BUTTON OPERATED GEAR SHIFTING MECHANISM It is used for operate gear by using a single button so that disabled person can run the vehicle

1. SUBMITTED TO:- SUBMITTED BY:-
Mr.Vishal Anand GROUP MEMBER
Asst Professor SEC-A
Department of Mechanical Engg

2. PROJECT STAGE-II
PROJECT BY:-
1. ABHISHEK BAIRWA(7ME-05)
2. ABU REHAN UMAR(7ME-09)
3. ANIS AHMAD(7ME-23)
4. ANIS AKHTER(7ME-24)
5. FAIZ ALAM(7ME-50)
GUIDED BY:-
Asst Prof. ARVIND KUMAR SINGH
Department of mechanical engineering
JNU Jaipur

3. INDEX
 ABSTRACT
 INTRODUCTION
 COMPONENT
 DESIGN AND CALCULATION
 CONSTRUCTION
 WORKING
 ADVANTAGE
 DISADVANTAGE
 CONCLUSION
 REFERENCES

4. ABSTRACT
 There are disclosed a button operated gear change
control apparatus for an automobile and a method of
controlling such apparatus. A rotational output
between two gears of a hollow shaft is connected to d.c
motor. When a gear shifting-up of an automatic
transmission is to be effected, the load applied by the
load device is increased, or the load is connected to an
output rotation shaft of the engine via a selectively-
connecting device.

5. INTRODUCTION
 A gear shifting mechanism is designed and applied to
make the shifting process more expeditious and less
destructible for the driver.
 This project aims to ameliorate gear shifting process
utilizing contrivances as: a manual four speed gear
box, two pneumatic double acting cylinders, two
pneumatic two position five ways directional control
valves, , an electrical motor, a belt, two pulleys, limit
switches, push buttons, bulbs, a table (holder) and
power supply.

6.  According to suggested gear shifting mechanism the
driver can cull the transmission gear ratio without
moving his hands from the steering wheel by putting
the gear shifting push buttons on the steering wheel.
 The development has concluded withal the gearbox,
which became much smoother and engenders less
noise.

7. COMPONENT LIST
MOTOR
 A DC motor is any of a class
of rotary electrical machines
that converts direct current
electrical energy into
mechanical energy.

8. SOLENOID
 A solenoid valve is
an electromechanically ope
rated valve. The valve is
controlled by an electric
current through a solenoid.

9. PNEUMATIC CYLINDER
 Pneumatic cylinder
are mechanical devices which
use the power of compressed
gas to produce a force in a
reciprocating linear motion.
Like hydraulic cylinders,
something forces a piston to
move in the desired direction.

10. GEAR
 A gear is
a rotating machine part
having cut teeth, which
mesh with another
toothed part to
transmit torque. Geared
devices can change the
speed, torque, and
direction of a power
source.

11. BATTERY
 lead-acid batteries are widely
used inautomobile starting,
lighting and ignition its ability
to supply high surge
currents means that the cells
have a relatively large power-
to-weight ratio. These
features, along with their low
cost, makes it attractive for
use in motor vehicles to
provide the high current
required by automobile starter
motors.

12. BEARING
 A bearing is a machine
element that constrains
relative motion to only the
desired motion, and
reduces friction between movi
ng parts.

13. DESIGN
 Frame size=18*26 inch
 Height of frame=20inch
 Outer Diameter of Bearing (D) = 35 mm
 Thickness of Bearing (B) = 12 mm
 Inner Diameter of the Bearing (d) = 15 mm
 Length of shaft=70 inch
 Diameter of shaft=1 inch
 Big gear= 80 pitch circle diameter
 Small gear= 20 pitch circle diameter
 D.C motor=12v,2amp
 Maximum Speed of motor = 180rpm
 Gear ratio=no of teeth on big gear/no of teeth on small gear
80/20=4

14. CONSTRUCTION
 The two solenoid valves are connected to a compressor with the
avail of hoses of ∅6mm from which pressurized air is extracted.
The solenoid valves are followed by two pneumatic cylinders
with the avail of air hoses. The cylinders are followed by a clutch
pedal. Contiguous to the clutch pedal gear box and a motor
arrangement is present. The construction withal includes a
proximity sensor which senses the haste of the wheel. The
precise signals are sent to the solenoid valves by the control unit
through the relays. Ergo the input is speed of the wheel sensed
by a sensor and the output is shifting of gear accordingly. The
puissance to the control unit is supplied from the 12V battery as
well the shifting of gear monitored on an LCD. It withal consists
of DC motor, ATMEGA Development board, speed regulator
(expeditor), transformer

16. WORKING PROCEDURE
• The pneumatic circuit is as shown in fig, the motor is
started to drive the main shaft initially the gear box is
in neutral i.e., the output shaft is stationary condition.
When the 5/2 way direction control valve -1 is operated
the cylinder -1 operates the piston to move in the right
hand direction thereby bringing the 3rd gear into
engagement, and thus the output shaft starts to rotate
thereby transmitting power from the input (
motor/engine) to the output ( differential). Electro-
Pneumatic gear shifting mechanism

17. BLOCK DIAGRAM

18. ADVANTAGE
 It requires simple maintenance cares.
 The safety system for automobile.
 Checking and cleaning are easy, because of the main parts are
screwed.
 Easy to Handle.
 Low cost automation Project.
 Repairing is easy.
 Replacement of parts is easy.

19. DISADVANTAGE
 Initial cost is high.
 The system is complicated one.
 Battery should be charged all time.
 Gear breaking possible.

20. CONCLUSION
 The project presented has involved the development
and implementation of automatic transmissions for
bikes and cars. The motivation of this work is to
implement this idea in clutch featured bikes with a
suitable clutch control. The automatic transmission
can be also used in 5 and 6 speed versions by altering
few changes in the program. According to the achieved
results the mechanism done is reliable if it is installed
in bikes and cars and very helpful for handicapped
because the gear is changed by the help of button not
by lever.

21. REFERENCES
 P. Alexander M.E, T. Sudha M.E, M. Omamageswari M.E,
“Automatic Gear Transmission in Two Wheelers using
Embedded System”, J of IJARET, Volume 3, Issue 2, July-
December (2012), pp. 164-175.
 Pettersson, M.; Nielsen, L. Gear shifting by engine control.
IEEE Trans. Control Syst. Technol. 2000, 8, 495–507.
 Inalpolat. M. and A. Kahraman, 2008. “Dynamic modelling of
planetary gears of automatic transmissions. Proc. I Mech E Part
D”, J. Automobile,Eng., 222: 229-242.
 Glielmo, L., L. Lannelli and V. Vacca, 2006. “Gearshift control
for automated manual transmissions”, IEEE/ASME Tran.
Mech., 11(1): 17-25.