Transcript Front-wheel drive car

Front-wheel drive car.
*The FWD platform is
used in many reliable
vehicles ,such as a
Honda Accord or
Toyota Camry.
* FWD mean that the two
forward vehicles are
responsible for moving
the car .
Main points.
1-Parts of FWD & how does it work.
2-Advantages .
3-Disadvantages .
4-FWD VS RWD .
*PARTS OF FWD.
1-gear box.
it take the motion from the
engine and we can modify the
received velocity on it
2-differential.
it is apart mounted by bolts
downward the gear box and
take the output motion from the
gear box and deliver it to the
drive shafts (CV joints).
3-drive shafts.
it take the motion from the
differential to the two vehicles.
*ADVANTAGES.
1- Front-wheel drive is more
speedy than rear wheel drive
car because of the
mechanical losses reduces
due to short distance
between the engine and the
differential .
2-Economic in using petrol due
to the push power is nearby
to the engine.
3-It is also lighter than the rearwheel drive.
*DISADVANTAGES.
1- FWD depends on drive shafts
which contain CV joints which
allow the vehicles to move in
all directions that have a lot of
defects.
2-Expensive maintenance.
3-Difficulty to direct the car when
we start moving with high
speed.
4- Unbalanced car because the
mass is concentrated at the
forward part of the car only
*FWD VS RWD
1- Load on tires
*The biggest benefit to rear wheel drive is that it spreads the loads of the car
across all four tires of a car , the rear wheel do the pushing while the front
wheels are for the steering duties .
* In front wheel drive cars the front tires must perform both functions , the engine
acceleration\deceleration forces act on the front wheels that’s beside the
steering duties.
2- Better weight balance
*Rear wheel drive cars have the engine in the front and the drive components in
the rear , but the front drive cars have every thing up front .
*So by balancing the front and rear of the car you can improve the handling,
acceleration, braking and thus safety of the car .
3-Torque Steer
*Front wheel Drive cars have a problem known as Torque Steer. This occurs when
the acceleration of the engine effects the cars steering . Since the driveline is
connected to the steering wheels the torque of the engine applies force to the
front wheels causing the car to pull to the right during acceleration.
*Rear Drive cars do not have this problem since the engine is not connected to
the steering gear.
‫‪FRONT-WHEEL DRIVE CAR.‬‬
‫االسم‬
‫حممود فتحي عبدالعليم‬
‫حممد حمسن امحد‬
‫حممد فوزي سليمان‬
‫حممود أمحد ثروت‬
‫عبداملنعم سعيد عبداملنعم‬
‫مقدم للدكتور‪ /‬سعد عبدالحميد‪.‬‬
‫الفصل‬
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