Week-3 Challenge: ADVISOR Tool
AIM-
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.
2. In the above case, try changing the battery capacity and repeat the simulation.
3. Perform gradeability test with PRIUS_Jpn_defaults_in file Compare your results in table and conclude.
Theory -
Introduction to the ADVISOR
Advanced Vehicle Simulator (ADVISOR)—the US Department of Energy’s (DOE’s) ADVISOR written in the MATLAB/Simulink environment and developed by the National Renewable Energy Laboratory. ADVISOR provides the vehicle engineering community with an easy-to-use, flexible, yet robust and supported analysis package for advanced vehicle modeling. It is primarily used to quantify the fuel economy, the performance, and the emissions of vehicles that use alternative technologies including fuel cells, batteries, electric motors, and internal combustion engines in hybrid (i.e. multiple power sources) configurations. It excels at quantifying the relative change that can be expected due to the implementation of technology compared to a baseline scenario. ADVISOR’s capabilities and limitations are presented and the power source models that are included in ADVISOR are discussed. Finally, several applications of the tool are presented to highlight ADVISOR’s functionality
Advanced Vehicle Simulator (ADVISOR) was first developed in November 1994 at the National Renewable Energy Laboratory. It was designed as an analysis tool to assist the US Department of Energy (DOE) in developing technologies for hybrid electric vehicles (HEV) through the Hybrid Electric Vehicle Propulsion System contracts with Ford, General Motors, and DaimlerChrysler. Its primary role is to highlight the system-level interactions of hybrid and electric vehicle components and their impacts on the vehicle performance and fuel economy. ADVISOR was first released publicly via the Internet (www.nrel.gov/transportation/analysis) in September 1998. The number of public users of the software tool has grown steadily from a small group of about 30 initial partners to a group of over 4500 individuals that have downloaded the software. The majority (68%) of ADVISOR users are members of industry while 29% are members of academia with the remaining 3% representing government entities. This large user community provides feedback necessary to improve the models and component data to be used within the models. Since first introduced, several updated versions of the software have been periodically distributed via the Internet. ADVISOR Version 3.2 is the latest version of the software. This paper will discuss the fundamental approach used to model vehicle systems in ADVISOR. A description of ADVISOR’s capabilities and limitations will be presented. ADVISOR has three types of power source models that can be included in a vehicle model. These include an internal combustion engine, a fuel cell system, and an energy storage system. The general modeling approach employed for each of these systems will be described briefly. The paper will also highlight typical applications of the tools to real systems analysis problems.
Observations/ Solutions -
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.
Open and run ADVISOR tool in MATLAB.
Now when ADVISOR window opens click on "load file" and select "EV_defaults_in" file.
Now change the cargo mass to 500 kg as shown in image bellow and click on continue.
Now in drive cycle select CYC_FTP as shown in the image bellow
Now click on RUN button which runs the simultion for given specifications mentioned above and we will obtain the result as shown in the image bellow.
* Distance travelled by the vehicle in one drive cycle is 11 miles.
For "2"#of cycle
For 2 cycles the total distance travelled by the vehicle is 22 miles.
For "3" # of cycles
For "3" #of cycles the total distance travelled by the vehicle is 25.7miles.
| #of Cycle | Total distance travelled by vehile (miles) | Total distance travelled by vehile (KM) |
| 1 | 11 | 17.7 |
| 2 | 22 | 35.4 |
| 3 | 25.7 | 41.3 |
Therefore EV_default cannot travell distance of 45 kilo meters
2. In the above case, try changing the battery capacity and repeat the simulation.
We can change the battery capacity in "# of mod Vnom"
A. Changing "# of mod Vnom from 25 to 30 as shown in image bellow
Distance travelled by the vehicle is 30.5 miles.
B. Changing "# of mod Vnom from 30 to 35 as shown in image bellow
Distance travelled by the vehicle is 33.1 miles.
C. Changing "# of mod Vnom from 35 to 40 as shown in image bellow
Distance travelled by the vehicle is 33.1 miles.
3. Perform gradeability test with PRIUS_Jpn_defaults_in file Compare your results in table and conclude.
* In ADVISOR go to Vehivle Input and select PIRUS_Jpn_default model
*Continue to the next window
* In Simulation paramener window select the gradebility test and click on the grade Option box
*Click on or enable "All system enabled" and "Constant road grade" as shown bellow in the image
* Similarly we can run gradablity tests on different speeds as mentioned in the table bellow.
* for 10 seconds Duration
| SPEED(m/h) | Gradeability |
| 30 | 14.7% |
| 35 | 13% |
| 40 | 11.7% |
| 45 | 10.7% |
| 50 | 9.7% |
| 55 | 8.9% |
| 60 | 8.1% |
* For 20 seconds duration
| Speed (m/h) | Gradeability |
| 30 | 17.7% |
| 35 | 16% |
| 40 | 14.6% |
| 45 | 13.4% |
| 50 | 12.4% |
| 55 | 11.5% |
| 60 | 10.6% |
Result - As the Speed of the vehicle increases, the Gradeability decreases irrespective of the Duration.