Calculation Rules for Prognosis

Calibration menu > Prognosis > Calculation Rules

To adjust the values of model outputs to known parameters and to certain driving cycles, conversions and weightings are performed here.

The Calculation Rules for Prognosis window contains the following elements:

ClosedFile

  • Load

    Opens the Load Prognosis Calculation Rule from ini window. Here you can load an existing template as a configuration file (Load > Template) or a created configuration (Load > Settings (* .ini)).

  • Save Settings (*.ini)

    Opens the Save Configuration As window. This allows you to save a created configuration in a file (*.ini) and use it later on again (Load > Settings (*.ini)).

  • Apply

    Applies the current configuration for the model prediction.

  • OP Weights

    Opens the Prognosis OP-Weights window.

  • Show Results

    Opens the Prognosis Results window.

  • Quit

    Closes the Calculation Rules for Prognosis window.

ClosedOP List Based and Driving Cycle Based

    Note  

    The Driving Cycle Based tab is only useful if you have previously imported a cycle trajectory in the Driving Cycles window (Calibration > Driving Cycles).

    Both tabs contain similar columns and buttons.

    • Name

      The name of the converted parameter

    • Unit

      The unit of the prognosis value.

    • S Weight_i/sum(Weight)x

      Normalization of the weighting (the individual weightings are edited with Weights)

    • OP List

      Note  

      Only available in the OP List Based tab.

      If several lists of operating points were created (see Operating Points Manager), these lists can be selected in the OP List drop-down lists.

    • Cycle

      Note  

      Only available in the Driving Cycle Based tab.

      If several lists with driving cycle data were created (see Driving Cycle Manager), these lists can be selected in the Cycle drop-down lists.

    • Output

      The output for which the prognosis shall be calculated. Enables the "inversion" of the result (e.g. to convert from l/100 km to the "inverse" unit miles/gallon).

    • Factor

      The conversion factor to be used. See also Closedexample 1 and Closedexample 2.

      Example 1: The conversion factor for pollutant emissions measured in the European driving cycle in g/h to g/km is 0.02961:

      [g/h] divided by 3600 → [g/s], multiplied by 1180 s cycle duration and divided by 11.07 km cycle length → [g/km]

      Example 2: In this tutorial, the conversion factor for fuel consumption measured in kg/h to l/100 km is 3.567:

      [kg/h] divided by 3600 → [kg/s], multiplied by1180 s cycle duration and divided by 11.07 km cycle length → [kg/km], multiplied by 100 → [kg/100 km], divided by fuel density (0.83 kg/l) → [l/100km]

    • OP1 Factor / OP2 Factor

      If multiplication with the speed or load is necessary at every operating point for a conversion, this can be selected here. This is necessary, for example, when converting injection quantity/injection process (in g) to a consumption rate (in l/100 km).

    • Results

      Opens the Prognosis Results window.

    • Weights

      Note  

      Only available in the OP List Based tab.

      Opens the Prognosis OP-Weights window.

OK

Applies your settings and closes the window.

Apply

Applies your settings, but does not close the window.

Cancel

Discards your settings and closes the window.