Setembro 2023 vol. 10 num. 1 - XXX Simpósio Internacional de Engenharia Automotiva

Trabalho completo - Open Access.

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Desenvolvimento de metodologia de teste de consumo de combustível de caminhões em estradas horizontais planas, usando um reboque de arrasto com freio eletromagnético, simulando programas com diferentes níveis de inclinação e pesos brutos.

Development of trucks fuel consumption testing methodology on flat horizontal roads using a towing trailer with electromagnetic brake, simulating programs with different slope levels and gross weights.

REHDER, Haraldo ; REHDER, Gustavo Pamplona ;

Trabalho completo:

"""Desenvolvimento de metodologia de teste de consumo de combustível de caminhões em estradas horizontais planas, usando um reboque de arrasto com freio eletromagnético, simulando programas com diferentes níveis de aclives e pesos brutos."" Desenvolvimentos relativos ao Aquecimento Global e legislações como Euro 6, CONAMA e VECTO exigem testes de caminhão em estrada. Esses testes têm problemas como tráfego e reprodutibilidade a longo prazo. Os testes com um protótipo de reboque de arrasto com freio eletromagnético foram apresentados anteriormente pelos autores e destacados em uma revisão no SIMEA 2021.Este trabalho apresenta o teste de consumo de combustível realizado com o reboque de arrasto e um caminhão trator de 440 HP em estrada horizontal plana e em um segmento de estrada com aclive constante, medido pelo volume efetivo de Diesel, consumido em um tanque de teste. Testes em estrada horizontal com um máximo de 60 km/h e sem corrente de frenagem, apresenta uma autonomia de 1,92 km/l, (100%); a 78 km/h uma autonomia menor, de -27%; uma autonomia de -28% com corrente de frenagem eletromagnética máxima. Os testes num segmento de estrada com aclive constante revelaram uma autonomia de - 5,5% pela velocidade máxima de 60 km/h sem corrente de frenagem e uma autonomia de -28 % com corrente máxima de teste e 35 km/h. Foi possível comparar resultados em estrada real com inclinação e simulações em estrada horizontal plana. Propõe-se, portanto, testes de consumo de combustível e também em futuros testes de emissões por programas de simulação em pistas de ensaio horizontais. Deve ser desenvolvida a medição do torque de frenagem nos semieixos do eixo traseiro do reboque, para controlar esses programas."

Trabalho completo:

Global warming developments and legislations such as Euro 6, CONAMA and VECTO require truck on-road tests. These tests have issues such as traffic and long-term reproducibility. Tests with a Towing Trailer Prototype with electromagnetic brake were previously presented by the authors and highlighted in a review in SIMEA 2021.This present paper presents reproducible fuel consumption test methodology performed with the Towing Trailer and a 440 HP tractor truck on flat horizontal roads and tracks, simulating different speeds, slope levels and gross weights. Tests were performed on each road segment and fuel measured by the effective consumed Diesel volume of a test tank. It was possible to check the reproducibility of the consumption measurement and the influence of speed and braking current. Test results on a flat horizontal road and, on sloped road segment were compared and show the possibility to compare results on real road with slopes and simulation on flat horizontal roads. Based on these results it is proposed to perform fuel consumption and also emission tests by simulation programs on horizontal test tracks or simulation tests on road with increased slopes. Braking torque measurement on the rear axle of trailer should be developed, to control those programs.

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DOI: 10.5151/simea2023-PAP48

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Como citar:

REHDER, Haraldo; REHDER, Gustavo Pamplona; "Desenvolvimento de metodologia de teste de consumo de combustível de caminhões em estradas horizontais planas, usando um reboque de arrasto com freio eletromagnético, simulando programas com diferentes níveis de inclinação e pesos brutos.", p. 308-317 . In: Anais do XXX Simpósio Internacional de Engenharia Automotiva . São Paulo: Blucher, 2023.
ISSN 2357-7592, DOI 10.5151/simea2023-PAP48

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