General topics related to road electric vehicles (EVs) and to environmental impact.
Typical powertrain architectures for electric and hybrid electric vehicles
EV components:
- Battery and energy storage devices
- Power converters
- Motors and traction systems
System integration:
- Overview on controls
- Regenerative braking
Theory and exercise on modelling and simulation of electric vehicles and their subsystems.
Chris Mi, M. Abul Masru
Hybrid Electric Vehicles
Principles and Applications with Practical Perspectives
Second Edition
Slides prepared by the teacher.
During the course, a selection of scientific articles will be provided.
Obiettivi Formativi
The course is intended to provide students a wide overview on electric vehicles characteristics and their interaction with existing infrastructure and energy production system.
Therefore, competencies related to primary energy conversion, management and assessment of its impact are provided, illustrating the European framework for electrification transition.
A relevant target of the course is to describe vehicle layout, characteristics and components, illustrating the system organization for both road and off road electric and hybrid electric vehicles. Particular attention will be held on the transition from requirements to specifications.
Detailed competencies will be provided regarding powertrain system, including traction system, energy storage/conversion (batteries, fuel cells), static power converters (inverters) and their subsystems.
Finally, modelling and simulation exercises will be illustrated in order to let students learn the fundamentals of 0D-1D representation criteria for vehicles and understand the impact of boundary conditions on final results (e.g. driving cycles, temperatures).
The contents of the exam are supposed to contribute to the formation of a technical profile which is both able to manage vehicle engineering activities and to directly act on vehicle design phases.
As a final remark, students will be stimulated to analyse scientific papers and sources to introduce them to scientific research methods.
The course will contribute to the following learning objectives specific of the Master Programme:
Knowledge and understanding
- cc1 The multidisciplinary normative, methodological, technological, and instrumental knowledge of the context related to the ecological transition of systems, services and products.
- cc4: Knowledge of advanced design tools (mechanical, thermo-fluid dynamical, electrical, or multi-physics) for modelling and numerical simulation of components or systems.
- cc9: Knowledge of vehicles and their technical and design characteristics for the development of sustainable mobility.
Applying knowledge and understanding
- ca2: The ability to carry out engineering projects, working in a multidisciplinary environment.
- ca5: The ability to combine theory and practice to identify and solve multidisciplinary engineering problems, considering constraints, including non-technical ones.
Making judgements
- ag1: The ability to independently analyse data and information, draw objective conclusions and make consequential decisions.
Communication skills
- ac2: The ability to professionally present problems, solutions, analyses and results through written reports and verbal presentations.
Learning skills
- ap1: The capacity for continuous and autonomous learning, and self-updating in the relevant engineering area.
Prerequisiti
Basic competencies on road vehicles (overall design characteristics and vehicle dynamics)
Knowledge of electric engineering and mechatronics fundamentals
Fundamentals of numerical calculation – to be used for vehicle modelling and simulation
Metodi Didattici
Class lectures held by the teacher; proposal of a number of seminars prepared in collaboration with other teachers and/or industry professionals.
Exercise sessions using simulation tools (mainly Matlab/Simulink, but also the use of Siemens AMESIM is possible)
Overview on laboratory equipment and components.
Modalità di verifica apprendimento
The exam consists of a discussion between teacher and candidate; it includes a brief discussion on a scientific topic selected by the candidate during the period of lectures.
To pass the exam, the candidate is expected to demonstrate:
a) Satisfactory competencies about the role of electric vehicles in achieving transport sustainability in different contexts (cc1), knowledge about vehicle engineering problem formulation using numerical calculation tools (cc4); knowledge about electric vehicles parts and components characteristics (cc9);
b) Capability to apply knowledge into engineering design case studies, preparing a personal project for didactic needs (ca2) and setting up proper solutions, using advanced software when necessary (ca5)
c) Appropriate ability to present and defend their work and research in a technical discussion context (ac2, ag1);
d) Propension to autonomous learning, through information collection and/or processing beyond the program in order to complete a personal project (ap1)
Programma del corso
General topics related to road electric vehicles (EVs) and to environmental impact
- Motivation for electric vehicles use
- Air pollution (fundamentals)
- Regulation for impact reduction in automotive sector
Typical powertrain architectures for electric and hybrid electric vehicles
- Conversion, propulsion, traction systems and their integration
- Examples
Typical EV components
- Battery and energy storage devices
* Overview on electro-chemicals phenomena
* Main cell categories
* System build-up and its control
- Power converters
* Functionalities
* Overview on power semiconductors
- Motors and traction systems
* Motors: synchronous, asynchronous, brushless-DC, brushed
* Overview on electrical drives
* Torque characteristics
System integration
- Control of power electronics/motor
- Regenerative braking
- Overview on advanced control systems
Exercise on modelling and simulation of electric vehicles and their subsystems
- Modelling through "0D" approach (Matlab/Simulink, Modelica etc.)
- Driving cycles: real world measurements, analysis and application
- Performance and energy consumption estimation of vehicles and/or their subsystems
Obiettivi Agenda 2030 per lo sviluppo sostenibile
Goal 9: Industry, innovation and infrastructure
Goal 11: Sustainable cities and communities
Goal 12: Responsible consumption and production