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

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Présentations Powerpoint

TECHNICAL /ECO DRIVING

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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.

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Technical Driving / Introduction

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

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Technical Driving / Introduction

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.

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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

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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

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Technical Driving / Content

1. The engine and actions before driving

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Technical Driving / Content

Aspiration Compression Explosion Escape

1. The engine and actions before driving

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Technical Driving / Content

1. The engine and actions before driving

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Technical Driving / Content

1. The engine and actions before driving

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Technical Driving / Content

2. The cinematic chain and actions before driving

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Technical Driving / Content

3. Energy losses

100

20

2060

40

20

30

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Technical Driving / Content

4. Technical driving

Forces applied to vehicles

Aerodynamic force

Rolling force

Slope force

Inertia force

Power required and engine available Power

Driving style

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Technical Driving / Content

4. Technical driving Forces applied to vehicles

F1 = ½ ρ.Cx.S.V²

Aerodynamic force

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Technical Driving / Content

4. Technical driving Forces applied to vehicles

F2 = K.m.g

Rolling force

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Technical Driving / Content

4. Technical driving Forces applied to vehicles

Slope force

Θ (

F3 = m.g.sin θ

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Technical Driving / Content

4. Technical driving Forces applied to vehicles

F4 = m.γ.i

Inertia force

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Technical Driving / Content

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

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Technical Driving / Content

4. Technical driving Power required and engine available power

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

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Technical Driving / Content

4. Technical driving Power required and engine available power

IMPOSSIBLE TO DRIVE PROPERLY

WITHOUT KNOWING THESE

CURVES

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Technical Driving / Content

4. Technical driving Power required and engine available power

Speed

Available power

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Technical Driving / Content

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”

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Technical Driving / Content

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

Fuel Consumption

Consumption

Acceleration

Rpm

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Technical Driving / Content

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)

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Technical Driving / Content

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

2.1.1000

..60

RR

cnV

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Technical Driving / Content

4. Technical driving Driving style / “Plume foot”

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Technical Driving / Content

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)

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Technical Driving / Content

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).

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Technical Driving / Content

5. Main topics regarding transport air pollution

NOx Emissions / Diesel Private Car

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Technical Driving / Content

6. Recent developments regarding air pollution

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Technical Driving / Content

6. Recent developments regarding air pollution

GPL (Petrol Liquid gas)

GNC (Compressed Natural gas)

Electric (Pure / Hybrid / Fuel Cell)

Bio Fuels (Vegetal Oil / Alcohol)

Présentations Powerpoint

TASHI DELEK

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