F O C U S 1 1 Today, the CO2 optimization process must consider the complete vehicle together with a variety of different systems. Peter Schöggl, Head of Business Field Racing and Vehicle, explains the situation: “There’s one program for simulating CO2 emissions, another one for calculating the exhaust gas emissions, a third deals with certain driving characteristics and a fourth, for example, that focuses on noise, vibration and harshness (NVH). Each simulation seeks its own optimum, but without directly taking into account the way they impact each other. But it is in fact these interactions that are critical for the vehicle’s character – the brand’s DNA. With our approach, we combine multiple driving characteristics into a single system, which allows us to deliver better answers to our customers in a shorter period of time.” AVL can simulate and optimize sevaral driving attributes in the context of its balanced CO2 optimization procedure: performance, CO2, fuel consumption, dynamics/agility, costs, drivability, driving comfort, handling and emissions. If a manufacturer intends to lower the CO2 emissions in its existing fleet, the process starts with an in-depth analysis of the individual models. “For measuring and assessing the mentioned attributes in the context of the AVL Global Benchmarking Program, we are provided with a globally unique tool,” explains Erich Ramschak, Lead Engineer, Vehicle Drivability and Simulation Vehicle. “The assessment of the mentioned driving attributes using AVL DRIVE 4.0 is underpinned by a vast variety of individual sub-criteria and physical parameters for further detailed analysis.” The benchmarking process results in a data package, consisting of physical measuring quantities, as well as subjective driving ratings, objectively evaluated with AVL DRIVE. With around 150 vehicles being tested, analyzed and rated each year based on this method, as part of the AVL Global Benchmarking Program, AVL is able to show how these ratings compare to the competition. > AVL offers a networked development solution, permitting the simulation and evaluation of several driving attributes at the same time using the AVL tools DRIVE 4.0 and Vehicle Simulation Model (VSM).
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