I.D.# PD330904ON
Access Period: 30 Days
Duration: 2 Hours

High-voltage, high-current energy storage systems and electrical circuits in many current and future alternative- propulsion powertrains present unique challenges to the automotive industry. Care must be taken to minimize risk to all who come into contact with the vehicle throughout its development and life cycle, including powertrain developers, assembly line workers, service technicians, vehicle occupants, and first responders. Significant risk to life and limb can arise from technical issues surrounding these vehicles.

This course has been approved by the Accreditation Commission for Traffic Accident Reconstruction (ACTAR) for 2 Continuing Education Units (CEUs). Upon completion of this e-seminar, accredited reconstructionists should contact ACTAR, 800-809-3818, to request CEUs. As an ACTAR approved course, the fee for CEUs is reduced to $5.00.

This course also satisfies a requirement in the Accident Reconstruction Certificate Program.

Is this Web Seminar RePlay for You?

Light and heavy duty engineers and technicians who work directly with high-voltage vehicle circuits in hybrid, plug-in hybrid electric, and/or fuel cell hybrid vehicles, as well as component suppliers, safety officers and/or personnel who plan to develop high-voltage safety programs or procedures, will benefit from this course.

Have colleagues who need this course? See Special Offers to the right.

Click on the Requirements tab to make sure you are properly equipped to interact with this web seminar replay.

0.2 CEUs


"This was probably the best online instruction I've received, and better than many live sessions I've done. Jack Rosebro was spot on and very up to date and informative."
John W. Froeb
Senior Product Design Engineer
Parker SSD Drives Division

"Great means of accomplishing training while travel budgets are tight. I didn't seem to lose much by being physically absent. (I) liked the session times and ability to stay home to learn the material."
Jason Osborn
Design Engineer, Sr
Bobcat Company

"Web seminars are a very user friendly, convenient, low cost educational alternative."
Bob Pheiffer
Business Development
InterRegs - International Regulations


By participating in this course, you will be able to:

  • Describe component functions and locations in a typical high-voltage powertrain as well as the onboard safety systems associated with such components
  • Explain the general effects of electric current on the human body
  • Know which national and international safety standards apply to high-voltage vehicle circuits
  • Summarize HV safety working issues that may be present during a vehicle's development, assembly, service, and operation
  • Identify general issues associated with extrication of occupants from vehicles with high-voltage powertrains


  • General high-voltage electrical safety issues in vehicles
    • Issues with energy storage systems
    • Issues with motor controllers
    • Issues with motor-generators
    • Issues with DC-DC converters
    • Relationship between high-voltage (HV) bus and 12V bus
    • Gasoline-electric hybrids (HEV)
  • Electrical injury
    • Effects of electrical energy on the human body
    • Electrical resistance of the human body
    • "Let-go" current
    • Common electrical accidents
  • Industry protection against electrical injury
    • Standards and regulations organizations
    • Personal protective equipment
  • On-board vehicle protection against electrical injury
    • Insulation and insulation breakdown
    • Fusing and interlocks
    • Ground-fault protection systems
    • Discharge and isolation circuits
  • Powertrain development issues
    • Working with prototype battery packs
    • Working in powertrain test cells
  • Service and repair issues
    • Hazards associated with routine maintenance
    • Hazards associated with HV component diagnosis and repair
    • General industry safety procedures
  • Vehicle occupant and first responder issues
    • Protective measures for vehicle occupants
    • Hazards associated with vehicle occupant

Instructor(s): Jack Rosebro

Jack Rosebro has taught hybrid, plug-in hybrid, and electric vehicle technology to a wide variety of automotive industry professionals for the past ten years. Since 2006, he has developed and delivered curriculum for Perfect Sky, Inc. throughout the US and Canada. He also consults to community colleges that are integrating hybrid and electric vehicle technology into their curricula. Jack writes about hybrid technology, regulatory issues, and sustainable mobility for Green Car Congress, and is a frequent speaker at industry conferences. Previously, Jack developed and taught courses on hybrid and electric vehicles, air/fuel systems, OBD-II self-diagnostic systems, and emission control systems. He received his M.Sc. in Engineering from Blekinge Institute of Technology in Sweden.

Materials Provided

  • 30 days of online single-user access (from date of purchase) to the one session, approximately two hour, recorded presentation
  • Course workbook (downloadable, .pdf's)
  • Online learning assessment
  • Instructor follow up to your content questions
  • .2 CEUs* (with satisfactory assessment score)
*SAE International is authorized by IACET to offer CEUs for this course.

About RePlays

SAE Web Seminar RePlays are audio/visual captures of live web seminars. The course sessions are unedited to include the results of interactions with the live participants and to expedite course availability. A learning assessment is available at the end of the course to reinforce learning and retention and gauge your understanding of the topic.

Equipment Requirements

  • Windows 7, 8 (Apple OSX and Unix/Linux are not supported but may work)
  • Pentium 4 PC
  • Minimum 512 MB RAM; recommended 1 GB RAM
  • Internet Explorer 10-11, Mozilla Firefox 37 , Google Chrome 42 (Safari and Opera are not supported)
  • Broadband-1Mbps minimum

Full Course
Members save up to 20% off list price.
Multiple Seat Discount - 50% off more than one!
1. Purchase access to this web seminar replay at the list or appropriate member price and enjoy a 50% discount off the list price of the other web seminars or recordings in the SAE Hybrid Fundamentals Web Seminar Series.


2. Purchase access for one individual at the list or appropriate member price, then buy seats for additional employees at half off the list price. *Contact SAE Customer Service to arrange online access for all individuals at the same time or mention the confirmation number for the first purchase. The offer is good for web seminars or replays in only the same series. All registrants will receive a personal account and opportunity for CEUs.

*Discount applies to web seminar(s) and/or replay(s) of equal or lesser list fee. Registration by phone with SAE Customer Service is required to take advantage of these discounts.

Email CustomerService@sae.org, or call 1-877-606-7323 (U.S. and Canada) or 724-776-4970 (outside US and Canada).
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