Estimation of Fuel Economy Improvement in Gasoline Vehicle Using Cylinder Deactivation
AbstractCylinder deactivation is a fuel economy improvement technology that has attracted particular attention recently. The currently produced cylinder deactivation engines utilize fixed-type cylinder deactivation in which only a fixed number of cylinders are deactivated. As fixed-type cylinder deactivation has some shortcomings, variable-type cylinder deactivation with no limit on the number of deactivated cylinders is under research. For variable-type cylinder deactivation, control is more complicated and production cost is higher than fixed-type cylinder deactivation. Therefore, it is necessary to select the cylinder deactivation control method considering both advantages and disadvantages of the two control methods. In this study, a fuel economy prediction simulation model was created using the measurement data of various vehicles with engine displacements of 1.0–5.0 L. The fuel economy improvement of fixed-type cylinder deactivation was compared with that of variable-type cylinder deactivation using the created simulation. As a result of examining the fuel economy improvement of the test vehicle in the FTP-75 driving cycle, the improvement was 2.2–10.0% for fixed-type cylinder deactivation and 2.2–12.8% for variable-type cylinder deactivation. Furthermore, the effect of the engine load on fuel economy improvement under cylinder deactivation and the effect of changes in engine control were examined via a simulation. View Full-Text
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Lee, N.; Park, J.; Lee, J.; Park, K.; Choi, M.; Kim, W. Estimation of Fuel Economy Improvement in Gasoline Vehicle Using Cylinder Deactivation. Energies 2018, 11, 3084.
Lee N, Park J, Lee J, Park K, Choi M, Kim W. Estimation of Fuel Economy Improvement in Gasoline Vehicle Using Cylinder Deactivation. Energies. 2018; 11(11):3084.Chicago/Turabian Style
Lee, Nankyu; Park, Jinil; Lee, Jonghwa; Park, Kyoungseok; Choi, Myoungsik; Kim, Wongyu. 2018. "Estimation of Fuel Economy Improvement in Gasoline Vehicle Using Cylinder Deactivation." Energies 11, no. 11: 3084.
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