2IntroductionThe 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.Uses a drive-by-wire system, meaning that the car is controlled electronically.No need of conventional engine.All equipments needed are in a very compact place.
3Two basic elements largely dictate car design today: Why Need HY-WIRE CARTwo basic elements largely dictate car design today:internal combustion enginehydraulic linkages
4MAKING MORE ROOMAn internal combustion engine requires a lot of additional equipment to function correctly.No matter what else they do with a car, designers always have to make room.The same goes for mechanical and hydraulic linkages.But the basic function of a car remains the same however they are built.
6HY-WIRE BASICS1.Instead of an engine, it has a fuel cell stack, which powers an electric motor connected to the wheels.2.Instead of mechanical and hydraulic linkages, it has a drive by wire system based on input from an electronic controller.3.This is the same control system employed in modern fighter jets as well as many commercial planes.
7Drive by wire systemA computer actually operates the components that move the wheels, activate the brakes and so on, based on input from an electronic controller.Electromechanical actuators and human- machine interfaces such as pedal and steering feel emulators are used.Very user friendly and comforting system
8BASIC STRUCTUREThere is no steering wheel, there are no pedals and there is no engine compartment.
9CHASSISEvery piece of equipment that actually moves the car along the road is housed in an 11-inch-thick (28 cm) aluminium chassis at the base of the car.Enough space inside.Better drive view.
16Fuel stack Made up of 200 individual cells connected in series. Collectively provide 94 kilowatts of continuous power and 129 kilowatts at peak power.The motor controller boosts this up to 250 to 380 volts and converts it to AC current to drive the three-phase electric motor that rotates the wheels
17Other applications of fuel cells Power in remote areas such as parksMilitary applicationHome power generationSubmarines
18Hydrogen fuel cells are very efficient compared to what we have now
19Advantages FUEL EFFICIENT ENVIRONMENT FRIENDLY HIGH STABILITY 1FUEL EFFICIENT2ENVIRONMENT FRIENDLY3HIGH STABILITY4HIGHLY SPACIOUS5DRIVER FRIENDLY6FREEDOM OF INDIVIDUAL EXPRESSION
20SHORTCOMINGSLOW SAFETYSTORAGE OF HYDROGEN FUELPRICING
21FUTURE OF HY-WIRE CARSGeneral Motors says it fully intends to release a production version of the car in 2010, assuming it can resolve the major fuel and safety issues.It is certainly a good illustration of various ways cars might evolve in the near future.