Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Modelling the Hydraulic Circuit of an Automatic Transmission
Submission Author:
Tiago Macedo , SC , Brazil
Co-Authors:
Tiago Macedo, Victor Juliano De Negri, Leonardo Serfert Junior
Presenter: Victor Juliano De Negri
doi://10.26678/ABCM.COBEM2017.COB17-0761
Abstract
Is well known that the application of automatic transmissions in passenger cars in the world have been increased since its first appearance on mid’s 1940. The hydraulic circuit of a conventional automatic transmission plays the major role due to its main functions: lubrication and actuation. The actuation function can be related to pressure control, gear shift timing control, shifting quality and consequently the drivability, passenger and driver's comfort and fuel save. Due to the relevance of the hydraulic circuit in these systems, most of transmission failures are related to fail of its components. In this article, a Matlab/Simulink modeling of the hydraulic circuit of the conventional automatic transmission is shown. The objective in this paper is to reproduce, with dynamic modeling, the behavior of the hydraulic system and the components movements within it, to observe the characteristics of the system operating in perfect conditions and to compare with the effects of when some failure in the components inserted in the model. Differently from other researches in this area, whose objective is to model the transmission and improve its control system during the shifting process, this present work aims to develop a tool that helps the fault detection, furthermore the detail knowledge about the hydraulic system and its behavior.
Keywords
Automatic Transmission, modelling, Hydraulic Circuit, System Failure
