Título: | LONGITUDINAL DYNAMICS AND TRACTION CONTROL APPLIED TO A FOUR-WHEEL DRIVE (4WD) VEHICLE | ||||||||||||
Autor(es): |
GUILHERME MACHADO PEREIRA |
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Colaborador(es): |
MAURO SPERANZA NETO - Orientador RICARDO TEIXEIRA DA COSTA NETO - Orientador |
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Catalogação: | 02/JUL/2013 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | SENIOR PROJECT | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=21709@1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=21709@2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.21709 | ||||||||||||
Resumo: | |||||||||||||
This work aimed to model and simulate the performance of an automotive vehicle operating at full load, i.e. full throttle.
The first stage of the project consisted of the Transmission Matching: set gear and differential ratios in order to adapt the vehicle’s behavior as desired. For this purpose, it was necessary to build a table including various vehicle parameters such as torque, engine speed, speed, acceleration, resistive forces, among others. This table was then introduced in Microsoft Excel to simulate the behavior of the vehicle starting from the steady state at full throttle until it reaches its maximum speed. From the engine performance map and three different scenarios (underrevving, optimal and overrevving design), it was possible to define the gear and differential ratios, as well as the graphics performance of the vehicle for each desired configuration.
The second stage of this project consisted of a more accurate simulation of the vehicle’s longitudinal dynamics during its development at full load. The virtual simulation tool Simulink, combined with its toolbox SimDriveline, was essential for considering some mechanical and dynamic aspects ignored by Excel, such as friction and inertia of the bearings and tire relative slip. The main purpose of this stage was to introduce a Traction Control System (TCS) on the four-wheel drive (4WD) vehicle and analyze the improvement in its performance. The parameters obtained in the Matching were used in this simulation in order to compare the resulting graphs with and without the wheel slip control.
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