GO KART FOR SHANE

CLIENT CONTACT:Shane Davis,6 Sunrise Drive, Columbia CT954-850-5448quarrion1227@gmail.com

TEAM 3:Jeff MarcelusBramatej MekaRaymond Songer

OVERVIEW

About the Client

Limitations

Specifications

Implementation

Acknowledgements

Shane Davis Age: 20 years old

Weight: 120 pounds

Height: 5’ 3”

Disability: Cerebral Palsy Spastic Quadriplegia

Limitations Cerebral Palsy and Spastic Quadriplegia

Spastic quadriplegia is a form of cerebral palsy in which all four limbs are affected.

The condition is referred to as spastic rather than paralysis because the patient has some movement in all of his limbs.

Shane has very limited hip movement and strength, which when combined with severe quadriplegia leaves him confined to a wheel chair.

Product Specifications

Major Components

90cc electric start Gasoline engine

Full support seat with armrest control panel Cushioned seat with 5-point

harness

Fully automated hydraulic braking

Fully automated electric steering

Fully automated throttle

Automatic transmission with reverse

4-wheel independent suspension

Major Modifications Made

Joystick controller Multidirectional for throttle,

braking, and steering control

Ability to use a conventional driving setup

Low resistance steering wheel with electric steering

Remote starter with kill switch

Onboard kill switch

Rugged electronics for off-road use

Mechanical Aspect of Kart

90cc 4-stroke gasoline motor with electric start

Steel frame Dimensions (L*W*H):

66”x42”x40”

Hydraulic disc brakes

220 pound weight capacity

Automatic transmission with reverse

Full suspension with 3.3” of travel

All terrain tires

Control Panel

The control panel will allow Shane to start/stop the engine, control the lights, and let him know what gear he is in

TWO CONTROL MODES

Conventional Driving Mode

A conventional driving mode will be available for Shane The brake and gas pedal are both

depressed manually The steering wheel will input

information to a rotational potentiometer This information will be relayed through a

microcontroller which will engage the electric motor and turn the front wheels

Joystick Mode

The go kart will have the ability to be controlled by a bidirectional joystick

Forward: Throttle (+Y) This engages a linear actuator that pulls a

cable which in turn depresses the gas pedal

Backward: Brake (-Y) This engages a linear actuator that directly

depresses the brake pedal

Left to Right: Steering (-X to +X) This engages a DC motor which is

connected to the steering column via a chain and sprocket system

Steering The steering is controlled with a Dayton Gear-motor that

has been geared to provide 75 in-pounds of torque Controls steering via a chain and sprocket system

Replaces the input to the steering column and controls the rack and pinion

The motor and steering column will have the same size sprocket as the motor, providing enough torque to turn the front wheels with a 1:1 ratio

Feedback to the microcontroller is provided by a linear sensor potentiometer

Throttle and Braking

Both the throttle and the braking are controlled by high speed linear actuators

Throttle- Linear actuator pulls on a pulley to accelerate.

Braking- Linear actuator presses against the brake.

SEAT Bucket Seat

Good lumbar support (padding) Taken from an electric wheel

chair Provides client with added

insurance of arm rests The seat is capable of folding

down on itself to provide access to the motor and electronics

5 point harness Will keep the client secure

when navigating difficult terrain

TWO MOST IMPORTANT

PARTS OF THE PROJECT

Microcontroller

Controls the entire electronic system (BRAIN)

Arduino UNO

PWM (PULSE WIDTH MODULATION) outputs

Firgelli Linear Actuator Control

Board LAC Firgueli

Controls the speed, retraction limits, and precision

Gives feedback regarding the position of the motor or actuator to the microcontroller

Acknowledgements

The Davis Family

Dr. John Enderle

Fred Wright

Ian Wallis

Marek Wartenberg

QUESTIONS?