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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
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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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Given that an L-shaped member (OAB) can rotate about OA, determine the moment vector created by the force about the line OA at the instant shown in the figure below. OA lies in the xy-plane, and the AB part is vertical. Express your answer as a Cartesian vector.
Chapter 24 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
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