CAGE User's Guide    

Setting Values of Other Variables

Typically the models that you use to perform a tradeoff calibration have many inputs. When calibrating a table of just one input, you need to set values for the other inputs.

Setting Values for Individual Operating Points

To set values for inputs at individual operating points:

  1. Highlight the operating point in the lookup table.
  2. Use the edit boxes to specify the values of the other variables.

In the preceding example, the spark table is selected (the SPK graph is colored green). You have to specify the values of AFR (A) and EGR (E) to be used:

  1. Select the spark table from the branch menu.
  2. Click in the edit box for A and set its value to 14.3.
  3. Click in the edit box for E and set its value to 0.

Setting Values for All Operating Points

For example, if you are using a tradeoff to calibrate a table for spark angle, you might want to set the initial values for tables of air-fuel ratio (AFR) and exhaust gas recycling (EGR).

To set constant values for all the operating points of one table:

  1. Highlight the table in the branch display.
  2. Select one operating point in the table.
  3. Enter the value of the cell.
  1. This automatically adds this cell to the extrapolation mask.

  1. Click  to extrapolate over the entire table.

This fills the table with the value of the one cell.


  Calibrating Tables in a Tradeoff Calibration Determining a Value at a Specific Operating Point