Description
Scania is now undergoing a transformation from being a supplier of trucks, buses and engines to a supplier of complete and sustainable transport solutions.
Background
Emissions legislation is getting stricter with time, which demand improvements in efficiency of the internal combustion engine as well as the performance of aftertreatment system. One way of creating favourable operating conditions for the aftertreatment system is by controlling the gas-exchange process of the combustion engine. An effective way of achieving this is by modifying the valve timings.
There are several techniques for achieving variation in valve timings and one of the most popular ones is by the use of cam phaser. The cam phaser is a complex system which is attached to the camshaft and uses pressurised lubrication oil to achieve change in valve timing.
Goal
The aim of this thesis project is to design a detailed cam phaser model in GT-Suite and identify most sensitive design parameters that influence the performance of cam phaser system. Moreover, the model is to be calibrated using measurement data from test cell.
Purpose
The current models available have been found to be inaccurate in predicting real life performance. Moreover, it is not possible to identify and optimize critical parameters that influence phaser performance. In the long term, the aim is to prepare and calibrate a detailed GT model which can be used to calculate optimum values of these critical parameters for any given Scania engine.
Education/line/orientation
The student is pursuing a master’s degree preferably in mechanical engineering, vehicle engineering, sold mechanics, fluid mechanics or any other related field. It is essential that the student has a profound understanding of concepts of internal combustion engines, fluid mechanics and theory of machines. Moreover, basic knowledge in the field of controls and mechatronics is advantageous but not mandatory.
Number of students: 1
Start date of the ex-job: 16-Jan-2023
Estimated time required: 20-24 weeks