Week-3 Challenge: ADVISOR Tool

AIM: -

To use ADVISOR tool and simulate the given question.

OBJECTIVE: -

2. 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.
3. In the above case, try changing the battery capacity and repeat the simulation.
4. Perform gradeability test with PRIUS_Jpn_defaults_in file Compare your results in table and conclude.

THEORY: -

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.

You may benefit from using ADVISOR if you want to:

• estimate the fuel economy of vehicles that have not yet been built
• learn about how conventional, hybrid, or electric vehicles use (and lose) energy throughout their drivetrains
• compare relative tailpipe emissions produced on a number of cycles
• evaluate an energy management strategy for your hybrid vehicle’s fuel converter
• optimize the gear ratios in your transmission to minimize fuel use or maximize performance, etc.

The models in ADVISOR are:

• mostly empirical, relying on drivetrain component input/output relationships measured in the laboratory, and
• quasi-static, using data collected in steady state (for example, constant torque and speed) tests and correcting them for transient effects such as the rotational inertia of drivetrain components.

ADVISOR was preliminarily written and used in November 1994. Since then, it has been modified as necessary to help manage the US DOE Hybrid Vehicle Propulsion System subcontracts. Only in January 1998 was a concerted development effort undertaken to clean up and document ADVISOR.

Since then, over 4500 individuals have downloaded one or more versions of ADVISOR, including all of the OEMs and major suppliers. About 2/3 of the users are from industry and 1/3 from universities. A short list of major ADVISOR users includes:

• DaimlerChrysler
• Ford Motor Company
• General Motors Corp.
• Delphi Automotive Systems
• Visteon
• and hundreds of others

Q1. 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.

Ans: -

In 1 cycle it's only 17.8 km we have to complete 45 km so we have to increase the cycle.

As we see here a warning message means the distance is more than the range of the current battery capacity so the vehicle can’t travel till 45 km.

Q2. In the above case, try changing the battery capacity and repeat the simulation.

The current battery capacity is 25 we have to increase the capacity with 4 no. of cycle because we need to travel 45 km.

Here we can see that the warning message is there with 30 battery capacity so we have increased more battery capacity.

Here we can see that with 3 cycles of 45 battery capacity we can travel more than 45 km.

Q3. Perform gradeability test with PRIUS_Jpn_defaults_in file. Compare your results in table and conclude.

Vehicle speed (mph)	Vehicle speed (kmph)	Gradeability (%)
20	32.2	19.8
25	40.2	16.5
30	48.3	14.7
35	56.3	13
40	64.4	11.7

From the above results we can see that when the vehicle speed increased the gradeability of vehicle decrease means speed is inversely proportional to gradeability.

CONCLUSION: -

We can conclude that we have to study the advisor tool and solve the problem with the help of the tool. We got satisfactory results for all problems.