How does adaptive control modify a system's operation?

In control theory, adaptive control modifies a system's operation by enabling it to automatically adjust its own performance to achieve an optimal state, even when operating conditions change.12

An adaptive system functions through three inherent principles:1

• Identification: The system continuously monitors its present state or identifies the ongoing process.1
• Decision: It compares current performance against desired or optimum performance criteria and determines the necessary changes.1
• Modification: It initiates specific adjustments to drive the system toward that optimum performance.1

By continuously monitoring variables—such as torque in a machine tool—the system can detect unexpected changes or malfunctions and automatically correct them, for instance by altering feed rates or spindle speeds. This capability allows the system to protect itself from damage and maintain efficiency without requiring manual intervention. In more advanced applications, such as learning control, the system may further modify its operation by developing and utilizing its own mathematical model of the process.21