AN INTRO ABOUT HYBRID VEHICLE

1. ADVANCEMENTS IN
HYBRID ELECTRIC
VEHICLE
Presented by,
R.Pranav Ram B.E (Mechanical Engg.)
J.Venkatesh B.E (Mechanical Engg.)
Ramco Institute Of Technology, Rajapalayam

2. Evolution of Electric cars
 Elektromobil , first invented electric vehicle by Lohner-Porsche
 Introduced to overcome noise and pollution
 A public show ‘Paris Exposition of 1900’.
 Later added IC engine, runs at 61 kmph.
 Toyoto’s Prius made huge impact in 1997 .
 1Millon worldwide customers.

3. Hybrid Electric Vehicle
 A Hybrid electric vehicle (HEV) is a type of vehicle that uses both
an electric engine and a conventional internal combustion engine.
Why do we go for HEV ???
 Improved Fuel Economy
 CO2 Reduction Potential
 Better Acceleration
 Reduced Emissions

4. Salient Features
 Regenerative braking - Energy wasted during
braking is converted and stored in the battery
 Auto-start/auto-shutdown - Automatically
shuts down during idling
 Electric motor assist - Electric motor allows the
engine to be more efficient in nature.

5. Types of Hybrids
 There are 3 major categories, they are
Series Hybrid
Parallel Hybrid
Combined

6. Parallel Hybrid Vehicle
 A HEV with parallel configuration has direct connection with
power unit and wheels
 Also connects Electric motor with driving wheels.
 Disconnect clutch between the engine and transmission to
allow electric launch without starting the engine
 Example:
◦ ACCELERATION - ELECTRIC MOTOR
◦ DRIVING IN HIGHWAYS - IC ENGINE

8. Series Hybrid Vehicle
 In Series configuration IC Engine supplies energy to motor
for driving the wheels.
 No MECHANICAL connection between Hybrid power unit
and wheels.
 Has higher battery backup than parallel configuration.
Example :
We have Starter motor to set the piston in proper position

11. Combined Vehicle
 Combined hybrid systems have features of both series and
parallel hybrids.
 There is a double connection between the engine and the
drive axle: mechanical and electrical.
 This split power path allows interconnecting mechanical and
electrical power, at some cost in complexity.
 Power-split devices are incorporated.
 At low speeds powered by motor.

13. SWOT Analysis
Strength :
◦ Fuel efficient
◦ Large flexibility
◦ Oil consumption is less
◦ Carbon-based emission is lower
Weakness:
◦ Higher battery pack and high cost
◦ Total weight ,cost and size of the powertrain can be
excessive.

14. SWOT Analysis Contd.
• Opportunities:
Technology Development
Economic benefit
• Threaten:
Huge Demand in Power supply

15. Toyota Prius
 First Emerged hybrid car commercially.
 Current edition is FOURTH GENERATION.

16. THANK YOU