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# INTELLIGENT SUSPENSIONS

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```									INTELLIGENT SUSPENSIONS

RAUNAQ SINGH

ANUBHAV AGRAWAL

Interdisciplinary Approach to Research and Development
June 2011
Acknowledgements
We are grateful for the support extended to the writers
of all the publications referred during the research
“Take a suspension system & give it
a brain and you have the best ride
in the world”
INTRODUCTION
• Suspension systems are the legs of a automobile.

• Today we have complex suspension systems like
Magnetic Ride system or the simple coil-damper
arrangement.
What we suggest!!

Take Precaution!!

This is actually what our
brain does the best.
Actuate

Process

Analyze
System Layout

Feedback
Analyze

3D
Horizontal    Vertical
Contour
Scanning     Scanning
Plot
Horizontal Scanning

Constant                  2D raw      The ( x, y) is
Imaging of     Edge      Image with     added to
the road    detection   highlighted     array of
surface                   edges      coordinates
Raw Input From The Camera
After Edge Detection
Vertical Scanning

for depth     Gradient of   the array of
Processing

• The array of coordinates obtained previously; thus providing us
with an array of (x, y, z). This array is then given as input to a
third script which continuously plots 3D contour of the road to

be traversed.

• This 3D contour is then given as input to the back-propagation
algorithm which processes it to provide output so as to trace
the function.
Basic Contour Plot
Actuate

Neural
Signal       Suspension
Network
Conditioning     System.
Output
Suspension System

Displacement of Suspension Spring
Suspension Travelling Plot
Modification to Design

The controlled suspension is a modification of the current suspension
mechanism by way of attaching controlled hydraulic cylinders that are
aiding the suspension systems in controlling damping rates.
• The Hydraulic cylinders at 450 to aid in transfer of
energy from the wheel.
• The Hydraulic cylinders are double acting cylinders
without cushioning connected to the 5/3 valve
system thus used in compression and expansion.
pressure differences.
• independent system to each wheel hence
neglecting the loss of power due to longer
traversing distances.
Conclusion
Suspension    Suspension
Cost-Benefit Ratio
• The cost to benefit ratio of a system was huge with millions of
dollars being spent by companies to ensure passenger
comfort.

• The use of current suspension and interfacing would save cost
by eliminating the need for a new design.

• The neural networks required to run the system are machine
independent(Java and python scripts running).
Higher
Response
Time

System                     Faster
works at                 Hardware
maximum      Limitation   Increases
efficiency                   Cost

Fail–Safe
Expensive
Future Scope

Incorporate over steer
and under steer
Driving patterns

Modifying ECU to
perform the
processing

Implementing a new
Suspension system
using a single cylinder

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