Modeling and Simulation of a Shift Hydraulic System for a Stepped Automatic Transmission

2003 ◽  
Author(s):  
Sarawoot Watechagit ◽  
Krishnaswamy Srinivasan
Keyword(s):  
Modeling And Simulation ◽  
Hydraulic System ◽  
Automatic Transmission

Design Scheme and Simulation on Automatic Transmission Travel System of Engineering Vehicles Hydraulic Chassis

2010 ◽  
Vol 156-157 ◽  
pp. 137-141 ◽  
Author(s):  
Hui Xian Han ◽  
Pi Shun Ren ◽  
Xian Li Cao ◽  
Mao Fu Liu
Keyword(s):  
Control Strategy ◽  
Hydraulic System ◽  
Automatic Transmission ◽  
Travel Speed ◽  
Transmission System ◽  
Control Effect ◽  
Actual System ◽  
Virtual Test ◽  
Design Scheme ◽  
Software And Hardware

This study analysis the use requirement of engineering vehicles travel system, introduces the hydraulic system and the design scheme of automatic transmission system, discusses the control strategy and method of engineering vehicles travel speed, modeling and simulating based on the actual system software and hardware and the control Strategy and method of automatic transmission system, verifies the vehicle control effect through virtual test, and draws the full-text conclusion at last.

Modeling and Simulation of Jetpipe Servovalve Torque Motor

2014 ◽  
Vol 592-594 ◽  
pp. 2308-2313 ◽  
Author(s):  
A.S. Sharan ◽  
Somashekhar S. Hiremath ◽  
C.S. Venkatesh
Keyword(s):  
Modeling And Simulation ◽  
System Design ◽  
Hydraulic System ◽  
Dynamic Performance ◽  
Critical Parameters ◽  
Electric Signal ◽  
Engineering Systems ◽  
Spring Stiffness ◽  
Mechanical Displacement ◽  
System Design Approach

The torque motor is a precision mechatronic component used to convert low electric signal into linear mechanical displacement of the Jetpipe. Such torque motors are categorized under multi disciplinary engineering systems, which are complex in nature and also induces challenges to integrate with hydraulic system. This paper applies model-based system design approach of jetpipe servovalve torque motor to study the effect of critical parameters like armature length and air gap, feedback spring stiffness, and flexure tube stiffness on the dynamic performance of the were studied.

Modeling and Simulation of Hydraulic System with Fuzzy Uncertain Parameters

2010 ◽  
Author(s):  
Xuefeng Jiang ◽  
Ping He ◽  
Yunqing Zhang ◽  
Wei Chen ◽  
Liping Chen
Keyword(s):  
Modeling And Simulation ◽  
Hydraulic System ◽  
Uncertain Parameters

Modelling of dynamic characteristics of an automatic transmission during shift changes

2002 ◽  
Vol 216 (4) ◽  
pp. 331-341 ◽  
Author(s):  
N Zhang ◽  
D K Liu ◽  
J M Jeyakumaran ◽  
L Villanueva
Keyword(s):  
Dynamic Characteristics ◽  
Hydraulic System ◽  
Model Simulation ◽  
Automatic Transmission ◽  
Torque Converter ◽  
Transmission System ◽  
Simulation System ◽  
Transient Dynamics ◽  
Output Torque ◽  
System Module

This paper describes modelling of the transient dynamics of an automatic transmission during gear changes. A brief introduction to the automatic transmission system and the dynamic characteristics of the transmission components during the gear changes are presented. Then, detailed mathematical models of a four-speed automatic transmission manufactured by BTR Automotive, Australia, are developed. A mode description method is used to describe the transient shifting process and a modular structure of the transmission system, which consists of a torque converter module, geartrain module, hydraulic system module and modules of clutches and bands, is presented. As an application, the developed simulation system is applied to investigate the transient performance of the automatic transmission during the 1–2 shift process. The output torque profiles predicted by the model simulation correlate very well with the experimental data measured from vehicle tests.

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