FDRE Technical and Vocational Training Institute

Mechanical Faculty
Department of Automotive Technology

A Practice Teaching Portfolio

Submitted To The Vocational Pedagogy Department

In Partial Fulfillment Of The Requirement In The

Practice Teaching Course
SUBMITTED BY:

1, Mekash Mengistu----------------------TTR/0330/12

2, Abrham Destaw ----------------------TTR/1152/12

3, Bikis Yibeltal ---------------------------TTR/0721/12

4, Dagmawi Asefa--------------------------TTR/0739/12

5, Alpha Fite--------------------------------TTR/0646/12
 ACKNOWLEDGMENT

Above all, I would like to thanks the Almighty God who gave me the strength, patience and
endurance trough out the work of these Portfolio Entries. And then I would like to express our
special thanks to our Teacher Ebrahim B.(Msc.) for his kindly and patience, guidance, to give a
chance to practice teaching in actual.
 MY PHILOSOPHY OF EDUCATION

Personal educational philosophy

My educational philosophy is that I believe all students are capable of learning. They all do not
learn at the same rate, but with different methods and strategies it is possible. Students should not
be thought of as mindless individuals just waiting to be filled with knowledge by their teachers.
Quite the opposite; students should be viewed as individuals who can contribute to the
classroom, sharing and gaining knowledge from each other. Students need guidance and not just
lecture only.

An education is not solely academic; the teacher must also educate her students mentally by
teaching them the skills needed to solve problems and socially by teaching them the skills
needed to communicate and work productively with others. Students must be able to function in
the real world which not only requires academic knowledge but social skills as well. I believe
teachers should not be alone in educating students but that parents, families and communities
need to work together to support and enrich the lives of their children, who are the future.
Teachers need to use various methods/approaches in order to reach every student.

I believe teachers who only use one method to teach should not be in the classroom. They
obviously are not reaching all of their students because we know that not all students learn in the
same way. Teachers must reach visual learners, auditory learners and kinesthetic learners.
Varying methods of teaching will create an interesting and fun environment and will help all
students succeed. I plan on using several different methods of teaching, including hands on,
technology based, cooperative learning groups and group discussion
Table of Contents
ACKNOWLEDGMENT.............................................................................................................................2
Mission of the Institute............................................................................................................................5
Vision of the Institute..............................................................................................................................5
Objectives of the Institute........................................................................................................................5
Mission of the pedagogy Department..........................................................................................................6
Description..................................................................................................................................................8
Course Objectives........................................................................................................................................9
Chapter One...............................................................................................................................................10
1. Electric Vehicles................................................................................................................................10
1.1. Introduction...................................................................................................................................10
1.2. Definition Of Electric Vehicles.....................................................................................................11
1.3. Types of Electric Cars...................................................................................................................11
There are 4 (four) types of electric cars:-...............................................................................................11
1.4. Battery Electric Vehicle (BEV).....................................................................................................12
1.5. Architecture and Main Components of Battery Electric Vehicle (BEV)........................................12
1.6. Working Principles of BEV...........................................................................................................13
1.7. Components of BEV....................................................................................................................14
 Resume

Mekash Mengistu

Mobile: 0917171704

Email: mekashmengistu2018@gmail.com

To: Ethiopian Air Lines

Dear Sir/Madam

Subject: - Application for job

It is my pleasure to be an applicant for the position available in your organization on the
vacancies for: Air Lines Technician’s I am interested and looking forward to apply for job arisen
from your organization. I graduated from Federal Technical and Vocational Education and
Training Institute with CGPA 3.6 on July 2/2023 G.C with BSC degree Faculty of Mechanical
Technology in Automotive Technology and so I have great interest to work in your organization
to bring a positive influence in your organization by doing a quality work as your members were
worked before. I shall endeavor to reorient your institution academic policy in the direction in
which it can render maximum services to the sociality as well as your institution. Please refer to
encased CV and others sheets for the detail of my educational background and some of my
instructors consent in expressing their opinion about my ability and character.

Sincerely Yours

Mekash Mengistu
 Curriculum Vitae
1, Personal Information
Full Name: Mekash Mengistu Kibret
Sex: Male
Date of Birth :August, 1988 E.C
Place of Birth: Asossa
Marital status: Single
Nationality: Ethiopian
Address Mobile: 0917171704
Email: mekashmengistu@gmail.com

2, Educational Background
1994-2001 E.C , Primary School Asossa Selam Ber primary School
2002-2004 E.C, Secondary School Asossa High School
Colleague Asossa polytechnic colleague College
Higher Education Federal Technical, vocational and Training
institute

3. Qualification
BA degree in Faculty of Mechanical Technology in Automotive
Technology
College diploma in Automotive Servicing Operation Management
4. Work Experience
2 years’ experience
5. Language Skill

Listing Speaking Reading Writing

Amharic Excellent Excellent Excellent Excellent
English Excellent V.Good Excellent Excellent
Afan Oromo Good Good Good Good

Computer Skill: Video editing and Photoshop

different CAD software (Solid Works , AutoCAD and Mathlab)

Hobby and interest; doing Exercise(Gym), Reading Books and Sharing ideas.
6. Reference
Haymanot Aschenaki Mobile: 0924 55 66 04
Email: HaymiAsche2112@gmail.com
Mission of the Institute

Producing competent, innovative and resourceful Technical and Vocational Education and
Training teachers and leaders through the provisions of quality short and long term training,
demand based research, technology and consultancy services in support of micro and small scale
enterprises.

Vision of the Institute

In fulfilling its Mission and achieving its vision the institute will uphold, promote and be guided
by the following Core Values:

 Commitment for excellence

 Resourcefulness
 Social responsibility
 Accept diversity

Objectives of the Institute

The institute has the following objectives
 To offer an internationally accepted undergraduate, postgraduate and short term training
to TVET teachers, technicians and leadership.
To build the implementation capacity of TVET sector

To support technological transfer that would enhance the productivity and

competitiveness of the country’s industry and in particular, micro and small scale
enterprises.
To support result oriented TVET system through research under takings.

Mission of the pedagogy Department

The department has the mission of training and equipping TVET teacher trainees and Leaders
with all important pedagogical, psychological and professional ethics so as to be democratically
disciplined, committed and effective change agents of the TVET education system

Vision of the pedagogy Department

The Vocational Pedagogy Department envision to become a premier pedagogy provider,

committed to develop professional TVET Teachers and Leaders with world class teaching
competencies and positive work values.

List of professional reading title and authors

here are some professional readings on electric vehicles:

1. Electric Vehicles: Technology, Policy and Commercial Development by David A. Hensher and John
Stanley

2. Electric Vehicle Integration into Modern Power Networks by Zhe Chen, Shuangwen Sheng, and Wei
Zhang
3. Electric Vehicles and Energy Storage Systems: Sustainability, Technology, Governance and
Challenges by Omar Hegazy and Mohammed Elsayed

4. Electric Vehicles for Smart Cities by Hemanshu Pota and Saif Benjaafar

5. Electric Vehicle Technology Explained by James Larminie and John Lowry

6. Electric and Hybrid Vehicles: Power Sources, Models, Sustainability, Infrastructure, and the Market by
Elias Kyriakides and Nikolas G. Vasilakos

SESSION PLAN

Presenter Name:-Mekash Mengistu

Unit of competence: Electric Vehicle Occupation:- Automotive Technology
Module title: Battery Electric Vehicle
Chapter 1:Battery Electric Vehicle Nominal duration :-20 min

OBJECTIVE: At the end of this session the student will be able to:-
Explain Battery Electric Vehicle
Define Working Principles of BEV
Recognize component Parts of BEV

Activity Time Content Teaching Trainers Trainees Aid & Material

method Activity Activity
Introduction 1 min Electric Vehicle Lecture Revising Revising listening TTLM ,marker, TV
Screen, PPT
2 min Battery Electric Lecture Pay attention White board, marker,
Vehicles TTLM, TV Screen, PPT
5min Lecture Pay attention White board, marker,
Working Principles
of BEV TTLM ,brick& drawing
Presentation/
Body
6min Component of BEV Group Discussion & White board, marker,
discussion Facilitate reflection TTLM, TV Screen, PPT
Figures
1min Summary Lecture Summarize Pay attention TV Screen and PPT
 Summary
Evaluation 2min What is BEV Oral Encourage Answer the PPT, TV Screen
student question

Trainers Name: Mekash Mengistu

Supervisor Name : x

Department head Name: x

Description
This course is designed to deliver the fundamental knowledge and skill about automotive
Electric Vehicle (Battery Electric) It also includes types of vehicle Power source , structure of
The vehicles, Operating principle and Battery electric vehicle advancements. It aims to provide
the trainees the knowledge, skills and attitudes required to service Battery Electric Vehicles and
electrical system.
Course Objectives
At the end of this course, the learner will be able to:
Understand Battery Electric Vehicle

.Explain the Operating Principle of Battery Electric Vehicle

Recognize component Parts of BEV

Mention different types of Electrical Vehicle

Chapter One

1. Electric Vehicles

1.1.Introduction
The development of internal combustion engine vehicles, especially automobiles, is one of the
greatest achievements of modern technology. Automobiles have made great contributions to the
growth of modern society by satisfying many of its needs for mobility in everyday life. The rapid
development of the automotive industry, unlike that of any other industry, has prompted the
progress of human society from a primitive one to a highly developed industrial society. The
automotive industry and the other industries that serve it constitute the backbone of the word’s
economy and employ the greatest share of the working population. However, the large number of
automobiles in use around the world has caused and continues to cause serious problems for the
environment and human life. Air pollution, global warming, and the rapid depletion of the
Earth’s petroleum resources are now problems of paramount concern. In recent decades, the
research and development activities related to transportation have emphasized the development
of high efficiency, clean, and safe transportation.

Electric vehicles, hybrid electric vehicles, and fuel cell vehicles have been typically proposed to
replace conventional vehicles in the near future.

The development of energy storage technology, especially battery technology, makes electric
cars become more popular again at this time.
Different types of electric cars changed and are developed continuously giving users and
potential user’s choices. Today the world is increasingly familiar with the terms BEV, HEV,
PHEV and FCEV. How does an electric car work? How an electric vehicle works is depend on
the type. This article will briefly discuss the types and working principles of electric cars or
vehicles marketed in the World.
What is Electric Vehicle?

1.2.Definition Of Electric Vehicles

An electric car is a vehicle that is fully or partially propelled by electric motors, using energy
stored in rechargeable batteries.
The 1st practical electric cars were produced in the 1880s. Electric cars were popular in the late
19th century and early 20th century.
Today the world is increasingly familiar with the terms Battery Electric Vehicle (BEV), Hybrid
electric Vehicle (HEV), Plug in Hybrid Electric Vehicle (PHEV) and Fuel Cell Electric Vehicle
(FCEV).

1.3. Types of Electric Cars

There are 4 (four) types of electric cars:-
 Battery Electric Vehicle (BEV),
 Hybrid electric Vehicle (HEV),
 Plug in Hybrid Electric Vehicle (PHEV) and
 Fuel Cell Electric Vehicle (FCEV)
In brief, the system architecture of the four types of electric cars above can be
seen in the following figure:
 1.4. Battery Electric Vehicle (BEV)
 A battery electric vehicle (BEV), pure electric vehicle is a type of electric vehicle (EV) that
exclusively uses chemical energy stored in rechargeable battery packs, with no secondary source
of propulsion (e.g. hydrogen fuel cell, internal combustion engine, etc.).
 BEVs use electric motors and motor controllers instead of internal combustion engines (ICEs)
for propulsion. They derive all power from battery packs and thus have no internal combustion
engine, fuel cell, or fuel tank. BEVs include – but are not limited to motorcycles, bicycles,
scooters, skateboards, railcars, watercraft, forklifts, buses, trucks, and cars.
 Pure electric vehicles rely on being powered solely by on-board batteries. Recent advances in
battery technology means that the new generation of electric cars are showing ranges of 80 to
100+ miles on a full charge, allowing them to be used for commuting. A full battery charge takes
from 6 to 8 hours, although batteries can be recharged to 80% capacity in 30 minutes with high-
powered three phase fast chargers.
 1.5. Architecture and Main Components of Battery Electric Vehicle (BEV)

1.6. Working Principles of BEV

 Power is converted from the DC battery to AC for the electric motor
 The accelerator pedal sends a signal to the controller which adjusts the vehicle’s speed by
changing the frequency of the AC power from the inverter to the motor
 The motor connects and turns the wheels through a cog
 Rotation of the motor rotor rotates the transmission so the wheels turn and then the car
moves.
 When the brakes are pressed or the electric car is decelerating, the motor becomes an
alternator and produces power, which is sent back to the battery(regenerative Braking)

Note:
Battery Electric vehicle uses a large traction battery pack to power the electric motor and
must be plugged in to a wall outlet or charging equipment also called electric vehicle supply
 equipment (EVSE). Because it runs on electricity, the vehicle emits no exhaust from a tailpipe
and does not contain the typical liquid fuel components, such as a fuel pump, fuel line, or fuel
tank.

1.7. Components of BEV

Battery (all-electric auxiliary): In an electric drive vehicle, the auxiliary battery provides
electricity to power vehicle accessories.

Charge port: The charge port allows the vehicle to connect to an external power supply in order
to charge the traction battery pack.

DC/DC converter: This device converts higher-voltage DC power from the traction battery pack
to the lower-voltage DC power needed to run vehicle accessories and recharge the auxiliary
battery.

Electric traction motor: Using power from the traction battery pack, this motor drives the
vehicle's wheels. Some vehicles use motor generators that perform both the drive and regeneration
functions.

Onboard charger: Takes the incoming AC electricity supplied via the charge port and converts it
to DC power for charging the traction battery. It also communicates with the charging equipment
and monitors battery characteristics such as voltage, current, temperature, and state of charge while
charging the pack.
Power electronics controller: This unit manages the flow of electrical energy delivered by the
traction battery, controlling the speed of the electric traction motor and the torque it produces.

Thermal system (cooling): This system maintains a proper operating temperature range of the
engine, electric motor, power electronics, and other components.

Traction battery pack: Stores electricity for use by the electric traction motor.

Transmission (electric): The transmission transfers mechanical power from the electric traction
motor to drive the wheels.

Self Check

1, What Is Battery Electric Vehicle?

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2, what is regenerative Braking?
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3, Sketch and Explain neatly the Battery Electric Vehicle
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