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Dynamic Characteristics of Clutch System for an Automatic Transmission
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 Title & Authors
Dynamic Characteristics of Clutch System for an Automatic Transmission
Kim, Ju Hwan; Kim, Hyun-Soo;
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 Abstract
In this paper, dynamic characteristics of an AT clutch system were investigated considering the dynamics of check ball and hydraulic control valves. Dynamic model of a pressure control solenoid valve (PCSV) was obtained by Bondgraph and permeance method. Also, the clutch piston and check ball dynamics were modeled by considering the effect of centrifugal force of the oil entrapped in the clutch chamber. In order to validate the dynamic models obtained, plunger displacement of PCSV and pressure response of the clutch supply lines were compared with the available experimental data, which were in good accordance with the numerical results. Using the dynamic model of the clutch system, simulations were performed to investigate the effect of the rotational speed on the response of clutch cylinder pressure, clutch piston and check ball displacement, and oil flow rate into the cylinder and flow rate out of the check valve.
 Keywords
Pressure Control Solenoid Valve;Check Ball;AT;Clutch Piston;
 Language
Korean
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