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On the sound quality of the propulsion system in hybrid vehicles

Grant number: 14/09894-7
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): September 01, 2014
Effective date (End): August 31, 2015
Field of knowledge:Engineering - Mechanical Engineering - Mechanics of Solids
Principal researcher:Leopoldo Pisanelli Rodrigues de Oliveira
Grantee:Jaime Alberto Mosquera Sánchez
Supervisor abroad: Wim Desmet
Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Research place: University of Leuven (KU Leuven), Belgium  
Associated to the scholarship:12/15783-8 - Sound Quality-driven Active Control of Periodic Disturbance for Hybrid Vehicles, BP.DR


New targets of the automotive industry in reducing fuel consumption and environmental impact, while maintaining or even improving vehicle's performance, force the companies to migrate to new propulsion paradigms. The use of lightweight materials for building structural systems in conjunction with hybrid and/or electric propulsion systems may have a negative impact on the perception of the auditory phenomena at the passenger's cavity, as the internal combustion engine disturbance is no longer present, and the materials' low damping lead to the perception of undesired transitory and high-frequency disturbances, which deteriorate the sound quality of the vehicle. This study deals with the development of both numerical and experimental strategies for approaching the perceived sound quality at the passengers' cavity, during the operation of the propulsion system in hybrid/electric vehicles. Electrical-mechanical control systems will be implemented over the power driver signals commanding the electric motor, as their influence over both transient and high-frequency disturbances is widely demonstrated through the specialized literature. The use of synthesized and/or measured signals and systems allows characterizing of the auditory disturbance and the implementation of control schemes at the electric and/or mechanic domains. Calculation of relevant psychoacoustic metrics over the controlled disturbance will lead to validate the proposed theories and techniques in this paper. (AU)

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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