Powertrains

This module will focus on EV powertrains and its components and systems. The student will learn the three types of differentials used in EVs and the main components in a motor controller. The difference between 4WD and AWD powertrains is also discussed as well as the reason for using field weakening in regenerative braking. This module also introduces the student to EDUs and the operating principles of mild hybrid and full hybrid powertrains.

Learning Outcomes:

Upon completion of this module the student will be able to:

• Differentiate between powertrain, drivetrain and driveline
• Name the three main types of EV motors
• Describe the operation of an EV transmission
• List the three types of differentials used in EVs
• Explain the difference between 4WD and AWD
• Name the main components in a motor controller
• Describe the purpose of FOC in EV applications
• Explain how field weakening is used for regenerative braking
• Name the three main components in an EDU
• Describe how unsprung weight affects in-wheel motors
• Differentiate between a mild hybrid and full hybrid