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This paper studies the estimation of the frictional torque of the synchromesh during the gear shifting operation in an electric vehicle equipped with a clutchless automated manual transmission (AMT). The clutchless drivetrain of the electric vehicle is discussed and the dynamical model of the powertrain from the electric traction motor to the synchromesh system of a two-speed AMT is developed. In...
The aim of this study is to control the synchronizer operation in an automated manual transmission (AMT) in which the clutch is eliminated from the driveline to reduce the power losses. The goal of controlling the synchronization phase is to increase the lifetime of the synchronizer by establishing control over the frictional behaviour of such tribological system. The robust control approach starts...
This paper considers the constrained control problem of the friction regimes in sliding lubricated surfaces with the purpose of speed synchronization, wear reduction and increasing the lifetime of the friction lining material. The case study here is the engagement process of the synchronizer cone clutch system. Such synchronizer performs the clutchless gear shifting in a 2-speed automated manual transmission...
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