Présentations Powerpoint It is believed that 40-50 years down the line, all fossils fuel will be exhausted from earth. No fuel will be left for our new.

Présentations Powerpoint

It is believed that 40-50 years down the line, all fossils fuel will be exhausted from earth. No fuel will be left for our new generations.

Therefore, lets save fuel by now for future generation by changing our driving habits and adopting Eco/Technical Driving, which can save fuel :

1. Avoid excessive braking, clutching and accelerating

2. Don’t use accelerator pedal like a fuel pump

3. Don’t press the accelerator pedal more than a 70% of its throttle

Septembre 2007

1


TECHNICAL /ECO DRIVING

Septembre 2007

2

Présentations PowerpointSeptembre 2007

3

Technical Driving / Introduction

Experience show that amongst various driving styles, one of them, known as “technical driving”, leads to huge energy, parts and emissions savings.

Introduction

Accordingly, specific training sessions may help in getting such a style.


4


The following table gives, for instance, some results logged through training sessions in Some Mexican transport companies:

* South American companies use to manage energy consumption with an energy efficiency approach through km/l


5


Training session methodology The training methodology is implemented over three steps: Step 1. Free driving exercise

During this step, trainees drive as they use to do it and some specific measurements are done (trip duration, fuel consumption, number of clutch & brakes uses, etc.).

Step 2. Practical and theoretical course

During this step, individual comments are brought on the free driving exercise and in door contents are provided.

Step 3. Technical driving exercise

During this step, trainees drive according to concepts given during the course and the same measurement are done before comparison.


6

Technical Driving / Objectives

At the end of the session,participants will be able to:

Describe possible actions to reduce vehicle fuel consumption

Identify other actions to reduce vehicle fuel consumption

Describe impacts on air quality

Have a technical driving attitude


7

Technical Driving / Content

Course content

The engine and actions before driving

The cinematic chain and actions before driving

Technical driving

Energy losses

Main topics regarding transport air pollution

Other options to reduce fuel consumption and air pollution


8


1. The engine and actions before driving


9


Aspiration Compression Explosion Escape



10




11




12


2. The cinematic chain and actions before driving


13


3. Energy losses

100

20

2060

40

20

30


14


4. Technical driving

Forces applied to vehicles

Aerodynamic force

Rolling force

Slope force

Inertia force

Power required and engine available Power

Driving style


15


4. Technical driving Forces applied to vehicles

F1 = ½ ρ.Cx.S.V²

Aerodynamic force


16



F2 = K.m.g

Rolling force


17



Slope force

Θ (

F3 = m.g.sin θ


18



F4 = m.γ.i

Inertia force


19


Power is required to face all these forces.

4. Technical driving Power required and engine available power

The required power is given through the following formula:

Power = Sum of forces x Speed


20



The available power is managed by the driver through the engine and the cinematic chain.


21



IMPOSSIBLE TO DRIVE PROPERLY

WITHOUT KNOWING THESE

CURVES


22



Speed

Available power


23


4. Technical driving Driving style

The driving style is deduced from all the previous items.

Topic 1. “Green range”

Topic 2. “Plume foot”

Topic 3. “Cut peaks”

Topic 4. “Engine start and stop”


24


4. Technical driving Driving style / “Green range” (engine)

Fuel Consumption

Consumption

Acceleration

Rpm


25


4. Technical driving

DIAGRAMA DE VELOCIDADES

0

20

40

60

80

100

120

140

160

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200

RPM

KM

/H

Speed Diagram

NONO

Mechanicalfailure YES

Driving style / “Green range” (cinematic chain)


26


4. Technical driving Driving style / “Green range” (cinematic chain)

2.1.1000

..60

RR

cnV


27


4. Technical driving Driving style / “Plume foot”


28


4. Technical driving Driving style / “Cut peaks”

FUEL CONSUMPTION DECREASE (-34%)

0

10

20

30

40

50

60

70

0 9 12 21 24 33 36 45 48 57 60

Temps de parcours

(km/h)


29


4. Technical driving Driving style / “Engine start and stop”

Engine start:Launch the engine, without clutch, and ride smoothly during few kilometers (water at 70°/80°).

Engine stop:Wait few seconds, without acceleration (in particular if there is a turbo).


30


5. Main topics regarding transport air pollution

NOx Emissions / Diesel Private Car


31


6. Recent developments regarding air pollution


32


6. Recent developments regarding air pollution

GPL (Petrol Liquid gas)

GNC (Compressed Natural gas)

Electric (Pure / Hybrid / Fuel Cell)

Bio Fuels (Vegetal Oil / Alcohol)


TASHI DELEK

Septembre 2007

33

Présentations Powerpoint It is believed that 40-50 years down the line, all fossils fuel will be exhausted from earth. No fuel will be left for our new.

Documents

technical driving exercise

technical driving objectives

driving habits

ecotechnical driving

free driving exercise

various driving styles

throttle septembre

kml slide