It is an electric motor that is incorporated into the hub of each wheel and drives it directly.

1. - Ganesh choudhary
IN-WHEEL MOTOR SYSTEM

2. Chevrolet FNR concept
Designed by General Motors’ Pan Asia Technical Automotive Center (PATAC), Shanghai

3. Some of the advance technologies incorporated are
• Unique capsule design.
• Iris recognition system.
• Dragonfly doors open upwards.
• Swiveling front seats upto 180 degrees to face the rear seats.
• Magnetic hubless wheel electric motors (In-wheel motor
system

4. MAGNETIC HUBLESS WHEEL ELECTRIC MOTORS
(IN-WHEEL MOTOR SYSTEM)

5. is an electric motor that is incorporated into the hub of each wheel
and drives it directly.
WHAT IS IN-WHEEL ELECTRIC MOTOR ?

6. HOW HUB MOTOR DIFFER FROM AN ORDINARY MOTOR ?
Powered by one motor -All wheel
driven.
Multiple motors, one at each
wheel.
Need driveshaft, transmission to
transmit power to the wheels.
Each wheel drives itself.
Ordinary Electric motor In-wheel motor

7. COMPONENTS

8. WORKING
wireless system transmits the electricity through a transmitting coil to a
receiving coil in the wheel hub through induction.

9. ADVANTAGES
 68-75% Battery to Wheel efficiency, While IC engines achieve
only around 18-23% Tank to Wheel efficiency, i.e. Powerloss is
less.
 Current complex wiring distribution and its susceptibility to
shorting out is solved.
 Controlled Individual acceleration / braking system prevents
mishaps such as Skids and maintain vehicle stability.
 Max can run at 75 KMph speed.

10.  whole lot simpler (mechanically less complex).
 Demonstration vehicles are already out , pickup truck , few
buses and Bicycles.
 High torque at startups, torque of up to 700Nm at each
wheel.
 Rid of the engine compartment thus more space for
passengers & luggage.
 Lighter Vehicle (Each wheel-38 Kg approx) thus less
energy required to drive.

11. CHALLENGES AHEAD.
 To achieve greater speed than just 75 KMph.
 Development in balancing the Unsprung mass issue ,
improvement in Shock absorption and vibration.

12. FUTURE SCOPE
 Receiving electricity wirelessly from transmitting coils that
are embedded under road surfaces.
 Battery less Electric cars.

13. REFERENCES
 Autoevalution.com/world's_First_Wireless_In_WheeL
 NTN Technical paper – Review No.79 (2011) by Yuich ITOH
 World Electric Vehicle Journal Vol. 4 - ISSN 2032-665, 2010.
 Electric & Hybrid Vehicle Technology magazine, July 2013 edition.
 Proteanelectric.com/a_new_paradigm
 Extremetech.com /Chevy_FNR_science_fiction_made_real.
 Wikipedia- Wheel Hub motors

14. QUESTIONS ???

15. THANK YOU