How to calculate 1.5 order wheel torque fluctuation value ?

[Chethanks]

I have the raw data in .csv file which has Engine speed, wheel torque value and main shaft speed (Please refer to below image - raw data_screen shot)

Raw data Screen shot.JPG

I have to find the logic for the above raw data, to get 1.5 order wheel torque value, which is close to resulted value as attached (Result_1.5 order torque value as shown below).

Result_1.5 order torque value.JPG


I am working on this, I request all members of research gate forum to help me on this to create a logic/formula.

If the above information is not clear enough, please ask me

Many thanks,
CKS

[Chethanks]

I read about FFT, but dont know how I cam Implement it as per my requirement. Can you give me any suggestions ?

[Chethanks]

Sorry, I don't know the meaning of OP.

The two screen shots I have attached,

First Image: Raw data (3 cylinder mode, wheel torque fluctuation data)
Second Image: The above raw data has been processed, and provides 1.5 order wheel torque value

In order to process the raw data, Some calculations are required, to get the result close/equal to 1.5 order value ( as attached in results_1.5_order image).

Basically, using raw data (wheel torque, engine speed, main shaft speed) I have to get the 1.5 order value of wheel torque value.



Many thanks,
CKS

[Chethanks]

I am ready to upload two CSV files: 1. raw data file and the second file- 1.5 order wheel torque data both has around 12000 rows and 4 columns.

I am not able to upload these CSV files. Is there any way that I can send the files.

Sorry guys, I want to clear you all. I am not in connect with any forums by name research gate. I am hearing this first time.


Trust me,
CKS