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
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
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
◦ 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
Has higher battery backup than parallel configuration.
We have Starter motor to set the piston in proper position
11. Combined Vehicle
Combined hybrid systems have features of both series and
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
◦ Fuel efficient
◦ Large flexibility
◦ Oil consumption is less
◦ Carbon-based emission is lower
◦ Higher battery pack and high cost
◦ Total weight ,cost and size of the powertrain can be
14. SWOT Analysis Contd.
Huge Demand in Power supply