IV-I B.
TECH MID-I EXAMINATIONS
Hybrid Electric Vehicles (R-20)
Name of the Faculty :Dr J Ranga YEAR: IV-I (A&B) A.Y:2022-23
Date: 17-11-2023
MID-II QUESTION BANK
UNIT-03
S. CO
Question Marks
No No.
How is a permanent magnet synchronous motor controlled in EVs and HEVs?
1 What are the applications of permanent magnet synchronous motors in EVs and HEVs? 10 C03
What are the merits and limitations of switch reluctance motors in EVs and HEVs?
2 Can you explain the converter configuration of switch reluctance motors? 10 C03
How do induction motor drives work in EVs and HEVs? What are the applications of C03
3 10
induction motor drives in EVs and HEVs?
UNIT-04
S. CO
Question Marks
No No.
What are the key features of battery chargers for electric vehicles (EVs) and plug-in 10 C04
1
hybrid electric vehicles (PHEVs)? How do EV and PHEV battery charger’s work?
2 How is pulse width modulation (PWM) used in the voltage control of DC-AC inverters? 10 C04
What are the advantages of using PWM for voltage control in DC-AC inverters?
What is a three-phase DC-AC inverter and why is it important in power systems? How 10 C04
3
does a three-phase DC-AC inverter work?
How does a multi quadrant DC-DC converter work? What are the benefits of using multi 10 C04
4 quadrant DC-DC converters in electric vehicles (EVs)?
Can you explain the operation of a buck-boost converter with a diagram? What are the 10 C04
5 advantages and disadvantages of buck-boost converters?
What is the principle of operation of a boost converter? How does the duty cycle affect 10 C04
6 the output voltage in a boost converter? What are some applications of boost converters?
UNIT-05
S. CO
Question Marks
No No.
Why an energy management control system is required in an HEV?
1 Do you think an elaborate energy management system similar to that applied to a hybrid 10 C05
vehicle, is required in an electric vehicle? Explain.
2 Classify and explain the different energy management strategies? C05
10
What are flywheels and how are they used for energy storage in EVs/HEVs?
3 What are the benefits and limitations of battery-based energy storage in HEVs? C05
Can you describe the characteristics and simplified models of fuel cells? 10
4 What are the advantages and disadvantages of using fuel cells in HEVs C05
10
How does super capacitor-based energy storage work in HEVs?
5 Can you explain the analysis and simplified models of super capacitor-based energy C05
storage? 10
6 What are the advantages and disadvantages of using flywheels for energy storage in C05
EVs/HEVs? 10
