1. BY
S.A.JAVEED B.TECH 4-1 SEM
MECHANICAL (142J1A0301)
GEETHANJALI COLLEGE OF ENGINEERING & TECHNOLOGY

2. CONTENT
 WHY WE NNED THIS?
 PARTS EXPLANATION WITH EXAMPLE
 SPECIFICATION
 POWERTRAIN
 BATTERY
 CHARGING
 SUSPENTION
 AUTPILOT
 ADVATAGES
 DISADVANTAGES
 CONCLUSION

3. WHY WE NEED THIS?
 Now the carbon dioxide content in India is 404.02 according to study of April 12 2015
 In 1960 India emitted 120 million tonnes of co2 and now in 2015 “2406 million tonnes of
co2 emitted” to the atmosphere

4.  After that report India was placed 3rd place in co2 emission
 Yearly 1.5 ppm of co2 emission in increases now approximately 407-408 ppm of carbon
dioxide is present in atmosphere
 To reduce the emission of co2 India has to move to electric automotive
 According to the survey of Stanford university Indian vehicles emitting 33% of carbon
dioxide to the atmosphere.
 The world most efficient electric car is “TESLA MODEL S”

5. SPECIFICATIONS OF TESLA MODEL S

6. POWERTRAIN
 The electric motor is the powertrain to tesla model s
 In this model s different kinds of variants exits

7.  The 2012 Tesla Model S Performance model has a three phase, four pole AC induction 416 hp
(310 kW) and 443 ft·lb (600 N·m) rear-mounted electric motor with copper rotor.
 The base model uses a 362 hp (270 kW) and 325 ft·lb (440 N·m) motor. The company claimed a drag
coefficient of Cd=0.24, lower than any car when released.
 The rear axle has a traditional open differential. Models with dual motors also have an open
differential on the front axles as well.
 The front and rear axles have no mechanical linkage – with dual motors the power distribution
among them is controlled electronically.
 The Model S P90D has a top speed of 155 mph (249 km/h) and it accelerates from 0 to 60 miles per
hour (0 to 97 km/h) in 2.8 seconds

8. BATTERY
 In model s different kinds of batteries for different variants
 The battery arrangement is

9.  The EPA range for the 60 kWh battery pack model was 208 mi (335 km) and the 85 kWh battery
was 265 miles (426 km)
 This is also due to other factors such as drag coefficient, weight, motor efficiency and rolling
resistance.
 Musk stated that driving at 65 mph (105 km/h), under normal conditions, gives a reasonable range
of 250 miles (400 km)
 The 85 kWh battery pack weighs 1,200 lb (540 kg) and contains 7,104 lithium-ion battery cells in 16
modules wired in series (14 in the flat section and two stacked on the front). Each module contains
6 groups of 74 cells wired in parallel; the 6 groups are then wired in series within the module.
 the battery pack used modified Panasonic cells with nickel-cobalt-aluminum cathodes . Each cell
was of the 18650 form factor (i.e., an 18 mm diameter, 65 mm height cylinder), similar to the
Panasonic NCR18650B cell that has an energy density of 265 Wh/kg.
 Analysts estimate battery cost to be around 21–22% of the car cost.
 Under its five-cycle testing protocol, the US Environmental Protection Agency (EPA) rated the
85 kWh Model S model with a combined fuel economy equivalent of 89 MPGe(mile per gallon
gasoline equivalent) (2.64 L/100 km), with an equivalent 88 mpg-US (2.7 L/100 km; 106 mpg-imp) in
city driving and 90 mpg-US (2.6 L/100 km; 110 mpg-imp) on highways.

10. CHARGING
 n all markets the charge port is located behind a door in the left taillight. During charging, the
charge port pulses green. The frequency at which the charge port's light pulses slows down as
the charge level approaches full. When charging is complete, the light stops pulsing and is
solid green.

11. SUSPENSION
 The Model S has independent coil spring suspension on all four wheels – front double
wishbone, virtual steer axis control arm and rear independent multilink.
 the car is available with self-leveling , height-adjustable air suspension. This is accomplished
via adjustable Bilstein shock absorbers controlled by the driver.
 The car is meant to lower itself at highway speed and raise itself to traverse steep driveways
and rough terrain, despite the low 6-inch ground clearance and rather long 116-inch
wheelbase.

12. AUTOPILOT
 all new Model S vehicles come equipped with a camera mounted at the top of the windshield,
forward looking radar in the lower grill, and ultrasonic acoustic location sensors in the front and
rear bumpers that provide a 360-degree buffer zone around the car.
 This equipment allows Model S to detect road signs, lane markings, obstacles, and other vehicles. In
addition to adaptive cruise control and lane departure warning .
 "Tech Package" option will allow this system to enable semi-autonomous drive and parking
capabilities.

13. OTHER FEATURES
 Cargo space is available under the front hood (called front frunk) and at rear a free space is available
which can easily fit 3 adults on the “frunk”
 Automatic controls on hot key
 Any electric car don’t have any sunroof but this model s having it.
 Instrument panel at front of the drive which can control every thing in the car , a digital LED
indicator.
 Tesla give warranty to powertrain for 8 years of limited 100000 miles (160000 kM)

14. PROS
 No gas required , Electric cars are entirely charged by the electricity you provide, meaning you
don’t need to buy any gas ever again.
 No emission , Electric cars are 100% eco-friendly as they run on electrically powered engines.
 Safe to drive tesla model s have autopilot software and connected to hardware.
 Cost effective , nowadays due to advance technology the mass production of the batteries will
reduce the cost.
 Low maintenance cost , there is no need to lubrication.
 Reduce noise pollution , electric vehicles are driven by motors which gives smoother motion.
 Some governments provide policies on the purchase of electric cars.

15. CONS
 Recharge point is required for charging the vehicle.
 Electricity isn’t free .
 Most of the electric cars have short range .
 Charging time for the vehicle is more .
 Normally electric vehicles are made for 2 seaters .
 Battery replacement of the vehicle for every 3-8 years .
 These vehicles are not suitable for power places.

16.  CONCLUSION
 The electric vehicles are effectively in future for that we want to develop latest
technologies this stream
 Government has to provide some policies to encourage electric vehicle
 The cost of the vehicle is decreased when the cost of the battery production is reduced

17. ANY QUESTIONS