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10000EE469122101

Discuss the different considerations in the design of power control strategies for
HEVs.
Explain the different subsystems in electric vehicle with neat block diagram.

Explain with suitable block diagram the fuel efficiency of electric vehicle.

PART C

Answer any two full questions, each carries 10 marks.
Discus the electrical drive system for an electric vehicle with suitable block
diagram.
Explain chopper-controlled 9൦ motor (second quadrant-armature control) drive
system with suitable figures and write the equations of output voltage and duty
cycle.
Explain the implementation of closed loop speed control of a two quadrant 3-
phase converter-controlled (armature control) DC motor drive system with
suitable block diagram.
Discuss the implementation of Pulse Width Modulation controller for a DC
motor chopper drive.
Explain the basic principle, advantages and disadvantages of fuel cell.

What is meant by charge equalization of batteries?

PART D

Answer any two full questions, each carries 10 marks.
Discuss the approximate sizing of battery for a new design of electric vehicle.
Describe the selection of power semiconductor device and its range of voltage
and current for the converter in EVs.
Explain the available options of the energy storage technologies for EVs.
Explain the fuzzy logic-based energy management control strategy used in
EHVs.
Discuss the typical architecture of electronic control unit for EVs/HEVs.

Explain the major functions of control systems in EVs/HEVs.

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