Scheduled Gain

Block-library: DUBSI

The Scheduled Gain block (which is available in left-to-right and right-to-left variants) makes it possible to implement non-constant gains in Simulink systems. The block can be applied for the implementation of gain-scheduling functions for control systems; hence its name.

The second input signal to this block is multiplied with a gain-factor that is a function of the first input signal. If these inputs are called u₁ and u₂, and the output is called y, the Scheduled Gain block is represented by the following equation:

where K is the gain function:

The user must specify the gain function f  in the Mask dialog window, which appears after double-clicking the block.

Notice that both u₁ and u₂ may be either scalar or vector signals. Obviously, if u₁ is a vector, K can depend on more than one variable and f  becomes a vector function.