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Hy-wire cars - 123SeminarsOnly_1_

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Hy-wire cars - 123SeminarsOnly_1_ Powered By Docstoc
					            -BY
  ASHISH PANDEY
(TE MECHANICAL)
   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.
   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.
       Two basic elements
        largely dictate car
          design today:



  internal
                              hydraulic
combustion
   engine                     linkages
   An 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.
DEPLETING CONVENTIONAL
        SOURCES

 INCREASING POLLUTION


   GLOBAL WARMING
     • Instead of an engine, it has a fuel cell stack,
       which powers an electric motor connected to
1.     the wheels.

     • Instead of mechanical and hydraulic linkages,

2.     it has a drive by wire system based on input
       from an electronic controller.

     • This is the same control system employed in
3.     modern fighter jets as well as many
       commercial planes.
   A 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
   There is no steering wheel, there are no
    pedals and there is no engine compartment.
   Every 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.
   It’s the user
    machine interface.
   Can slide to either
    side of the vehicle
   Has two
    ergonomic grips,
    positioned to the
    left and right of
    small LCD monitor
    .
                •Glide the grips up and down lightly
For steering

                • Turn either grip, in the same way
To accelerate    you would turn the throttle on a
                 motorcycle


                •Squeeze either grip.
For braking
1.   They also generate electricity by chemical
     reactions like batteries.
2.   Can be continuously recharged
3.   Very efficient.
 Anode side:    Cathode side:    Net reaction:


• 2H2 => 4H+   • O2 + 4H+ +     • 2H2 + O2 =>
  + 4e-          4e- => 2H2O      2H2O
   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
Power in remote areas such as parks


       Military application


     Home power generation


          Submarines
1   •FUEL EFFICIENT
2   •ENVIRONMENT FRIENDLY
3   •HIGH STABILITY
4   •HIGHLY SPACIOUS
5   •DRIVER FRIENDLY
6
    •FREEDOM OF INDIVIDUAL EXPRESSION
LOW SAFETY

STORAGE OF HYDROGEN FUEL

PRICING
   General 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.
THANK YOU

				
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posted:6/14/2013
language:English
pages:22