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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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