The document discusses wireless charging technologies for electric vehicles (EVs), highlighting their benefits such as energy efficiency, convenience, and potential for dynamic charging. It outlines the basic functioning of wireless charging systems, their advantages over traditional methods, and obstacles to widespread adoption. Finally, it references research advancements and potential future developments in the EV domain.

1. Rajesh
Automotive Electronics
Wireless Charging in
Electric Vehicle

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 Electric Vehicle
 Benefits of Electric Vehicle
 What is Happening in the world of Electric Vehicle?
 Electric Vehicle Charging Types
 Wireless Charging
 Advantages of Wireless Charging
 Dynamic Wireless Charging
 Impact of Wireless Charging on the Electric Vehicle Growth
 References
Content

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What are EVs ?
Electric vehicles (EVs) run on electricity only. They are propelled by one or more electric motors powered
by rechargeable battery packs.

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 Energy efficient.
 Reduced energy dependence
 Regenerative Braking
 Easy to make Autonomous Vehicle
 Easy Driving
 Pollution Free
Benefits of Electric Vehicle

5. What is happening in the world of electric vehicles?
M.TECH. AUTOMOTIVE ELECTRONICS 5
POWERED THROUGH THE AIR
TRANSFER ENERGY
WITHOUT THE CORD
Revolutionise the world of electric vehicles.
Cut the cord
Smart GRID
Wireless Charging
Future is Electric

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Conductive Charging for Electric Vehicle

7. Wireless charging is a method of charging batteries without the use of cable or Physical connection
with the device specific AC adaptors. Essentially wireless charging (wireless power transfer or Inductive
Charging or Cord-less Charging) uses electromagnetic fields to safely transfer power from a
transmitting source to a receiving device for the purposes of wirelessly charging (or recharging) a
battery. As the name suggests, it does so without the use of a physical connection.
Wireless Charging
M.TECH. AUTOMOTIVE ELECTRONICS 7

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Wireless EV Charging System

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 Inductive charging is based on the possibility of transferring power
through the space between two objects, a transmitting source and a
receiving device in order to charge or recharge a battery without any
physical connection.
Contd…

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1. Power Supply
2. Transmitting Pad
3. Wireless Electricity and Data Transfer
4. Receiver Pad
5. System Controller
6. Battery
Wireless Charging System

11. Benefits of wireless EV charging:
11M.TECH. AUTOMOTIVE ELECTRONICS
 Eliminates the need for a charging cable which is prone to damage,
vandalism and potential safety concerns
 Improves user comfort and convenience as there is no need to manually
plug in a cable – just park the vehicle over the charging pad and charging
begins
 It will Really make a Make Vehicle Autonomous.
 Protected connections
 Durability
 Inductive charging systems can be operated automatically without
dependence on people to plug and unplug. This results in higher reliability.

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 Long Charging time
 Limited Range
 High Cost
 A Universal EV Charging Infrastructure
Obstacle in the Growth of Electric Vehicle

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Smaller
Battery
Less
Weight
Less
Cost
More
Charging
Instant
More
Driving
Range
The greater the number of charging
instances the smaller the EV battery
could be and the lower the lost.
Simplified Range Equation

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THE RISE OF ELECTRIC VEHICLE

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 Inductive charging of electric vehicles at high power levels enables
charging of electric vehicles while in motion (also known as dynamic
charging).
Dynamic Charging

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Contd…
Long distances a challenge for electric vehicles to overcome. Now scientists from Stanford
University have made a significant step towards getting round this problem – by successfully
transferring electricity wirelessly to a moving object. If a car was able to be charged while it
was being driven, then this would solve the problem of limited range and enable vehicles to
travel for potentially unlimited distances. The idea is that a coil on the bottom of a car could
receive electricity from coils that are connected to an electric current that is embedded in
the road.

17. Wireless Charger for Electric Bus
M.TECH. AUTOMOTIVE ELECTRONICS 17

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1) Jianmin Jiang Department of Computing University of Surrey, Guilford, UK “Dynamic wireless charging of
electric vehicles on the move with Mobile Energy Disseminators”
2) Chun Qiu, K.T. Chau, Chunhua Liu, Department of Electrical and Electronic Engineering, The University of
Hong Kong “Overview of wireless power transfer for electric vehicle charging”
3) https://www.qualcomm.com/
4) https://www.pluglesspower.com/learn-about-plugless/
5) https://www.ornl.gov/
References

22. https://www.facebook.com/raj0029
https://www.linkedin.com/in/rajesh29/
https://twitter.com/im_bishnoi
RAJESH
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System Engineer,
Engineering and Industrial Services
Tata Consultancy Services