Automotive Electronics Interview Questions For Engineers, Automobile

June 24, 2021February 21, 2022 CS Electrical And Electronics

Hello guys, welcome back to my blog. In this article, I will discuss automotive electronics interview questions for engineers, automobile interview questions, interview questions on automotive electronics, etc.

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Automotive Electronics Interview Questions

01. What is automotive electronics?

02. Compare different types of transmission systems in an automobile?

03. Elaborate on different segments of automotive industry and also discuss about automotive supply chain?

04. Explain the function and characteristics of automotive functional domains?

05. Explain hybrid electric vehicle (HEV) and its modes of operation?

06. List the three major reasons for using electronics in automotive systems and explain them briefly?

07. With the block diagram explain how emission control is done in automobile?

08. Illustrate the importance electronic transmission in an automotive system?

09. Discuss the need for legislation and write a note on Euro V Standard?

10. Suggest and explain the sensor with its components used for measuring the engine speed?

11. Propose a suitable sensor with related electronics to determine the spark advance and spark retard timings of an engine?

12. Explain the method to determine the intake manifold mass air flow rate (MAF) in the absence of MAF sensor?

13. Describe how a knock sensor operates to produce a signal?

14. Give the mechanism for actuating exhaust gas regulation?

15. List the different actuator devices and discuss their functionality for ABS, ESP and ECM?

16. Explain various applications for following sensors in context with automotive systems, temperature sensor, velocity sensor, pressure sensor, torque sensor?

17. Justify the use of sensors for following applications. Anti-collision system, Fuel-injection system, Vehicle types, speedometer?

18. Discuss the features automotive grade processors and its architectural attributes?

19. Explain the role of engine control system in terms of fuel economy, power and exhaust?

20. Draw a block diagram of an engine management system showing all the main inputs and outputs?

21. How to reduce the cost of hardware without removing any functionality in engine management system. Justify your answer the representative block diagram?

22. Imagine you are driving at a higher altitude explain how engine control system responds to the change in the engine load increased by the driver demand?

23. Determine the fuel injector pulse duration (base pulse width Tw) and fuel quantity for the four cylinder engine operating in open loop mode with 6000rpm, having a fuel flow rate of 0.0022Kg/sec and mass air flow rate of 0.0035Kg/sec.?

24. With a neat schematic explain the functions of 3-way catalytic converter?

25. With schematic and plot, analyze the engine performance with respect to exhaust gas recirculation?

26. Explain the need for ECU communication in an auto motives?

27. Explain the functions of different layers of CAN?

28. Explain the sequence of operation of driver’s air bag?

29. Differentiate between cruise control and adaptive cruise control?

30. Write a short note on autonomous vehicle?

31. Describe the safety standard ISO 26262?

32. Write a short note on safety process for product life cycle?

33. Differentiate between basic and multiplex wiring system?

34. Distinguish between on board and off board diagnostics?

35. Explain fault detection and correction?

36. Explain diagnostic tools applied to auto motives?

37. Describe the performance of an engine with respect to EGR, Air fuel ratio and ignition timing with the necessary plots. What are EURO and Bharat standards?

38. Determine the fuel injector pulse duration (base pulse width Tw) and fuel the fuel quantity for the four cylinder engine operating in open loop mode with 6000 rpm, having a fuel flow rate of 0.0022Kg/sec and mass ait flow rate of 0.0035Kg/sec

39. Explain the operation of Automatic Transmission System? How different Gear ratios can be obtained in Automatic Transmission System?

40. How the engine performance can be controlled using ignition timing? Suggest a suitable Instrumentation system with related electronics for closed loop control of ignition timing.

41. How performance is enhanced for TCS with an additional sensor I/P along with conventional wheel speed sensor I/P. Justify your answer with the representative block diagram

42. Discuss the configuration and significance of closed loop and open loop operation of Electronic fuel control system and also brief on the configuration and operation of Hybrid vehicle

43. Derive the expression for determining fuel injector pulse duration (base pulse width Tw) for open loop and closed loop modes using speed-density method of computing mass air flow rate.

44. How failure in master cylinder pressure sensor affects the performance of the ABS, ESP and TCS.

45. What is the coding technique used in Most Physical layer. Determine how the data 10100111001 is transmitted.

46. Describe, with the aid of a block diagram, the principle and operation of an Adaptive cruise control system.

47. Why traction control is necessary in automobiles? Suggest a electronic solution of Driving Dynamic control system

48. Why do media-oriented devices need netwoeking? Why is CAN not suitable to transport multimedia? Describe frame format for MOST 25.

49. Show how small nodes can be kept from overloading with received messages and message prioritization in case of CAN protocol.

50. Describe the working principle of electronic suspension system

51. Suggest a break circuit configuration for controlling over steer and under steer condition

52. Difference between manual and automatic transmission system !

53. What are the types of sensors and actuators used in automotive industry?

54. What is Engine speed sensor in vehicle?

55. What is wheel speed sensor in vehicle?

56. What is vehicle speed sensor in vehicle?

57. What is throttle position sensor in vehicle?

58. Why temperature sensor is used in vehicle?

59. What is mass air flow rate sensor in vehicle?

60. What is exhaust gas oxygen concentration sensor in vehicle?

61. What is Crankshaft angular position/RPM sensor in vehicle?

62. What is manifold absolute pressure sensor?

63. What is knock sensor in vehicle?

64. What is intake manifold of the engine?

65. What is piezoresistivity?

66. What is crankshaft in vehicle?

67. What is EGO sensor?

68. What is solenoid coil and why it is used in vehicle or car?

69. What are the fundamental components of the vehicle or car?

70. What is transmission system and purpose of the transmission unit?

71. When spark is produced in spark plug in vehicle?

72. What is Ignition system in vehicle?

73. What are the three buses which are required in computer system for communication?

74. Automotive grade processors characteristics?

75. What is need for engine management in vehicle?

76. What are the key issues in engine management system?

77. What is ECU (Engine Control Unit) in vehicle?

78. How can we improve engine efficiency in vehicle?

79. What is variable value timing in vehicle?

80. What is combustion flame and pressure sensing in vehicle?

81. What is wide range lambda sensor in vehicle?

82. What is Ignition control and its function in vehicle?

83. What are the components of ignition control?

84. What is Ignition timing advance or spark advance in vehicle?

85. What is engine calibration and why is done in vehicle?

86. What are the different methods of tuning?

87. What is chassis dynamometer and why it is used?

88. What is ABS(Anitlock Braking System)?

89. Why ABS (Antilock Braking System) is required for vehicle?

90. What are the components of ABS (Anti-lock Braking System)?

91. What is TCS or Traction Control System in vehicle?

92. What is ESP or Electronic stability program or Electronic stability control in vehicle?

93. What is emergency brake assist or brake assist in vehicle?

94. Explain briefly the characteristics of automotive grade processors?

I hope this article “Automotive Electronics Interview Questions” may help you all a lot. Thank you for reading this article “Automotive Electronics Interview Questions“.

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