Powertrain Selection Process – Electrical
For the last century, our world has run majorly on internal combustion engines. The enormous consumption of resources has led to a decrease in global fossil reserves at an alarming rate. This has led to the coming of alternative energy sources, as a result, the automobile industry is also undergoing change. Electric Vehicles are back after a century.
The aim of this course is to take you through the basics of the electric powertrain selection process. Where you gain a better understanding of the electric architecture of the powertrain. By the end of the course, you will be able to select a suitable component for your EV. This course is designed so that you are able to find solutions to problems like – which motor to choose? What is the size of the battery pack required? Which type of controller should one use? What is the type of cell and how to control them?
Main Features –
- Learn the basics of the types of motor, their working and characteristics.
- How to regulate the current and voltage? Control methods for motors.
- What are the types of battery available?
- Charge and discharge characteristics of a battery.
- BMS Architecture and which one to use?
What is the Target Audience?
- Undergraduate students
- Post Graduation student
- Entrepreneurs are interested to gain knowledge of EV.
|Motor Basics||In this module take a brief look into the history of the electric vehicle, and its development over the years. What are the different types of architectures?
Further, have a basic understanding of motor types used in EV and the basic working principle of a motor.
|Motor Characteristics||Now that, the types of motors and basic working principle is clear. Take a look at the construction, working and various characteristics of the DC Series motor, Induction Motor and BLDC motor.
By the end of the module, you will be able to choose the type of motor required as per the application.
|Motor Control Methods||Now that the motor characteristics and behaviour is clear, this module will tell you about how the motor characteristics can be controlled as per the requirements and components involved for the same.|
|Motor Calculation||In this short module, you will learn about how to determine the motor power required and the input requirements for the motor, in order to finally select the motor for your requirement.|
|Li-Ion Battery Pack Selection||The previous modules were all about the motor and its control, but the energy required by the motor is stored in the battery pack. This module starts with the question – despite having so many chemistries, why only Lithium-Ion cells are being preferred? This is then followed by a basic introduction to the battery pack – cell arrangement and design parameters. And by the end, you will be able to calculate the battery pack size required.|
|BMS and Safety||Now the battery pack is calculated and it is known what kind of cells to use, this module will take you through safety parameters and how to control them using BMS. By the end, you will be able to choose a suitable BMS architecture for the given electric vehicle.|
|Range Calculation||Now that battery pack is ready, take a look at various methods involved through which you can verify if the battery pack is compliant with your requirement.|
|Battery Charging||In this last module, take a look at the charging characteristics of a li-ion battery pack. By the end, you will be able to determine the complete cell characteristics for selection of a battery pack.|
Module 1 - Motor Basics
Development of Electric Vehicle through time.
Various Electric powertrain architecture currently available.
Take a look at one of the first electric vehicle of modern era, and components used in it.
What constitutes an electric powertrain?
How these components come together to make a car move?
Types of Motors used in an EV
Basic working principle of a motor
05 Questions - 05 Marks
Module 2 - Motor Characteristics
Working and Construction of a DC Series motor.
Output characteristics of a DC Series motor
Working and Construction of an Induction motor.
Characteristics of an induction motor
Working of a BLDC Motor
Characteristics of a BLDC Motor
Module 3 - Motor Control Methods
Buck Converter utility
DC - AC Converter
Current and Voltage regulation
BLDC Control Methodologies
Pulse Width Modulation - Methodology
Module 4 - Motor Calculation
Module 5 - Li-Ion Battery Pack Selection
Why Li-Ion cells are preferred for battery pack?
Basics constituents of battery pack
Series and Parallel combination to choose
Battery Pack Design parameters
How to read and understand cell data.
Calculate number of cells required and their arrangement
Question 1- 5
Module 6 - BMS and Safety
Why is there a need for BMS?
What is thermal runaway? How is it caused?
Cell Types on the basis of their form structures.
What are the features and functionality of a BMS?
What are the basic components of a BMS and how it functions?
Understand in detail about the CLass A Architecture and its functionality
Question 6 - 10
What are the various methods to measure the cell voltage in a pack?
What are the various BMS Topologies and Configuration as per the complicity of battery pack?
How to measure the current in a battery pack?
Measuring temperature across a battery pack.
What are the parameters to be considered for battery pack safe operation?
What are the various methods for cell balancing? Why is it needed?
Question 11 - 15
The parameters controlled by BMS and Their execution
Various methods to measure state of charge in a battery pack
Conclusion on how to select BMS suitable for the battery pack.
What kind of fuse to select to ensure safe operation of the battery pack?
Module 7 - Range Calculation
Different driving cycles used by ARAI for range and speed calculation of the vehicle.
How to calculate and estimate the range of an electric vehicle?
Module 8 - Battery Charging
What is C Rating and how to interpret the data?
Various charging state and regions for a Li-ion battery
Methodology used for battery charging
Question 21 - 25