The influence of engine and vehicle constructions to fuel consumption and air pollution

Table of Contents

1. Historical context of motor vehicle technology and development of Innovations

1.1 Engines

1.1.1 Otto engines

1.1.1.2 Octane in Gasoline or Petrol fuel

1.1.1.3 Ignition timing

1.1.1.4 Engine head and valve train

1.1.1.5 Test methodology

1.1.1.6 Conclusion of this chapter

1.1.1.7 Engine wasted power by valve train load

1.1.1.8 Test methodology

1.1.1.9 Conclusion of this chapter

1.1.1.10 Electrical consumers cause increased emission of harmful gases

1.1.1.11 Test methodology

1.1.1.12 Conclusion of chapter 1.1.1.10

1.1.1.13 Air conditioning causes increased pollution

1.1.1.14 Test methodology

1.1.1.15 Conclusion of chapter 1.1.1.13

1.2 Transmissions

1.2.1 Manual gearbox and clutch

1.2.2 Automatic gearbox

1.2.3 Test methodology

1.2.4 Conclusion of chapter 1.2.2

1.2.5 Vehicle wheels geometry

1.2.6 Test methodology

1.2.7 Conclusion of chapter 1.2.5

1.3 Vehicles drag koeficient

1.3.1 Test methodology

1.3.2 Conclusion of chapter

1.4 Tires

1.4.1 Test methodology

1.4.2 Conclusion of chapter 1.4

Research Objectives and Core Themes

This dissertation investigates the impact of various engine and vehicle design choices on fuel consumption and the emission of harmful pollutants. The central research objective is to identify how technical "innovations," often prioritized for performance or manufacturer profit, inadvertently increase environmental degradation, and to propose alternative modifications that could significantly reduce global automotive emissions.

• Analysis of internal combustion engine inefficiencies and valve train design.
• Evaluation of transmission types and their correlation with fuel consumption.
• Impact of vehicle aerodynamics and drag coefficients on environmental output.
• Investigation into auxiliary energy consumers, such as air conditioning and lighting.
• Assessment of tire pressure and steering geometry as factors in mechanical drag.

Excerpt from the Book

Summary of Chapters

1. Historical context of motor vehicle technology and development of Innovations: Provides an overview of the evolution of automotive engineering and the trade-offs between innovation, performance, and environmental impact.

1.1 Engines: Analyzes the fundamental operation of internal combustion engines and specific mechanical limitations that influence pollution levels.

1.2 Transmissions: Examines how different gear systems and clutch configurations contribute to engine load and wasted energy.

1.3 Vehicles drag koeficient: Explores the role of aerodynamics and body styling in overcoming air resistance to improve fuel efficiency.

1.4 Tires: Investigates how tire maintenance, pressure, and geometry influence rolling resistance and consequently, fuel consumption.

Keywords

Internal combustion engine, fuel consumption, harmful gases, emissions, valve overlap, transmission efficiency, automotive aerodynamics, drag coefficient, engine power, valve train, tire pressure, environmental pollution, automotive innovation, torque converter, steering geometry.

Frequently Asked Questions

What is the primary focus of this dissertation?

The research focuses on the relationship between automotive engineering design choices and their direct impact on fuel consumption and environmental pollution.

What are the main thematic fields covered?

The work covers engine design, transmission systems, vehicle aerodynamics, and maintenance factors like tire pressure.

What is the central research question?

The study asks how existing automotive technologies could be modified to reduce emissions if environmental impact were prioritized over performance and short-term profit.

Which scientific methodology is employed?

The author uses a mix of theoretical analysis based on physics and practical comparisons of vehicle specifications and performance data.

What does the main body of the work address?

It addresses specific mechanical components—such as valve trains, torque converters, and cooling systems—and analyzes how their current designs maximize power at the expense of efficiency.

What keywords characterize the research?

Key terms include internal combustion engine, fuel efficiency, emission reduction, automotive aerodynamics, and mechanical drag.

Why does the author argue that high-performance vehicles are unnecessary?

The author notes that most modern vehicles are restricted by legal speed limits, making extreme engine power redundant and environmentally harmful.

What is the conclusion regarding "valve overlap"?

The author concludes that high-performance valve overlap significantly contributes to unburned fuel being expelled through the exhaust, increasing harmful emissions.

How do electrical consumers affect fuel consumption?

Auxiliary systems like daytime running lights and air conditioning draw significant engine power, which the author argues is an overlooked source of global emission increases.