Challenge

Week-3 Challenge: ADVISOR Tool

AIM: Use ADVISOR tool and simulate the following

Objectives:

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.
In the above case, try changing the battery capacity and repeat the simulation.
Perform gradeability test with PRIUS_Jpn_defaults_in file

Compare your results in table and conclude.

ADVISOR TOOLS:

ADVISOR, NREL’s ADvanced VehIcle SimulatOR, is a set of model, data, and script text files for use with Matlab and Simulink.
It is designed for rapid analysis of the performance and fuel economy of conventional, electric, and hybrid vehicles.
ADVISOR also provides a backbone for the detailed simulation and analysis of user defined drivetrain components, a starting point of verified vehicle data and algorithms from which to take full advantage of the modeling flexibility of Simulink and analytic power of MATLAB.

Steps to launch ADVISOR Tool:

Launch MATLAB and set the wokspace to the location of advisor.
Open the advisor.m file and type "advisor" in the MATLAB command window.
A new window pops up. Select the desired metric and the ADVISOR Tool window opens.
The window consists of Vehicle Input, Simulation Parameter and Results Window.

1. EV_defaults_in :

Select EV_defaults_in in the drop-down menu and change the given parameters, i.e, the mass to 500Kg.
Then click on Continue and a new window appears.
In the above window select CYC_FTP in the drop-down menu.
IT can be seen than the vehicle travels 17.77Km in a single drive cycle. So, we need to check for atleast 3 drive cycles to compare the range of the vehicle.
Enter 3 in # of cycles and Click on RUN.
The above window shows Plots after 3 FTP Drive Cycles.
The 1st Plot shows the Drive Cycle Speed against Time.
From the 2nd Plot, it can be Observed that Battery SOC has declined to 0 at time 5500s(approx), even before completing the defined DC.
Emission is absolute 0 since it is an Fully Electric Drive as shown in Plot 3.
Plot 4 shows the overall ratio.
In the above window, the Distance travelled is measured to be 41.4Km in three drive cycles.

Hence the Vehicle cannot travel a distance of 45 Km under FTP cycle with an Payload of 500 Kg.

2. To get an approximate range of 45 Km by changing the Battery Capacity of EV_defaults_in :

The Battery Module is by default set at 25 offering a Voltage of 308 V.
The voltage is gradually increased and the range of the Vehicle is checked in every iteration.
From the above it can be seen that the Overall Mass increases with increase in the no. of modules.
The module is set to 28 and Click on Continue.
Then the drive cycle is selected as 3 and it is RUN.
In the above window it can be seen that the distance travelled in three drive cycles is 46.3 Km.

Hence to cover a distance of 45 Km, a 28 module 345 Volts battery is required.

3. Gradeability test with PRIUS_Jpn_defaults_in :

Load the PRIUS_Jpn_defaults_in file in the ADVISOR Tools.
Use the Default values and Click on Cintinue.
Here the Gradeability Test box is checked and Click on Grade Options.
The duration is set to 30 seconds and the speed is varied from 20 to 40 mph and the gradeability is noted for each speed value.