Anti-Jerk Optimal Preview Control Strategy to Enhance Performance of Active and Semi-Active Suspension Systems

Round 1

Reviewer 1 Report

The paper hasn't addressedd several previous comments: 

• More state-of-the-art semi-active suspension design papers could be cited.
• How is it possible to measure jerk, regarding noise ? Is the jerk measured or calculated?  
• Before Eq. 1 authors state basically v_max=v_min+v_max.  This is correct only if v_min=0.  
• In Eq. 6, what is x? 
• After Eq. 12 the vehicle speed V is assumed to be 20 m/s. It is still not described, why do authors assume this constant velocity for the design. Does the proposed controller work for other velocities? 
• Authors used matlab simulation for the verification of the proposed method. Is it planned to be evaluated in a high fidelity simulation environment, or hardware-in-the-loop? 

Author Response

Dear Reviewer,

We would like to extend our warm thanks to the reviewer for taking time to thoroughly and give us very useful comments for the second time. These, indeed, helped us a lot to improve the paper. Here are the point-wise details of revisions. The attached documents include both the previous and current response to the comments.

Regards

Iljoong Youn

 

Author Response File: Author Response.pdf

Reviewer 2 Report

Innovativeness is still not well emphasized using recent literature and other advanced control methods, these increased contrast results should be compared with other methods, such as LQR, robust control.

Author Response

Dear Reviewer,

We would like to extend our warm thanks to the reviewer for taking time to thoroughly and give us very useful comments for the second time. These, indeed, helped us a lot to improve the paper. Here are the point-wise details of revisions. The attached documents include both the previous and current response to the comments.

Regards

Iljoong Youn

 

Author Response File: Author Response.pdf

Reviewer 3 Report

The paper highlights the advantages of semi-active suspension compared to active suspension. The damping coefficient was varied using a jerk controller. 
The authors present the performance of the active and semi-active suspension systems using the Matlab program.
However, I will mention on some aspects that must be improved/modified:

1. The sentence in lines 56-59 should be reworded.
2. The semi-active suspension system should be better described.
3. In relation 6, what does T represent?
4. In relation 6 is not the first derivative z₁. Is correct?
5. Relation 7 more needs to be explained.
6. In relation 11, what does b₁ represent?
7. In relation 21, ”.” should be ”·”
8. The figures should be much more discussed.
9. The conclusions should be more detailed.

, 

Author Response

Dear Reviewer,

We would like to extend our warm thanks to the reviewer for taking time to thoroughly and give us very useful comments for the second time. These, indeed, helped us a lot to improve the paper. Here are the point-wise details of revisions. The attached documents include both the previous and current response to the comments.

Regards

Iljoong Youn

 

Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

This article can be weakly accepted