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A Precision Pressure-Source System for EFI-Control-Unit Calibration and Test
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English
Abstract
Simulating manifold absolute pressure for the calibration and test of domestic Electronic Fuel Injection (EFI) controls demanded an absolute-pressure-source-system stability, accuracy, and speed of response not previously required for automotive-component manufacture. A 36-point pressure source having a root-mean-square stability of ±0.002 pound per square inch (±13 pascals) absolute, an accuracy of better than ±0.002 pound per square inch (±13 pascals) absolute, and a response time of 500 milliseconds into a 1-cubic-inch (16-cubic-centimeter) switched volume was developed to meet this need. Source-system design drew heavily on aircraft flight-line-check-out test-equipment experience. The system is used for 100 percent production calibration and test of EFI Electronic Control Units.
Authors
Citation
Wolber, W., Bata, G., David, C., Gollomp, B. et al., "A Precision Pressure-Source System for EFI-Control-Unit Calibration and Test," SAE Technical Paper 760245, 1976, https://doi.org/10.4271/760245.Also In
References
- Rivard J. G. “The Electronic Control Unit for Production Electronic Fuel Injection Systems.” Paper No. 760242 SAE Automotive Engineering Congress Detroit, Michigan 23-27 February 1976
- Schlag J. H. “Automatic Computer-Controlled Calibration of EFI Control Units.” Paper No. 760243 SAE Automotive Engineering Congress Detroit, Michigan 23-27 February 1976
- Ahern C. J. Bata G. T. Tarter J. H. Wolber W. G. “The EFI-Control-Unit Final Test Station.” Paper No. 760244 SAE Automotive Engineering Congress Detroit, Michigan 23-27 February 1976
- Benedict R. P. “Fundamentals of Temperature, Pressure, and Flow Measurements.” New York, N.Y. John Wiley & Sons 1969