CAGE User's Guide

Initializing the Feature

For example, a simple feature for maximum brake torque (MBT) consists of the following tables:

• A speed (N), load (L) table
• A table to account for the behavior of air-fuel ratio (A)

Initializing this feature sets the values of the normalizers for speed, load, and AFR over the range of each variable and put specified values into each cell of the two tables.

A table that is already initialized provides a useful starting point for a more detailed calibration.

To initialize the feature:

1. Click . This opens the Feature Initialization Options dialog box, as shown.

   

2. Enter the ranges for the breakpoints in your normalizers. In the preceding example, enter the following breakpoint ranges:
• L has range 0.2 0.811.
• N has range 750 6500.
• A has range 11 17.6.
3. Enter the initial table value for each cell in each table. Above, enter the cell values as
• Table_NL has initial value 0.
• Fn_A has initial value 0.
4. Click OK.

Note    The default values in this dialog box are taken from the variable dictionary. If you clear any Enable box, the associated table or normalizer is left unchanged.

Calibrating the Feature Node

Filling the Feature