Automatic Transmission Fundamentals

Automatic transmissions have had enormous impact on the automotive industry, over 96.3% of the vehicles sold in the US as of 2018 are equipped with automatic transmissions according to carmax. Whether you are an engineer, mechanic, or a manufacturer in the automotive industry you have most likely worked with an automatic transmission in some fashion.

Automatic Transmission Diagram

Our course introduces learners to basic components, concepts, and general terminology associated with automatic transmissions. This information is critical to automatic transmission systems and is brought to life in this course using realistic 3D models, helpful animations, and interactive quizzes. The material in this course is beneficial for both experienced automotive engineers and those who are new to the field.

Learning Objectives
  • Understand how the concepts of torque, power, and gear ratio apply to transmissions.
  • Recall some of the primary components of an automatic transmissions.
  • Recognize elements of the torque converter.
  • Understand the functioning of a planetary gear set.
  • Recall the elements associated with clutch plates.
  • Relate the common failure modes associated with automatic transmission.
This course includes
Pre / Post-Assessment
Course Length: 2 h
Completion Certificate

Table of Contents

Introduction to Automatic Transmissions


  • Parts and Terminology
  • Transmission Related Concepts
    • Power
    • Torque
    • Gear Types
      • Spur Gear
      • Bevel Gear
      • Planetary Gear Set
      • Worm Gear
      • Helical Gear
      • Herringbone Gear

Transmission Components


  • Transmission Case
  • Torque Converter
  • Clutch Plates
  • Planetary Gear Sets
  • Valve Body
  • Differential

Newer Developments and Failure Modes


  • Newer Developments
    • Dual Clutch Transmission (DCT)
    • Continuously Variable Transmission (CVT)
    • Hybrid Transmissions
  • Failure Modes
    • Low Fluid
    • Damaged Clutch Plates
    • Faulty Sensors

Course Completion

After completing this course you will receive a certificate of completion. If you like to continue learning about manufactured products you may be interested in our courses in drive axles, braking systems, gear boxes or more of our courses related to the automotive industry.

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