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Multi-Variable Control for Engine Transmission Systems with Infinitely Variable Ratios
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English
Abstract
Two systems involving an infinitely variable connection between engine and output shaft are investigated, viz:
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(a)
the Differential Compound Engine (DCE)
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(b)
the shunt-hydrostatic transmission coupled to a turbocharged Diesel engine.
In both cases a given demanded input shaft condition can be met with a wide range of engine operating conditions. Since at least three external controls are available in both cases, viz:
-
(a)
fuel pump metering valve or governor set point
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(b)
turbine nozzle angle (DCE) or hydrostatic motor swash
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(c)
engine bypass (DCE) or hydrostatic pump swash
optimisation of these control settings for best overall efficiency, torque backup or minimum emissions becomes a necessity and will form an important element in traction power plant design in the future.
Authors
Topic
Citation
Wallace, F., Winkler, G., and Bowns, D., "Multi-Variable Control for Engine Transmission Systems with Infinitely Variable Ratios," SAE Technical Paper 770752, 1977, https://doi.org/10.4271/770752.Also In
References
- ‘Wolfson Engine/Transmission Laboratory Internal Report’ University of Bath 1975
- Wallace F.J. ‘Operating Characteristics of Compound Engine Schemes for Traction Purposes based on Opposed Piston Two Stroke Engines with Differential Gearing’ Proc IMechE 173 2 1963
- Wallace F.J. ‘The Differential Compound Engine’ SAE Detroit - 670110 January 1967
- Wallace F.J. Few P.C. Cave P.R. ‘The Differential Compound Engine - Interim Test Results and Assessment of Future Development’ Proc IMechE, VHO Symposium, Nottingham, Paper 6
- Wallace F.J. Few P.C. Cave P.R. ‘The Differential Compound Engine - Further Development’ SAE Congress Detroit January 1971
- Wallace F.J. Sivakumaran K. ‘The Differential Compound Engine - Part 1: Steady-State and Emission Characteristics’ Report No. 740721. National Combined Farm, Construction & Industrail Machinery and Powerplant Meetings Milwaukee, USA 1-12 September 1974
- Wallace F.J. Hargreaves M.R.O. Bowns D.E. Cave P.R. ‘The Differential Compound Engine - Part 2: Transient Response of the Differential Compound Engine (DCE) Compared with Conventional Turbocharged Engines’ Report No. 740722. National Combined Farm, Construction & Industrial Machinery and Powerplant Meetings Milwaukee, USA 1-12 September 1974
- Bowns D.E. Edge K.A. ‘The Optimisation of Performance of Four Diesel Engine Hydrostatic Systems’ I.Mech.E. Conference January 1977 Land Transport Engines/Economics vs. Environment
- Giles J.G. ‘Differential Transmission Systems’ Engineering OUtline No. 40 Engineering, London 7th October 1966
- Giles J.G. Mills B.C. ‘Double Differential Transmission for Passenger Car’ MIRA Report 1961
- Wallace F.J. Cave P.R. ‘A General Approach to the Computer Solution of Combustion Engine Mass Flow and Power Matching Analysis’ Proc. IMechE 1973 187 48 73 535
- Wallace F.J. Sivakumaran K. ‘Matching of High-Output Turbocharged Engines for Maximum Torque Backup and Emission Reduction Based on the Use of Variable Geometry Compressors and Turbines’ Report No. 740738 National Combined Farm, Construction and Industrial Machinery and Powerplant Meetings Milwaukee, USA 1-12 September 1974