GLOSSARY
ABS
Anti-Lock Braking System
AC
All modes of conditioning air inside the passenger area of the vehicle: Heating, Cooling, Venting
A/C
Condensing of air to cool it and to remove humidity.
Assist
Hybrid system with a small battery-pack and a single small electric-motor that provides peak power for the
gasoline-engine during periods of acceleration.
AT-PZEV
Advanced Technology Partial Zero Emission Vehicle
"B" Gear
Engine Braking, (it isn't actually a gear) when you shift the transmission to this setting the engine will be used
to slow down the car, it works similar to an exhaust brake used on the large semi-trucks (except the one on
Prius is totally silent).
C
Celsius, a measure of temperature, (C * 1.8) + 32 = F, -25°C = -13°F, -15°C = 5°F, -5°C = 23°F,
0°C = 32°F, 5°C = 41°F, 20°C = 68°F, 25°C = 77°F, 30°C = 86°F
CARB
California Air Resources Board, an agency dictating emissions requirements for cars sold in California. (These
are often more strict than Federal standards.)
CAT
Catalytic Converter, a vital component in the emissions system
CC
Cruise Control
Cd
Coefficient of drag (0.29 for the Original & Classic Prius, 0.26 for the HSD Prius)
CEL
Check Engine Light
Classic
The term used to identify the 2001, 2002, 2003 model years of Prius.
CVT
Continuously Variable Transmission, in Prius is a "Planetary" design using a power-split device, other CVT
vehicles use a "Cone & Belt".
Dinosaur
A very large, gas-guzzling, high-emission vehicle based on 20th century technology.
DRL
Daytime Running Lights
DVD
Digital Versatile Disc, used for the Navigational system in Prius
ECU
Electronics Control Unit, the amazing computer that monitors and controls the two motor-generators, the gas
engine, the motion of the planetary gear set, the battery pack power levels etc. to provide the Prius' smooth
acceleration and speed control.
Engine
The common term used to refer to the power device which runs on gasoline.
EPA
Environmental Protection Agency, the group responsible for rating the emissions and gas mileage of vehicles
sold in the United States.
EV
Electric Vehicle, powered exclusively by a battery-pack charged before use
F
Fahrenheit, a measure of temperature, (F - 32) / 1.8 = C, -15°F = -26.11°C, 0°F = -17.78°C, 15°F = -9.44°C,
32°F = 0°C, 40°F = 4.44°C, 60°F = 15.56°C, 70°F = 21.11°C, 80°F = 26.67°C
FCHV
Fuel Cell Hybrid Vehicle, a fuel-cell vehicle that takes advantage of hybrid technology including the use of a
battery-pack
FUD
Fear, Uncertainty, Doubt
Full
Hybrid system with a large battery-pack, a small electric-motor, at least one large electric-motor, and a
gasoline-engine that combined provide a wide variety of combustion & electric propulsion abilities.
GPS
Global Positioning System, this is the part of the Prius Navigation System that identifies your exact location
Prius User-Guide 42 of 45 Last Updated: 2/07/2006
