Week-3 Challenge: ADVISOR Tool
Offline Batch
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.
Answer:
- The load file is set to 'EV_defaults_in' and the components to motor_controller. The mass is given as 500kg.
- Loading file 'EV_defaults_in in the ADVISOR Tool and the cargo mass input is set as 500kg.
- The 'Drive cycle window' appears by selecting 'CYC_FTP' to the drive cycle.
- the CYC_UDDS is before changing CYC_FTP.
- After changing to CYC_FTP, the waveform is obtained.
- Each FTP drive cycle lasts for a time period of 2.4 sec and a distance of 17.8kmph. In order to verify if the vehicle can travel for 45km, we have to consider the number of cycles to be 4.
- ON clicking RUN. the results are obtained
- The graphs for velocity soc emission and overall ratio are displayed.
Conclusion: Hence, for EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, the vehicle can travel for 45 km with FTP drive cycle, and results are obtained.
2. In the above case, try changing the battery capacity and repeat the simulation.
Answer:
Loading file is 'EV_defaults_in' and the cargo mass is set as 500kg. In this case, we will increment the number of battery modules by 15. hence the total is 40 resulting in a nominal voltage of 493v.
'CYC_FTP' is selected to be the drive cycle. Each FTP drive cycle lasts for a time period of 2477 seconds and a distance of 17.77km. In order to verify if the vehicle can travel for 45km, we have considered that the number cycle is 4.
On clicking RUN.
the results figure window appears, the graphs for velocity SOC Emission and overall ratio are displayed.
CONCLUSION: From the above graph of SOC it is evident that the state of charge remains at 20% even after completing 4FTP drive cycles. Also under the fuel consumption tab, the distance traveled is displayed as 53.3 km. Hence by the previous case where the distance traveled was 41.4 km. Hence by increasing the number of battery modules from 25 to 40, we can make the EV car easily travel more than 45 km.
3. Perform gradeability test with PRIUS_Jpn_defaults_in file. Compare your results in table and conclude.
Answer:
Loading 'PRUS_Jpn_defaults_in' in the ADVISOR TOOL.
The drive cycle selected is 'CYC_UDDS'.The gradeability test toggle is selected. On clicking the Grade options button, we can set the speed and duration as required. Also, other parameters can be changed.
CASE:1.
SPEED = 60mph=96.6kmph and duration =20 seconds. All other parameters are set as default.
CASE:2. SPEED=70 mph =112.7kmph and duration =20 seconds. All other parameters are set as defaults.
CASE:3. SPEED= 80mph=128.7kmph and duration=20 seconds. All other parameters are set as defaults.
CASE:4. SPEED =90mph=144.8kmph and duration =20 seconds. All other parameters are ser as default.
CASE:5. SPEED=100mph=160.9kmph and duration=20seconds. All other parameters are set as default.
Conclusion: In the below table, it is seen that the gradeability has been tested for different speed values keeping the duration values constant. From the table, it is evident that the gradeability decreases with the increase in speed of the vehicle. The change in duration has no the gradeability of the vehicle
