The Synthesis Method of Electro-Hydraulic Schemes of Mechatronic Control Systems for Hydromechanical Transmissions 2003-01-0319
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. Download Citation
Author(s):
Leonid Krasnevski
Affiliated:
National Academy of Sciences of Belarus
Pages: 9
Event:
SAE 2003 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Transmission & Driveline Systems Symposium 2003-SP-1760, SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems-V112-6
Related Topics:
Continuously variable transmissions
Hydromechanical transmissions
Control systems
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