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50, will be treated as malpractice. ing blank pages. pulsorily draw diagonal cross tines on the remainin, ppeal to evaluator and /or equations written eg, 42+8 2. Any revealing of identification, aj Important Note : 1. On completing your answers, comy CB CSISGRENE USN | | | 18EE752 Seventh Semester B.E. Degree Examination, Feb./Mar. 2022 Electric Vehicle Time: 3 hrs. Max. Marks: 100 10 Note: Answer any FIVE full questions, choosing ONE fuil question from each module. Module-1 a, What are Electric Vehicles? List the features of electric vehicles along with top level perspective diagram. (10 Marks) . Explain vehicle mechanics considering Newton's second law of motion. (06 Marks) ¢. Define: (i) Tractive force (ii) Road load force (04 Marks) ‘OR a. Describe the laws of motion also mention power for i"" torque. (10 Marks) b. With equation, explain constant and non-constant Fir on level road. (10 Marks) Moduie-2 a. Explain components of conceptual illustra general EV configuration. (10 Marks) b. With the sketch, explain traction motor characteristics. (10 Marks) OR a. Explain the classification of hybrid electric vehicles. (10 Marks) b. With a neat sketch, explain configuration of'a parallel hybrid electric drive train. (10 Marks) Module-3 a. Explain components of a battery cell with neat diagram. (10 Marks) b. List the major types of rechargeable batteries considered for EV and HEV. (06 Marks) ¢. Define battery pack and its significance, (04 Marks) OR a. With equations and sketch explain lead acid battery cell charge and discharge operation. (10 Marks) b. List the fuel cell types. (06 Marks) ¢. Write a note on super capacitors used as energy source in EV. (04 Marks) Module-4 a. Explain the functional block diagram of a typical electric propulsion system. {10 Marks) 6. With the equations, explain basic operation principle of induction motor. (10 Marks) OR a. Explain the advantages and disadvantages of BLDC motor. {10 Marks) b. With the block diagram, explain Switched Reluctance Motor drives. (10 Marks) Module-§ a. Explain the configuration of a typical series hybrid electric drive train. (10 Marks) b. With the block diagram, explain overall contro! scheme of the parallel hybrid drive train. (10 Marks) OR a, Explain the configuration of the parallel torque-coupling hybrid drive train. (10 Marks) b. Explain the energy storage design. (10 Marks) eee 
