automotive service - grafton school district...automotive service the belt system, called the belt...
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Automotive Service Modern Auto Tech Study Guide Chapter 38 Pages 694723 Hybrid Drive Systems 48 Points
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Híbrido La versión abreviada de vehículo eléctrico híbrido (HEV); Un tipo de vehículo que usa dos tipos de propulsión.
Hybrid abbreviated version of hybrid electric vehicle (HEV); a type of vehicle that uses two types of propulsion.
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There are about 1.1 million hybrid vehicles on the road and some experts say that within 5 years, 2025% of all new car & light truck sales will have
hybrid powertrains.
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Automotive Service 1. A ____________ vehicle uses 2 individual power sources to provide
energy for propulsion.
http://www.youtube.com/watch?v=w20T_7IhHo0
Automotive Service 2. A hybrid ______ _____________ vehicle has an gas internal combustion
engine and an electric drive system combined into one vehicle power train.
Diesel Electric Gas Electric Plugin
Automotive Service 3. The extremely high _____________ and high ____________ stored and
generated by gaselectric hybrid drive trains are the primary safety concerns when working on these vehicles.
High Voltage & High Current
Automotive Service 4. About 110 years ago (1898) _____________ __________ built a car that used
a small internal combustion engine to spin a large electric generator.
Reprimand Ferdinand OnDemand
Automotive Service 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 ______ _______ _______ (either gasoline or diesel for highway speeds)
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Automotive Service 6. The gaselectric hybrid uses a conventional ___________ ______________
system to fuel the engine…ICE
Fuel Injection Spark Ignition Compression Ratio
Automotive Service 7. The motorgenerator is used to both ____________ the vehicle
and to help ________ the vehicle.
Power & Stop Limit & Advance Afford & Payoff
Automotive Service 8. A vehicle that uses the motorgenerator to initially accelerate and only
runs the engine when the battery pack becomes discharged is known as a: [ ] full hybrid [ ] mild hybrid
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Automotive Service 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
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Automotive Service 10. Mild hybrids often have a ____ or a ____ volt electrical accessory system
for EPS & HVAC. (But also have a standard 12 volt system for lighting & accessories)
6 or 12 36 or 42 90 or 100
Automotive Service 11. When describing or classifying Hybrid Drive Train Configurations:
Have a separate Generator & Traction Motor
[ X ] series [ ] parallel [ ] seriesparallel
MotorGenerator cannot simultaneously drive & recharge
[ ] series [ X ] parallel [ ] seriesparallel
**Can use any combination of drive & recharge!!
[ ] series [ ] parallel [ X ] seriesparallel
Automotive Service Have a separate Generator & Traction Motor
[X] series [ ] parallel [ ] seriesparallel
Automotive Service MotorGenerator can’t simultaneously drive the vehicle & recharge the battery pack
[ ] series [X] parallel [ ] seriesparallel
Automotive Service Can use any combination of drive & recharge!
[ ] series [ ] parallel [X] seriesparallel
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Series Parallel SeriesParallel
Automotive Service A seriesparallel hybrid design
allows the vehicle to operate in
electric motor mode only or in
combination with the internal
combustion engine.
Automotive Service A drawing of the power flow in a typical serieshybrid vehicle.
This diagram shows the components included in a typical serieshybrid design. The solidline arrow indicates the transmission of torque to the drive wheels. The dotted line arrows indicate the transmission of electrical current.
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Automotive Service The power flow in a typical parallelhybrid vehicle.
Automotive Service Diagram showing the components involved in a typical parallelhybrid vehicle. The solidline arrows indicate the transmission of torque to the drive wheels, and the dottedline arrows indicate the flow of electrical current.
BELT ALTERNATOR STARTER SYSTEMS (BAS) Automotive Service
The belt system, called the belt alternator starter (BAS), is the least expensive system that can still claim the vehicle is a hybrid.
For many buyers, cost is a major concern and the BAS system allows certain hybrid features without an entire redesign of the engine and power train. Consumers can upgrade to BAS hybrids at a reasonable cost and will get a 2% to 5% increase in fuel economy, mostly affecting city mileage.
BAS replaces the beltdriven alternator with an electric motor that serves as a generator and motor. When the engine is running the motor, acting as a generator will charge a separate 36volt battery (42volt charging voltage).
When the engine needs to be started again after being in idle stop, the BAS motor cranks the engine by taking power from the 36volt battery pack and applies its torque via the accessory belt
Automotive Service The BAS system is used in the Saturn VUE hybrid SUV.
Automotive Service 12. ________ ____ hybrids can be connected to 120 volt home outlet
to fully recharge the battery pack.
Plugin Refill Update
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Automotive Service 12. ________ ____ hybrids can be connected to 120 volt home outlet
to fully recharge the battery pack.
Plugin Refill Update
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Automotive Service 1318. The 6 modes of full hybrid drive system operation are:
Allelectric drive mode Motorassist mode Idle stop mode Regenerative braking mode Engine starting mode Battery pack recharging mode
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Automotive Service 19. __________________ braking uses the kinetic energy of normal stopping to
recharge the high voltage battery pack. NOTE: During quick, hard braking the conventional hydraulic system is used.
Regurgitate Regenerative My Generation
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Automotive Service 20. Hybrids use 2 voltage systems, the highvoltage system for the drive system
and a ___ volt system for the vehicle’s conventional electrical & electronic components – including the computer systems.
6 12 18
Automotive Service 21. The hybrid highvoltage system can range
from ______ to ______ volts ac or dc… That’s deadly!
140 to 650 360 to 420 90 to 100
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Automotive Service 22. Highvoltage power cables are large in diameter and easily identified by their
bright _________ color.
Yellow Blue Orange
WARNING: Power remains in the highvoltage electrical system for up to 10 minutes after the HV battery pack is shut off. Never touch, cut, or open any orange highvoltage power cable or highvoltage component without confirming that the high voltage has been completely discharged.
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JumpStarting The 12volt auxiliary battery may be jump started if the vehicle does not start. The 12volt auxiliary battery is often located under the hood but can also be located in the cargo area of some HEVs.
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Automotive Service 2326. The full hybrid motorgenerator or “MG” has 4 basic functions:
Helps power the _________ _________ and propel the vehicle __________________ the highvoltage battery pack _____________ the internal combustion engine Helps to _________ and ________ the vehicle
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Ford Escape
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Ford Fusion
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That software challenge has now been conquered, says a Southern California company called Plug In Conversions Corporation (PICC). The company reports it has completed a breakthrough software upgrade that allows its Prius plugin conversion kit to allow driving up to 70 miles per hour on battery power alone. In the past, PICC says that Toyota programming has limited plugin conversions to an electric top speed of 34 mph unless the electric motor was forced to run above its recommended speed range, so this is quite the accomplishment. The software upgrade is based on technology developed by Ewert Energy Systems, which has granted PICC exclusive rights for its use in Prius plugin conversions.
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Automotive Service 27. The “MG” is usually a synchronous ac permanent _________,
brushless motorgenerator design.
Magnet Vacation Disability
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Automotive Service 28. A ___________ can step DC voltage either up or down. Converter
Inverter Reverter
Automotive Service 29. An _______________ can either change DC to AC or AC to DC. Converter
Inverter Reverter
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Automotive Service 30. The __________ _____________ is a planetary gearset used to control
the transfer of power through the hybrid drive train. It is computercontrolled.
Automotive Service 30. The __________ _____________ is a planetary gearset used to control
the transfer of power through the hybrid drive train. It is computercontrolled.
Automotive Service 31. For safety against short circuits and electrocution, __________ __________
interrupters, impact sensors or ___________ switches and high voltage fuses are used in hybrid systems.
Ground Fault & Inertia Power Fault & Inertia Nobody’s Fault & Inertia
Automotive Service 32. Hybrid systems can be cooled by ______________ coolant, by blower fan
circulating ________ past the battery pack, and/or by a separate R134a refrigerant cooling system.
Engine & Air Passenger & Air Refrigerant & Air
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Automotive Service 33. The hybrid power display informs the driver with a ________ ______ light,
a ____________ warning light, a ______________ ________ warning light, and a conventionalMIL.
Drive Ready, Master, Battery Pack
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Automotive Service 34. Besides wearing safety glasses, removing all conductive jewelry, and creating
a highvoltage buffer zone when working on hybrids, OHSAapproved gloves with a _________ volt insulation value must be worn.
250 750 1000
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Automotive Service Use of a warning cover over the steering wheel helps others realize that work is being performed on the highvoltage system and that no one is to attempt to start or move the vehicle.
A lock box is a safe location to keep the ignition keys of a hybrid electric vehicle while it is being serviced. Notice that this lock box has two separate locks so it would require two people to open, helping to insure that no harm is done by accidentally attempting to start a HEV.
Insulated tools, such as this socket set, would provide an additional margin of safety to the service technician when working around highvoltage components and systems.
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GM Future Car By: Dustin Westphal 12009
The Power Cell • GM Skateboard car, powered by Hydrogen. . .four wheel drive
electric engines, powered by the electricity produced by the hydrogen fuel cell. water is the only emission.
How it Works
Part Description
Hydrogen Fuel Cell for Power
HyWire • Hywire is a descendant of the GM Autonomy released at the
2002 North American International Auto show. The Autonomy is a car which combines a hydrogen fuel cell with drive by wire technology. These technologies in combination allow all the mechanicals of the car to reside as a separate component to the body and passenger space.
• A single docking port provides the electrical connection between the chassis and body. There are 10 pickup points where the body mounts the chassis. Such few attachments provide maximum flexibility when designing a body.