Cycle-Based Global Optimization

For most combustion engines of, for example, cars and trucks, you must be able to prove that legally prescribed thresholds for emissions are adhered to (e.g. in accordance with the Euro 6 standard) in various test cycles. The application’s task is thus both to adhere to these thresholds and to attain the best possible consumption rates while adhering to any other constraints such as thresholds for pressure and temperature.

Some driving cycles are prescribed by the legislator as a list of stationary operating points; others are defined as transient driving cycles via speed and load. To be able to make reliable predictions about dynamic results from stationary information, it is common practice to reduce the transient driving cycles to a list of operating points that are as representative as possible.

This section of the tutorial shows how to perform cycle-based global optimization with ASCMO-STATIC, using the model of a diesel engine as an example.