Project

Aim:

TO make as the simulink model for All Terrain Vehicle, [ATV]

Objective:

To make the simulink of ATV

To prepare a technical explaining the model of ATV

Explanation:

The 'ATV' is a light utility vehice 'LUV' its a quad bike

Its travels on low pressure tyres and has a seat is straddled by the operation along with handlebar,

Components of ATV:

• vehicle body
• suspension
• engine
• CVT
• weel
• main fram

Model:

Blocks used:

• signal builder
• chart
• scope
• simple gear
• simulink-ps converter
• goto
• engine sen
• fromm
• generic engine
• mechanical rotational reference

CTV subsystem:

CTV main component,

• drive pulley
• belt
• driven pulley
• variator

Condition:

If drive pulley move inward while the driven pulley moves outwatd then it will lead to overdrive,

If the drive pulley moves outward and the driven pulley moves inward then it will lead to speed reduction

Vehicle body:

Represents a two axle vehicle body in longitudinsl motion ,the block account for body mass ,aerodynamic drag ,road incline and weight distribution between axles

due to acceleration and road profile the vehicle can have the same or a different number of wheels on each axle, optionally include the vehicle does not move vertical relative tothe ground

It consist four wheels two wheels at the rear and the other at the front the rear wheel is connected with a duble shoe brake which

represents abrake arranged as two pivoted rigid shoes stmmetrically installed inside or outside a drum and operation by one actuator ,

Case1: ATV & CVT

Engine torque -speed curve:

The data is extracted using the GRP command which is available in the workspace ,

CTV out:

Result:

Engine speed

Speed:

The output is velocity,distance,throttle,break,an the retio is 0.3 is considered then the velocity shows a sudden drop in the speed hence we change then it 0.5 get the flow of velocity

CTV run speed:

Case 2: ATV & CTV Dashboard

Explanation:

By using 8 holes of 10mm diameter in the disk the temperature of the disk is reduced and more area is under reduced temperature. Hence by using holed disk the life of the
disk can be improved from thermal degradation.

We researched and compared multiple steering systems. Weneed a steering system that would be easy to maintain, provideeasy operation, excellent feedback, cost efficient and compatible
to drivers ergonomics.

Result: CTV

Engine speed:

vehicle speed:

Case 3: ATV & CTV lookup table

Result:

lookup table

CVT ratio

Engine speed:

Case 4: ATV & CTV dashboard using lockup table

Explanation:

To properly approximate the loading that the vehicle will see an analysis of the impact loading seen in various types of accident was required. To properly model the impact forces, the
deceleration of the after impact needs to be found.

To approximate the worst case scenario that the vehicle will see, research into the forces the human body can endure was
completed

Result:

visualization

Engine speed:

vehicle speed:

Conclusion:

We ran a system level ATV all-trrain vehicle model using CVT with dashboard and lookup table based on the above -obtaine result in the engine speed an vehicle performance.

References:

• The BAJA ATV modle
• GitHUb file