Future Potential and Development Methods for High Output Turbocharged Direct Injected Gasoline Engines

Kleeberg, Henning; Tomazic, Dean; Lang, Oliver; Habermann, Knut

doi:10.4271/2006-01-0046

Cited by 41 publications

(20 citation statements)

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“…A esta tendencia del aumento del grado de sobrealimentación de motores, de cada vez menor cilindrada, se le ha acuñado por el término en inglés downsizing, y se ha generalizado en losúltimos veinte años en los impulsores diesel utilizados en vehículos automóviles [22] [72]. Esta misma tendencia también está siendo adoptada desde hace aproximadamente unos cinco años en los motores de ciclo otto [67].…”

Section: Agradecimientosunclassified

Contribución a la Mejora del Margen de Bombeo en Compresores Centrífugos de Sobrealimentación

Lang¹,

Ricardo²

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Section: Agradecimientosunclassified

Contribución a la Mejora del Margen de Bombeo en Compresores Centrífugos de Sobrealimentación

Lang¹,

Ricardo²

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“…This has lead to numerous turbocharged engines being introduced into production, initially in Europe, but now also in the US, with claims of drive cycle fuel economy improvement between 10 and 17% [5][6][7]. Significant research work is continuing in this area with the aim of further fuel economy improvements through either direct efficiency improvements or increased degrees of engine downsizing [8][9][10][11][12][13]. Figure 1 shows the performance levels achieved by GDI and port fuel injection (PFI) downsize engines currently in production.…”

Section: Introductionmentioning

confidence: 99%

Challenges for Increased Efficiency through Gasoline Engine Downsizing

Fraser¹,

Blaxill²,

Lumsden³

et al. 2009

SAE Int. J. Engines

174

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In order to achieve the required future CO 2 reduction targets significant further development of both gasoline and diesel engines is required. One of the main methods to achieve this with the gasoline engine in the short to medium term is through the application of engine downsizing, which has resulted in numerous downsized engines already being brought to production. It is, however, considered that there is still significant further CO 2 reduction potential through continued development of this technology. This paper considers the future development of gasoline engine downsizing in the short to medium term and the various technologies that can be applied to further increase the efficiency of operation. As such this paper covers, among other areas, fundamental engine layout and design, alternative boosting systems, methods of increasing part load efficiency and vehicle modelling, and uses analysis tools and engine test results to show the benefits achievable.

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“…However, injection of the fuel directly into the cylinder is not a guarantee that liquid him problems, including abnormal combus tion, such as pool burning, are not present [7][8][9][10]. Other problems are associated with GDI engines, such as difficulty in controlling stratihed-charge combustion over the required operating range [11,12].…”

Section: Introductionmentioning

confidence: 99%

Multisensing Fuel Injector in Turbocharged Gasoline Direct Injection Engines

Estefanous

Mekhael

Badawy

et al. 2014

Journal of Engineering for Gas Turbines and Power

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Multisensing Fuel Injector in Turbocharged Gasoline Direct Injection EnginesWith the increasingly stringent emissions and fuel economy standards, there is a need to develop new advanced in-cylinder sensing techniques to optimize the operation of the in ternal combustion engine. In addition, reducing the number of on-board sensors needed for proper engine monitoring over the lifetime of the vehicle would reduce the cost and complexity of the electronic system. This paper presents a new technique to enable one engine component, the fuel injector, to perform multiple sensing tasks in addition to its piimaiy task of delivering the fuel into the cylinder. The injector is instrumented within an electric circuit to produce a signal indicative of some injection and combustion pa rameters in electronically controlled spark ignition direct injection (SIDI) engines. The output o f the multisensing fuel injector (MSFI) system can be used as a feedback signal to the engine control unit (ECU) for injection timing control and diagnosis of the injection and combustion processes. A comparison between sensing capabilities o f the multisensing fuel injector and the spark plug-ion sensor under different engine operatingconditions is also included in this study. In addition, the combined use of the ion current signals produced by the MSFI and the spark plug for combustion sensing and control is demonstrated.

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Future Potential and Development Methods for High Output Turbocharged Direct Injected Gasoline Engines

Cited by 41 publications

References 1 publication

Contribución a la Mejora del Margen de Bombeo en Compresores Centrífugos de Sobrealimentación

Contribución a la Mejora del Margen de Bombeo en Compresores Centrífugos de Sobrealimentación

Challenges for Increased Efficiency through Gasoline Engine Downsizing

Multisensing Fuel Injector in Turbocharged Gasoline Direct Injection Engines

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