An EV is a shortened acronym for an electric vehicle. EVs are vehicles that are either partially or fully powered on electric power. Electric vehicles have low running costs as they have less moving parts for maintaining and also very environmentally friendly as they use little or no fossil fuels (petrol or diesel).
Basics of electric vehicle simulations using ansys
1. BASICS OF ELECTRIC VEHICLE
SIMULATIONS USING ANSYS
Project presented
by
P . Anil Kumar Naidu
Mechanical engineering
Reg no : 11906633
Section : M1903
1
2. CONTENT OF THE PRESENTATION :
❖ Introduction
❖ Energy chain
❖ Losses in Electric Vehicle
❖ Difference b/w Gasoline vehicle & EV
❖ Key components of EV
❖ CFD(computational fluid dynamics)
❖ Steps in CFD
❖ BTMS(Battery thermal management system)
❖ Simulations of BTMS
❖ EV motor sizing
❖ Types of motor for EV
❖ Automotive electrical & electronics systems
❖ Basics of fluid mechanics
❖ External Aerodynamics
❖ Conclusion & perspective
2
Prepared by
P.Anil kumar Naidu
From lovely professional university
3. 3
Introduction:
Purpose of EV
• improve fuel
economy, lower
fuel costs, and
reduce emissions.
Electrical
Vehicle
• An EV is a
shortened
acronym for an
electric vehicle.
EVs are vehicles
that are either
partially or fully
powered on
electric power.
Importance of
EV
• Electric cars are
100 percent eco-
friendly as they
run on electrically
powered engines.
It does not emit
toxic gases or
smoke in the
environment as it
runs on a clean
energy source.
4. 4
Energy Chain of EV and gasoline vehicle :
Coal
Thermal power plant
Electrical Grid
Home
Battery
Losses
Power to wheel
Fossil fuel
Refinery
Fuel
Losses
Power to
wheel
Electrical vehicle
Gasoline vehicle
5. 5
Losses in Electric Vehicle :
Losses in electrical vehicles without regenerative Braking
Loss type Percentage of loss
Electric drive system loss 20.00%
Charging loss 10.00%
Accessory loss 8.00%
Total loss 38.00%
6. 6
Gasoline vehicle :
1.Converts 20% of the
energy in gasoline to power
the wheel
2.Average speed is 199 kilo
meter per hour kmph
3.Average acceleration is 0-
96.5 kmph in 8.4sec
4. High maintenance owing
to more number of moving
parts
5 .Average mileage is 480 to
500 kms before refueling.
Typically achieves 10-12
kmph
6. Average cost INR 0.7-1.1
million
Electrical vehicle :
1.Converts 75% of the
chemical energy from the
batteries to power the
vehicle.
2. Average speed is 48-153
km per hour (kmph)
3.Average acceleration is 0-
96.5kmph in 4-6 seconds
4.Maintenance is minimal
due to lesser number of
moving parts
5. Car can travel 120-200 kms
before recharging
6. Average cost is INR 0.9-6
million
Hybrid vehicles :
1.Converts 20% of the energy
in gasoline to power the
wheel
2.Average speed is 177km per
hour (kmph)
3.Average acceleration is 0-
96.5 kmph in 6-7 seconds
4. High maintenance owing to
more number of moving parts
5.Average mileage typically
achieves 20-25 kmph
6.Average cost is INR 0.9-6
million
Difference b/w Gasoline vehicle & EV :
7. 7
Key components of EV :
Battery
Electric motor
Power
electronics
controller
Thermal
system
DC-DC
Converter
8. 8
CFD(computational fluid dynamics) :
What is CFD ?
Computational fluid dynamics is a branch of fluid mechanics which deals with numerical
analysis data structures to analyze and solve problems involving fluid flows.
CFD is the simulation of real fluid systems using modeling (mathematical interpretation of
physical phenomena ) numerical methods.
CFD is made possible due to advancements in computers and their improved computational
capability.
It is a branch of fluid mechanics that uses numerical analysis and data structures to analyze
and solve problems that involve fluid flows.
9. 9
Steps in CFD :
1.Making the geometry
2.Meshing the geometry
3. Setting up physics
4.Solutions –calculations
5.Results /post-processing
Steps in CFD
10. 10
BTMS(Battery Thermal Management system):-
BTMS plays a vital role in the control of the battery thermal behavior. The BTMS
technologies are:
Air cooling system, liquid cooling system, direct refrigerant cooling system,
phase change material (PCM) cooling system, and thermo- electric cooling
system as well as heating.
FIGURE : BTMS_GEOMETRY
12. 12
EV motor sizing :
1.Stator core
4.Resolver stator
3.Winding bars
2.Connecting ring
5.Resolver rotor
6.Rotor magnet
7.Rotor core
8.Shaft
Parts of EV Motor :
15. 15
In this complete report we have seen or we learn
about the Electric vehicle and about how we do simulations using ansys software,
overall observation is that:-
✓ Electric vehicle provide greater cost and energy savings in the long run.
✓ More subsides and charging stations can be set up to encourage consumers to
switch to EV in Finland.
✓ EV charging load can be modeled stochastically, using information of charging
characteristics, driving habits and times and state-of –charge distribution of the
Vehicle.
✓ EV is far better than the Gasoline for the environment.
✓ Electricity can be renewable resource, gasoline cannot.
Conclusion:
16. 16
FUTURE PERSPECTIVE :
✓ General Motors says it will make only electric vehicles by
2035, Ford says all vehicles sold in Europe will be electric by 2030 and VW says 70% of its
sales will be electric by 2030.
✓ By 2025 20% of all new cars sold globally will be electric, according to the latest forecast
by the investment bank UBS. That will leap to 40% by 2030, and by 2040 virtually every
new car sold globally will be electric, says UBS.
Uttar
Pradesh
26%
Bihar
10%
New Delhi
10%
West
Bengal
9%
Karnataka
8%
Assam
7%
Maharastra
6%
Tamil nadu
5%
Rajisthan
5% others
14%
sales
17. 17
I would like to express my special thanks of gratitude to our University(lovely Professional
University)
I would always thankful to our LPU who gave me this golden opportunity to do this
wonderful course of “Basics of Electric Vehicle Simulations Using Ansys” from “SKILL LYNC”.
It was really a great experience to do this course, I really enjoyed while learning this course
because it was very interesting course actually. And then I came to know so many new things
which I was not known earlier.
Secondly, I would like to thanks to "SKILL LYNC” whose employee really helped me whenever
I needed.
I would like to thanks to my friends too for helping me to complete this course.
I did this course not for the certificate; also for enhance my skills and knowledge.
THANKS AGAIN TO ALL WHO HELPED ME
ACKNOWLEDGEMENT :
