Dr. Hubert FRIEDL-AVL 

 

 

 

Gasoline Powertrain Technology Trends for highest Efficiency and ultra-low Emission


Abstract

Whereas in the past decade, the CO2 reduction was the major driver for technology development with passenger car engines, especially after the “Dieselgate” an “Extended Emission Compliance” including Real Drive Emissions (RDE) is taking significant impact on future (powertrain development) technology routes. The RDE legislation initially was targeted primarily towards the Diesel-NOx and the Gasoline-PN emissions, the requirements for meeting the forthcoming CO2 targets to be applied globally still have highest priority.

 

To comply with these future CO2 and emission legislations, increasingly complex technologies and technology combinations have to be applied for gasoline powertrain. Mainly due to emission requirements the trend from “Extreme Downsizing” nowadays goes more towards “Rightsizing”, which was already initiated by modern fuel economy technology applications like Miller or Atkinson Cycle. On a powertrain systems perspective, Hybridization gives add-on benefits, however, might also cannibalize the benefits of other ICE technology features such as variable compression ratio (VCR). In view of highly cost effective CO2 reduction, low cost Hybrid solutions like 48V systems will gain high attractivity.

 

From a cost / CO2 reduction perspective, especially CNG is most attractive technology approach to reduce CO2 and pollutants simultaneously. With appropriate infrastructure, CNG is highly sustainable long-term solution.

 

To balance RDE, CO2 requirements and cost, this will become one of the most challenging engineering tasks and will require new development and validation approaches. Thus, RDE will not only have a significant impact on powertrain technology, but might also initiate a paradigm shift in powertrain development.

 

 

   
   

 






Dr Apostolos Pesyridis 

Associate Professor, Brunel University London

  

Challenges and Opportunities for Future Internal Combustion Engines with a Focus on Boosting and Energy Recovery



Contents

1. Introduction
2. Core challenges for combustion engines
Emissions Compliance (global, local)
3. Electrification
4. Future Internal Combustion Engine technological options
High Specific Power Engines (downsizing, downspeeding, right-sizing)
5. Cycles and Strokes (Split cycle, Miller/Atkinson etc)
6. Fuels
7. Conventional ICE, hybrid and Full Electric powertrain considerations
8. Opportunities for thermal efficiency improvements
9. Boosting
                                    Electrically Assisted Turbochargers and Superchargers
                                    Variable Geometry Turbochargers
                                   Multi-stage Boosting Systems
10. Waste heat recovery
                             Turbo-compounding
                             Organic Rankine Cycles
                             Thermo-electric
11. Short, medium and longer term technology/R&D priorities
Global
12. Local
13. Conclusions


 

 

 

 

Gareth Owen 

Application Engineering Manager @ Honeywell Transportation Systems

 

 

Emanuele Amicosante 

 

Global Accounts Director @ Honeywell Transportation Systems

Boosting Roadmap for future engines

 

 

 


 Contents

  

Gasoline

Broad Product Portfolio to satisfy all boosting needs in all countries for Gasoline Engines

Latest Generation Wastegate Technology Setting New Performance Standards For New Emissions Regulations

  • VNT Technology Enabling Diesel-Like CO2 Levels
  • New Technology Developments Targeting High Performance and Reduced CO2

  

Diesel

  • Latest Generation Small VNT Technology Enabling Greater Efficiency And Helping Meet RDE/EURO 7 Standards
  • Mid-size VNT Technology Delivering The Efficiency Of A Larger Turbo With A Lower Inertia Turbine
  • Tailored Two-Stage Solutions Combining Optimum Performance, Fuel Efficiency And NOx Reduction

 

Electric Boosting

  • Electric Boosting Solutions And System Integration
  • Ultimate Boosting Performance – More Fun-to-Drive
  • Key Enabler For Upcoming RDE Regulations and CO2 Reduction
  • Model-Based Boosting Control With Software Solutions