can be notably modified. To this end, activities such as design, simulation and implementation of control systems based on active structural acoustic auralization of harmonic disturbances produced by electric/hybrid engines are proposed in order to change their time-frequency structure, in order to reach sound quality targets.

News published in Agência FAPESP Newsletter about the scholarship:
Estudos apoiados pela FAPESP ganham Prêmio Tese Destaque USP  

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MOSQUERA-SANCHEZ, J. A.; SARRAZIN, M.; JANSSENS, K.; DE OLIVEIRA, L. P. R.; DESMET, W. Multiple target sound quality balance for hybrid electric powertrain noise. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, v. 99, p. 478-503, JAN 15 2018. Web of Science Citations: 5.
MOSQUERA-SANCHEZ, JAIME A.; DESMET, WIM; DE OLIVEIRA, LEOPOLDO P. R. Multichannel feedforward control schemes with coupling compensation for active sound profiling. Journal of Sound and Vibration, v. 396, p. 1-29, MAY 26 2017. Web of Science Citations: 5.
MOSQUERA-SANCHEZ, JAIME A.; DESMET, WIM; DE OLIVEIRA, LEOPOLDO P. R. A multichannel amplitude and relative-phase controller for active sound quality control. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, v. 88, p. 145-165, MAY 1 2017. Web of Science Citations: 8.

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