Gear Shift Modeling and Analysis for Automatic Transmissions in MapleSim - Maplesoft

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Gear Shift Modeling and Analysis for Automatic Transmissions in MapleSim

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Gear shifting in vehicles with automatic transmissions is an important topic in the automotive powertrain industry, as evidenced by the sheer number of studies published over the past few decades.

In this paper, a simple dynamic physical model of an automatic transmission was created to evaluate all required forces and motion characteristics of the system during the shift process. Gear shift quality was assessed by setting different timing sequences for the engage/disengage process of the frictional components (pressure on the clutches), during the upshift process. The output torque of the transmission was analyzed under two conditions, with the timing to apply/remove pressure from the clutches being different in both cases.


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