Components of a control system - Introduction 2

In the context of a control system, the major components are the subsystems and the process (also known as plants). These are assembled to fetch the desired result or output as per the performance as per the given input. As highlighted in the Fig. The control systems are concerned to be the easiest form in which the input is a clear depiction of desired outputs. As an example, take in concern an Elevator. Here, when a person standing on 4th floor calls the elevator at first floor presses the button, gets the output as elevator to him that is designed with a system with floor leveling accuracy and speed.

The push received from the 4th floor button of the elevator is the input that results to an output desired. The elevator's performance is depicted through the response curve shown in the figure. The prime performance measures in this regard are: (a) the steady-states error (b) the transient response.

In persistence to the example, the comfort and patience of the passenger are based on transient response. The faster response may lead to sacrifice in the comfort level, whereas the patience level is sacrificed with slower response.

Other than this, the error of steady-states is yet another vital specification of performance. With this convenience and safety are sacrificed to improper working of elevator.

Elevator Response

Examples of Control-System Applications

• Intelligent Systems
• Hardware in the Loop and control in the fundamental Prototyping
• Smart Transportation Systems.
• Drive-by-wire and Driver Assist Systems
• Integration and Utilization of Advanced Hybrid Power trains
• Health Monitoring, Diagnosis  and High Performance of the Real-time Control
• Steering Control of an Automobile
• Idle-Speed Control of an Automobile