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Application of multi-speed gearbox in infinitely variable transmission
, Article Iranian Journal of Science and Technology - Transactions of Mechanical Engineering ; Volume 41, Issue 2 , 2017 , Pages 149-157 ; 22286187 (ISSN) ; Delkhosh, M ; Foumani, M. S ; Rostami, P ; Sharif University of Technology
Shiraz University
2017
Abstract
One way to reduce vehicles' fuel consumption (FC) is to optimize different parts of its powertrain. Among different modern powertrains, continuously variable transmission (CVT) is one of the common types which changes speed ratio between engine and wheels, continuously. Therefore, the CVT allows the engine to operate at its fuel-optimal speed. Due to the limited power transmission capacity and speed ratio range of the CVT, researchers attempted to combine the CVT with a planetary gear train and a fixed ratio mechanism. This mechanism is called infinitely variable transmission (IVT). In this study, a multi-speed gearbox (MSG) is used in the IVT and its impact on the powertrain performance and...