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Closed Loop Turbocharger Control with Transient Wastegate Functions
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English
Abstract
Conventional turbocharger boost controls, using either a simple mechanical wastegate or a knock-based electronically-controlled strategy, have had some weaknesses in the areas of transient response, performance with a cold” engine, and in the interaction of the boost and knock control strategies. A controller for boost pressure, integrated with the controls for spark and fuel scheduling, can use common controller inputs (engine speed, throttle position, engine temperatures, and manifold pressure) to control the complete engine with greater stability, improved performance, reduced turbocharger lag, more successful spark knock control, and improved throttle response compared to conventional systems.
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Citation
Wakeman, R. and Wright, D., "Closed Loop Turbocharger Control with Transient Wastegate Functions," SAE Technical Paper 860487, 1986, https://doi.org/10.4271/860487.Also In
References
- Bhinder F.S. “Some Unresolved Problems in the Design of Turbochargers” SAE Paper 840018
- Dertian H.H. Hutchinson T.M. “Turbocharging the 1983 1/2-1984 Ford 2.3L OHC Engine” SAE Paper 840251
- Nekut A. Callaway R. Keunhl C. “A Fast Response Turbocharging System” SAE Paper 830125