Unit
- Course
- Mechanical engineering
- Study-unit Code
- A002379
- Curriculum
- Energia
- Teacher
- Lucio Postrioti
- Teachers
-
- Lucio Postrioti
- Hours
- 64 ore - Lucio Postrioti
- CFU
- 8
- Course Regulation
- Coorte 2021
- Offered
- 2022/23
- Learning activities
- Affine/integrativa
- Area
- Attività formative affini o integrative
- Academic discipline
- ING-IND/08
- Type of study-unit
- Opzionale (Optional)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- Data acquisition systems basics.
Electro-mechanic actuators: principles and technologies. Sensors basics.
Controllers: the system-controller interaction, PID control strategy.
Electro-mechanical systems used for engine control: ECU operation.
Electro-mechanical systems used for engine emission control. Recent developments of injection systems and catalytic converters.
Hybrid-vehicles, and energy storage systems: basics. - Reference texts
- R.H. Bishop"Mechatronics An Introduction", Taylor&Francis
K. Reif: "Gasoline Engine Management", Springer Vieweg
K. Reif: "Diesel Engine Management", Springer Vieweg.
Additional lecture notes supplied by the Lecturer. - Educational objectives
- The main goal of the coarse is introducing the Student the mechatronic technologies currently used for both gasoline and Diesel internal combustion engines management; the focus is on technologies enabling the pollutants and CO2 emissions limitation. Specific tasks are the data acquisition systems and electro-mechanical systems control for automotive industry.
Hybrid and electric vehicles basics are analyzed. - Prerequisites
- The Student is supposed to have an adequate knowledge of basic thermodynamics and internal combustion engine operation as desumed by the Macchine and Motori a Combustione Interna courses.
- Teaching methods
- -Face-to-face Lessons
-Seminars and industry visits;
-Laboratory activity. - Other information
- n.a.
- Learning verification modality
- Oral examination or essay written questions
- Extended program
- Data acquisition systems: measurement chain, signal types, A/D and D/A conversion, vertical and horizontal resolution. Triggering systems. Comparison of PC-based and traditional acquisition systems. A typical PC-based acquisition system built in LabVIEW environment. LabVIEW graphical programming language structure and its main functions.
Mechatronic systems overall structure. The control system functions and typical architectures for the control software. Mechatronic systems modeling. The lumped parameters modeling in the 0D/1D simulation environment. Some examples of mixed fluid and electromagnetic actuators modeled in Amesim and/or GTPower.
Sensors Basics. Active/passive sensors, analog/digital sensors. Displacement, rotation, flux, force, torque, pressure, temperature proximity sensors. General concepts: measurement range, sensitivity, natural frequency, bias, accuracy, precision.
Electromechanical actuators: basic electrodynamics and electromagnetic principles. Magnetic characteristics of materials and magnetic circuits. DC motors: basic principles and equations. AC motors fundamentals. Stepper motor fundamentals; unipolar and bipolar steppers, wavemode, two-phase-one, half-step operation.
Control systems and strategies. The process characteristic curve. Proportional, integral and derivative control strategies. PID regulators and their tuning.
Internal combustion engines control strategies: the Electronic Control Unit (ECU) operation and its main functions. Air flux, ignition and injection control structures. Emission control structure. On Board Diagnostic function.
Electromechanical technologies used for Internal combustion engines control: injection systems and catalytic converters operation. Recent developments in the emission control and efficiency improvements for internal combustion engines.
Hybrid vehicles: basic concepts, classification in series and parallel architectures. Operation strategies (basics).
Discretionary:A) Laboratory class: building an open-loop positioning system based on a stepper and a PC-Based driver. B) Laboratory class: building a PC-based PID regulator to control the fluid pressure in a hydraulic system. System architecture analysis, definition of the control strategy and PID tuning.