Driving Style Assessment System for Agricultural Tractors: Design and Experimental Validation
Round 1
Reviewer 1 Report
- The first appearance of all abbreviations shall be accompanied by full spelling. Even if it has been widely known, such as GPS, can and so on. In addition, pay attention to the format of the article, and the chart should meet the specifications.
- ‘Related work’and ‘Main contributions’, the research status, research content and significance stated in these two chapters are recommended to be condensed and merged with the ‘Introduction’, and the language of other chapters should also be refined. Unrefined expression makes the article read like instruction manual.
3.In this paper, the key performance indicators (KPI) of the driving style assessment system are constructed using fewer indicators to achieve industrial applications (driving safety, fuel consumption and operator comfort). However, excessive simplification results in one-sidedness of the assessment system. For example, the operator comfort is composed of many factors, especially the factor weight of the machine itself is greater, and the weight of driving style still needs to be studied. Therefore, in general, the three indicators used by the author to construct the driving style assessment system are very interesting, but lack of research basis.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Driving style is one of the current research hot-spots, and its results are valuable and can be used in performance improvement or intelligent driving system development. There are plenty of driving style research for on road vehicle, but the researches on tractors is still rare. In this manuscript, the authors try to establish a comprehensive evaluator including safety, economy and comfort, and access the driving styles. It is an interesting topic. However, I have some confusions.
1.What’s the specific contribution of the proposed method for tractors comparing to those for on road vehicles? As no traffic problems exist, the method seems more simple than on road ones, and provides no specific solutions for terrain situations or off road working conditions.
2.I was doubting if the chosen driving states are adequate for driving style assessment. For instances, the same inputs of drivers will result in different acceleration for tractors with different payloads. For the driving style evaluation, besides of the velocity and acceleration, why the signals of steering angle, accelerator and brake pedal are not used?
3.No detailed descriptions of the test conditions, and no plenty of tests for different test conditions. For instances, tests for different payloads are not carried out. The basic descriptions of the roughness, slopes and degrees of the softness of the test field are not given.
4.In figure 3, what is the meaning of ideal velocity? Is it ‘ideal’ for all kinds of terrains? I failed to find the descriptions for Figure 3 and Figure 4. Please check the manuscript and add descriptions for each figure.
5.How to understand the unsafe region in figure 7? Does the unsafe means side slip, rollover or loss the trafficbility? In fact, the acceleration values of the borders in figures 7 is not large. Does the borders related to the characteristics of the tractors and roads such as mass, height of CG, wheel base, radius of wheels, slopes, adhesion, and so on?
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Accept
Reviewer 2 Report
Thanks to the author's careful revision of the manuscript, I think most of my confusions have been resolved and can be published.
I still recommend that the authors consider more factors of drivers, tractors and terrains, and expand the applications and scenario in their future research.
