International Journal of Engineering Trends and Technology (IJETT) – Volume 26 Number 3- August 2015
Exhaust Based Automated Manual Transmission System for
Vehicles
Ron Prodhan
Student (B.Tech.), Department of Electronics and Communication Engineering, Institute of Engineering and
Management, Salt Lake, Kolkata-700091, West Bengal, India
Abstract-This paper describes an innovative
approach of reusing waste automobile exhaust. In
this design I am using automobile exhaust and
converting them into a working fluid for powering
automobile gear system. The main purpose of this
design is to claim maximum amount of energy which
would be lost out from the vehicle. This paper is a
green technology based design which is also an
innovative approach for designing an automated
manual transmission.
Keywords- exhaust based pneumatic double acting
piston type actuating cylinder; automatic control of
manual transmission; exhaust based transmission
system; green technology.
I.
INTRODUCTION
This system is a system which is compatible with all
kinds of automobile which run on manual
transmission systems. This is basically automated
control of manual transmission system. This system
will require zero energy output from a vehicle as it
will employ the automobile exhaust which is released
from the engine of the car. That is the force of the
engine exhaust is the main working fluid. Moreover
minimum possible changes are employed to a manual
transmission system automobile when it is converted
to an auto transmission type vehicle. This system can
be easily integrated in all manual transmission based
automobiles. Therefore the working cost and
maintenance cost of this proposed auto transmission
system is lower than all other existing systems.
II. MECHANICAL DESIGN OF THE SYSTEM
This new automated manual transmission system will
use a regular gearbox used in a five speed manual
transmission system. In this arrangement and all
other manual transmission system, each gear is
engaged to the drive shaft with the help of a collar.
The collar of the first and second gear is attached to a
single shaft which is controlled by the user with the
help of a joystick. In the same way the third and
fourth; the fifth and reverse are attached to a single
shaft connected collar [5].
This part will be automated in this design. The
joystick that the user uses for manually engaging the
gears to the power train will be replaced by a
mechanical system powered by automobile exhaust.
This mechanical system will consist of two solenoid
valves which will direct the exhaust.
Figure 1. Pneumatic Gear Engaging Mechanism
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International Journal of Engineering Trends and Technology (IJETT) – Volume 26 Number 3- August 2015
III.
GEAR AUTOMATION PART DESIGN
This will consist of a pneumatic cylinder which will
be actuated by the automobile exhaust. This
pneumatic cylinder would be electromagnetically
controlled.
The fluid shown in the diagram is present in a
chamber. This fluid is a special fluid which is
commercially available and known by the name
FERROFLUID. This fluid has nano-size iron
particles which get attracted towards a magnetic field
and become a solid due to coagulation [4].
This special property of the fluid will be used to
ensure that the actuating rod moves only in one
direction. The complete design is shown in figure 1
and figure 2.
IV.
WORKING OF THE MECHANICAL PART
At the presence of magnetic field the housing
chamber will remain fixed in its position. The shaft
shown in the last two diagrams is free to move but is
constrained by the thrust plate as shown in the next
diagram. When one of the housing chambers is
energized the shaft can move in the other direction
only. As it is constricted close to the neck of the
thrust plate, when the thrust plate receives the
exhaust, it pushes the shaft along with itself in the
direction
of
the
exhaust.
.
Figure 2. Pneumatic Gear Engaging Mechanism(2)
When the next or previous gear is applied the
solenoid valves are interchanged and the other
housing chamber is energized and previous one de-
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energized. If the gear pair is to remain at neutral both
the housing chambers are energized. This locks the
shaft between the two housing chambers.
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International Journal of Engineering Trends and Technology (IJETT) – Volume 26 Number 3- August 2015
Fig 3. Actuation Of First, Third, And Fifth Gears
The first, fifth and third gear are energized by the
same solenoid valve. The second, fourth and reverse
gear are simultaneously actuated by another solenoid
valve. This is shown in the figures given below. The
order in which the two solenoid valves control the
exhaust flow is shown in figure 3 and 4.
Fig 4. Actuation Of Second, Fourth And Reverse Gears
This will initiate the forward and backward motion of
all three pairs of gears. The transition made will
affect all three gears and so an electromagnetic
ISSN: 2231-5381
control is described in the next section. This will
direct the control to the desired gear.
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International Journal of Engineering Trends and Technology (IJETT) – Volume 26 Number 3- August 2015
Fig 5. Electromagnets Placed On The Pneumatic Cylinder
V.
ELECTRONIC CONTROL
Electonic control will consist of a dynamo attached to
the crank shaft of the vehicle. The voltage generated
will be used for triggering the gears [2]. The control
will be done through electromagnets placed on the
pneumatic cylinder. The arrangement of the
electromagnets is shown in figure 5.
The electromagnets when activated will lock the fluid
housing chamber. This would allow only one
directional motion of the shaft. This would ensure
that the desired gear of the three gears is activated.
The desired gear is activated by a simple switching
arrangement as shown. The electromagnet will be
triggered using the circuit shown in figure 6 [1].
Fig 6. Electronic Gearing Control
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International Journal of Engineering Trends and Technology (IJETT) – Volume 26 Number 3- August 2015
VI.
ACKNOWLEDGEMENT
CONCLUSION
This arrangement is not limited to five speed
gearbox. It can be increased for any odd number of
gears and a reverse gear. The total number of gears
must be even. It can be easily integrated with paddle
shift gears. With simple modification of the above
circuit, the modifications to the gearing system can
be done. This is a perfectly flexible system for easy
integration in any automobile.
REFERENCES
1. A. S. Sedra and K.C. Smith, Microelectronic
Circuits, Oxford University Press, India,
2013
2. B.L. Theraja, A Textbook of Electrical
Technology, S.Chand & Company Pvt. Ltd.
India, 2013.
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I would like to give my sincerest and heartiest thanks
to my professors for their support encouragement and
invaluable
detailed
advices
on
grammar,
organization, content, and the theme of the paper. I
would like to thank from the core of my heart to my
parents for their constant support in this endeavor.
3. Ferrofluid, From Wikipedia, the free
encyclopedia,
https://en.wikipedia.org/wiki/Ferrofluid
4. Manual transmission, From Wikipedia, the
free encyclopedia,
https://en.wikipedia.org/wiki/Manual_trans
mission
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