Engineering

This course introduces the basic concepts and methods of stress analysis. It explains the mathematical descriptions of stress analysis and demonstrates the physical significance of stress and strain and the importance and application of Hooke's Law. The course introduces the fundamental concepts of elasticity including Youngs Modulus and Poission ratio. The course then uses these descriptions to show how to solve a range of stress analysis problems including plane frames, stress and strain, pressure vessels and beams. 

The objective of this course is, starting from the requirements for vehicle propulsion, to present the different options in terms of vehicle energy converters, that have the potential for near-zero pollutant emissions and defossilization. The course deals with powertrains for vehicles. The expectations are that in a sustainable society, transportation powertrains will be a mix between battery electric, fuel cell, combustion engines, and hybrids. The combustion engines would then be powered by renewable fuels produced using sustainable sources. The main features of the different energy converters are given, with their pros and cons, followed by a detailed discussion for each option. Challenges to the combustion engine fueled by fossil fuels are discussed. The different configurations for hybrid powertrains and criteria for choosing the optimum configurations are presented. Plug-in hybrids and range-extended hybrids are discussed. The main features for hydrogen fuel cells and battery electric drive are stated, including advantages and challenges, as well as expected future trends for the different transportation modes.

There is a large and growing need in the automotive industry for engineers with specialization in electrical drives, power electronics and not least system aspects of electric vehicle control. This course has the ambition to give fundamental knowledge and skills in these areas. Drive and auxiliary drive. Power, torque, and speed. Combustion processes - Otto, Diesel, HCCI among others. Gear - manual, automatic, CVT among others. Efficiency and emissions. Fossil fuel, biofuel - access, cost and performance. EV, HEV - series, parallel, mild, power split, FCV. Conventional servo steering, AC, brake, compressed air and so on. Electrically driven alternatives, function, efficiency. Demands for electric machines and power electronics in vehicles. Criteria for dimensioning. Lifetime, weight, price and so on. Field reduction, starting characteristics, torque ripple and so on. Various types of control, need for sensors. Fuel cells - principle, function and construction. Advantages and drawbacks with various designs. Development trends. Electric storage media - eg batteries and super capacitors. Drive cycles, efficiency, and emission for some selected drive lines. Acceleration, start and other demands for the vehicle. Regenerative braking. The need for effect and energy storage in hybrid and FC vehicles. Assumed prior knowledge: Basic course in physics including mechanics.

This course offers an introduction to engineering graphics including the skills to interpret and perform industrial drawings and the use of computer-aided design (CAD) software for virtual modeling, assembling, and drafting mechanical assemblies. Other topics include: descriptive geometry; axonometric system; industrial drawing rules; auxiliary views; assembly and part drawings; annotation rules; dimensional and geometrical tolerances.