# Describe the difference between an open- and a closed-loop operation.

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

#### Solutions

Chapter
Section
Chapter 24, Problem 1RQ
Textbook Problem

## Describe the difference between an open- and a closed-loop operation.

Expert Solution
To determine

The difference between an open- and a closed-loop operation.

Closed-loop operations work on the principle of feedback. The output from the current operation is used to modify the input for the next operation. The open-loop operation works only on the input. There is no feedback for this open-loop operations.

### Explanation of Solution

Some of the significant differences between an open- and a closed-loop operation are as follows:

 Closed-loop operation Open-loop operation Its basis is the output of the current operation. The feedback from the current output is used to modify the input. Does not have any feedback system. It completely works on the input. Less stable. Mostly stables. Overall cost is high. Overall cost is low. Easy to calibrate. Difficult to calibrate. Examples are refrigerator, Air conditioner, toaster, etc. Examples are automatic washing machine, Traffic light, TV remote, etc. The structure of closed-loop operations are complex and so they are difficult to be implemented. The structure of open-loop operations are simple and so they are easy to be implemented.

Conclusion:

Closed-loop operation works on the feedback i.e. its basis is the output whereas open-loop operation is completely based on the input.

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