Preface

**Section 3**

Davies Method

**II**

*and Daniel Martins*

in Heavy-Duty Diesel Engine

Improvements in Heavy-Duty Vehicle Systems **111**

**Chapter 6 113**

**Chapter 7 131**

Application of Variable Compression Ratio VCR Technology

*by Paweł Woś, Krzysztof Balawender, Mirosław Jakubowski, Artur Jaworski, Paulina Szymczuk and Adam Ustrzycki*

Stability Analysis of Long Combination Vehicles Using

*by Gonzalo Guillermo Moreno Contreras, Rodrigo de Souza Vieira*

Computational numerical analysis and experimental research are the main tools used in many engineering disciplines, including the issues related to internal combustion engines and vehicle construction. Experimental studies are often associated with high cost and time-consuming works, therefore simulations and computational analyses are commonly used for performing parametric studies. Considering especially internal combustion engines, computational tests enable a detailed analysis of complex working processes taking place inside the engine. Moreover, they allow for shortening the time of testing numerous parameters and analysis of their influence on the final test result. They are also a reference point for the results obtained experimentally. The combination of computational methods with experimental tests undoubtedly opens up wide opportunities for scientists to improve existing and develop new technical solutions.

The matters discussed and presented in the chapters of this book cover a wide spectrum of topics and research methods commonly used in the field of engine combustion technology and vehicle functional systems. The book contains the results of both computational analyses and experimental studies on jet and reciprocating combustion engines as well heavy-duty onroad vehicles. Special attention is devoted to research and measures toward preventing the emission of harmful exhaust components, reducing fuel consumption or using unconventional methods of engine fueling or using renewable and alternative fuels in different applications. Some technical improvements in design and control of vehicle systems are also presented.

Sharing the book with our readers worldwide, the editors wish to thank all contributing authors and IntechOpen publishing initiative. We are especially grateful to Mrs. Mia Vulović, Mr. Luka Cvjetković, and all the publisher's staff coordinating the project; technical editors, and servicemen processing the book publication. Also many thanks to Ms. Paulina Szymczuk, MSc, for her great effort in book preparation.

> **Paweł Woś and Mirosław Jakubowski** Rzeszów University of Technology, Rzeszów, Poland

Section 1

Jet Engine Modeling

and Analysis

**1**

Section 1
