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Steady State and Transient Control Through a Microprocessor-Electrohydraulic System of an Integrated Engine-Transmission Unit
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English
Abstract
The paper describes the steps in the implementation of a self-optimising steady state micro-processor control system for the integrated truck engine transmission system known as the differential compound engine (DCE). References (1–5). Although the system in its present form is based on a small and slow microprocessor, the control strategy evolved is directly applicable to the faster system ultimately envisaged. The second part of the paper deals with the requirements for faster control of transients, with particular reference to operational safety requirements, such as limiting compressor speed and maximum cylinder pressure.
It is considered that the unit forms the basis for advanced on- and off-highway vehicle power plant with uniquely attractive operating characteristics.
Authors
Citation
Wallace, F., Howard, D., and Tarabad, M., "Steady State and Transient Control Through a Microprocessor-Electrohydraulic System of an Integrated Engine-Transmission Unit," SAE Technical Paper 830578, 1983, https://doi.org/10.4271/830578.Also In
References
- Wallace, F.J. Few, P.C. Cave, P.R. “The Differential Compound Engine - Further Development” SAE Congress Detroit Jan. 1971
- Wallace, F.J. Sivakumaran, K. “The Differential Compound Engine - Part 1: Steady-State and Emission Characteristics” National Combined Farm, Construction & Industrial Machinery and Powerplant Meetings Milwaukee, U.S.A. 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” National Combined Farm, Construction & Industrial Machinery and Powerplant Meetings Milwaukee, U.S.A. 1–12 September 1974
- Wallace, F.J. Winkler, G. Bowns, D.E. “Multi-Variable Control for Engine Transmissions Systems with Infinitely Variable Ratios” SAE Milwaukee Paper No. 770752 September 1977
- Wallace, F.J. Kimber, R.M. “Optimization of the Differential compound Engine using Microprocessor Control” SAE Congress, Detroit February 1981 paper 810256