Fundamentals and Applications of Electric Motors for Automotive Industries

As the electrification of automobiles is on the rise, it is imperative that the capabilities and limits of the associated devices and systems be understood at a higher level than previously considered adequate. For example, the Tesla Model S has 62 electric motors while the Model X has 70! They propel the vehicle and provide comfort too. Their design must reflect the worst case operating scenarios, duty cycles, environment, country of use and its standards, etc. Robust design of every component of a system requires a clear understanding of the fundamentals as well as the working knowledge of all interface equipment including the latest in applicable material and cooling technologies. Since the multidisciplinary challenges in designing an electric motor must meet often-conflicting requirements such as cost, efficiency, size, weight, reliability, etc., it is important that an engineer with specialization in one discipline has working knowledge of other relevant disciplines along with the latest analysis techniques. The goal of this course is to introduce the fundamental physics-based principles that govern the operation of electric motors.

What Will You Learn

By attending this seminar, participants will be able to:
  • Describe the operating principles of an electric motor
  • Provide examples of conflicting requirements
  • Explain the role of team members and the need for a multidisciplinary approach to design, build, test and successfully produce an electric motor
  • Choose the right electric motor for a given application
  • Identify the different categories of DC and AC motors
  • Identify the major differences between the different type of electric motors such as DC brushless, induction, PM, reluctance motor, etc.
  • Define/identify the torque/power vs. speed requirements for a specific functionality
  • Identify key subsystems of an electric motor such as stator, rotor and the auxiliaries including their components

Is This Course For You

This course is designed for engineers and managers who deal with linear or rotary motion either to convert electrical power to mechanical power or vice versa but have little or no background in how an electric motor works either independently or in a system. Gaining this familiarity and fundamental understanding could help avoid making wrong decisions that can adversely impact the company financials as well as reputation.

Materials Provided

This data is not available at this time

Course Requirements

This data is not available at this time

Topics

  • Introduction and Goals of the Course
  • Application Space - Where do we Need Linear/Rotary Motion? EVERYWHERE!
  • Automobile Specific Electric Motors – PM, Induction, Reluctance
  • Electromagnetic Fundamentals
    • Ampere’s Law
    • Faraday’s Law
    • Gauss’s Law
    • Maxwell’s equations
  • Magnetic Circuits
    • Basic concepts of magnetic circuits, electrical equivalence
    • Application of governing laws
    • Magnetic force/torque production
    • Non-Linear magnetic material behavior
    • Losses and efficiency
  • Magnetic Materials
  • Fundamental Motor Theory, Performance/Analysis, Construction
    • Electric motor classification
    • HEV system requirements
    • Transformers
    • Permanent magnet synchronous motors
    • Squirrel cage induction motors
    • Synchronous reluctance motors
    • PM assisted synchronous reluctance (PMASR) motors
    • DC Motors
    • Flux modulating motors
  • Numerical Methods for Electromagnetic Analysis, an introduction
  • Non-Electromagnetic Design and System Considerations