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Car acronyms and abbreviations

Acronyms Name Description
AAC Adaptive Cruise Control automatic adaptive system to control the travel speed of the car
ABS Anti-lock Braking System braking system that prevents the wheels from locking
AC Alternative Current alternative electric current
AFS Active Front Steering electronic car steering control (Cadillac)
ATF Automatic Transmission Fluid transmission oil for automatic (gearbox)
AMS Alternator Management System charging alternator control system used by Hyundai-Kia
ASC Active Stability Control electronic system for control stability of the car (Mitsubishi)
AT PZEV Advanced Technology Partial Zero Emission Vehicle pollution levels regulated by CARB
AWD All Wheel Drive electronically controlled all-wheel drive
B100 Biodiesel 100% 100% biodiesel fuel
B20 Biodiesel 20% diesel oil containing 20% biodiesel
BARO Barometric Sensor atmospheric air pressure sensor
BAS Brake Assist System assist system to the braking force
BCM Body Control Module electronic control module of the interior
BMW Bayerische Motoren Werke AG Bavarian Motors Factory Public Company
CAI Controlled Auto Ignition controlled auto ignition engine
CAN Controller Area Network communication protocol developed by Bosch
CARB California Air Resource Board organization whose main activity is regulation of automobile emissions level for the US state of California
CC Continious Current direct electric current (DC)
CCS Combined Combustion System diesel engine with combined combustion system
CIDI Compression Ignition Direct Injection compression ignition engine and direct injection
CKPS Crankshaft Position Sensor position sensor of the mechanical part that converts reciprocating motion in rotational motion
CMPS Camshaft Position Sensor sensor that monitor the position or rotational speed of the crankshaft
CNG Compressed Natural Gas methane stored at high pressure
CPU Central Processing Unit computer’s central processing unit
CR Common Rail a variant of direct fuel injection system for petrol and diesel engines
CRS Common Rail System system with common rail fuel injection
CRT Continuously Regenerating Trap particulate filter system with a catalytic oxidation
CSO Cylinder Shut-Off cylinder deactivation system from VW
CVT Continuously Variable Transmission continuously variable gearbox
CVVT Continuous Variable Valve Timing variable distribution system of the phases
DCT Double Clutch Transmission transmission (box) with double clutch
DCU Dosing Control Unit electronic control module of AdBlue injection system (Bosch)
DDS Deflation Detection System system for indirect monitoring of the tire air pressure (Continental)
DDWS Dunlop Deflation Warning System system for indirect monitoring of the tire air pressure (Dunlop)
DOC Diesel Oxydation Catalyst oxidation catalyst for diesel engines
DOHC Double OverHead Camshaft distribution with two intake valves per cylinder, with the camshafts in the cylinder head
DLC Diamond Like Carbon carbon crystal structure similar to diamond
DMF Dual Mass Flywheel double flywheel used to automobiles
DSC Dynamic Stablity Control vehicle stability control system
DSTC Dynamic Stability and Traction Control electronic system for vehicle’s stability control (Volvo)
DTC Diagnostic Trouble Code error code used to diagnose cars
DVD Digital Video Disc optical storage medium
EBD Electronic Brakeforce Distribution electronic system of the braking force distribution
ECT Engine Coolant Temperature Sensor motor temperature sensor
ECO ECOnomical driving mode of a vehicle in order to reduce fuel/energy consumption
ECU Electronic Control Unit unit that controls one or more of the electrical system or subsystems in a motor vehicle
ECM Engine Control Module engine control module (computer injection)
EDC Electronic Diesel Control electronic injection systems produced by Bosch
EPROM Erasable Programmable Read Only Memory programmable ROM memory and deletable
EEPROM Electrically Erasable Programmable Read Only Memory programmable ROM memory that is electrically deletable
EFI Electronic Fuel Injection electronically controlled fuel injection system (indirect injection)
EGR Exhaust Gas Recirculation exhaust gas recirculation system
EMCD Electro-Magnetic Control Device electromagnetic coupling unit (wheel drive system used on Renault cars)
EMS Engine Management System Modern ECU which can process the inputs from the engine sensors in real-time
EN European Norm european standard
EOBD European On Board Diagnosis european version of OBD
EPA Environmental Protection Agency US agency which has the object of activity environmental protection
EPS Electric Power Steering electric assisted steering
ESM Energy Smart Management intelligent management of electrical energy (Renault)
ESP Electronic Stability Program electronic system which control vehicle’s stability
EV Electric Vehicle electric propulsion vehicle
EVAP Evaporative Emission Control System capture system and recirculation of gasoline vapor
EVSC Electronic Vehicle Stability Control electronic system of vehicle’s stability control (Isuzu)
FGT Fixed Geometry Turbine machines are designed to operate at maximum efficiency
FSI Fuel Stratified Injection gasoline direct injection system with stratified mixture
GCI Gasoline Compression Ignition gasoline engine with compression ignition
GDI Gasoline Direct Injection gasoline direct injection system (Mitsubishi)
GPCU Glow Plug Control Unit control unit for preheating glow plug (incandescent)
GPS Global Positioning System a space-based satellite navigation system
HCCI Homogeneous Charge Compression Ignition homogeneous mixture engine and compression ignition
HCSI Homogeneous Charge Spark Ignition homogeneous mixture engine and spark ignition
HEV Hybrid Electrical Vehicle hybrid car (electric + thermal)
HIS Hidraulic Impulse Storage hydraulic accumulator impulse used in automatic transmissions ZF
HP Horse Power horsepower, unit of measurement of power
IAC Idle Air Control intake air control valve at idle speed
IAT Intake Air Temperature Sensor monitors the temperature of the air entering the engine
ICT Information and Communication Technology System database system that communicates with the vehicle for providing information (Nissan)
IMV Inlet Metering Valve pressure control valve discharged by the high-pressure injection pump Delphi
IVD Interactive Vehicle Dynamics electronic system for automobile stability control (Ford)
ISC Idle Speed Control Valve control valve at idle speed
ISG Idle Stop & Go stop & start system used Hyundai-Kia
ISO International Organization for Standardization is an international standard-setting organization
KAM Keep Aive Memory nonvolatile memory (data is preserved when power is off)
KWP Key Word Protocol communication protocol used for automotive diagnostics and reprogramming the cars computer
LED Light Emitting Diode light emitting diode (emits light when a an electric voltage is supplied)
Li-Ion Lithium-ion Battery battery with carbon negative electrode, the positive is a metal oxide and electrolyte is a lithium salt
LIN Local Interconnect Network communication protocol
LONGFT Long-term Fuel Trim long-term correction of injected fuel quantity
LPG Liquefied Petroleum Gas liquid propane or butane
LSD Limited Slip Differential differential with limited “sliding”
LSU Lambda Sensor Universal lambda planar probe (Bosch)
MAF Mass Air Flow Sensor intake air mass sensor name used to find out the mass flowrate of air entering a fuel-injected internal combustion engine
MAP Manifold Absolute Pressure intake air pressure sensor name used in engine electronic control system
MiL Malfunction Indicator Lamp on board car warning light that indicates a defect in the components that have direct or indirect impact on pollutant emissions
MON Motor Research Number the ‘Motor’ method of calculation of a gasoline octane number
MOST Media Oriented Systems Transport communication protocol
MPI Multi-Point Injection multi-point injection (one injector per cylinder)
MSP Maserati Stability Program electronic system for vehicle stability control (Maserati)
NAFTA North American Free Trade Agreement trade liberalization agreement between the US, Canada and Mexico
NEDC New European Driving Cycle european cycle of the cars approval
NHSTA National Highway Traffic Safety Administration US Agency for road traffic safety
Ni-HM Nickel–Metal Hydride Battery battery with a negative metal hydride electrode and positive cadmium electrode
NVG New Venture Gear manufacturing company of transmissions for cars
NTC Negative Temperature Coefficient thermistor with negative temperature coefficient
OBD On Board Diagnosis set of regulations that define the diagnosis on board’s car
PACE Premier Automotive Suppliers’ Contribution to Excellence award award from autonews.com for auto parts manufacturers
PCM Powertrain Controle Module control module of the powertrain (computer that controls thermal engine and automatic gearbox)
PCS Precision Control System electronic system for stability control of the car (Oldsmobile)
PCV Positive Crankcase Ventilation recirculation of crankcase gases from an internal combustion engine
PEM Power Electronics Module module that contains the power electronics for controlling an electric car
PFI Port Fuel Injection fuel injection system in gate of the valve (indirect injection)
PHEV Plug-in Hybrid Electrical Vehicle hybrid car (thermal + electricity) to which batteries can be charged from the electricity grid
PSD Power Split Device the planetary gear mechanism used by Toyota Prius
PSM Porsche Stability Management electronic system for stability control of the automobile (Porsche)
PTU Power Transfer Unit power transfer unit (wheel drive system used in the Dacia Duster)
PWM Pulse Width Modulation technique to control analog electronic equipment using a voltage of constant amplitude, rectangular waveform and frequency being variable
R2S Regulated 2-Stage turbocharging turbo chargers in two levels (BorgWarner)
RAM Random Access Memory A random-access memory allows data to be read and written in roughly the same amount of time regardless of the order in which data items are accessed
RON Research Octane Number the ‘Research’ method for calculating the octane number of gasoline
RSC Roll Stability Control electronic system for stability control of the vehicle (Ford)
SAC Self Adjusting Clutch clutch with compensation mechanism of disc attrition
SAE Society of Automotive Engineers U.S. based association and standards organization for engineering
SCCI Stratified Charge Compression Ignition stratified mixing engine and compression ignition
SCR Selective Catalytic Reduction method of treating the exhaust gas (NOx) based on urea
SCRT Selective Catalytic Reduction Technology
SHRTFT Short-term Fuel Trim short-term correction in the quantity of fuel injected
SIDI Spark Ignition Direct Injection spark-ignition engine and direct injection
SSR Self Supporting Runflat tire on which can be run when the pressure is loss
SULEV Super Ultra Low Emission Vehicle pollution levels regulated by CARB
SUV Sport Utility Vehicle suburban utility vehicle
TCO Total Cost of Ownership total cost of possession (includes cost of acquisition, use and maintenance of a product)
TCCS Torque Converter Clutch Solenoid clutch control valve of the blocking the hydraulic intensifier of an automatic gearbox
TCS Traction Control System electronic system of traction control
TCU Telematic Control Unit telematics control unit, with remote transmission of information (Nissan Leaf)
TCU Transmission Control Unit unitatea electronică de control a transmisiei (cutiei de viteze)
THS Toyota Hybrid System hybrid propulsion system from Toyota
TI-VCT Twin Independent – Variable
Camshaft Timing		 dual distribution system (inlet-outlet) from Ford
TPMS Tire Pressure Monitoring System monitoring system of air pressure in tires
TREAD Transportation Recall Enhancement, Accountability and Documentation document for regulating automobile transportation in the US
TSI Turbocharged Stratified Injection gasoline direct injection turbocharged from VW
TSP Trailer Stability Program electronic system for stability control of the automobile (Opel)
TWC Three-Way Catalyst three-way catalyst, which treats CO, HC and NOx
TWI Tread Wear Indicator indicator of the wear level of the tread
UEGO Universal Exhaust Gas Oxygen lambda planar probe
UIS Unit Injector System injection system with pump injectors
ULEV Ultra Low Emission Vehicle pollution levels regulated by CARB
VCM Vehicle Control Module vehicle control computer (Nissan Leaf)
VDC Vehicle Dynamic Control electronic system for stability control of the car (Fiat)
VDIM Vehicle Dynamics Integrated Management electronic system for stability control of the automobile (Lexus)
VDS Vehicle Descriptor Section description section of the car (used to VIN)
VGT Variable Geometry Turbine turbină cu geometrie variabilă
VIN Vehicle Identification Number unique identification code of a vehicle
VIS Vehicle Identifier Section identification section of the car (used to VIN)
VPW Variable Pulse Width Modulation rectangular electrical signal with variable period (frequency modulation)
VSA Vehicle Stability Assist electronic system for stability control of the vehicle (Acura)
VTEC Variable Valve Timing and Lift Electronic Control variable distribution system from Honda
VVA Variable Valve Actuation variable actuation of lifting height of the valve
VVT-i Variable Valve Timing with intelligence variable distribution system used by Toyota
WMI World Manufacturer Identifier international identification number of a car manufacturer (used in VIN)
WRC World Rally Championship a rallying series organised by the International Automobile Federation
ZEV Zero Emission Vehicle is a vehicle that emits no pollutants from the onboard source of power
ZF ZahnradFabrik german company for automotive industry of car components

Comments

  1. wrote on April 13th, 2020 at 12:14 am

    Riley Laban

    GOOD POST

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