This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of the Dynamics of a Hydraulic Control Circuit of an Automatic Gearbox
Technical Paper
2003-01-0317
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The description of the supply pressure hydraulic circuit and the couplings between its components are presented. A comparison between simulations and experiments is carried out. Using some linear facilities, it is possible to conclude that the low frequency modes mainly correspond to the wave effects of hydraulic lines which connect valves to each other.
In order to maintain a pressure in the supply circuit, an electronic pressure control is necessary. The design of a control law needs to build different linear models for different levels of pressure since the system is very non linear. Three transfer functions are found for three pressure levels. These transfer functions are very similar to the ones used by the automatic control department and obtained by experiments. Using these transfer functions it is possible to design the control law.
The “software tool” developed for this application uses state-of-the-art knowledge in hydraulics as well as in mechanical components used in gearboxes. This enables to connect, in a single tool, the electro-hydraulic control unit to each actuator and clutch the circuit has to control. This “tool” is introduced as a part of the V-cycle process of the automatic gearbox, from the design and development to the validation and test.
Recommended Content
| Technical Paper | An Automotive Vacuum Pump Driven by Exhaust Pressure Pulsations |
| Technical Paper | Electrohydraulic Loadsensing |
| Technical Paper | Energy Efficient Actuation Using Variable Displacement Hydraulic Control |
Authors
Topic
Citation
Favennec, G., Sall, B., Lebrun, M., and Alirand, M., "Analysis of the Dynamics of a Hydraulic Control Circuit of an Automatic Gearbox," SAE Technical Paper 2003-01-0317, 2003, https://doi.org/10.4271/2003-01-0317.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 |
Also In
References
- Alirand M. Gallo F. “Development of a powerful drive line library in AMESim to model transmission systems” Global Powertrain Congress, Advanced Transmission Design and Performance Stuttgart, Germany October 1999 66 74
- Alirand M. Favennec G. Lebrun M. “Pressure component stability analysis: A revisited approach” Int. Journal of Fluid Power 3 1 April 2002 33 46
- Borghi M. Millani M. Piraccini M. Flandoli M. “Analysis of a F1 car hydraulic circuit dynamic behavior” SAE paper n° 2001-01-1162 Detroit, MI March 2001 225 230
- Favennec G. Lebrun M. Obert J. “Analyse théorique et expérimentale du comportement dynamique d'une électrovalve de modulation, application à une boîte de vitesses automatique” SIA Congress, Fluid Power et les Transports May 1999 1 10
- Favennec G. Lebrun M. “The simulation for a design process of a hydraulic circuit for automatic gear boxes” Global Powertrain Congress, Advanced Transmission Design and Performance Stuttgart, Germany October 1999 75 81
- Favennec G. “Contribution à l'amélioration du cycle de conception du circuit hydraulique de commande d'une boîte de vitesse automatique par simulation et modélisation” University Claude Bernard Lyon, France March 2001
- Favennec G. Alirand M. Lebrun M. “Optimal response of pressure reducer and stability influence of the downstream line dynamics” 2 nd Fluid Power Net Int. PhD Symposium Modena, Italy July 2002 1 10
- Favennec G. Alirand M. Lebrun M. “Complementary analysis of components involved in a hydraulic circuit of an automatic gearbox”
- Hrovat D. Asgari J. Fodor M. “Automotive mechatronic systems” Mechatronic Systems Techniques and Applications 2 Leondes C.T. Gordon and Breach Science Publishing 2000 1 98
- Kargar K. Derrien D. Martinez O. Alirand M. Gallo F. “Outil d'aide à la conception Librairie Transmission sous AMESim” SIA Congress, Fluid Power et les Transports May 1999 1 10
- Karmel A.M. “Dynamic modeling and analysis of the hydraulic system of automotive automatic transmissions” Proceedings of the 1986 American Control Conference June 1986 273 278
- Lasa M.U. Becker U. Heinkel H.M. Rothfuß R. “Modelling injection valves from 3D to real time” Proceedings of the 1 st IFAC Conference on Mechatronic Systems Darmstadt, Germany October 2000 2 675 680
- Lasa M. “A system engineering approach for computer based design in Mechatronics - A common rail application” University of Magdeburg Germany June 2002
- Lebrun M. Richards C.W. Fargeton D. “Proposal for a reusable models library - Application to an injection system for a diesel engine” 4 th Japanese Hydraulic and Pneumatic Society Int. Symposium on Fluid Power Tokyo, Japan November 1999 249 254
- Lebrun M. Richards C.W. “How to create good models without writing a single line of code” 4 th Scandinavian Int. Conference on Fluid Power Linköping, Sweden June 1997 1 19 32
- Lebrun M. “Contribution à l'amélioration du cycle de conception du circuit hydraulique de commande d'une boîte de vitesse automatique par simulation et modélisation” Technique de l'Ingénieur
- Martin B. Redinger C.J. Dourra H. “CHRYSLER 45RFE: A new generation real-time electronic control RWD automatic transmission” Int. Congress and Exposition Detroit, MI March 1999 SAE Paper n° 1999-01-0755 181 201
- Martinez Garcia O. Kargar K. “Simulation tool for transmission and driveline systems design” Int. Congress and Exposition Detroit, MI February 2000 SAE paper n° 2000-01-0832 51 61
- Megli T.W. Haghgooie M. Colvin D.S. “Shift characteristics of a 4-speed automatic transmission” Int. Congress and Exposition Detroit, MI February 1999 SAE paper n° 1999-01-1060 315 327
- Nanua P. “Application of AMESim in transmission system analysis” 2 nd European AMESim Users' Conference Paris, France April 2002
- Pichon Y. “AMESim to model global system for control designer” Global Powertrain Congress Stuttgart, US June 2000 1 12
- Sanada K. Richards C.W. Longmore D.K. Johnston D.N. “A finite element model of hydraulic pipelines using an optimized interlacing grid system” Proc. of IMechE 207 1993 208 213
- Schwab M. “Electronic control of a 4-speed automatic transmission with lock-up clutch” SAE paper n° 840448 Detroit, MI, USA March 1984 85 93
- Schwemer C. “Simulation of the hydraulic control of the automatic transmission 6HP26” 2 nd European AMESim Users’ Conference Paris, France April 2002
- Shin B. Hur J. Han S. Lee K. “The analysis of proportional solenoid valve and its application to the shift control of automatic transmission” 4 th Japanese Hydraulic and Pneumatic Society Int. Symposium on Fluid Power Tokyo, Japan November 1999 649 654
- Shuxing Y. Shulan W. Xiangzhu L. Fan C. “On the frequency response characteristics of PWM high-speed on-off valves” 2 nd Japanese Hydraulic and Pneumatic Society Int. Symposium on Fluid Power Tokyo, Japan November 1993 459 463
- Ullman D.G. “The mechanical design process” Mac Graw-Hill Edit. 1992
- Wilson B.H. Stein J.L. “An algorithm for obtaining proper models of distributed and discrete systems” Trans. ASME, Journal of Dynamic Systems : Measurement and Control 117 December 1995 534 540