GAR | WP.29 Terminology

3-D H machine

A-LCA Automotive Life Cycle Assessment

ABS Anti-lock Braking System: A part of the service brake that automatically cont...

AC.1 Administrative committee of the 1958 Agreement: The collective body of the Co...

AC.2 Administrative committee of WP.29: The collective body of the Contracting Par...

AC.3 Executive committee of the 1998 Agreement: The collective body of the Contrac...

ACE Advanced Compatibility Engineering (in reference to vehicle-on-vehicle crash ...

ADB Adaptive Driving Beam: vehicle headlamp technology

ADR European Agreement concerning the International Carriage of Dangerous Goods b...

AER mode All-electric range mode: range measurement mode where the electrified vehicle...

AES Auxiliary Emission Strategy (AES) means an emission strategy that becomes act...

AHS Advanced Headlamp System: Toyota Motor Corp. variant on adaptive driving beam...

ALKS Automated Lane-Keeping System

APF Abdominal Peak Force: criteria developed to assess injury risk to the intesti...

APTS Abdominal Pressure Twin Sensors: soft polyurethane bladders filled with fluid...

ASEAN Association of Southeast Asian Nations: A regional organization promoting coo...

ASPICE Automotive Software-based systems Process Improvement and Capability Determin...

ATD Anthropomorphic Test Device (i.e., biofidelic crash test dummies)

ATS After-treatment System (related to emissions control)

AVAS Presently unstable acronym related to minimum vehicle sound levels. Commonly...

Belt anchorages

BES Base Emission Strategy (BES) means an emission strategy that is active throug...

CASPER Child Advanced Safety Project for European Roads

CATARC China Automotive Technology and Research Center

CD mode Charge-depleting mode: An electrified vehicle operating mode in which the ene...

CEL Complex electronic control systems, in reference to the safety annex in braki...

CFC Channel Frequency Class: a 4-pole phaseless Butterworth filter used primarily...

CFF Circular Footprint Formula: A standardized equation used by the EU Product En...

CHSS Compressed Hydrogen Storage System

CNOSSOS CNOSSOS-EU (Common Noise Assessment Methods in Europe) is the mandatory stand...

continuous braking system A type of braking system used in vehicle combinations where the energy used f...

CoP Conformity of Production (procedures to ensure that volume production corresp...

CP Contracting Party: A UN member-state or regional economic integration organiz...

CPA Ceramic Printed Area: term used by the Panoramic Sunroof Glazing informal group

CPV Composite Pressure Vessel: Storage vessels for gases, such as hydrogen, where...

CRF Child restraint fixture: a device used to test the placement and strength of ...

CS mode Charge-sustaining mode: An electrified vehicle operating mode in which the en...

CSMS Cyber Security Management System: Relates to the certification of management ...

CUNA Commissione Tecnica di Unificazione nell'Autoveicolo (Italian vehicle standar...

CVS Constant Volume Sampler: an apparatus to withdraw a defined and representativ...

DDT “Dynamic Driving Task (DDT)” means the real-time operational and tactical fun...

DEF Diesel exhaust fluid: a urea-based solution used by Selective Catalytic Reduc...

Defeat Strategy Defeat Strategy means an emission strategy that does not meet the performance...

DEQ Equivalent Deflection Criteria (relates to crash test performance of test dum...

DF Deterioration Factors: factors applied to emission test data to approximate e...

DOC Diesel Oxidation Catalysts

DPF Diesel Particulate Filter

DSSA Data Storage System for ACSF: a device to record data regarding vehicle situa...

DUT Device under test: abbreviation used in SAE and other technical standards

EEVC European Enhanced Vehicle-safety Committee; sometimes European Electric Vehic...

EGR Exhaust Gas Recirculation

Emission Strategy Emission Strategy means an element or set of elements of design that is incor...

EMRP European Metrology Research Programme

EMS European Modular System (EMS) is a concept of allowing combinations of existi...

EPOCh Enabling Protection for Older Children: 2009-11 EU program to improve child r...

EPPR Environmental and Propulsion Performance Requirements

ERB Electric Regenerative Braking

ESA

ETC European Test Cycle (relates to emissions and fuel-efficiency test procedures)

EU European Union, an REIO comprised of Belgium, France, Germany, Italy, Luxembo...

EVADER Electric Vehicle Alert for Detection and Emergency Response (European tertiar...

FAC Femur Acceptability Criterion

FCEV Fuel Cell Electric Vehicle: Also known under GTR 13 and UN R134 as a hydrogen...

FCHV Fuel-cell hybrid vehicle

FCI Functional Capacity Index: a method to quantify a person's physical capabilit...

FDIS Final Draft International Standard: stage in the promulgation of an ISO stand...

FlexPLI Flexible Pedestrian Lower Legform Impactor

FMVSS Federal Motor Vehicle Safety Standards

FWDB Full width deformable barrier (as used in reference to vehicle crash testing)

FWRB Full width rigid barrier (as used in reference to vehicle crash testing)

GB Guóbiāo (国标) — literally "national standard" in Chinese (国 = national, 标 = st...

GHG Greenhouse Gas: Related to work on tailpipe emissions, including CO2 emissions.

GID Guidance and Interpretation Document

GIDAS German In-Depth Accident Study: an ongoing project between BASt, the Universi...

GNSS Global Navigation Satellite System: any satellite navigation system with glob...

GR from the French "Groupe de Rapporteurs"; signifies any of the permanent worki...

GRB Working Party on Noise (cf French: Groupe de Rapporteurs sur le Bruit)

GRE Working Party on Lighting and Light-signalling Equipment (cf French: Groupe d...

GRPE Working Party on Pollution and Energy (cf French: Groupe de Rapporteurs sur l...

GRRF Working Party on Brakes and Running Gear (cf French: Groupe de Rapporteurs su...

GRSG Working Party on General Safety (cf French: Groupe de Rapporteurs sur la Sécu...

GRSP Working Party on Passive Safety (cf French: Groupe de Rapporteurs sur la Sécu...

GSA Europe: European Global Navigation Satellite Systems Agency; USA: General Ser...

GSMA GSM Association, international association of mobile telecommunications syste...

GTR Global Technical Regulation

H point

HARA Hazard Analysis and Risk Assessment

HDH Heavy-duty hybrid

HEV Hybrid electric vehicle

HIC Head Injury Criterion

HIT Head Impact Time: The calculated time elapsed from the first contact between ...

HMI Human Machine Interface

HOR Hands-On Request: A system-generated prompt requesting the driver to put thei...

IIWPG International Insurance Whiplash Prevention Group

IRCOBI International Research Council on the Biomechanics of Injury

ISC Internal Short Circuit: acronym used in the context of electric vehicle safet...

ISOFIX An internationally standardized system (i.e., ISO 13216) for attaching child ...

IWG Informal Working Group: A group of experts authorized to develop proposals fo...

KSI Killed or seriously injured; traffic collision events where a person sustaine...

L-IWVTA Limited International Whole Vehicle Type Approval: Type approval to a lower l...

LCA Life Cycle Assessment: Relates to work on an Automotive Life Cycle Assessment...

LEA Light Emitting Area: The surface of a light source that emits light.

LED Light-Emitting Diode: A semiconductor device that emits light when energized ...

LEON-T Low particle Emissions and lOw Noise Tyres: An EU-funded research project tha...

LHSS Liquefied hydrogen storage system: liquefied hydrogen storage container(s), p...

LMO Lithium Manganese Oxide: A type of lithium-ion battery cathode chemistry.

LNC Lean NOx Catalyst: Catalysts selectively promoting the reduction of NOx by hy...

LS Light Source: A prefix referring to the GTB light source taxonomy.

MI Malfunction indicator

MPR Minimum Performance Requirement, especially used in EV battery durability reg...

MRM Minimal Risk Maneuver: under automated driving functions, an automated system...

MSA Market Surveillance Authority: term for in-use compliance and enforcement aut...

NASVA National Agency for Automotive Safety & Victim's Aid (Japan)

NCAP New Car Assessment Program

NCM Nickel Cobalt-oxide Manganese: A type of lithium-ion battery cathode chemistry

NCM-LMO NCM-LMO refers to a blended cathode combining Nickel-Cobalt-Manganese and Lit...

NGO Non-Governmental Organization: A not-for-profit group, principally independen...

NL Normal Litre: (also written as Nl or N litre) a unit of gas volume measured u...

NOVC Not-off-vehicle charging: a system to recharge a hybrid vehicle's electrochem...

NPACS New Program for the Assessment of Child-restraint Systems

NTCAS National Technical Committee for Automotive Standardization: department withi...

OATS Open Area Test Site: refers to testing location for radiated emissions assess...

OBD On-Board Diagnostics: A system on board a vehicle that detects, records, and ...

OBFCM On-Board Fuel Consumption Monitoring: Related to UN R154 "On-board Fuel and/o...

OEDR object and event detection and response: term used under SAE J3016 with regar...

OEM Original Equipment Manufacturer: The original vehicle manufacturer

OICA International Organization of Vehicle Manufacturers (cf, French Organisation ...

ORB (Rigid) Override Barrier (as used in vehicle compatibility crash testing)

ORD Observer Rating of Drowsiness

OTA Over the Air: A method of delivering and installing software updates to a veh...

OUL Outside of Useful Life: reference to US EPA regulatory definitions of engine ...

Outboard With reference to seating, this term means a position adjacent to a door of t...

OVC Off-vehicle charging: a system to recharge a hybrid vehicle's electrochemical...

PADI Procedures for Assembly, Disassembly, and Inspection

PBC Peak braking coefficient: the measure of tire to road surface friction based ...

PDI-2 The Pedestrian Detection Impactor 2 was developed jointly by the Altran Conce...

PEAS Primary Energy Absorbing Structures (in reference to vehicle crash testing)

PEMS Portable Emissions Measurement System

PEV Plug-in electric vehicle

PLSDF Point light source detection factor as it pertains to the representation of h...

PMHS Post-Mortem Human Subject

PMI With regard to injury criteria, permanent medical impairment.

PRD Pressure-relief device

PSAP Public Safety Answering Point (sometimes, public safety access point) used in...

PSPF Pubic Symphysis Peak Force: maximum force measured by a load cell at the pubi...

R point

R&R With regard to test procedures, repeatability and reproducibility (i.e., the ...

RCB REESS Charge Balance: the charge balance of the rechargeable energy storage ...

Rcda Actual charge-depleting range (of an electric vehicle) represents the distan...

RDC Rib Deflection Criterion

REC Retrofit Emissions Control (relates to regulation of retrofit emissions contr...

REESS Rechargeable Electrical Energy Storage System: term to cover Li-ion batteries...

RFT Run-Flat Tire

RFWS Run-Flat Warning System (in relation to tires)

RLD Road Load Determination: adjustment made to a chassis dynamometer to simulate...

RMF Risk Mitigation Function: An emergency function which can, in the event the d...

RMSSE root mean squared speed error: A measure of the difference between values pre...

RRC Rolling Resistance Coefficient: Measurement of energy loss due to rolling tyr...

RSS Responsibility-Sensitive Safety: A mathematical model developed by Mobileye t...

RVCR Regulation of Vehicle Construction Requirements: a European Union framework r...

RVFSR Regulation on vehicle functional safety requirements

RXSWIN Regulation Software Identification Number: A dedicated identifier, defined by...

Sailing Sailing involves the decoupling of the engine from the drive shaft, enabling ...

SCR Selective Catalytic Reduction: active emissions control technology system use...

SDWEE Service doors, windows, and emergency exits (in relation to buses and motor c...

SEAS Secondary Energy Absorbing Structures (in reference to vehicle crash testing)

semi-continuous braking system A type of braking system used in vehicle combinations where the energy used f...

SET Seat Evaluation Tool(s)

SHED Sealed Housing for Evaporative Determination: a gas-tight, climate-controlled...

SOC State of Charge (related to electric vehicle testing and specifically batter...

SOCE State of Certified Energy: The ratio of the currently usable energy of an REE...

SOCR State of Certified Range: The ratio of the currently achievable range of an e...

SSRT Slow-strain-rate tensile properties; used with regard to hydrogen safety. Th...

STU Separate Technical Unit: Refers to the approval of a component in a larger sy...

SUMS Software Updates Management System: Relates to certification of management pr...

TAA Type Approval Authority

TAAM Type Approval Authorities Meeting

TBF Time-Based File: The data export specified in paragraph 13.2 of UN GTR No. 24.

TEMA Transport tEchnology and Mobility Assessment Platform: Big data platform, bas...

ThAC Thorax Acceptability Criterion

THUMS Total Human Model for Safety: Toyota-developed highly detailed digital repres...

TPM Tire-Pressure Monitoring

TPMS Tire-Pressure Monitoring System

TPRD Thermally activated pressure relief device

U-IWVTA Universal International Whole Vehicle Type Approval: Type approval pursuant t...

UBE Usable battery energy (difference between a fully depleted battery and its fu...

UNECE United Nations Economic Commission for Europe

UNEP United Nations Environment Programme

VC Viscous Criterion (velocity of compression); AKA soft tissue criterion; an in...

VRU Vulnerable Road User: A person using the road who lacks the protection of an ...

WAD Whiplash Associated Disorders: an injury severity scale developed in Canada i...

WHTC Worldwide Harmonized Transient Cycle: test cycle for the certification of hea...

WHVC Worldwide Harmonized Vehicle Cycle: heavy-duty vehicle test cycle as develope...

WLTC Worldwide harmonized Light duty driving Test Cycle (emissions and fuel consum...

WTVC Worldwide Transient Vehicle Cycle: WTVC test cycle is derived from real-world...