1 Scope
This standard specifies the terms and definitions, technical requirements and test methods for advanced emergency braking system (AEBS) of passenger cars.
This standard is applicable to Category M1 vehicles equipped with AEBS.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 4094-2016 Symbols for controls, indicators and tell-tales of vehicles
GB/T 5620 Road vehicles — Braking of automotive vehicles and their trailers — Terms and definitions
GB 21670-2008 Technical requirements and testing methods for passenger vehicle and braking systems
GB/T 34590.1~34590.10 Road vehicles — Functional safety
GB 34660 Road vehicles — Requirements and test methods of electromagnetic compatibility
3 Terms and definitions
For the purposes of this document, the terms and definitions established in GB/T 5620 and the following ones apply.
3.1
advanced emergency braking system; AEBS
system that monitors the driving environment in front of the vehicle in real time, and automatically starts the vehicle braking system to slow down the vehicle at risk of collision, so as to avoid or reduce collision
3.2
subject vehicle
vehicles tested according to relevant requirements of passenger car AEBS
3.3
target
ordinary passenger car manufactured in large quantities and defined according to GB/T 3730.1, or representative object whose detection parameters can represent such passenger cars and whose characteristics are applicable to AEBS sensing detection
3.4
stationary target
target which stays stationary in the center of the same lane in front of the subject vehicle
3.5
moving target
target moving in the same direction at a constant speed in the center of the same lane in front of the subject vehicle
3.6
braking target
target driving in the same direction with the subject vehicle at a constant speed right in front of the subject vehicle in the center of driving route, then starting to decelerate
3.7
emergency braking phase
phase when the subject vehicle starts to decelerate at least 4 m/s2 under the control of AEBS
3.8
common space
area where two or more information functions (e.g., marks) may be displayed asynchronously
[GB 4094-2016, 3.6]
3.9
time to collision; TTC
time obtained by dividing the distance between the subject vehicle and the target by the instantaneous relative speed of the subject vehicle and the target
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
Annex A (Normative) Functional safety requirements
Bibliography
1 Scope
This standard specifies the terms and definitions, technical requirements and test methods for advanced emergency braking system (AEBS) of passenger cars.
This standard is applicable to Category M1 vehicles equipped with AEBS.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 4094-2016 Symbols for controls, indicators and tell-tales of vehicles
GB/T 5620 Road vehicles — Braking of automotive vehicles and their trailers — Terms and definitions
GB 21670-2008 Technical requirements and testing methods for passenger vehicle and braking systems
GB/T 34590.1~34590.10 Road vehicles — Functional safety
GB 34660 Road vehicles — Requirements and test methods of electromagnetic compatibility
3 Terms and definitions
For the purposes of this document, the terms and definitions established in GB/T 5620 and the following ones apply.
3.1
advanced emergency braking system; AEBS
system that monitors the driving environment in front of the vehicle in real time, and automatically starts the vehicle braking system to slow down the vehicle at risk of collision, so as to avoid or reduce collision
3.2
subject vehicle
vehicles tested according to relevant requirements of passenger car AEBS
3.3
target
ordinary passenger car manufactured in large quantities and defined according to GB/T 3730.1, or representative object whose detection parameters can represent such passenger cars and whose characteristics are applicable to AEBS sensing detection
3.4
stationary target
target which stays stationary in the center of the same lane in front of the subject vehicle
3.5
moving target
target moving in the same direction at a constant speed in the center of the same lane in front of the subject vehicle
3.6
braking target
target driving in the same direction with the subject vehicle at a constant speed right in front of the subject vehicle in the center of driving route, then starting to decelerate
3.7
emergency braking phase
phase when the subject vehicle starts to decelerate at least 4 m/s2 under the control of AEBS
3.8
common space
area where two or more information functions (e.g., marks) may be displayed asynchronously
[GB 4094-2016, 3.6]
3.9
time to collision; TTC
time obtained by dividing the distance between the subject vehicle and the target by the instantaneous relative speed of the subject vehicle and the target
Contents of GB/T 39901-2021
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
Annex A (Normative) Functional safety requirements
Bibliography
