Week-3 Challenge: ADVISOR Tool
1. For EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, can the vehicle travel for 45 km with FTP drive cycle? Conclude your observations.
For sloving above question we would use ADVISOR TOOL.
The Advisor model path is added to Matlab.Then by giving advisor command the tool starts.The units are kept metric.
The Ev_defaults_in file is loaded after which below screen appears in which we observe the vehicle parameter. The default cargo load is 136kg which is changed to 500 kg. the vechicle is pure ev hence all load is on battery.
The circled part shows the new cargo load 500kg and the calculated mass is 1508 kg.
The next step is to select the FTP drive cycle.By clicking continue soft key the cycle screen gets loaded,which would look as below.
After the FTP cycle gets loaded we observe that the cycle is for 17.77 km, but our requirement is 45km hence the repeatability of cycle is changed from 1 to 2.53 which would take ous to near 45km. Post all changes the simulation is run.The Following results are obtained.
By running the simulation we got some errors regarding the input data feeded that the mass is increased and the no of cycles.
Conculsion:-
The above image shows the errors display which clearly shows that the selected vehicle fails to carry the specified load for 45 km whereas the max distance travelled would be 41.4 km.
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2. In the above case, try changing the battery capacity and repeat the simulation.
With continousion with above simluation.The default vehicle parameter fails to carry as we know the vehicle selected is EV hence only buy increasing the battery capacity we can achive the distance as the load is fixed.
The defaults Value is Pmax 25 KW is now Changed to Pmax 30KW and we get the below results.
From the above results we observe that the distance parameter is achieved i.e it can now travel 47 km but the results shows lots warning which means their are the vehicel is not comfortably working.
To overcome the warning the battery is changed from Pmax 30 kw to 34 kw.
Results:-
Conculsion:-
From the simulation results we can conculed that the battery of Pmax 47 kw easliy satisfy the input condition which can travel upto 47.5 km and the warning section is also nill.As the size of battery is increase it adds 100 kg more to the total mass.
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3. Perform gradeability test with PRIUS_Jpn_defaults_in file
Compare your results in table and conclude.
The toyota prius hybrid vehicle model is as below.
The defaults parameter are kept same and the gradeability test is performed. In this test we are going to keep the time 10 sec constant for all speeds.The speeds 10 mph to 100 mph is incremented by 10 . Therefore we would get 10 different results.
The above the window of gradeability test where we have entered 10mph for 10 sec and all system parameter enabled. The same procedure is carried out from various speed by keeping all parameter same and keep changing the speeds we get the below results.
10 mph
20 mph
30 mph
40 mph
50 mph
60 mph
70 mph
80 mph
90 mph
100 mph
We have performed the gradeability test upto 160 kmph max. The Results are arranged in table format to get better view of analysis which is as below.
Observation & Conculsion :-
As the Speed increases the gradeability decreases with keeping the time constant.