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1、Vehicles Development A multi domain CAE analysis task E Loibner AVL List GmbH engelbert loibner 11 2007 Page 2 11 2007 Page 3 Realization Concept System Design Target Definition CRUISE Vehicle System Simulation In Vehicle Test Component Test Integration Test OfficeRealtime ONE Powertrain Model 11 20
2、07 Page 4 Vehicle System Target Definition Target Definition HYBRID CONTROL TARGET SPEC S FOR HYBRID CONTROL TARGET REACHED YES NO YES CAL OF ENERGY DISTRIBUTION MODELLING SIMULATION NOSIMULATED VALUES CATALOG VALUES Evaluation of actual generation Investigation of energy distribution Estimation of
3、hybrid potential 11 2007 Page 5 Tasks in Target Definition Phase Evaluation of actual generation Investigation of energy distribution Estimation of hybrid potential Modeling of standard concept Benchmarking Using data from Realized vehicle Catalog test reports Simulating energy balance for different
4、 driving test cycles UDC FTP75 Artemis Calculating the potential of hybridization based on simulated energy distribution like Regeneration potential using cumulated brake energy Boosting estimated from acceleration phases Defining target values for HEV 11 2007 Page 6 Fuel Consumption Cycle Calculati
5、on Influence of vehicle parameters vehicle weight wheels final drive etc on expected FC and emissions Influence of powertrain topology manual vs automated transmission auxiliaries hybrids etc Optimization of powertrain Results are limited by the steady state maps of the engine Task description Input
6、 Output Input ModelAnalysisResults 11 2007 Page 7 Performance Calculation Vehicle performance acceleration elasticity top speed gradability etc Influence of vehicle parameters vehicle weight wheels final drive etc Influence of powertrain topology manual vs automated transmission auxiliaries hybrids
7、etc Optimization of powertrain operation strategy gear shifting program hybrid control Development value insight Prediction of powertrain performance based on measured or predicted first order dynamic full load characteristics within specific performance tasks WOT 0 100km h elasticity maximum accele
8、ration Results are limited by the dynamic description of the propulsion system s Task description Input Output Input ModelAnalysisResults 11 2007 Page 8 Vehicle Modeling System Calibration interface to adapt change optimize the system behavior within the regular operation range Component variation D
9、evelopment value insight Modeling of an existing vehicle and powertrain based on existing system data publications test bed chassis dyno The model may be used for steady state and or dynamic system analysis driveability benchmarking enhanced function development Task description Input Output Input M
10、odelAnalysisResults Input Energy GEN752 6 kJ 807 4 kJ 696 8 kJ Output Energy BAT Input Energy MOT Output Energy GEN Input Energy BAT Output Energy MOT 59 75 kJ 791 5 kJ 922 65 kJ CO2Emission Performance 104 g 105 g 11 6 sec 11 8 sec Simulation Measurement 11 2007 Page 9 Hybrid Potential Estimator In
11、fluence of topology component performance basic control functions and strategy on fuel consumption and emission Development value insight Estimation of the fuel consumption and emissions potential of different hybrid topologies based on a CRUISE simulation of a conventional baseline vehicle Input co
12、nventional vehicle model driving and duty cycles Output prediction of fuel consumption and emissions Task description Input Output Input ModelAnalysisResults Best BSFC Best BSNOx 0 10 20 30 40 50 60 70 80 90 100 FuelConsumptionPotential Base Vehicle HEV0 BSG HEV1 CSG1 HEV2 CSG2 HEV3 TISG HEV4 TTR HE
13、V5 PS HEV6 SH Ideal Hybrid Strategy NOx optimised 11 2007 Page 10 Vehicle System Concept System decision Components decision Control strategy decision Concept SYSTEM HYBRID VEHICLE CONCEPTS SIMULATION LOAD PROFILES FOR COMPONENTS COMPONENTS FUNCTIONS 11 2007 Page 11 Tasks in Vehicle System Concept P
14、hase System decision Components decision Control strategy decision Analysis Basis Defined target values for fuel economy performance Analysis of different vehicle concepts Consideration of newest transmission engine etc technologies Defining the most promising topology Selection of best combination
15、of mechanical and electrical components using component variation and matrix calculation Developing first prototype of the hybrid control functions 30 20 10 0 GDI Diesel Hybrid Case 00 DCP DVVL 5AT Case 02 DCP 4AT EPS HIALT Case 04 DCP CVT EPS HIALT Case 13 1DCP TURB GDIS 6AMT Case 03 DCP 5AT EPS HI
16、ALT Case 01 DCP 6AT Case 13 2DCP TURB GDIS 6AMT Case 05 DCP DVVL 6AMT EPS Case 06 GHCCI 6AMT EPS HIAL Case 11DCP CVVL CVT AGGH Case 14DCP CVVL 6AMT 12VS Case 10 DAMM 6AMT 42VMA E Case 07 DCP TURB GDIS 6AMT Case 09 DCP CVVL CVT MODH Case 08 GHCCI 6AMT 42VMA E Case 12HSDI CVT AGGHYB EP 11 2007 Page 12 Modelling of advanced Powertrains Influence of the powertrain components the component functionality and the system functionality on drivability aspects Definition of required functionalities for com
