WLTP – NEDC Correlation Exercise AVL Cruise Conventional Model Template Munich 25 July 2014 Stefanos.Tsiakmakis@jrc.ec.europa.eu Georgios.Fontaras@jrc.ec.europa.eu Biagio.ciuffo@jrc.ec.europa.eu

Conventional Model Template The model structure is depicted on the right Based on the “Man FWD” Cruise default model “FSS Bogacki / Shapine+” is chosen as the simulation method Additional features: Start Stop Thermal Model GB Temperature Calculation Electric System Calculation Mechanical Consumers

Conventional Model Template

Application for Fiat 1.4 Fire Evo2 MT Euro6 Results Summary   NEDC Hot NEDC Cold WLTP Hot WLTP Cold ERMES NEDC ERMES WLTP Correlation Velocity 99.9% 99.8% 99.5% RPM 96.7% 96.9% 96.6% 94.8% 95.7% 95.8% FC 96.2% 95.5% 85.1% 93.4% 94.5% Cum. FC 100% Torque 90.1% 88.6% 68.9% 88.8% 91.2% Temperature - 98.8% Summary On 5% Limit: 87.5% 90.6% 98.1% 99.1% 85.5% Diff. on CFC 0.7% -0.7% 0.3% -0.3% 3.6% -1.2% NEDC Hot & NEDC Cold were used for the calibration of the model, while the other cycles were used for validation purposes On the validation, no change was made to the model apart from the road loads, the cycle inertia weight and the initial temperature

Application for Fiat 1.4 Fire Evo2 MT Euro6 NEDC Cold Cycle – Cumulative FC On 5% Limit: 90.6% Correlation: 100% Diff. on CFC: -0.7% Velocity Corr.: 99.9%

Application for Fiat 1.4 Fire Evo2 MT Euro6 NEDC Cold Cycle – Engine Speed Correlation: 96.9%

Application for Fiat 1.4 Fire Evo2 MT Euro6 NEDC Cold Cycle – Instantaneous FC Correlation: 95.5%

Application for Fiat 1.4 Fire Evo2 MT Euro6 NEDC Cold Cycle – Temperature Correlation: 98.8%

Application for Fiat 1.4 Fire Evo2 MT Euro6 NEDC Cold Cycle – Gearbox Temperature Correlation: 99.6%

Discussion A template model is considered necessary in order to: Allow a clear and coherent input data collection form for all OEMs, Finalize the list of inputs which should be used for the SA, Allow the finalization of the meta-models development, which should take into account all related sub-models The template model should be applied to other vehicles and compared with the measurements, for further validation JRC, along with LAT, should collaborate on the previous point Additional components may be added (AT – controllers ??)