| Automotive Engineering Terms and Technology |
| 4WD
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Four Wheel Drive (similar to AWD)
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| ABS
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Anti-lock Brake System
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| ACC
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Adaptive Cruise Control (automatic speed control and adjustment of a vehicle with a car in front)
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| AER
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All Electric Range (electric or hybrid vehicles)
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| AKI
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Anti Knock Index (in Canada, USA and some other countries:
AKI = (R+M)/2)
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Knocking - in IC engines will run with vibratory-combustion sound with improper octane fuel
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ALPR
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Automated License Plate Recognition/Reader (camera)
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| ATDC
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After TDC (spark plug ignition timing, e.g. 10 degree ATDC)
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| AVI
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Automatic Vehicle Identification system
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| AWD
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All Wheel Drive
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| BDC
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Bottom Dead Center (bottom most point of piston in an IC engine; top
TDC)
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| BTDC
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Before TDC (spark plug ignition timing, e.g. 10 degree BTDC)
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| CCA
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Cold Cranking Amperes (battery capacity/rating)
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| CDH
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Change Depleting Hybrid
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| CEL
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Check Engine Light
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| DCT
|
Dual Clutch Transmission
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| DLC
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Diagnostic Link Connector (vehicle diagnosis connector)
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| DOHC
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Dual Overhead Cam Shaft
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| DRL
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Daytime Running Lights
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| DTC
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Diagnostic Trouble Codes
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| ECU
|
Engine Control Unit
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| EFI
|
Electronic Fuel Injection |
| ELD
|
Electronic Logging Device |
| EOLCS
|
Engine Oil Licensing and Certification System
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ESC
|
Electronic Stability Control
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| FWD
|
Front Wheel Drive
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| HEV
|
Hybrid Electric Vehicle
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| HFCV
|
Hydrogen Fuel Cell Vehicle
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| HID
|
High-Intensity Discharge (lamp)
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| HVB
|
High-Voltage Battery
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| HOV
|
High Occupancy Vehicle (minivan, 7-seater and above, also HOV lane)
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| IC
|
Internal Combution (engine) or ICE
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| ICE
|
Internal Combution Engine
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| ILSAC
|
International Lubricant Specification Advisory Committee
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| ITS
|
Intelligent Transportation Systems (replacement to
IVHS)
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| IVHS
|
Intelligent Vehicle-Highway System
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| IVMS
|
In Vehicle Monitoring System
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| JAMA
|
Japan Automobile Manufacturers Association, Inc.
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KPL
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Kilometers Per Litre (worldwide fuel consumption rating)
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kwh/100m
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Kilo watt hour/100 Miles (Hybrid electric vehicle fuel consumption rating)
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LDW
|
Lane Departure Warning
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LKAS
|
Lane Keeping Assist System
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LNG
|
Liquified Natural Gas
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LPG
|
Liquified Petroleum Gas
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LPR
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License Plate Recognition (camera)
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| MIL
|
Malfunction Indicator Light (CEL)
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| MON
|
Motor Octane Number
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| MPG
|
Miles Per Gallon (USA fuel consumption rating)
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MPGe
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MPG of gasoline equivalent (Hybrid electric vehicle fuel consumption rating)
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NPR
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Number Plate Recognition (camera)
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| OBD
|
On-Board Diagnostics
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| PHEV
|
Plug-in Hybrid Electric Vehicle
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| PHV
|
Plug-in Hybrid Vehicle
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PON
|
Pump Octane Number
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| RON
|
Research Octane Number
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| RdON
|
Road Octane Number
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| SAE
|
Society of Automotive Engineers (automotive standards governace organization, USA)
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| SES
|
Service Engine Soon - light/indicator
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| SOHC
|
Single Overhead Cam Shaft
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| SRS
|
Supplemental Restraint System (air bag)
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| Tire Code
|
Tire manufacturer's code NHTSA (USA)
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TDC
|
Top Dead Center (top most point of piston in an IC engine;
bottom BDC)
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| TPMS
|
Tire Pressure Monitoring Sensor/System (tire pressure sensor)
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| TSB
|
Technical Service Bulletin
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VIN
|
Vehicle Identification Number
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VTEC
|
Variable Value Timing Lift Electronic Control (Honda motor company)
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ZEV
|
Zero Emission Vehicle (typically electric or hybrid vehicles)
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225/60R16
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Euro-Metric size tire: 225 (mm) tire width, 60 - aspect ratio and R16 - rim diameter (inches)
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combined inch and mm specification
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P225/60R16
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P - Metric, 225 (mm) tire width, 60 - aspect ratio and R16 - rim diameter (inches)
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T135/80D16
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T - Temporary Tire, 135 (mm) tire width, 80 - aspect ratio and D16 - rim diameter (inches)
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combined metric and imperial specification
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