Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 24, Problem 1RQ
Describe the difference between an open- and a closed-loop operation.
Expert Solution & Answer
To determine
The difference between an open- and a closed-loop operation.
Answer to Problem 1RQ
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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Chapter 24 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
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