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Master's Dissertation
DOI
10.11606/D.18.2018.tde-11072018-102056
Document
Author
Full name
Adriano Carlos Nogueira Bezerra
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2000
Supervisor
Committee
Passarini, Luis Carlos (President)
Hildebrand Junior, Leonidas
Silva, Mário Roberto da
Title in Portuguese
Proposta para implementação de uma bancada dinamométrica automatizada para ensaios em tempo real de motores de combustão interna do ciclo Otto
Keywords in Portuguese
Dinamômetro
LabView
Motor
Abstract in Portuguese
Com o advento da crise do petróleo na década de 70, os motores, que antes eram calibrados para fornecer máximos torque e potência, após a crise passaram a ser calibrados de forma a fornecer consumo específico e emissões mínimos. A partir de então os motores passaram a ser ensaiados em bancadas dinamométricas que possuíam módulo para medição de emissões e que simulavam condições mais reais de tráfego, segundo um ciclo de ensaios preestabelecido. Este trabalho contém um levantamento bibliográfico sobre o instrumental, metodologias e procedimentos utilizados nos ensaios dinamométricos permanentes e dinâmicos e propõe a implementação de uma metodologia para realização de ensaios em tempo real controlado por computador. Traz também os resultados experimentais relativos à parte da metodologia que foi implementada.
Title in English
Proposal for implementation of an automated dynamometric bench for tests in real time of internal combustion engines of the Otto cycle
Keywords in English
Dynamometer
Engine
LabView
Abstract in English
With the advent of petroleum crisis in the 70's, engines, previously calibrated in order to supply maximum momentum and power, after the crisis they started being calibrated to supply minimum specific consumption and emissions. After this, engines started being tested in dynamometric benches equipped with emission measure modules and that simulate traffic conditions closer to reality, according to a prior emissions cycle. This work contain a bibliographic survey about instruments, methodologies and procedures used in the steady-state and dynamic dynamometric tests and proposes the implementation of a methodology to perform real time tests controlled computationally. It brings too experimental results related to the implemented methodology.
 
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Publishing Date
2018-07-12
 
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