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G192157 Pages:2

PART C
Answer any two full questions, each carries 10 marks.
With the help of neat diagrams explain the four-quadrant chopper-based speed

control of DC motors.
Explain the working of fuel cell and also state its limitation.
Draw and explain the ideal torque speed characteristics of electric drive for
electric vehicles.
How is it possible to use fly wheel as an energy storage device for electric
vehicle?
Give the advantages and disadvantages of super capacitors as an energy storage
device in electric vehicle.
Explain the v/f speed control of induction motors used in electric vehicle.
What superior characteristics of super capacitors make it more suitable for
electric vehicle applications?
PART D

Answer any two full questions, each carries 10 marks.
With the help of neat figure explain the epicyclic gear transmission system used
in electric vehicle.
State and explain the optimal control problem associated with hybrid vehicle.
With the help of block diagram explain the hierarchical power and data
transmission networks of hybrid vehicles.
With the help of block diagram explain the battery management supporting
system of hybrid vehicle.

Enlist the factors which govern the sizing of power electronics for EHVs.

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