ADAPTIVE LIGHTING SYSTEM

1. by
 180021602005 AJITHKUMAR. R
 180021602007 ASRARULLAH SHERIFF .U
 180021602008 BALAMANIKANDAN. M S

2. o Introduction
o Objective
o Methodology
Automatic Switching
Operation
Adaptive Front headlight
system
Automatic Wiper Operation
Automatic Head lamp Leveling
Control
o conclusion

3.  Introduction:
• Preventive and active safety of road vehicles is one of
the top priorities in car design and development
nowadays.
• Passive and active safety systems have been developed
in R&D activities to produce vehicles that will perform
at the highest level of safety and ensure comfortable
driving under various conditions.
• For a vehicle driven on the highway at night, it is
required that light beam should be of high density and
should illuminate the road at a distance sufficiently
ahead. Number of vehicles on the roads is increasing
day by day.
• This is turn forced almost all the vehicle manufactures
to think about the extra safety instruments and
electronic controls to attach with these products for
giving the users a safety driving in all road conditions
through a mass flow traffic

4.  When a vehicle is driven on the highway at night, it
is required that light beam should be of high
density and should illuminate the road at a
distance sufficiently ahead.
 However, when a vehicle coming in the opposite
direction approaches the vehicle with a high-beam
headlight, driver of that vehicle will experience a
glare, which may blind him.
 This dazzle effect is one of the major problems
faced by a driver in night driving.
 In practice, one mechanical dimmer switch is used
by the driver to manually 2 select high (bright) or
low (dim) headlight beam. However, this is an
awkward task for the driver especially during peak
traffics.

5.  Objective
 Adaptive Lighting System for Automobiles is a smart
solution for safe and convenient night driving
without the intense dazzling effect and
aftermaths.
 Adaptive Lighting System for Automobiles needs no
manual operation for switching ON and OFF
headlight/down light (Bright/Dim) when there is a
vehicle coming from front at night.
 It detects itself whether there is light from the
front coming vehicle or not. When there is light
from front coming vehicle,it automatically switches
to the down light and when the vehicle passes it
automatically switch back to headlight.

6.  Methodology
 Automatic Switching Operation:
 When the ALSA system is turned on, the LCD is
displays the initial message.
 At this instant the relay will be in off position. If
light sensor detects any light from front coming
vehicle,the relay will be energized which switches
to down light.
 If light sensor does not detect any light from front
coming vehicle, the relay will not be energized and
the head light will remain in high beam position.
 The operation will continue until light sensed by
LDR.
 The operation is depicted in flow chart which is
given below

7.  When the ALSA system is turned on, the LCD
displays initial message.
 When the moisture accumulated on the outer
surface of the glass is sensed by moisture
sensor the wiper motor will run.
 If the moisture sensor does not sense any
moisture content, then the wiper will not be
turned on

8.  Adaptive Front headlight system
 In short, adaptive headlights are a safety feature
that uses sensors to automatically adapt to low-
light situations and conditions, such as when you’re
driving around a curve or over a hill.
 Consider how standard headlights work when you
come upon a bend in the road, where there are no
streetlights.
 As you prepare to turn at the bend, standard
headlights would be focused straight ahead, at
what’s directly in your midst, such that they
illuminate the side road instead of what’s around
the bend.

9.  As a result, for a long moment or two, you are
literally in the dark, unable to see what’s
approaching as you make your turn around the
bend.
 Is there a broken down vehicle in the middle of
the street? Someone, or some animal crossing the
road?
 By contrast, adaptive headlights turn their beams
as you turn the steering wheel, and are
synchronized so that when you make the turn, your
adaptive headlights respond in kind, shedding light
on the road in front of you, where you are headed,
not on the side street.

10.  Adaptive Front headlight system

11.  Automatic Wiper Operation
 When the ALSA system is turned on, the LCD
displays initial message.
 When the moisture accumulated on the outer
surface of the glass is sensed by moisture
sensor the wiper motor will run.
 If the moisture sensor does not sense any
moisture content, then the wiper will not be
turned on

12.  Automatic Wiper Operation

13.  Automatic Wiper Operation

14.  Automatic Head lamp Leveling Control
 Automatic head lamp leveling control adds another
degree of freedom to front adaptive head lamp systems.
 Sometimes vertical leveling is needed for the head
lamps when weight is distributed unevenly in the car,
when the vehicle is accelerating/braking, or when
traveling across bumpy terrain.
 An automatic head lamp leveling control provides
appropriate lighting for these situations using stepper
motors attached to the head lamp assembly. There are
static and dynamic systems.
 Static systems only correct for the weight distribution in
a vehicle.
 It calculates the vehicle tilt angle using information
provided by vehicle axle sensors and adjusts the head
lamp to match the vehicle tilt angle

15.  Left: Low beam with evenly distributed
weight. Right: Low beam adjusted when center
of gravity moves to rear of vehicle.
 Dynamic systems account for both weight
distribution and accelerating/braking changes.

17.  CONCLUSION
• Operation of ALSA comprises of following
scenarios:
• High beam headlight will be turned on initially
when the system is turned on.
• The system switches to down light when light is
sensed by the light sensor and back to high
beam headlight when no light is detected by
the light sensor.
• And to perform the wiper operation which
clears the moisture accumulated on the outer
surface of the glass

18. • Adaptive lighting system can perform a great
deal in reducing the manual efforts and fatigue
of drivers in manual switching of the headlamp
frequently while driving through highways full
of moving vehicles.
• However, vehicles employed with automatic
dippers are not very often seen in cities, and it
may be due to lack of information about the
system and also because of giving attention to
the people saying that it is not at all
practicable in highways.

19. • Future work:
• Real time analysis on number of accidents and
mode of accidents taking place in a high ways
can be noted down to construct statistical
model.
• The relationship between frequency of
switching in deep curves on road and the
opponent high speed and low speed vehicles
velocity which affects flickering can be
carefully studied and construct a resilient ALSA
model.
• The sensitivity of LDR sensor can be further
enhanced to reduce the delay of switching
between high beam and low beam.

20. • Future work:
companys

21. • Future work:
companys market share in india