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Characteristics of Multiple Range Hydromechanical Transmissions
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English
Abstract
The purpose of this paper is to show the advantages of multirange hydromechanical transmissions and to show some basic relationships of primary design parameters. Hydromechanical transmissions can be designed so that they maintain a high efficiency over a wide range of torque/speed variations. The amount of volumetric loss and, therefore, slip, can be reduced to a minimum; therefore, it is possible to control the speed of the powerplant by proper ratio control.
The powerplant and transmission can be considered as one system which is permitted to operate, under optimum conditions, irrespective of the road load or speed of the vehicle.
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Citation
Orshansky, E. and Weseloh, W., "Characteristics of Multiple Range Hydromechanical Transmissions," SAE Technical Paper 720724, 1972, https://doi.org/10.4271/720724.Also In
References
- Looman Johannes Berlin Springer Verlag 1970 66 70
- Giles J. G. “Automatic and Fluid Transmissions.” Odhams Press Ltd. London 1961 297 310 318 322
- Giles J. G. “The Use of Positive-displacement Hydraulic Drives for Motor Car Transmissions.” M.I.R.A. Report 1956 1957
- Wilson Warren E. “Hydrostatic Transmission.” Machine Design Dec. 7 1961
- Hamparian Edward “The Evolution of Power Trains and Steering in High Speed Military Track-Laying Vehicles.” SAE Transactions 76 paper 670726