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The Design and Testing of a Computer-Controlled Cooling System for a Diesel-Powered Truck
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English
Abstract
The hardware and software for a prototype computer controlled cooling system for a diesel powered truck has been designed and tested.
The basic requirements for this system have been defined and the control functions, previously investigated in a study using the computer simulation model, were incorporated into the software.
Engine dynamometer tests on the MACK-676 engine, comparing the conventional cooling system and the computer controlled system, showed the following advantages of the computer controlled system:
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1.
The temperature level to which the engine warms up to at low ambient temperature, was increased.
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The faster shutter response reduced the temperature peaks and decreased total fan activity time.
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3.
The faster fan response reduces fan engagement time which should improve truck fuel economy.
Authors
Citation
Xu, Z. and Johnson, J., "The Design and Testing of a Computer-Controlled Cooling System for a Diesel-Powered Truck," SAE Technical Paper 841712, 1984, https://doi.org/10.4271/841712.Also In
References
- Xu Zengyong Johnson J.H. Chiang E.C. “A Simulation Study of a Computer Controlled Cooling System for a Diesel Powered Truck,” SAE Paper No. 841711 1984
- Chiang E.C. Ursini V.J. Johnson J.H. “Development and Evaluation of a Diesel Powered Truck Cooling System Computer Simulation Program,” SAE Paper No. 821048 1982
- RM 6500, Programming Manual Rockwell International 1979
- AIM 65, Monitor Program Listing Rockwell International 1979
- AIM 65, Basic Language Reference Manual Rockwell International 1979
- UMAC-4000 User's Manual Analog Devices 1981