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Experimental Study for the Performance Analysis of Automatic Transmissions
Technical Paper
943844
Sector:
Event:
KSAE Spring Conference
Language:
Korean
Abstract
An automatic transmission is a shifting device of which shifting
mechanism is automated by its shifting algorithm (TCU), and
consists of several components such as engine, torque converter,
one-way clutch, multi-plate clutch and planetary gear sets. The
dynamic analysis of automatic transmissions means the performance
analysis and prediction for the imaginary driving condition by the
numerical analysis program based on the dynamic modeling of
components. The reliability of the analyzed results depends on
several factors such as reasonable hypothesis for analysis, valid
dynamic models of components, reliable experimental data and
accurate numerical method. To reduce the error of analysis results,
the descriptive limits of dynamic model must be examined, and the
proposed model must be reviewed by the experimental results.
In this study, for the automatic transmission of a heavy-duty
vehicle driven by caterpillar, the dynamometer test of the
transmission was performed to verify the validity of simulation
results. Through the experimental data, the effective performance
parameters and non-linear characteristics of engine were
obtained.