Hybrid and Electric Bus Courses

corporate partner smiling while standing in front of two electric vehicles

Level 1 - Safety and Fundamentals

High Voltage Safety and Hybrid Vehicle Systems (CESD-110)

  • Describe safety precautions and personal protective equipment (PPE) used when working on or around high voltage vehicles. Inspecting, and testing of PPE
  • Explain safe depowering procedures for hybrid and electric bus, function of main hybrid electric vehicle components
  • Identify different hybrid electric vehicle types, platforms, component configurations, and main auxiliary systems found on hybrid and electric bus
  • Describe strategies such as Geo fencing and emergency backup power supply using Hybrid and Electric Bus

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Introduction to Hybrid and Electric Bus Overview (CEHB-109)

  • Define and compare hybrid, electric, plug-in and traditional combustion engine bus technology
  • Define commonly used components within a Hybrid or Electric bus electronic system
  • Explain the importance of Lock out Tag out (LOTO) and the sequence of performing a LOTO
  • Demonstrate a LOTO procedure in the lab
  • Explain the purpose and operating principles of: IGBT, Contactors, Relays, Precharge circuit and Precharge resistors, and Keying Resistors (when used)
  • Discuss driver interactions and concerns such as vehicle interfaces, charging and range
  • Explore the operation of main hybrid and electric vehicle components including low and high voltage systems
  • Investigate passenger safety systems and emergency response guides
  • Define battery and transmission technologies used in hybrid and electric bus

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Level 2 - Systems, Components and Troubleshooting

Introduction to High Voltage Battery Systems (CEHB-111)

  • Define various Battery types used in Hybrid and Electric bus, Cell pack vs Module pack energy storage system (ESS)
  • Explain the importance and process of Battery management systems; Balancing, temperature regulation, High voltage interlocks (HVIL) and Manual safety disconnect (MSD)
  • Define High voltage battery ratings and specification as they relate to transit such as; State of charge, KW/h and Amp/h, energy density and power factor
  • Discuss the different types of chargers, charging configuration and level of charging found on Hybrid and Electric bus and factors that determine which charging system is used
  • Demonstrate maintenance and diagnostics on High Voltage battery
  • Deenergizing, MSD, HVIL, Isolation faults
  • Outline the causes and effects of a thermal event, such as; Emergency response guidelines and procedures to thermal event, and environmental impact

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Introduction to Drive Systems, Brake and Regenerative Braking (CEHB-112)

  • Define Hybrid and Electric Bus drive systems
  • Outline the operation principle of a Drive motor
  • Demonstrate testing loss of Isolation on the Drive system
  • Outline the similarities between Induction and Permanent Magnet Drive Motor
  • Explain Braking strategies adopted for Hybrid and Electric Bus
  • Explain the operating principles of Regenerative braking
  • Discuss maintenance and cost related

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Hybrid and Electric Bus Maintenance and Accessory Systems (CEHB-113)

  • List the High Voltage and Low Voltage accessories found on Hybrid and Electric Bus
  • Explain the operating principle of Hybrid and Electric bus accessory circuits
  • Air Compressor, Power steering pump, Heating and Cooling, and Door controls
  • Discuss the benefits Electro mobility plays with Telematics
  • Outline the maintenance requirements for each major component on Hybrid and Electric Bus
  • Demonstrate standard operating practices for maintaining hybrid and electric bus

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Advance Troubleshooting and Systems Overview

  • Explain the fundamentals of using wiring schematics used in the Transit sector
  • Define CAN communication and the various DATA bus protocol found on Hybrid and Electric bus
  • Outline CAN bus troubleshooting and manipulation
  • Outline various Electronic Service tools used on Hybrid and Electric Bus