In making our products more attractive, it is becoming increasingly important to balance multiple areas of performance, such as fuel economy, emissions and drivability. Customer expectations and government legislations, to protect global environment, strongly increase the work complexity of auto firms in order to release high quality and eco-friendly vehicles. The balancing between several target is becoming a key factor in the car design: From recent emissions limitations, engine cold start (at the beginning of driving cycle) plays a major role in the total amount of pollutants. Especially, achievements of HC limitations are a big challenge for vehicles with a conventional spark ignition engine. Several options are studied by auto firms such as (but not limited): These options need to be evaluated from auto firms with respect to the final cost, development time, complexity, reliability, etc… For this kind of compromise, system simulation physical model based becomes helpful. This paper describes about the development of a multi attribute full vehicle model and a new approach to find the best compromise between performance, fuel consumption and emissions.
Multi Attribute Optimization: Fuel Consumption, Emissions and Driveability
Sae International Journal of Passenger Cars. Mechanical Systems
Sae Int. J. Passeng. Cars - Mech. Syst
SAE 2012 World Congress & Exhibition ; 2012
Sae International Journal of Passenger Cars - Mechanical Systems ; 5 , 1 ; 688-701
2012-04-16
14 pages
Conference paper
English
Multi Attribute Optimization: Fuel Consumption, Emissions and Driveability
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