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SCB 11303
AUTOMOTIVE FUNDAMENTAL ENGINEERING
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OBJECTIVE
1. To learn abaou t the system of suspension
that used in nissan gt—r .
2. to know about the geometry of double wishbone suspension.
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SUSPENSION SYSTEM
Figure 1.1: The mechanism that optimizes the GT-R’s tire
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1. the term given to the system of springs,
shock absorbers and linkages.
2. contributing to the car’s handling andbraking.
3. keeping vehicle occupants comfortable.
4. protects the vehicle itself and any
cargo or luggage from damage and
wear.
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DOU LE WHISH ONE
SUSPENSION
Consists of upper and lower arm suspension
known as independent suspension
using two wishbone-shaped arms to locate
the wheel. Each wishbone or arm has two mounting
points to the chassis and one joint at the
knuckle.
The shock absorber and coil spring mount tothe wishbone to control vertical movement.
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ADVANTAGES OF WISHBONE SUSPENSION
more rigid and stable than other suspension systems,
suspension provides the engineer more free parameters
rather than some other types of suspension do.
Provides increasing negative camber gain all the way to
full jounce travel,
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DISADVANTAGES OF WISHBONE
SUSPENSION
may take more space and is slightly more complex thanother system.
the suspension set up it takes much longer to service and
is heavier than an equivalent
less design choice than the more costly and
complex multi-link suspension system.
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Overview of Nissan GT-R R35
Suspension
The Nissan GT-R has an advanced
suspension set-up offering excellent
straight-line stability.
There is a set-up switch which allows thedriver to access three different suspension
modes:
R (high performance),
Sports (the normal setting)
Comfort (for city driving to absorb
road bumps).
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Figure 1.3: The double wishbone of Nissan
GT-R front suspension
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DETIALS FOR NISSAN GT-R
SUSPNSION
• large high-rigidity bolts are used to
increase stiffness of the wheel-hub.
•camber bolts which allow more finely
tuned adjustment of camber and alignment
settings in order to provide an increased
tyre contact.
• The suspension is designed around the new
premium package and takes advantage of
the perfect load balance of all four
wheels
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The chassis with suspension systems
of Nissan GT-R.
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The Nissan GT-R used the adjustable
suspension with double wishbones at the
front and muti-link at the rear.
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SUSPENSION COMPONENTS
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SUSPENSION GEOMETRY
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STRUTS COMPONENTS
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STABILIZER BAR & COMPONENTS
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CONCLUSION
• Suspension system is responsible for
smoothing out the ride and keeping the car
in control.
• Suspension system maximizes the friction
between the tires and the road to provide
steering stability and good handling.
• Worn suspension components may reduce
the stability of the vehicle and reduce
driver control,
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