Week-3 Challenge: ADVISOR Tool

ADVISOR TOOL:

Advisor tool was created by National Laboratory for Renewable Energy(NREL) and DEpartmenrt of Energy, USA.

The Development phase for Advisor tool was between 1994 to 2004.

It is used for Rapid Analysis of performance and fuel ecocnomy of conventional, HEV and BEV.

The Simulation Runs in backward flow (ie from Driving Cycle to Energy Storage System)

Vehicle Models used are experimental, relying on drive train component input and output relationship measured in laboratory. ie Real World Data.

For Building Model only Lookup Tables are used instead of inbuilt MATLAB Models.

ADvisor tool has Vehicle Window, Parameters Window and Simulation Results Window.

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.

First load the advisor tool in MATLAB by using 'advisor' command in Matlab Command window.

Keep the Units in Metric to get results in km.

After loading the advisor tool in GUI select EV_defaults_.in file from load file.

As per the Question the Cargo Mass is changed to 500kg from bottom right corner as shown in above image and keeping rest of the parameters default.

The Vehicle Kerb Weight is 592 kg. The battery used is ESSPB 25 which has 25 modules and Nominal Voltage of 308V weighing around 275 Kg.

The Motor used is AC Induction Motor having Power Rating of 75 KW and weight 91 kg with maximum efficiency of 92%.

The Vehicle Gross Weight is 1508 Kg after increasing CArgo Weight to 500Kg.

Then Click on Continue to move to next GUI. Select FTP Drive cycle CYC_FTP in drive cycle.

Select FTP Drive cycle CYC_FTP in drive cycle and No of Cycles as 1. Keep all the parameters as default.FTP Drive cycle has total Run time of 2477seconds and total distance travelled at the end of Drive cycle is 17.77km. The Drive Cycle has max speed of 91.25Kmph and average speed of 25.82kmph.

To get the results Click on Run. The Results obtained are shown below.

The above results show that Vehicle has travelled 17.8km of distance after end of one Cycle. The Battery SOC has intial charge of 100%. After the drive cycle it has reduced to 60% from 100%. So to travel 17.8Km Vehicle has consumed 40%  Charge.

Now Changing the FTP Drive Cycle No of Cycles to 2, to check total distance travelled and Battery SOC.

Drive Cycle changed to run 2 times and keeping all other parameters same.

After Running FTP Drive cycle for 2 times the Vehicle has travelled a distance of 35.5 km and the SOC is dropped from 100% to  nearly 20%  after 5000 seconds. The Battery module temperature has also increased to 29 degree Celsius from 23.5 degeree Celsius from Previous Case.

Now Again Changing the Drive Cycle no of cycle to 3 to chech whether it can travel 45 Kms?

No of Cycles changed to 3.

After running Drive Cycle for 3 times the vehicle travelled a distance of 41.4Km with SOC reducing to 0% in 2.5 Drive Cycles. So with 20% SOC it travelled 5.9Km before going to 0 SOC.

So by increasing the cargo size to 500KG and keeping all the Vehicle Parameters default the vehicle EV_defaults.in  cannot travel a distance of 45km using FTP Drive Cycle  as SOC is reduced to 0%.

2.   In the above case, try changing the battery capacity and repeat the simulation.

Now for above Case The Battery Pack Capacity is Changed. The Battery Pack Selected is ESSPB85 having 46 Modules with Nominal Voltage of 549Volts and Battery pack weight is 1145kg. The Gross Vehicle Weight is increased to 2378 Kg. Rest of the Parameters are kept default.

The Drive Cycle selected is FTP. The Drive cycle is run for odd number of times, 1,3,5,10 and 12.

EV defaults .in with ESSPB85 Battery Pack.

The above results show that Vehicle has travelled 17.8km of distance after end of one Cycle. The Battery SOC has intial charge of 100%. After the drive cycle it has reduced to 92%from 100%. So to travel 17.8Km Vehicle has consumed 8%  Charge. The Battery Module Temperature is 20.3 Degree and Motor Controller Temperature is 45 degree.

After Running drive cycle for 3 times the Vehicle has travelled a distance of 53.3 km in 7500Seconds. The Battery SOC has dropped to 76%. Vehicle has consumed 24% of Battery SOC. The Battery Module Temperature has increased to 20.9 Degree and Motor Controller Temperature is at  45 degree Celsius.

 With No of cycles set to 5 the vehicle has travelled distance of 88.38km in 12200 seconds. The Battery SOC has dropped to 60%. The Battery Module Temperature is increased to 21.2 degree Celsius and Motor Controller temperature remains at 45 degree celsius.

After 10cycles of FTP Drive Cycle the Vehicle has covered a distance of 177.7 km and Battery SOC has reduced to 18%. The Battery Module Temperature is increased to 21.5 degree Celsius and Motor Controller temperature remains at 45 degree celsius.

After 12 Cycles of FTP the Battery SOC has reduced to 0% and covered a distance of 209.2Km in 29000Seconds. The Battery Module Temperature is increased to 21.9 degree Celsius from  21.5 and Motor Controller temperature remains at 45 degree and not exceeding 45 degree indicating that thermal management system is keeping the Motor Controller temperature under prescribed limit and battery module temperature is also in prescribed limit.

The Above Vehicle with ESSPB85 Battery Pack Travels a total distance of 209.2Km in 29000Seconds. It travels 45 kms of distance in just 3 cycles with SOC reducing to 76% with battery pack capacity of ESSPB85 having 46 Modules and Nominal Voltage 549Volts.

3.   Perform gradeability test with PRIUS_Jpn_defaults_in file

      Compare your results in table and conclude. 

First load the advisor tool in MATLAB by using 'advisor' command in Matlab Command window.

Keep the Units in Metric to get results in km.

After loading the advisor tool in GUI select EV_JPN_defaults_.in.in file from load file.

The Prius is an Hybrid Electric Vehicle which has a Electric Motor, Generator and and SI Engine. The Battery Pack used is NiMh ESS_NiMh6 which has 40Modules with Nominal Voltage of 340Volts. The weight of battery pack is 40kg. it has Motor if 31KW  with 91% efficiency. The generator has maximum power of 15Kw with 84% efficiency. The total weight of Vehicle is 1368Kg. The Parameters of Vehicle are kept default. 

 Toyota Prius HEV Model 

After selecting model click on continue to move to next GUI to select Drive Cycle and Gradeability.

Simulation Selection Parameters Window

The Drive Cycle selcted is FTP.

The Speed is kept as 55mph.

 At 88.5Kmph the Gradeability is 9.3%. The Batery SOC is 53.5%.

When speed is increased to 65mph ie 104.6kmph the gradeability is decreased to 7.7%. The Batery SOC is 53.5%.

When velocity is increased to 120.7kmph the gradeability is decereased to 5.8%.

When Velocity is decreased to 72.4kmph the gradeability is increased to 11.2%. The SOC Remains at 53.5% after each drive cycle.

Again when Velocity is decreased to 40.2kmph the gradeability is increased to 17.3%.

Whenever the Velocity is Increased the Gradeability % ie at 88.5,104.6 and 120.7kmph is decreased and at lower velocity ie 72.4 and 40.2kmph the Gradeability % is increased. The Vehicle accelerates to 91.2kmph in 14 seconds for each case and reach top speed of 163.4kmph in 48 seconds and travels a distance of 17.8km.