Architecture

Overview

True Robust Control is implemented on top of the
AITL (Adaptive Intelligent Three-Layer) architecture.

Each layer has a clearly separated responsibility.

Layer Responsibilities

Inner Loop — Control Execution

• PID / H∞ controller
• Real-time stability and performance
• No reasoning, no adaptation

Middle Layer — FSM (Supervision)

• Monitors degradation indicators
• Manages operational states
• Triggers design adaptation events

FSM answers:

What mode should the system be in now?

Outer Layer — LLM (Design Intelligence)

• Interprets degradation meaning
• Decides which design lever to move
• Generates redesign policies, not numbers

LLM answers:

What should be changed, and why?

Robust Monitor (Cross-Layer)

• Evaluates uncertainty in frequency domains
• Outputs scalar health indicators
• Feeds FSM decision logic

Architectural Philosophy

• Controllers stabilize
• FSM decides
• LLM designs
• Monitors observe

No layer violates another’s responsibility.