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attribute engineering COMPLETE VEHICLE CO2 OPTIMIZATION AVL has expanded its core powertrain expertise and now provides the balancing of vehicle CO2 emissions and driving attributes ensuring positive driving experience. Legal requirements have made CO2 fleet emission reduction one of the most pressing issues in the automotive industry. The required optimizations can no longer be achieved by engine or powertrain measures alone. They need to be accompanied or complemented by improvements made to the complete vehicle, and might involve adjustments to the aerodynamics, rolling friction, thermal management, or similar. “To provide our customers with complete CO2-reduction solutions, we have now expanded our core expertise – beyond our long-standing core capabilities in the field of powertrain development – to include the complete vehicle. The areas now added 2 2 F O C U S comprise CO2, performance, fuel consumption, driving comfort, handling, driving dynamics, driveability, NVH, emissions, including costs and weight,” says Peter Schöggl, Vice President, Racing and Vehicle Business Field.. FROM THE CONCEPT PHASE TO IN-VEHICLE VALIDATION Early on in the concept phase of a new vehicle, existing vehicles in the same model range and – in the context of the AVL Global Benchmarking Program – competitor vehicles released to the market are analyzed in close collaboration with the customer. Based on this information, the targets are then defined for the customer’s vehicle that is either to be newly developed or re-designed. The next step is to select possible CO2 saving measures and feed the vehicle data into the vehicle simulation tool AVL VSM (Vehicle Simulation Model), developed by AVL. “The VSM not only allows us to analyze and tune the different modifications, for example the use of tires with optimized rolling resistance, with regard to their potential impact on CO2 emissions,” explaines Mario Oswald, lead engineer of Simulation, “we can additionally represent and assess cross-impact to other vehicle driving attributes.” To be able to estimate the cost of the individual measures, the development and production costs are continuously analyzed for the customer during the simulation phase and saved in a detailed list. Based on the simulation results, suitable packages of measures are highlighted, which, in addition to reducing CO2, also satisfy the peripheral conditions of all the other vehicle driving features, including cost and weight targets. > With the AVL Vehicle Simulation Model (VSM) ten vehicle attributes can be evaluated simultaneously.


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