Research Article

Designing High-Performance Fuzzy Controllers Combining IP Cores and Soft Processors

Figure 16

The FLC has two inputs: Error and Change of error, and one output. The output provides a value of increment/decrement to be used by the integral part of the PD+I controller. The first scale [0.255] are the real MFs bit values definition in the FLC. The second scale [−90, 90], [−180, 180], and [−100, 100] are the operation values for this application. The scale conversion is achieved by the ARM processor.
475894.fig.0016a
(a) Input error
475894.fig.0016b
(b) Change of error
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(c) Output