Automatic bike stand
INTRODUCTION:
In all over world everywhere motorcycle are used. The side stand plays
major roll while the vehicle is in rest position. But it has some
disadvantages takes place as while the driver starting the motorcycle,
there may be possibility of forget to release the side stand this will caused
to unwanted troubles. This is a new type of side stand which is
automatically retracting the side stand through some mechanical and
electronic arrangement. In this system microcontroller, speed sensor, dc
battery is used. Through the speed sensor, sensor sense the rotation of
the wheel and sends the signal to the microcontroller which is actuate the
dc motor which is caused the disengage the stand from the road. A
motorcycle side stand is nearly universal method of allowing a motorcycle
rider to park his vehicle easily. If this stand is in the park position while the
motorcycle is ridden through left turn a serious hazard exists. A new type
stand side stand which is automatically retracting side stand is invented to
prevent such type of accidents. Side stand mounted behind bottom
bracket and can be bolted on either clamping the chain stays, or welded in
to place as an integral part of the frame.
The motorcycle side stand consists of steel rod held in both park and
stopped position by an over centered spring. It is to provide the stand
stability and a support to the motorcycle. Many side stand designs,
attachments, mechanisms and rider warning system. Some side stand
retracts automatically when the motorcycle is lifted off the support. Some
retract if they contact the ground when the motorcycle is moving. Many
different concepts have been applied for this hazard
COMPONENT OF SYSTEM
1) Battery
2) DC motor
3) Push button
4) Microcontroller
5) Side stand
, MOTOR DRIVER (L293D)
Features:
Wide supply-voltage range: 4.5V to 36V
, Separate input- logic supply
Internal ESD protection
Thermal shutdown
High-Noise-Immunity input
Functional Replacements for SGS L293 and SGS L293D
Output current 1A per channel (600 mA for L293D)
Peak output current 2 A per channel (1.2 A for L293D)
Output clamp diodes for Inductive Transient Suppression(L293D)
DESCRIPTION:
L293D is a dual H-bridge motor driver integrated circuit (IC). Motor drivers act as
current amplifiers since they take a low-current control signal and provide a higher-current
signal. This higher current signal is used to drive the motors.
L293D contains two inbuilt H-bridge driver circuits. In its common mode of
operation, two DC motors can be driven simultaneously, both in forward and reverse
direction. The motor operations of two motors can be controlled by input logic at pins 2 & 7
and 10 & 15. Input logic 00 or 11 will stop the corresponding motor. Logic 01 and 10 will
rotate it in clockwise and anticlockwise directions, respectively.
Enable pins 1 and 9 (corresponding to the two motors) must be high for motors to
start operating. When an enable input is high, the associated driver gets enabled. As a result,
the outputs become active and work in phase with their inputs. Similarly, when the enable
input is low, that driver is disabled, and their outputs are off and in the high-impedance state.
Block diagram:
, FIG: BLOCK DIAGRAM OF L293D
Pin Diagram:
INTRODUCTION:
In all over world everywhere motorcycle are used. The side stand plays
major roll while the vehicle is in rest position. But it has some
disadvantages takes place as while the driver starting the motorcycle,
there may be possibility of forget to release the side stand this will caused
to unwanted troubles. This is a new type of side stand which is
automatically retracting the side stand through some mechanical and
electronic arrangement. In this system microcontroller, speed sensor, dc
battery is used. Through the speed sensor, sensor sense the rotation of
the wheel and sends the signal to the microcontroller which is actuate the
dc motor which is caused the disengage the stand from the road. A
motorcycle side stand is nearly universal method of allowing a motorcycle
rider to park his vehicle easily. If this stand is in the park position while the
motorcycle is ridden through left turn a serious hazard exists. A new type
stand side stand which is automatically retracting side stand is invented to
prevent such type of accidents. Side stand mounted behind bottom
bracket and can be bolted on either clamping the chain stays, or welded in
to place as an integral part of the frame.
The motorcycle side stand consists of steel rod held in both park and
stopped position by an over centered spring. It is to provide the stand
stability and a support to the motorcycle. Many side stand designs,
attachments, mechanisms and rider warning system. Some side stand
retracts automatically when the motorcycle is lifted off the support. Some
retract if they contact the ground when the motorcycle is moving. Many
different concepts have been applied for this hazard
COMPONENT OF SYSTEM
1) Battery
2) DC motor
3) Push button
4) Microcontroller
5) Side stand
, MOTOR DRIVER (L293D)
Features:
Wide supply-voltage range: 4.5V to 36V
, Separate input- logic supply
Internal ESD protection
Thermal shutdown
High-Noise-Immunity input
Functional Replacements for SGS L293 and SGS L293D
Output current 1A per channel (600 mA for L293D)
Peak output current 2 A per channel (1.2 A for L293D)
Output clamp diodes for Inductive Transient Suppression(L293D)
DESCRIPTION:
L293D is a dual H-bridge motor driver integrated circuit (IC). Motor drivers act as
current amplifiers since they take a low-current control signal and provide a higher-current
signal. This higher current signal is used to drive the motors.
L293D contains two inbuilt H-bridge driver circuits. In its common mode of
operation, two DC motors can be driven simultaneously, both in forward and reverse
direction. The motor operations of two motors can be controlled by input logic at pins 2 & 7
and 10 & 15. Input logic 00 or 11 will stop the corresponding motor. Logic 01 and 10 will
rotate it in clockwise and anticlockwise directions, respectively.
Enable pins 1 and 9 (corresponding to the two motors) must be high for motors to
start operating. When an enable input is high, the associated driver gets enabled. As a result,
the outputs become active and work in phase with their inputs. Similarly, when the enable
input is low, that driver is disabled, and their outputs are off and in the high-impedance state.
Block diagram:
, FIG: BLOCK DIAGRAM OF L293D
Pin Diagram:
