engineering challenges in ev safety

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2. ENGINEERING CHALLENGES IN EV
SAFETY
TEAM MEMBERS
JNTUH UNIVERSITY COLLEGE OF ENGINEERING HYDERABAD
DEPARTMENT OF CHEMICAL ENGINEERING
(B-Tech 3rd Year)
A.S.V.PARTHASARATHI
K PRANATHI VENKATA PAVANI
SIMHADRI PREETI ABHISHIKTA
S T P LAKSHMI SOWMYA
KAREEM SK SHAHEEN
Registration number: IITGN/CSE/EV/048

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CONTENTS:
1)Introduction
2)Risk concerns – two vs four
wheelers.
3)Market leaders in Battery
Management System (BMS).
4)Charging stations – suppliers.
5)Region wise break up on fires.
6)Correlation of technology with
published research literature.

4. TEACH
A
COURSE
4
1. Introduction
Introduction
An electric vehicle (EV) is a mode of transport
which is powered by electricity.
Unlike conventional vehicles that use a
gasoline (petrol) or diesel-powered engine,
electric cars and trucks use an electric motor
powered by electricity from batteries or a fuel
cell.
A key advantage of EVs over other forms of
transport is that they hold the potential to
significantly reduce pollution by having zero
exhaust emissions.

5. 2.Riskconcerns
 The solution to tackle pollution and
deal with the depleting natural
resources globally merits the use of
EV to manage future mobility. This is
the case not only in India but
globally.
Risk concerns – two vs four wheelers. 5

6. 6
Risk concerns – two vs four wheelers.
Dendrite formation
Dendrites grow from the surface of the negative electrode, which may pierce the separator and
contact the cathode material of the battery, resulting in the electronic contact between the
positive and negative electrodes

7. 7
Risk concerns – two vs four wheelers.
The major chunk of electricity to charge electric cars is
generated through burning fossil fuels which causes
pollution.
Petrol/diesel car manufacturing produces 7 to 10 tonnes of
carbon dioxide gas whereas, Electric car manufacturing
produces 16-19 tonnes of CO2.
Thermal Runaway in Lithium ion battery Emission of gases

8. 3.Marketleadersin
BatteryManagement
System(BMS).
Market leaders in Battery Management System (BMS) 8
A battery management system
can be defined as the brain
behind battery packs.
Battery pack is the most
important part of the electronic
vehicle (EV) and it is more
expensive than the motor itself.
Source:
https://www.vox.com/platform/amp/recode/23027110/
solid-state-lithium-battery-tesla-gm-ford

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Market leaders in Battery Management System (BMS)
Market Leaders in Battery Management System in World
VEHICLE MAKER BATTERY SUPPLIER MODEL BMS SUPPLIER
Toyota Panasonic RAV4 Tesla
Nissan AESC Leaf Calsonic Kansei
Honda Toshiba Fit(Jazz) Honda
Mitsubishi LEJ I-MiEV Mitsubishi Electric
Hyundai Kia - KIA Soul Hyundai Kefico
BMW SBL i3/Active E Preh
Daimler Panasonic Smart fortwo Tesla
Renault LGCPI Fluence/ZOE LG Chem
Ford LGCPI Focus LG Chem
Tesla Panasonic Model S LG Chem
BYD BYD BYD E6 BYD
JAC Guoxuan High-tech iEV4 E-POW
(Source: Global and China Power Battery Management System(BMS) Industry Report, 2014-2017)

10. 4.Chargingstations–suppliers.
A charging station, also called as electric vehicle supply equipment (EVSE) or simply charger is a
piece of equipment that supplies electrical power for charging plug-in electric vehicles
(including hybrids, neighbourhood electric vehicles, trucks, buses, and others).
Charging stations– suppliers. 10
Public Residential
Two
Types

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Chargingstations–suppliers
Charging stations– suppliers.
Public charging stations:
As of December 2012, around 50,000 non-residential charging points were deployed in the U.S., Europe, Japan and
China. As of August 2014, some 3,869 CHAdeMO quick chargers were deployed, with 1,978 in Japan, 1,181 in Europe and
686 in the United States, and 24 in other countries.
Source: Mordor intelligence
(CHAdeMO quick chargers)

12. TEACH
A
COURSE
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Chargingstations–suppliers
Charging stations– suppliers.
All Over The World:
About 7.3 million chargers are active across the world (as of 2019), of which, nearly 6.5 million are private chargers, 0.6 million
are public slow chargers, and 0.26 million are public fast chargers. China accounts for about 37%, 50%, and 81% of global
private, public slow, and public fast chargers, respectively.
Source: acea.auto

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Charging stations– suppliers.

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Charging stations– suppliers.
Suppliers:
 In 2021 Daimler Trucks North America opened the "Electric Island". The station is capable of charging eight vehicles
simultaneously. In addition, the design is capable of accommodating >1 MW chargers once they are available.
 WattEV, announced plans in May 2021 to build a 40-stall truck stop/charging station in Bakersfield, California.
Global cumulative EV sales with fast charging plug standard
(2010 - 2014): IHS Automotive (Graphic: Business Wire)
(Charge for moving)
(Combined Charging System)

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Charging stations– suppliers.
GWh Exclusive data from Benchmark Mineral Intelligence (2018)

16. 5.Region wise break up on fires.
Region wise break up on fires. 16

17. 17
Region wise break up on fires.
Region wise break up on fires in India
SOUTH ZONE
TELANGANA TAMILNADU
 On May 13, 2022 , a pure EV Epluto 7G
e-scooter has been caught fire near LB Nagar ,
Hyderabad .
 The e-scooter can be seen burning in high flames.
 An e-scooter from Pure EV caught fire near Mathur
Toll plaza in the Manjampakkam area of North
Chennai on 29 March, 2022.
 This is also be noted as the third incident of fire in a
Pure EV scooter following two incidents in
September last year.
 This news was reported from Karimnagar district of
Telangana on May 8.
 The e-scooter was identified to be Benling Falcon, a
prominent EV offering by Benling India.
 The e-scooter was plugged in for charging.

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Region wise break up on fires.
Region wise break up on fires in India
WEST ZONE
MAHARASHTRA GUJARAT
 In Nashik, on 9 April, 2022 20 electric scooters of
Jithendra EV Tech caught fire after being loaded on a
transport container (truck).
 On March 26,2022 in Pune an Ola
blue S1 electric scooter parked on the
side of the road scooter catches fire
 The scooter in this case was not
plugged in for charging.
• On 17th June, 2022 , a Pure EV Epluto 7G scooter caught fire
in Gujarat.
• The e scooter was kept for charging.

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Region wise break up on fires.
Region wise break up on fires in India
EAST ZONE
ODISHA GUWAHATI
 On 27 May ,2022,in Bhubaneshwar a Photon scooter from
Hero Electric as partially damaged after it caught fire while
being kept for charged .
 Ola S1 Pro has been under fire on April 22,2022 in Guwahati
, Assam.
 The victim was apparently over speeding and braked in
panic leading to the accident.

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Region wise break up on fires.
Region wise break up on fires in India
 On March 8 ,2021 a fire incident took place outside Vishwavidyalaya metro station
in north Delhi’s university campus.
 The owners of three electric scooters had plugged in their vehicles and kept them
on for charging.
____________________________________________________________________
The Defence Research & Development Organization (DRDO) that was tasked
with investigating into EV fire incidents by the Union Road Transport and
Highways Ministry, has found serious defects in the batteries, including
designs of the battery packs and modules.
NORTH ZONE
DELHI
NOTE

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Region wise break up on fires.
Telangana
Secunderabad:
 A massive fire incident took place in Secunderabad at late night on September 12,2022.
 Eight people were dead due to asphyxiation and six were injured.
 The fire broke out in Gemopai Electric Scooters showroom due to a short circuit occurred due to the overcharging of
the EVs.
RECENT INCIDENT:

22. 6.Correlation of technology with
published research literature.
Correlation of technology with published research literature. 22

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Correlation of technology with published research literature.
SMART GRIDS

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SWITCHED RELUCTANCE MOTORS
Switched Reluctance Motor (SRM) is also known as Variable Reluctance Motor. This motor works on the principle of variable
reluctance. This means, the rotor always tries to align along the lowest reluctance path. As the name suggests, a switching
inverter is required for the operation of Switched Reluctance Motor.
Correlation of technology with published research literature.

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Conclusion
MAJOR SKILL ENHANCEMENTS ARENA IN EV TECHNOLOGY ARE:
•Electric Vehicle charging •Energy Storage and Battery Management System
•Testing and Validation
CONCLUSION

26. TEACH
A
COURSE
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Acknowledgement
We would like to express our gratitude to JNTUH University College of Engineering Hyderabad for letting us
be a part of this prestigious competition. We would like to express our gratitude to Head Of the Department,
Chemical Engineering Dr. T Bala Narsaiah Sir as well as our professors who have bestowed upon us with all the
possible resources.
We would also like to thank Dr.CH Shilpa Chakra ma’am, Head Of the Department, Center for Nano Science
and Technology and T. Rakesh Kumar Sir, Researcher in Energy Storage, for their valuable guidance,
suggestions, cooperation and encouragement, which lead to the successful completion of project.
We would like to specially thank Centre for Safety Engineering, IIT Gandhinagar for giving us this wonderful
opportunity and experience which we shall cherish for a lifetime.
Acknowledgement