摘要 | 第1-5页 |
Abstract | 第5-9页 |
1 Research background | 第9-26页 |
·Fundamentals of turbocharging | 第9-15页 |
·Supercharging | 第9页 |
·Turbocharging | 第9-12页 |
·Advantages and disadvantages of turbocharging | 第12-13页 |
·Place of the turbocharger in the engine | 第13-14页 |
·History of the development of turbocharging | 第14-15页 |
·Traditional turbocharger performance map generation | 第15-20页 |
·Compressor performance map | 第16-17页 |
·Turbine performance map | 第17页 |
·Turbine efficiency definition | 第17-19页 |
·Turbocharger performance simulation | 第19-20页 |
·Engine simulation model | 第20-23页 |
·One-dimensional engine simulation | 第20-22页 |
·Turbocharger model | 第22页 |
·Piping model | 第22-23页 |
·Combustion model | 第23页 |
·Turbocharger friction model | 第23页 |
·Calibration work | 第23-26页 |
·Calibration is necessary | 第23页 |
·What are the coefficients to be calibrated? | 第23-25页 |
·Calibration sequence | 第25-26页 |
2 Turbo matching and turbo system integration | 第26-41页 |
·The traditional map generation | 第26-29页 |
·Problems in the traditional map generation | 第26-28页 |
·Objective | 第28-29页 |
·The through-flow model | 第29-35页 |
·Introduction about the through-flow model | 第29-30页 |
·Compressor through-flow model | 第30-33页 |
·Turbine through-flow model | 第33-35页 |
·Development of a new map generation method | 第35-41页 |
·Objective | 第35页 |
·Development steps | 第35-36页 |
·Calibration of the semi-empirical correlation models | 第36-38页 |
·Exemple of correlation model calibration | 第38-39页 |
·Results | 第39-41页 |
3 Turbocharged engine through-flow simulation platform | 第41-59页 |
·Problem of the traditional engine simulation method | 第41页 |
·Through-flow engine simulation method | 第41-43页 |
·Parameter exchange between the engine model and the trubine through-flow model | 第43-44页 |
·Parameter exchange between the engine model and the compressor through-flow model | 第44-48页 |
·The iterative calculation | 第44-45页 |
·Estimation of the mass flow rate | 第45-48页 |
·User defined functions in GT-Power | 第48-49页 |
·Simulation calculation improvements | 第49-57页 |
·Compressor outlet pressure difference criterium | 第49页 |
·Influence of the turbocharger initial rotational speed | 第49页 |
·First cycles of the simulation | 第49-50页 |
·Calculation time improvement inside a cycle | 第50-51页 |
·Calculation time improvement between cycles | 第51-52页 |
·Calculation time improvement of the compressor side | 第52-53页 |
·Improvement of compressor mass flow convergence | 第53页 |
·Non convergence problem in the compressor side | 第53-54页 |
·Calculation problems in the turbine side | 第54-55页 |
·Interpolation method inside a non coupled cycle | 第55页 |
·Extrapolation method inside a coupled cycle | 第55-57页 |
·Turbocharger scaling for matching work | 第57-59页 |
4 Modeling for gasoline engine turbo system integration | 第59-95页 |
·Turbocharged gasoline engine model | 第59-60页 |
·Non coupled simulations | 第60-61页 |
·Parameter study of the “between cycle modulo”value | 第61-67页 |
·Parameter study of the “inside cycle modulo”value | 第67-79页 |
·Parameter study of the “criterium”value | 第79-84页 |
·Interpolation method in a non coupled calculation | 第84-87页 |
·Extrapolation method in a coupled calculation | 第87-89页 |
·Comparison with similar research work | 第89-90页 |
·Comparison between MAP based/through-flow simulations | 第90-93页 |
·Turbocharger scaling for matching work | 第93-95页 |
5 Conclusion and future works | 第95-98页 |
·Conclusion | 第95-96页 |
·Future works | 第96-98页 |
References | 第98-103页 |
致谢 | 第103-104页 |
Resume | 第104页 |