Valid for: 2016/17
Decided by: Education Board A
Date of Decision: 2016-04-05
Elective for: E4-em, M5-fo, MD4
Language of instruction: The course will be given in English on demand
The automotive industry is subject to an important and necessary shift to vehicles with significantly lower fuel consumption and higher fuel flexibility. Hybridisation is the most important means to accomplish this. It means that at least one electrical drive is used to help the combustion engine with tractive work and leads to better utilization of the combustion engine, recovery of brake energy, possibility to charge from the power grid and in addition to drive a multitude of secondary loads electrically. The latter also contributes to lower fuel consumption.
There is a large and growing need in the automotive industry for engineers with specialisation in electrical drives, power electronics and not least system aspects of hybrid vehicle control. This course has the ambition to give fundamental knowledge and skills in these areas.
Knowledge and understanding
For a passing grade the student must
Competences and skills
For a passing grade the student must
Judgement and approach
For a passing grade the student must
Drive and auxiliary drive. Power, torque and speed. Combustion processes - Otto, Diesel, HCCI among others. Gear - manual, automatic, CVT among others. Efficiency and emissions. Fossile fuel, bio fuel - 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.
The course includes 28h lectures, 6hcomputer excercises and self study supported by internet course material, in total 200h.
Grading scale: TH
Assessment: Written reports and written examination. Approved written reports will render the credit three.
Required prior knowledge: Basic course in physics including mechanics.
The number of participants is limited to: No
Course coordinator: Professor Mats Alaküla, mats.alakula@iea.lth.se
Director of studies: Henriette Weibull, henriette.weibull@iea.lth.se
Course homepage: http://www.iea.lth.se/hfs