This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Synthesis Method of Electro-Hydraulic Schemes of Mechatronic Control Systems for Hydromechanical Transmissions
Technical Paper
2003-01-0319
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The multispeed hydromechanical transmissions (HMT) belong to the most complicated automotive components. For many years the theory and the methods of the HMT analysis and synthesis were developed. For example, the “Lever Analogy” method is known (see SAE Pub. N810102 (1981). New computer-aided methods allow synthesis HMT kinematic schemes with preset gear ratio ranges.
The most important element of any modern HMT is the mechatronic control system (MCS), that practically gives to it the properties of continuously variable transmission. The base of MCS is the electro-hydraulic part, that defines its liveness and safety. Nevertheless, the analysis shows that apparently there are no generally accepted methods of their construction.
In this paper the analytical method of synthesising HMT electro-hydraulic control system is proposed. It is based on the theory of analysis and synthesis of discrete logical devices which is well known in technical cybernetics.
Citation
Krasnevski, L., "The Synthesis Method of Electro-Hydraulic Schemes of Mechatronic Control Systems for Hydromechanical Transmissions," SAE Technical Paper 2003-01-0319, 2003, https://doi.org/10.4271/2003-01-0319.Also In
SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V112-6; Published: 2004-09-15
Number: V112-6; Published: 2004-09-15
References
- Hydraulic control apparatus for automatic transmission Aisin Seiki K.K.
- Control apparatus for hydraulically operated vehicular transmission Honda Giken Kogyo K.K.
- Logic valving for a transmission control o General Motors Corp
- Krasnevski L. Vysotski M. Boikov V. The safety of mechatronic control systems for hydromechanical transmissions SAE Tech. Pap. Ser. 1999-01-1049
- Krasnevski L. Control of vehicles' multispeed hydromechanical transmissions 1990 256
- Bloh A. Sh. The synthesis of switching schemes 1966 200