SRM VALLIAMMAI ENGINEERING COLLEGE

(An Autonomous Institution)

SRM Nagar, Kattankulathur – 603 203

DEPARTMENT OF ELECTRICAL AND ELECTRONICS

ENGINEERING

QUESTION BANK

III SEMESTER

1916304 - ELECTRIC VEHICLES AND POWER MANAGEMENT

Regulation – 2019

Academic Year 2021 – 22

Prepared by

Dr.S.Malathi , Assistant Professor (Sel.G) / EEE

 SRM VALLIAMMAI ENGINEERING COLLEGE
SRM Nagar , Kattankulathur – 603 203.

DEPARTMENT OF EEE
QUESTION BANK
SUBJECT : 1916304 - ELECTRIC VEHICLES AND POWER MANAGEMENT
SEM / YEAR: III / II

UNIT I - ELECTRIC VEHICLES AND VEHICLE MECHANICS

Electric Vehicles (EV), Hybrid Electric Vehicles (HEV), Engine ratings, Comparisons of EV with
internal combustion Engine vehicles, Fundamentals of vehicle mechanics – EV Testing.
PART – A
BT
Q.No Competence COS
Questions Level
1. What are the features of EV?
BTL 1 Remember
CO1
2. Write few points about EV. BTL 1 Remember CO1
3. What are the components of an EV .
BTL 3 Apply CO1
4. Which type of battery majorly used in EV ? BTL 3 Apply CO1
5. Compare AC and DC machines which type is mainly
preferred for EV? BTL 2 Understand CO1
6. List out the choices for the selection of an EV system.
BTL 6 Create CO1
7. Mention the advantages of an EV system. BTL 2 Understand CO1
8. What are Hybrid Electric vehicles? BTL 1 Remember CO1
9. Define ICEV.
BTL 3 Apply CO1
10. Compare the EV and ICEV. BTL 1 Remember CO1
11. What is grading resistance. BTL 2 Understand CO1
12. Define rolling resistance.
BTL 5 Evaluate CO1
13. Define coefficient of rolling resistance. BTL 1 Remember CO1
14. What do you mean by road way percent grade?
BTL 6 Create CO1
15. What are the terms depends on the coefficient of rolling
BTL 1 Remember CO1
resistance?
16. Define aerodynamic drag. BTL 4 Analyze CO1
17. What are the causes for aerodynamic drag? BTL 2 Understand CO1
18. Write the expression aerodynamic drag. BTL 5 Evaluate CO1
19. Mention the factors depend by vehicle during CO1
BTL 4 Analyze
acceleration.
20. What are the resistive forces applied to vehicle CO1
BTL 4 Analyze
movement?
PART – B
1. Expail in detail about hybrid vehicle? (13) BTL 4 Analyze CO1

Write in detail about the features and components of EV. CO1

2. BTL 4 Analyze
What are the advantages of EV ? (13)
Explain in detail about the ICEV. (13) CO1
3. BTL 4 Analyze

4. Compare EV with internal combustion Engine vehicles. (13) BTL 3 Apply CO1

Explain the EV and HV with block diagrams and write the CO1
5. BTL 2 Understand
advantages and disadvantages. (13)
6. Explain in detail about the movement of vehicle. (13) BTL 2 Understand CO1
Explain in detail about the dynamic equation of vehicle BTL 5 CO1
7. Evaluate
motion. (13)
Briefly explain the resistive forces applied over vehicle CO1
8. BTL 4 Analyze
motion. (13)
Write in detail about the rolling resistance with BTL 2 Understand
9. CO1
characteristics. (13)
CO1
10. Explain in detail about the aerodynamic drag. (13) BTL 1
Remember
Briefly discuss about the Economic and Environmental CO1
11. BTL 1 Remember
impact of Electric Hybrid vehicle. (13)
Summarize motion and dynamic equations for vehicles. CO1
12. BTL 1 Remember
(13)
13. Write a note on grading resistance. (13) BTL 1 Remember CO1
Write in detail and compare different Engine ratings. (13) BTL 6 CO1
14. Create
PART– C
Analyze in detail about the EV and HEV system and CO1
1. write its advantages and disadvantages. (15) BTL 6 Create

Summarize the concept of dynamics of Electric and BTL 5 Evaluate CO1

2. Hybrid vehicles. (15)

Explain in detail about the Internal combustion engine CO1

3. vehicle with its applications. (15)
BTL 6 Create
Briefly explain the concept of fundamentals of vehicle
4. mechanics. (15) BTL 5 Evaluate CO1
 UNIT II - ARCHITECTURE OF EV’s AND POWER TRAIN
COMPONENTS
Architecture of EV’s and HEV’s – Plug-n Hybrid Electric Vehicles (PHEV) - Standards - Power train
components and sizing, Gears, Clutches, Transmission and Brakes.
PART-A
1. List out the components in the automotive drive train. BTL 1 Remember CO2
2. What are the limiting factors to the maximum tractive BTL 5 Evaluate CO2
effort of the vehicle?
3. Classify the various power plants used in vehicles. BTL 4 Analyze CO2
4. What are the factors considered for the selection power Remember CO2
plant? BTL 1
5. What are the advantages of diesel engine? BTL 2 Understand CO2
6. What are the two typical characteristics used to describe Remember CO2
the engine characteristics? BTL 1

7. Define engine speed ratio. BTL 6 Create CO2

8. Draw the characteristic curves of internal combustion Remember CO2
BTL 1
engine.
9. Mention the purpose of electric vehicle standards. CO2
BTL 4 Analyze
10. Draw the traction force and speed characteristics of internal Remember CO2
BTL 1
Combustion engine with gear box and without gear box.
11. What do you mean by plug-in hybrid? BTL 2 Understand CO2
12. Compare to HEV, EV system is flexible. Justify Create CO2
BTL 6
13. Explain the power flow control in series hybrid. BTL 5 Evaluate CO2
14. Mention the four modes of power flow control in CO2
parallel hybrid. BTL 2 Understand

15. List out the power train components. Create CO2

BTL 6
16. Write the function of gears and clutches. CO2
BTL 3 Apply
17. What is regenerative braking? BTL 3 Apply CO2
18. Define power train. CO2
BTL 2 Understand
19. What are the types of HEV’s? BTL 4 Analyze CO2
20. Discuss about HEV configuration. CO2
BTL 1 Remember
PART-B

Explain in detail about the drive train configuration. (13) BTL 3 CO2
1. Apply
Describe few points about internal combustion engine and BTL 5 CO2
2. also explain the principles. (13) Evaluate
Draw and explain the characteristics of internal BTL 4 CO2
3. combustion engine. (13) Analyze
Explain in detail about the necessity of gear box with BTL 4 CO2
4. characteristics. (13) Analyze
 5. Briefly explain the architecture of EV’s. (13) BTL 4
Analyze CO2
BTL 3 CO
6. Explain in detail about the HEV configurations. (13) Apply
Draw the functional block diagram of various HEV CO2
BTL 2 Understand
7. configurations. (13)
Explain in detail about the series hybrid system with BTL 1 CO2
necessary diagrams. (13) Remember
8.
Explain in detail about the parallel hybrid system with BTL 2 Understand CO2
9.
necessary diagrams. (13)
Describe in detail about the power flow in series hybrid CO
10. BTL 6 Create
and parallel hybrid HEV. (13)
Explain in detail about the power flow control in series CO
11. parallel hybrid. (13) BTL 1 Remember
Explain the basic architecture of electric drive train with CO
12. BTL 2 Understand
its configurations. (13)
What is the necessity of EV testing? Explain in detail. CO
13. BTL 1 Remember
Explain in detail about the power train components with CO
14. BTL 1 Remember
neat diagram. (13)
PART-C
Explain about Vehicle power plant and transmission CO
1. BTL 6 Create
characteristics in detail.(15)
Summarize the basic architecture of hybrid drive trains and
2. analysis of series drive train.(15) BTL 6 Create CO
Discuss about the Torque coupling and analysis of parallel CO
3. BTL 5 Evaluate
drive train.(15)
Analyze complex hybrid power flow control with its CO
4. modes of operation.(15) BTL 5 Evaluate

UNIT III - CONTROL OF DC AND AC DRIVES

DC/DC chopper based four quadrant operations of DC drives – Inverter based V/f Operation (motoring and braki
of induction motor drive system – Induction motor and permanent motor-based vector control operation – Switch
reluctance motor (SRM) drives.
PART-A
What are the DC/DC converters are mostly used in HEV and CO
1. Remember
in EV system? BTL 1
2. List out the general types of DC to DC converters. BTL 1 Remember CO
3. What are the four quadrants of operation of DC drives BTL 1 Remember CO
4. Define buck boost converter. BTL 1 Remember CO

Draw the voltage and current waveforms of buck boost CO

5. BTL 1 Remember
converter.
6. What are the two modes of operation converter. BTL 1 Remember CO
7. Tell something about two quadrant converter. BTL 2 Understand CO
What is DC to AC converter? Draw its current and voltage CO
8. BTL2 Understand
characteristics.
9. What is freewheeling diode? BTL2 Understand CO3
10. What are the two modes of operation in DC-AC inverter? BTL 2 Understand CO3
CO3
11. What are the voltage control techniques of single phase BTL3 Apply
inverter?
What are the voltage control techniques of three phase CO3
12. BTL 3 Apply
inverter?
Define modulation index. CO3
13. BTL 3 Apply
14. Write the expression of electromagnetic torque in induction CO3
BTL 4 Analyze
motor.
15. Tell some points about synchronous machine. CO3
BTL 4 Analyze
16. What is PMSM? BTL4 Analyze CO3
17. Define Field oriented control (FOC). BTL5 Evaluate CO3
18. Write some of the advantages of Permanent magnet CO3
machine. BTL5 Evaluate

19. What are the control strategies used in PM machine? BTL 6 Create CO3
20. Describe SRM drives. BTL6 Create CO3

PART-B
1. Explain in detail about the DC-DC converters for EV CO3
BTL 1 Remember
and HEV applications. (13)
2. Briefly explain the Buck converter with RLE load with CO3
BTL 1 Remember
different modes of operation. (13)
3. Explain the continuous and discontinuous modes of CO3
BTL 1 Remember
operation of converters. (13)
4. Briefly explain the Boost converter with R load with different CO3
BTL 1 Remember
modes of operation. (13)
5. What is the classification of converters? Explain in CO3
detail about the four quadrant converter. (13) BTL 2 Understand
6. Explain in detail about the four-quadrant operation of CO3
BTL2 Understand
chopper. (13)
7. Discuss in detail about the single phase bridge DC-AC CO3
BTL2 Understand
inverter with R load. (13)
8. Explain in detail about Voltage control of DC-AC Inverter using CO3
PWM technique. (13) BTL 3 Apply

9. Explain in detail about the principle of operation of induction CO3

motor and write about the rotor emf and draw its equivalent BTL 3 Apply
circuit. (13)
10. Discuss the implementation of constant volts/HZ control in CO3
BTL 4 Analyze
induction motor. (13)
11. Explain about the Permanent magnet motor drives their CO3
BTL 4 Analyze
control and applications in EV/ HEV’s. (13)
12. What is Switch reluctance motor and discuss about their CO3
BTL 4 Analyze
configuration and optimization. (13)
13. A DC-DC buck converter has a load resistance of R=0.25 Ohm CO3
and input voltage of 550V. The average load current is 200A and
the chopping frequency is is 250Hz. Determine the load
inductance that will limit the maximum load ripple current to BTL 5 Evaluate
10% of average load current. (13)
14. Describe about the Permanent magnet motor based vector BTL 6 Create CO3
control operation. (13)
PART-C

1. The speed of a dc motor is controlled by a DC-DC converter.

The dc supply voltage is 80V. The armature circuit
resistance is Ra=0.3 Ohm and armature inductance is
La=8mH. The motor constant Ka=0.07V/rpm. The motor
drives a constant torque load requiring an average armature
current of 20A. Assuming that the motor current is BTL 6 Create CO3
continuous, compute (15)
a. The range of speed control
b. Range of duty cycle
2. Analyze the Steady state performance of induction motor
with volts/HZ control in induction motor. (15) BTL 6 Create CO3
3. Summarize the Flux weakening control of PM machines and CO3
BTL 5 Evaluate
also explain its dynamic model.(15)
4. Write about the power train and Drive cycle and its detailed CO3
BTL 5 Evaluate
analysis.(15)
UNIT IV - BATTERY ENERGY STORAGE SYSTEM

Battery Basics, Different types, Battery Parameters, Battery modeling, Traction Batteries, Energy
management system in Electric vehicle – Battery Management Systems.
PART - A
1. What is battery? BTL 1 Remember CO4
2. Draw the simple equivalent circuit model of battery. BTL 1 Remember CO4
3. List out the types of batteries. BTL 1 Remember CO4
4. Point out the battery parameters. BTL 1 Remember CO4
5. Define energy efficiency. BTL 1 Remember CO4
6. Write the overall reaction equation of lead acid battery. BTL 1 Remember CO4
7. What are the types of lithium batteries? BTL 2 Understand CO4
8. What is charge equalization? BTL2 Understand CO4
9. Write the use of batteries in hybrid vehicles. BTL2 Understand CO4
10. What is meant by flywheel? BTL 2 Understand CO4
12. Define Carnot limit. BTL 3 Apply CO4
13. What is C rate? BTL 3 Apply CO4
14. Define the term Peukert coefficient. BTL 4 Apply CO4
15. What are the factors to be considered for the selection of BTL 4 Analyze CO4
batteries for EV and HEV applications?
16. Tell few points about super capacitors. BTL4 Analyze CO4
17. What do you mean by ageing effect?
BTL5 Evaluate CO4
18. What is traction battery? BTL5 Evaluate CO4
19. List the application of traction battery. BTL 6 Create CO4
20. Point out the objectives of energy management system in BTL6 Create CO4
Electric vehicles.
PART-B
Explain in detail about the mathematical modeling of BTL 1 Remember CO4
1.
Lead acid battery. (13)
2. Give in detail about the modelling of battery. (13) BTL 1 Remember CO4
Explain the construction and working of lithium ion BTL 1 Remember CO4
3.
battery. (13)
4. What are the batteries used in hybrid vehicles. Explain its Remember
BTL 1 CO4
features, advantages and disadvantages. (13)
Give some points about charging and discharging
5. BTL 2 Understand CO4
capacity of battery. (13)
Explain in detail how to calculate the Peukert
6. BTL2 Understand CO4
coefficient. (13)
Explain the construction and working of photovoltaic cell.
7. BTL2 Understand CO4
(13)
8. Explain in detail about the flywheel. (13) BTL 3 Apply CO4
9. Explain briefly about the parameters of battery. (13) BTL 3 Apply CO4

10. What is traction battery? Give brief points about the BTL 4 Analyze CO4
application of EV and HEV applications. (13)
Compare the different types of batteries used in
11. electric vehicles. (13) BTL 4 Analyze CO4

12. Describe the modelling of battery. (13) BTL 4 Analyze CO4

Explain in detail about the series parallel configuration
13. BTL 5 Evaluate CO4
of battery. (13)
(i) Mention the importance of battery cell equalizers for
14. energy management. BTL 6 Create CO4
(ii) Give short notes on PHEV / EV cell equalizers.
PART-C
Summarize few points about energy storage device
1. with its applications. (15) BTL 6 Create CO4

Describe about the battery modelling and also give

2. BTL 6 Create CO4
what are the parameters to be considered. (15)
Explain in detail about the traction batteries and its
3. BTL 5 Evaluate CO4
applications. (15)
Describe about the construction and working of lithium
4. BTL 4 Analyze CO4
ion battery. (15)
UNIT V ALTERNATIVE ENERGY STORAGE SYSTEMS
Fuel cell – Characteristics- Types – hydrogen Storage Systems and Fuel cell EV – Ultra Capacitor
PART-A
1. What do mean by fuel cell? BTL 1 Remember CO5
2. What are the drawbacks of fuel cell? BTL 1 Remember CO5
3. List the main issues in the fuel cell. BTL 1 Remember CO5
What do you know about hydrogen fuel cells. BTL 1 Remember CO5
4.

What are the main reasons for loss of voltage in fuel cells? BTL 1 Remember CO5
5.

6. Define fuel cell efficiency. BTL 1 Remember CO5

7. What do you mean by photovoltaic cell . BTL 2 Understand CO5
8. List out the different types of fuel cell. BTL2 Understand CO5
9. What is Carnot limit? BTL2 Understand CO5
10. Define compressed and liquid hydrogen. BTL 2 Understand CO5
11. Define FCEV. BTL3 Apply CO5
12. Write the applications of FCEV. BTL 3 Apply CO5
13. What is ultra capacitor? BTL 3 Apply CO5

14. How fuel cell works? BTL 4 Analyze CO5

15 What are the disadvantages of fuel cell? BTL 4 Analyze CO5
16. Write advantages of fuel cell. BTL4 Analyze CO5
Discuss few points about hydrogen storage. BTL5 Evaluate CO5
17.

18. What are the materials used in ultra capacitors? BTL5 Evaluate CO5
19. Compare Electrochemical capacitor and ultra capacitors. BTL 6 Create CO5
20. Give the applications of ultra capacitors. BTL6 Create CO5

PART-C
Explain in detail about the fuel cell and its working. BTL 1 Remember CO5
1. (13)

2. Explain how fuel cell and hydrogen cell work together. (13) BTL 1 Remember CO5

3. Briefly explain how fuel cell works. (13) BTL 1 Remember CO5

What are the types of fuel cells? Compare the different

4.
types of data’s for different types. (13) BTL 1 Remember CO5

5. Explain in detail about the fuel cell electrodes. (13) BTL 2 Understand CO5
6. Explain in detail about the fuel cell thermodynamics. BTL2 Understand CO5
7. Draw and explain the characteristics of fuel cell. (13) BTL2 Understand CO5
Explain in detail about the hydrogen storage in EV and
8.
HEV applications. (13) BTL 3 Apply CO5

Explain in detail about the automotive hydrogen storage.

9.
(13) BTL 3 Apply CO5

10. Explain in detail about ECU. (13) BTL 4 Analyze CO5

11. Draw and explain the control architecture of HEV. (13) BTL 4 Analyze CO5
12. Explain in detail about the Ultra capacitors. (13) BTL 4 Analyze CO5
Describe the working condition of Ultra capacitor in
13. parallel with battery. (13) BTL 5 Evaluate CO5

Explain charging and discharging of super capacitor and Create CO5

14. also explain how it works. (13) BTL 6
 PART-C

Briefly explain the working of fuel cell and also write its
1. BTL 6 Create CO5
advantages and its disadvantages.(15)
Summarize the concept of hydrogen storage system and
2. BTL 6 Create CO5
also explain its types.(15)
Analyze the different parameters for different types of
3. BTL 5 Evaluate CO5
fuel cells.(15)
Discuss briefly about the ultra capacitors and its
4. applications in EV system.(15) BTL 5 Evaluate CO5