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Auto Study Guide Hybrid Drive Systems Chapter #38 Pages 694-723 Name__________________________ 48 Points Due Date________ 1. A ____________ vehicle uses 2 individual power sources to provide energy for propulsion. 2. A hybrid ______ - _____________ vehicle has an internal combustion engine and an electric drive system combined into one vehicle power train. 3. The extremely high _____________ and high ____________ stored and generated by gas-electric hybrid drive trains are the primary safety concerns when working on these vehicles. 4. About 110 years ago (1898) _____________ __________ built a car that used a small internal combustion engine to spin a large electric generator. 5. The 6 major assemblies working in unison under the computer control to propel a hybrid vehicle and to operate its electrical accessory systems are: The high–voltage ______________ ________ (many cells wired in series) The __________ - _______________ (that can change functions between propulsion & generation) The __________ __________ _________ (high voltage electronics to either invert or convert ac & dc) The ____________ __________ ______ (an electronic control unit that monitors and controls) ___________ ____________ (large, insulated conductors, often bright orange in color) The ______________ ______________ ___________ [ICE] (either gasoline or diesel for highway speeds) 6. The gas-electric hybrid uses a conventional _________ ____________ system to fuel the engine. 7. The motor-generator is used to both ____________ the vehicle and to help ________ the vehicle. 8. A vehicle that uses the motor-generator to initially accelerate and only runs the engine when the battery pack becomes discharged is known as a: [ ] full hybrid [ ] mild hybrid 9. A vehicle propelled by its internal combustion engine only and then shuts it down for coasting, braking, or stopping and then quickly restarts it when the brake pedal is released is a: [ ] full hybrid [ ] mild hybrid 10. Mild hybrids often have a ____ or a ____ volt electrical accessory system for EPS & HVAC. 11. When describing or classifying Hybrid Drive Train Configurations: Have a separate Generator & Traction Motor [ ] series [ ] parallel [ ] series-parallel Motor-Generator cannot simultaneously drive & recharge [ ] series [ ] parallel [ ] series-parallel Can use any combination of drive & recharge [ ] series [ ] parallel [ ] series-parallel 12. ________ - ____ hybrids can be connected to 120 - volt home outlet to fully recharge the battery pack. 13-18. The 6 modes of a full hybrid drive system operation are: _________________________ _________________________ _________________________ _________________________ _________________________ _________________________ 19. ______________________ braking uses the kinetic energy of normal stopping to recharge the high voltage battery pack. During quick, hard braking the conventional hydraulic system is used. 20. Hybrids use 2 voltage systems, the high-voltage system for the drive system and a ___ - volt system for the vehicle’s conventional electrical & electronic components – including the computer systems. 21. The hybrid high-voltage system can range from ______ to ______ volts ac or dc…That’s deadly! 22. High-voltage power cables are large in diameter and easily identified by their bright _________ color. 23-26. The full hybrid motor-generator or “MG” has 4 basic functions: Helps power the _________ _________ and propel the vehicle __________________ the high-voltage battery pack _____________ the internal combustion engine Helps to _________ and ________ the vehicle 27. The “MG” is usually a synchronous ac, permanent __________, brushless motor-generator design. 28. A __________________ can step dc voltage either up or down. 29. An __________________ can either change dc to ac or ac to dc. 30. The __________ _____________ is a planetary gearset used to control the transfer of power through the hybrid drive train. It is computer-controlled. 31. For safety against short circuits and electrocution, ____________ __________ interrupters, impact sensors or ___________ switches and high voltage fuses are used in hybrid systems. 32. Hybrid systems can be cooled by ______________ coolant, by ________ circulation, and by a separate R-134a refrigerant cooling system. 33. The hybrid power display informs the driver with a __________ __________ light, a hybrid __________ warning light, a ______________ ________ warning light, and a conventional MIL. 34. Besides wearing safety glasses, removing all conductive jewelry, and creating a high-voltage buffer zone when working on hybrids, OHSA-approved gloves with a _________ volt insulation value must be worn.