Suspensão semiativa: análise de uma suspensão seamiativa com controle híbrido para valores diferentes de α
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TCC
Date
2020-12-10
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Authors
Eduardo, Giovanna Ponciano
Ohara, Pedro Paulo Hiroshi
Oliveira, Ricardo José Gonzalez de
Ohara, Pedro Paulo Hiroshi
Oliveira, Ricardo José Gonzalez de
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Raia, Fábio
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Abstract
Este trabalho tem como objetivo analisar uma suspensão semiativa com controle híbrido utilizando diferentes valores de α, e para isso foram calculadas as características da suspensão, simulando o controle híbrido de suspensão semiativa para diferentes valores de α e analisando os resultados obtidos. Para o cálculo destas características foi utilizado a dinâmica de ¼ de veículo, um veículo de 1600,00 kg com distribuição de peso de 50,00%, uma massa não suspensa de 45,00 kg e um coeficiente de rigidez do pneu de 200000,00 N/m. A simulação do modelo alterando o valor de α foi feita utilizando o toolbox Simulink®️ do software Matlab®️ e o controle de suspensão foi feito utilizando o diagrama de blocos. Para chegar nos resultados foram utilizados gráficos de descolamento de massa suspensa sobre o tempo para os diferentes valores de α, e assim observando a diferença percentual do pico de deslocamento das massas e a ultrapassagem percentual, o resultado obtido foi que os valores de α próximos de 0,5 apresentam melhor desempenho permitindo um bom balanceamento entre conforto e aderência.
This work seeks to analyze a semi-active suspension with hybrid control using different values of α, and for that purpose the characteristics of the suspension were calculated, simulating the hybrid control of semi-active suspension for different values of α and analyzing the results obtained. For the calculation of these characteristics, a quarter car model was used and considered a vehicle mass of 1600,00 kg with a weight distribution of 50,00%, an unsprung mass of 45,00 kg and a tire stiffness coefficient of 200000,00 N/m were used. The model simulation changing the value of α was made using the toolbox Simulink®️ from the Matlab®️ software and the suspension control was done using the block diagram. To arrive at the results, was used graphs of displacement of the sprung and unsprung mass over time for the different values of α, and thus observing the percentage difference of the mass displacement peak and the overshoot, the result obtained was that the α values close to 0,5 perform better allowing a good balance between comfort and grip.
This work seeks to analyze a semi-active suspension with hybrid control using different values of α, and for that purpose the characteristics of the suspension were calculated, simulating the hybrid control of semi-active suspension for different values of α and analyzing the results obtained. For the calculation of these characteristics, a quarter car model was used and considered a vehicle mass of 1600,00 kg with a weight distribution of 50,00%, an unsprung mass of 45,00 kg and a tire stiffness coefficient of 200000,00 N/m were used. The model simulation changing the value of α was made using the toolbox Simulink®️ from the Matlab®️ software and the suspension control was done using the block diagram. To arrive at the results, was used graphs of displacement of the sprung and unsprung mass over time for the different values of α, and thus observing the percentage difference of the mass displacement peak and the overshoot, the result obtained was that the α values close to 0,5 perform better allowing a good balance between comfort and grip.
Description
Keywords
suspensão , controle , híbrida , semiativa , suspension , control , hybrid , semiactive