A COMPARISON BETWEEN EXPERIMENTAL AND ANALYTICAL TRANSIENT TEST RESULTS FOR A TURBOCHARGED DIESEL ENGINE
A computer controlled diesel engine test-bed is described. The system is capable of excursions into regions of very low air-fuel ratio operation without damage to the engine; this enables the engine "steady-state" characteristics to be measured for off-design operating conditions. A computer-based data acquisition system was developed to acquire test-bed results under engine transient operating conditions. An analogue computer model of the engine was constructed using the steady-state characteristics of the engine as obtained from on- and off-design. This model operated in real-time and was suitable for both studies of engine control systems and the testing of control hardware. Results obtained from the test-bed and the model are compared. It is shown that good agreement can be achieved by minor modifications to the model based on steady state results. /Author/TRRL/
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Corporate Authors:
Institution of Mechanical Engineers
1 Birdcage Walk
London SW1H 9JJ, England -
Authors:
- WINTERBONE, D E
- Benson, R S
- Class, G D
- Mortimer, A G
- Conference:
- Publication Date: 1976
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 267-276
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Serial:
- Volume: 190
- Issue Number: 22/7
Subject/Index Terms
- TRT Terms: Analog computers; Control systems; Data collection; Diesel engines; Fuels; Mathematical models; Simulation; Steady state; Test beds; Tests
- Uncontrolled Terms: Models
- ITRD Terms: 8623: Data acquisition; 1314: Diesel engine; 3850: Fuel; 6205: Model (not math); 6255: Test
- Subject Areas: Energy; Highways; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 00157493
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Report/Paper Numbers: Analytic
- Files: ITRD, TRIS
- Created Date: Dec 8 1977 12:00AM