Multiple target sound quality balance for hybrid electric powertrain noise

Autor(es)

Mosquera-Sanchez, J. A. ^{[1, 2]} ; Sarrazin, M. ^[3] ; Janssens, K. ^[3] ; de Oliveira, L. P. R. ^[2] ; Desmet, W. ^{[1, 4]}

Afiliação do(s) autor(es)

^[1] Katholieke Univ Leuven, PMA Div, Dept Mech Engn, Celestijnenlaan 300, B-3001 Heverlee - Belgium

^[2] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Mech Engn, Av Trabalhador Sancarlense 400, BR-13566590 Sao Carlos, SP - Brazil

^[3] Siemens Ind Software NV, Interleuvenlaan 68, B-3001 Leuven - Belgium

^[4] Flanders Make, Lommel - Belgium

• Tipo de documento: Artigo Científico
• Fonte: MECHANICAL SYSTEMS AND SIGNAL PROCESSING; v. 99, p. 478-503, JAN 15 2018.
• Citações Web of Science: 5

Resumo

The integration of the electric motor to the powertrain in hybrid electric vehicles (HEVs) presents acoustic stimuli that elicit new perceptions. The large number of spectral components, as well as the wider bandwidth of this sort of noises, pose new challenges to current noise, vibration and harshness (NVH) approaches. This paper presents a framework for enhancing the sound quality (SQ) of the hybrid electric powertrain noise perceived inside the passenger compartment. Compared with current active sound quality control (ASQC) schemes, where the SQ improvement is just an effect of the control actions, the proposed technique features an optimization stage, which enables the NVH specialist to actively implement the amplitude balance of the tones that better fits into the auditory expectations. Since Loudness, Roughness, Sharpness and Tonality are the most relevant SQ metrics for interior HEV noise, they are used as performance metrics in the concurrent optimization analysis, which, eventually, drives the control design method. Thus, multichannel active sound profiling systems that feature cross-channel compensation schemes are guided by the multi-objective optimization stage, by means of optimal sets of amplitude gain factors that can be implemented at each single sensor location, while minimizing cross-channel effects that can either degrade the original SQ condition, or even hinder the implementation of independent SQ targets. The proposed framework is verified experimentally, with realistic stationary hybrid electric powertrain noise, showing SQ enhancement for multiple locations within a scaled vehicle mock-up. The results show total success rates in excess of 90%, which indicate that the proposed method is promising, not only for the improvement of the SQ of HEV noise, but also for a variety of periodic disturbances with similar features. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 14/09894-7 - Um estudo da qualidade sonora do sistema de propulsão dos veículos híbridos
• Beneficiário: Jaime Alberto Mosquera Sánchez
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 12/15783-8 - Controle Ativo de Distúrbios Harmônicos em Veículos Híbridos Orientado por Métricas de Qualidade Sonora
• Beneficiário: Jaime Alberto Mosquera Sánchez
• Modalidade de apoio: Bolsas no Brasil - Doutorado