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Engine Control by an On-Board Computer
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English
Abstract
A spark ignited internal combustion engine with computer controlled spark and exhaust gas recirculation has been operated over the CVS test cycle. At the 1975 emission level, a 10-20% improvement in fuel economy on the test vehicle over the initial production 1975 California vehicle was measured. Comparable driveability, octane, emission levels, and performance were obtained. The initial calibration for the control of spark and EGR was developed from engine dynamometer testing; computer simulations allowed for calibration development prior to vehicle implementation. Cost effectiveness questions have not been resolved.
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Citation
Moyer, D. and Mangrulkar, S., "Engine Control by an On-Board Computer," SAE Technical Paper 750433, 1975, https://doi.org/10.4271/750433.Also In
References
- Temple R. H. Devlin S. S. “The Use of Microprocessors as Automobile On-Board Controllers.” IEEE International Convention and Exposition March 1974
- Devlin S. S. “An Automotive On-Board Computer and Its Special Tradeoffs.”
- Oswald R. S. “Design Considerations for an On-Board Computer System.” Paper 750434 SAE Automotive Engineering Congress Detroit February 1975
- Gumbleton J. J. Bolton R. A. Lang H. W. “Optimizing Engine Parameters with Exhaust Gas Recirculation.” Paper 740104 SAE Automotive Engineering Congress Detroit February 1974