Agosto 2024 vol. 11 num. 1 - XXXI Simpósio Internacional de Engenharia Automotiva

Trabalho completo - Open Access.

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SEMG como fator de predição de percepção de qualidade do motorista em trocas de marchas em transmissões manuais

SEMG as a prediction factor for driver quality perception during gearshifts in manual transmission

DUQUE, E. L. ; CLAUDIA FERRARI CASTRO, Maria ; F. G., Plinio Thomaz Aquino Jr. ;

Trabalho completo:

A satisfação objetiva para um dado público alvo deve ser considerado no desenho de sistemas mecânicos/eletrônicos veiculares. Analisando os comportamentos humanos para entender pontos de conflito de motoristas como usuários desses sistemas para melhorar a segurança e percepção de qualidade. O desenho baseado no motorista deve considerar 4 passos: identificar os requisitos, entender as necessidades e os pontos de conflito no campo da pesquisa, observações e coleta de dados, usando sistemas disponíveis no mercado. O escolhido foi o sistema de troca de marchas de transmissões manuais, uma vez que os requisitos mais exigentes e a conexão direta com o usuário faz essa ação de extrema importância em termos de percepção de conforto em veículos automotores. A pesquisa apresenta um protocolo de testes em veículo em que aplica eletromiografia de superfície (sEMG) para correlacionar modelos contra avaliações subjetivas de motoristas não treinados. Estudos estatísticos levou a 3 propostas, mas somente o modelo considerando a média aritmética dos sinais de sEMG apresentaram relevância estatística. O protocolo apresentado mostrou potencial de ser aplicado em diversos estudos de experiência de usuários para sistemas veiculares, como pedais de embreagem e acelerador, infotainment e outros.

Trabalho completo:

The subjective satisfaction of a given target public must be considered to design vehicular mechanical/electronic systems. Analyzing human behaviors to understand conflict points of drivers as users of such systems to improve safety and quality perception. The driver-based design must consider 4 steps: identify requirements, understand the needs and points of conflict through field research, observations and data collection, using available system already in the market. The chosen one was the gearshift system of manual transmissions, once the more demanding market requirements and inherent direct connection to the user make this action extremely important in terms of comfort perception in motor vehicles. This research presents an in-vehicle test protocol which applies surface electromyography (sEMG) to correlate sEMG-based-linear models against subjective ratings given by non-trained drivers. Deep statistical studies led to three linear proposals, but only the model considering the arithmetic average of all sEMG signals had statistical relevance. The proposed protocol showed potential to be applied in several user experience studies for vehicle systems, like clutch and accelerator pedals, infotainment usage, comfort zone analysis, air conditioning controls and furthermore.

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DOI: 10.5151/simea2024-PAP08

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Como citar:

DUQUE, E. L.; CLAUDIA FERRARI CASTRO, Maria; F. G., Plinio Thomaz Aquino Jr.; "SEMG como fator de predição de percepção de qualidade do motorista em trocas de marchas em transmissões manuais", p. 47-57 . In: Anais do XXXI Simpósio Internacional de Engenharia Automotiva . São Paulo: Blucher, 2024.
ISSN 2357-7592, DOI 10.5151/simea2024-PAP08

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