A Vibration Analysis for the Evaluation of Fuel Rail Pressure and Mass Air Flow Sensors on a Diesel Engine: Strategies for Predictive Maintenance

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

In this paper, the analysis of vibration of a compression ignition engine (CIE), specifically examining potential failures in the Fuel Rail Pressure (FRP) and Mass Air Flow (MAF) sensors, were studied. The research proposes a method to validate the correct functioning of these sensors by analysing vibration signals from the engine. The results show that the proposal provides a basis for an efficient predictive maintenance strategy for the MEC engine. Early detection of FRP and MAF sensor problems through vibration analysis improves engine performance and reliability, minimizing downtime and repair costs.

Some interesting conclusions are obtained and the review comments are list in the following contents.

1. More comparisons under different conditions for vibration analysis should be provided.

2. Figure 9 should be provided clearly.

 

3. Experimental test should also be considered to verify the theoretical analysis results.

Comments on the Quality of English Language

Minor editing of English language required

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

The article describes research into the possibilities of FRP and MAF sensor diagnostics.

The research carried out is appropriately scientifically processed. To increase the quality of the article, I recommend the authors:

- describe the definition of amplitude in the introduction

- increase the quality of images no. 2, 3, 4 and 9

- are unreadable - supplement the marking of the axes in graphs 5, 6, 7, 8 and 10, 11, 12 and 13

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

This research paper presents a methodology to verify that these sensors are working properly by analyzing vibration signals from the engine. The case study also demonstrates the feasibility of the method, but the following issues need to be addressed before acceptance.

 

Point 1: All the diagrams are not readable, especially Figure 3. It is suggested to improve the resolutions of the figures in the current manuscript.

Point 2: It appears that there are errors in the labeling of lines 303 to 305.

Point 3: There are not enough innovative points in the algorithm.

Point 4: It is suggested to include an introduction in the paper that outlines the fundamental principles of design methods.

Point 5: The "RESULT" chapter, in its current form, appears unnecessarily convoluted. By judiciously incorporating tables, the content can be effectively streamlined, enhancing readability and comprehension.

Comments on the Quality of English Language

English language is fine. 

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Round 2

Reviewer 3 Report

Comments and Suggestions for Authors

Authors have made improvements. I have no further questions and recommend the acceptance. 

Comments on the Quality of English Language

There is no specific issue apart from a final proofreading.