CONNECTION THAT MOVES THE WORLD

Borna BrlošićCentar izvrsnosti KoprivnicaMentor: Ksenija Varović

1886 – The first car was „born” – invented by CARL BENZ, forever changes the way people move and sparks the innovation process that continues to this day;

1893 – the first diesel engine was invented by RUDOLF DIESEL – first truck with build in diesel engine was produced in 1924

• during 20th century cars, trucks and buses has become main means of transport

Today our life's are interconnected with cars, trucks and buses – they, together with other means of transport, allow us to travel freely so that we can meet new people, discover different cultures and regions

Let’s take a look togetherLet’s take a look together

Each car is structured out of:

Geometry is a ground of all shapes that creates one car – rectangular and square shapes, circles, trapezes and splines

Geometry is used to determine main characteristics of suspension and steering

Small explanation

Car needs to have sufficient engine power to prevail all the resistance which appears at certain speed and road conditions.

Engine power is created by thermodynamic process in cylinder

Transmission is used for controlled application of engine power.

G2G1

G2G1

Z1 – no of teeth of gear G1Z2 – no of teeth of gear G2

D1 – clevelage circle diameter gear G1D2 – clevelage cirlce diameter gear G2

n1 – revolution speed gear G1n2 – revolution speed gear G2

Engine torque and engine revolution speed is transferred through transmission onto car wheels

Through this journey we have:

cruising nice and smoothly on different roads and gravel paths and enjoying our ride thanks to great suspension

created explosion in combustion engine → force on piston

But does anybody know how to stop the car before it actually

runs out of fuel?

with this force we have turned engine crankshaft and created engine torque and power

accelerated car by switching gears and pressing the throttle turning right and left with the help of steering unit

We all like to read what is acceleration time for certain cars, but what about braking distance needed to safely stop the car?

How do we calculate maximum braking deceleration?

Self driven cars, smart braking systems, maybe flying cars? Everything is possible; behind all those future achievements of the human kind will always be one basic ground – BEAUTY OF MATH