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INGAS Sub Project A3 „Boosted Lean Burn Gas Engine“ Review Meeting 07/04/2011 Brussels

INGAS Sub Project A3 „Boosted Lean Burn Gas Engine“ Review Meeting 07/04/2011 Brussels. RWTH, Martin Müther. Face to face meeting SP A3 – Brussels, 7 April 2011. 2. Review meeting – Brussels, April 2011 MM allocation RWTH. Review meeting – Brussels, April 2011 MM allocation RWTH.

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INGAS Sub Project A3 „Boosted Lean Burn Gas Engine“ Review Meeting 07/04/2011 Brussels

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  1. INGAS Sub Project A3 „Boosted Lean Burn Gas Engine“ Review Meeting 07/04/2011 Brussels RWTH, Martin Müther

  2. Face to face meeting SP A3 – Brussels, 7 April 2011 2

  3. Review meeting – Brussels, April 2011MM allocation RWTH

  4. Review meeting – Brussels, April 2011MM allocation RWTH

  5. Review meeting – Brussels, April 2011

  6. Review meeting – Brussels, April 2011 Performance prediction referenced to 1.9 l (Z19DTH)

  7. Review meeting – Brussels, April 2011

  8. Basic Diesel engine (Z19DTH): CAD-Data  Spark plug application  Analysis of CAD-Data

  9. Review meeting – Brussels, April 2011

  10. Review meeting – Brussels, April 2011

  11. Review meeting – Brussels, April 2011

  12. HPT-BP HPC-BP LPT-WG Review meeting – Brussels, April 2011 serial / serial System specific actuators • High-Pressure-Turbine bypass • low speeds -> controlled wastegate function for High Pressure Turbine • from mid speed on complete mass flow bypassed toward Low Pressure Turbine • High-Pressure-Compressor bypass • back pressure valve • on/off bypass (not active) • Low-Pressure-Turbine wastegate • conventional function of turbine control

  13. Review meeting – Brussels, April 2011

  14. Piston design (CR=13CR=12 (Final)) IMG_2592.jpg K:\B_Technical_Status\04_Engine\044_Kolben\Fotos\20090605 IMG_0004.jpg K:\B_Technical_Status\04_Engine\044_Kolben\Fotos\20100601 CR=13.0 CR=12.0 • Increased bowl-diameter (‚open bowl‘) • Increased pocket-width • Unchanged Squish Height: 0.83 mm Reduced squish area share  Machining at FEV

  15. Review meeting – Brussels, April 2011

  16. MCE-TestingDefinition of Operation Points Steady-State-Replacement-Test (NEDC) Reference: ZAFIRA (1.9 CDTI) 6 Speed Gearbox BMEP vs. Eng.-Speed S Idle: 326 s S Push: 138 s S Part Load: 716 s Additional Points MAP-Completion Highest Relevance Breakdown (Modes) Urban: 3x Extra-Urban: 1x

  17. Engine Testing / Procedure Hypercube  3-dimensional experiment space (DoE-Methodic) Operation point (Mode 4): n=1754 rpm BMEP=6.2 bar • Variables: • Ignition Timing (ZZP) • Rel. A/F-Ratio (LAM; l) • End of NG-Injection (EOI) Due to the significant impact of the NG-injection-window on engine behaviour, this parameter has been included in the DoE-Testing ! ZZP  Hypercube-Parametrisation is Mode-specific ! EOI LAM

  18. MCE-TestingMAP-Generation / Procedure • Setup of DoE-Modell for each defined operation pointconsidering operation limits • Stationary MCE-Testing ( DoE-Parameterisation) • DoE-Analysis  Modell-Calculation / Generation of functionalities • Engine MAP-Generation assuming different szenarios • TExhaust > Limit value (presetting) • BSFC, NOx, HC min. • Ignition Timing (presetting) • … • Projection on cycle (i.e. NEDC) (Presetting: Vehicle & gear box) Testing Calculation (Weighted) Combination possible

  19. Review meeting – Brussels, April 2011 BACKUP  Slides concerning documentation of activities

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