This webinar will be presented in four, two-hour sessions.
Electric drives are found in hybrid, plug-in hybrid, and hydrogen fuel cell vehicles, as well as battery electric vehicles. More than two million hybrid vehicles worldwide utilize electric drive components, and battery technology has matured enough to enable major manufacturers to develop light-duty and commercial electric vehicles for mass production and sale beginning in 2010-2012. It is also likely that many conventional vehicles will incorporate some form of idle-stop or stop-start system comprised of a low-output electric drive, as an integral part of efforts to meet U.S. CAFE fuel economy standards and EU CO2 emission requirements.
Industry professionals who want to have a general understanding of the structure and components of vehicular electric drives will benefit from this course, which will cover theory, design, operation, and diagnostics of all major components used in electric drives (battery packs, inverters, motor-generators, DC-DC converters, and charging apparatus) as applied to all forms of vehicles, including charge-sustaining hybrids, plug-in hybrids, fuel cell hybrids, and battery electric vehicles. Battery chemistry, charging systems, power conversion, switching techniques, and traction motor construction will be discussed in detail.
- Explain the design, function, and interactions of all major components of a typical electric vehicle powertrain
- Describe the operation, attributes, and behavior of battery packs, inverters, motor-generators, on-board and off-board charging systems, and DC-DC converters across all ranges of performance
- Identify the different design configurations and requirements of electric drives in hybrids, plug-in hybrids, fuel cell hybrids, and battery electric vehicles
- Recognize the performance demands on each component with regard to a desired performance profile for the vehicle
- Classify different types of battery packs, inverters, motors, and DC-DC converters
- Analyze the design and construction of a given electric powertrain, and evaluate its particular attributes and drawbacks
- Assess fault detection and protection strategies and circuits as well as on-board diagnostic requirements
- Appraise technical limitations of electric drive components, as well as design and technological trends that may address such limitations
Battery Packs, Capacitors, and Energy Management
- Calculating Onboard Energy Storage Needs
- Battery Chemistries and Lithium-Ion Sub-Chemistries
- Electrolytic Double Layer Capacitors
- Combination Systems (Hybrid Battery-Capacitor Systems)
- Battery Pack Performance
- Integrating an Energy Storage System into the Chassis
- System Relays and Power-on Sequences
- Battery Management Systems and Communication with the CAN Bus
- Thermal Management Systems and Considerations
- System Degradation
- Onboard Charging Strategies
- Failure and Diagnostic Modes
- Recycling and Recovery of Battery Cell Material
External Charge-Discharge Systems and DC-DC Converters
- Charging Systems for Electric Vehicles
- Inductive and Conductive Charging
- Charger-to-Vehicle Communication
- Power Supply Considerations
- Vehicle-to-Grid Systems
- Switching Power Supplies and DC-DC Converters
- Packing and Thermal Management of DC-DC Converters
- Failure and Diagnostic Modes
- Power Requirements of Drive-By-Wire Systems
Inverters and Fundamentals of Power Electronics
- Power Transistors And Switching Operation
- Basic Motor Control
- Producing AC Waves from a DC Supply
- Capacitors in Inverters
- Pulse-Width Modulation
- PWM Inefficiencies
- Overmodulation and Six-Step Control
- Space-Vector Modulation
- Boost Converters
- Thermal Management of Inverters
- Circuit Protection
- Failure and Diagnostic Modes
- Upcoming Power Electronics Developments and Enhancements
Synchronous and Asynchronous Motor-Generators
- Flux Linkages and Rotating Magnetic Fields
- Rotor and Stator Construction
- Torque Production, Motor-Generator Types
- Permanent-Magnet
- Induction
- Reluctance
- Enhanced Lundell Motor-Generators
- Operation in Motor, Generator, and High-Speed Modes
- Field-Weakening
- Choosing a Motor-Generator, Thermal Management of Motor-Generators
- EMF Considerations
- Failure Modes and Diagnostic Strategies
Jack Rosebro has taught hybrid, plug-in hybrid, and electric vehicle technology to a wide variety of industry professionals for the past seven years. He consults, writes, and conducts training seminars for Perfect Sky, Inc. throughout North America and Europe. Jack also writes on sustainable mobility for Green Car Congress. He received his M.Sc. in Engineering from Blekinge Institute of Technology in Sweden.
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NOTE: The live course presentations will be recorded and made available for 30 days to those who register by the deadline but are unable to attend on the dates/times listed above.
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