Derivative Gain
O2 Control Derivative Gain
Axis selection and changing values
This table is intended to be used with TPS or MAP set as the first/x (left to right) axis, and RPM as the second/y (bottom to top) axis, though both axes are user configurable to use any ECU channel. Changing the axis values can be accomplished by pressing F3 when the table is selected, then either editing an existing value or adding a new value. Note that if you edit an axis site value, the overall table values will be adjusted so that the shape of the table is unchanged.
Tuning
Using layman's terms, the Derivative Gain adjusts how aggressive the Proportional is when it is approaching the Target. Increasing this can help prevent overshooting when the Proportional is set high but it can also prevent ever reaching the target. Derivative is typically zero for Narrowband control as overshooting the target is often desired, and will also be zero or very small numbers for Wideband control and is used to slow down overshooting the target if the Proportional has been aggressively tuned.
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