THE HY-WIRE CAR

Good Morning “Everyone”

GUIDED BY

M KRISHNAMURTHY M.Tech

Asst. ProfessorDept. Mechanical Engineering

PRESENTED BY

KARISIDDESHWARASWAMY K M

usn:4BD09me049

(Hydrogen drive-by-wire)

 Cars are immensely complicated machines, but they do an incredibly simple job.

Most of the complex stuff in a car is decided to turning wheel The two basic elements that largely dictate car design today are

1. The internal combustion engine 2. Mechanical and hydraulic linkages The Hy-wire (Hydrogen drive-by-wire) is a concept car from General

Motors originally introduced in January 2002 The car runs on hydrogen fuel cells and uses a drive-by-wire system

Introduction

EXTERIOR INTERIOR

The defining characteristic of the Hy-wire is that it doesn’t have either of those two things: engine and mechanical and hydraulic linkages.

Instead of an engine, it has a fuel cell stack. Instead of mechanical and hydraulic linkages, it

has a drive by wire system.

HY-WIRE BASICS

The Hy-wire has wheels, seats and windows like a conventional car, but the similarity pretty much ends there. There is no engine under the hood and no steering wheel or pedals inside.

A fuel cell is an electrochemical energy conversion device that converts hydrogen and oxygen into water, producing electricity and heat in the process. It provides a DC (direct current) voltage

It can continuously recharge a fuel cell by adding chemical fuel- hydrogen for an onboard storage tank

FUEL CELL –ON HY-WIRE

The type of fuel cell that is used in the Hy-wire car is the Proton exchange membrane fuel cell.

The four basic elements of a PEM fuel cell are:-

The anode, the negative post of the fuel cell The cathode, the positive post of the fuel cell The electrolyte is photo exchange memberThe catalyst is special material to take

reaction

Proton exchange membrane fuel-cell

The working of PEMFC

Chemistry of a Fuel Cell Anode side: 2H2 => 4H+ + 4e- Cathode side: O2 + 4H+ +4e- => 2H2O Net reaction: 2H2 + O2 => 2H2O

Fuel-Cell stack

It is made up of 200 individual cells connected in series.

It collectively provide 94 kilowatts of continuous power and 129 kilowatts at peak power.

It is kept cool by a conventional radiator system

It delivers DC voltage ranging from 125 to 200 volts

Hydrogen tanks and fuel-cell stack in the Hy-wire

DRIVE BY WIRE TECHNOLOGYThe ‘brain’ of Hy-Wire is a central computer housed in the middle of the chassis. It sends electronic signals to

The motor control unit to vary the speed. The steering mechanism to maneuver the car. The braking system to slow the car down .

It is connected to an array of advanced sensors. The computer is connected to the body’s electronics through universal docking ports.

THE TWO ERGONOMIC GRIPSWITH A SMALL LCD MONITOR TOGETHER

X-DriveX-drive is the driver’s control unit .It has two ergonomic groups , positioned to the left and right of a small LCD monitor.The color monitor in the center of the controller displays speed, mileage, fuel level and the rear-view images from video cameras on the sides and back of the car, in place of conventional mirrors A second monitor, on a console beside the driver, shows you

stereo, climate control and navigation information.

THE X-DRIVE CAN SLIDE TO EITHER SIDE OF THE VEHICLE

HUGE FRONT WINDSHIELD A FLAT FIBERGLASS FLOOR STEEL PASSENGER COMPARTMENT LOTS OF LEG ROOMS FOR PASESENGER IMPROVED SAFETY AS THE BULK OF THE

VEHICLE IS IN THE BOTTOM SECTION OF THE CAR

AUTONOMY & DESIGN OF THE HY-WIRE

AUTONOMY DESIGN OF THE HY-WIRE

AUTONOMY WITH & WITHOUT A BODY ATTACHED

AUTONOMY AT THE 2002 NORTH AMERICAN INTERNATIONAL AUTO

SHOWSKATEBOARD’ CHASSIS

ADVANTAGES

In Hy- wire car the central computer will be able to monitor driver input which will make it much safer.

This car can resolve the major fuel problems and safety issues.

This is eco-friendly car.

DISADVANTAGES

Low safety -An electrical failure would mean total loss of control.

Storage and transportation of hydrogen fuels – production , transportation and storage of hydrogen for the on board fuel cell stack.

Pricing - With the current status of development, manufacturing of the Hy-wire cars on a mass scale would not at all be economical.

Fuel cells offer a promising alternative

They need to be compelling, affordable, and profitable.

The main challenge is in the field of storage of hydrogen

FUTURE OF HY-WIRE

TOP SPEED WEIGHT CHASSIS LENGTH WIDTH THICKNESS WHEELS TIRES FUEL-CELL POWER FUEL-CELL–STACKVOLTAGE MOTOR

161kmph (100mph)1898kg (4185 ponds)4.30M (14f,3”)1.67M (5f,5.7”)0.28M (11”)Eight-spoke, light alloy wheelsFRONT- 20 inch,BACK-22 inch94 kilowatts continous,129 kilowatts peak125 to 200 volts250 to 380 volt 30-phase asynchronous electric motor

HY-WIRE CAR SPECIFICATION

Conclusion The Hy-wire concept has so profoundly brought

about changes in the automotive industry. GM and other auto makers are planning to launch

such a vehicle for the public usage by the year 2020.

Thank

You.References:Book: King, Ralph (October 1, 2003). "GM'S Race to the Future".

Chertoff, Adrian. "The 2003 Hy-wire Concept Car". Harris, Tom. "How Stuff Works: How GM's Hy-wire WorksLinks: www.wikipedi.com

www.generalmoters.com www. fuelcellonline .com

QUESTIONS